AMERICAN CENTURY MUTUAL FUNDS, INC. (Form: 485BPOS, Received: 02/27/2018 11:10:48)

As Filed with the U.S. Securities and Exchange Commission on February 27, 2018

1933 Act File No. 002-14213

1940 Act File No. 811-00816



UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549
__________________
FORM N-1A
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REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	☒

Pre-Effective Amendment No.	☐

Post-Effective Amendment No. 153	☒

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	☒

Amendment No. 152	☒
(Check appropriate box or boxes.)
__________________
American Century Mutual Funds, Inc. (Exact Name of Registrant as Specified in Charter)
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4500 MAIN STREET, KANSAS CITY, MISSOURI 64111 (Address of Principal Executive Offices)(Zip Code)
REGISTRANT’S TELEPHONE NUMBER, INCLUDING AREA CODE: (816) 531-5575
CHARLES A. ETHERINGTON 4500 MAIN STREET, KANSAS CITY, MISSOURI 64111 ( Name and Address of Agent for Service)
Approximate Date of Proposed Public Offering: March 1, 2018

It is proposed that this filing will become effective (check appropriate box)



☐	immediately upon filing pursuant to paragraph (b)
☒	on March 1, 2018, at 8:30 AM (Central) pursuant to paragraph (b)
☐	60 days after filing pursuant to paragraph (a)(1)
☐	on (date) pursuant to paragraph (a)(1)
☐	75 days after filing pursuant to paragraph (a)(2)
☐	on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:
☐	this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

March 1, 2018

American Century Investments

Prospectus

Adaptive Equity Fund

Investor Class (AMVIX)

I Class (AVDIX)

A Class (AVDAX)

R Class (AVDRX)

R6 Class (AVDMX)



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	4
Portfolio Management	5
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	16
Share Price and Distributions	20
Taxes	22
Multiple Class Information	24
Financial Highlights	25
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 12 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	A	R	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	5.75%	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None ²	None	None
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	A	R	R6
Management Fee	1.25%	1.05%	1.25%	1.25%	0.90%
Distribution and Service (12b-1) Fees	None	None	0.25%	0.50%	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.26%	1.06%	1.51%	1.76%	0.91%
Fee Waiver ³	0.10%	0.10%	0.10%	0.10%	0.10%
Total Annual Fund Operating Expenses After Fee Waiver	1.16%	0.96%	1.41%	1.66%	0.81%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of purchase.


³	The advisor has agreed to waive 0.10 percentage points of the fund’s management fee. The advisor expects this waiver to continue until February 28, 2019 and cannot terminate it prior to such date without the approval of the Board of Directors.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes that the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. You may be required to pay brokerage commissions on your purchases of Investor or I Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$118	$390	$683	$1,513
I Class	$98	$328	$576	$1,285
A Class	$711	$1,016	$1,343	$2,264
R Class	$169	$545	$946	$2,063
R6 Class	$83	$281	$495	$1,111

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Portfolio Turnover

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 85% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the fund will invest at least 80% of its net assets in equity securities. Equity securities include common stock, preferred stock and equity equivalents. The fund may change this 80% policy only upon 60 days’ prior written notice to shareholders.

The fund uses an approach to common stock investing developed by the fund’s investment advisor. This approach relies heavily on quantitative tools to identify attractive investment opportunities, regardless of company size, industry type or geographic location, on a disciplined, consistent basis.

The portfolio managers use these quantitative tools to rank stocks from most attractive to least attractive in a model that uses factors that the advisor believes are predictive of a stock’s performance. These factors can be classified into categories related to general market conditions and those based on stock specific criteria. Factors related to general market conditions help determine the importance of the stock specific criteria, which may include those related to valuation, quality, growth and sentiment. The managers also use portfolio optimization to provide a balance between risk and expected return.

In addition to investing in U.S. companies, the fund may invest in securities of foreign companies, including companies located in emerging markets when these securities meet the portfolio managers’ standards of selection.

The fund may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. This may cause higher transaction costs and may affect performance. It may also result in the realization and distribution of capital gains.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Value Stocks – If the market does not consider the individual stocks purchased by the fund to be undervalued, the value of the fund’s shares may decline, even if stock prices are generally rising.

•

Investment Process Risk - Stocks selected by the portfolio managers using quantitative models may perform differently than expected due to the portfolio managers’ judgments regarding the factors used in the models, the weight placed on each factor, changes from the factors’ historical trends, and technical issues with the construction and implementation of the models (including, for example, data problems and/or software or other implementation issues). There is no guarantee that the use of the quantitative model will result in effective investment decisions for the fund.


•	Small- and Mid-Cap Risks – The smaller companies in which the fund invests may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.

•

Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. Investing in securities of companies located in emerging market countries generally is also riskier than investing in securities of companies located in foreign developed countries.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

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Fund Performance

The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Investor Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

Calendar Year Total Returns

Highest Performance Quarter ( 3Q 2009 ): 18.92% Lowest Performance Quarter ( 3Q 2008 ): -25.25%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	20.97%	16.05%	5.84%	—	11/30/1999
Return After Taxes on Distributions	18.65%	14.78%	5.20%	—	11/30/1999
Return After Taxes on Distributions and Sale of Fund Shares	13.13%	12.65%	4.53%	—	11/30/1999
I Class Return Before Taxes	21.24%	16.27%	6.04%	—	08/01/2000
A Class ¹ Return Before Taxes	13.76%	14.40%	4.96%	—	12/01/2016
R Class ¹ Return Before Taxes	20.37%	15.46%	5.31%	—	12/01/2016
R6 Class Return Before Taxes	21.48%	—	—	22.77%	12/01/2016
Russell 1000 ^® Index (reflects no deduction for fees, expenses or taxes)	21.69%	15.70%	8.59%	—	—


¹	Historical performance for A Class and R Class prior to their inception is based on the performance of Investor Class shares. A and R Class performance has been adjusted to reflect differences in sales charges, if applicable, and expenses between classes.

The after-tax returns are shown only for Investor Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.

4 #

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Stephen Pool , Portfolio Manager, has been a member of the team that manages the fund since 2002.

Joseph Reiland , CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2017.

Purchase and Sale of Fund Shares

You may purchase or redeem shares of the fund on any business day through our website at americancentury.com, in person (at one of our Investor Centers), by mail (American Century Investments, P.O. Box 419200, Kansas City, MO 64141-6200), by telephone at 1-800-345-2021 (Investor Services Representative) or 1-800-345-3533 (Business, Not-For-Profit and Employer-Sponsored Retirement Plans), or through a financial intermediary. Shares may be purchased and redemption proceeds received by electronic bank transfer, by check or by wire.

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

The minimum initial investment amount for the I Class is generally $5 million ($3 million for endowments and foundations), but the minimum may be waived if you have an aggregate investment in the American Century family of funds of $10 million or more ($5 million for endowments and foundations). This includes accounts held directly with American Century and those held through a financial intermediary.

There is no minimum initial investment amount for R6 Class shares.

For Investor, A, R and R6 Classes, there is no minimum initial investment amount for certain employer-sponsored retirement plans, however, financial intermediaries or plan recordkeepers may require plans to meet different minimums. For purposes of fund minimums, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Employer-sponsored retirement plans are not eligible to invest in the I Class.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Fund distributions are generally taxable as ordinary income or capital gains, unless you are investing through a tax-deferred account such as a 401(k) or individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the R6 Class. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

In the event of exceptional market or economic conditions, the fund may take temporary defensive positions that are inconsistent with the fund’s principal investment strategies. To the extent the fund assumes a defensive position, it may not achieve its investment objective.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Growth stocks are typically priced higher than other stocks, in relation to earnings and other measures, because investors believe they have more growth potential. This potential may or may not be realized. If the portfolio managers’ assessment of a company’s prospects for earnings growth or how other investors will value the company’s earnings growth is incorrect, the price of the company’s stock may fall or fail to reach the value the managers have placed on it. Growth stock prices tend to fluctuate more dramatically than the overall stock market.

Similarly, if the market does not consider the value stocks purchased by the fund to be undervalued, the funds’ shares may not rise as high as other funds and may in fact decline, even if stock prices generally are increasing.

Stocks selected by the portfolio managers using quantitative models may perform differently than expected due to the portfolio managers’ judgments regarding the factors used in the models, the weight placed on each factor, changes from the factors’ historical trends, and technical issues with the construction and implementation of the models (including, for example, data problems and/or software or other implementation issues). There is no guarantee that the use of the quantitative model will result in effective investment decisions for the fund.

The fund invests in smaller companies. These companies may be more volatile, and subject to greater short-term risk, than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs. In addition, smaller companies may have less publicly available information.

The portfolio managers may buy a large amount of a company’s stock quickly and often will dispose of it quickly if it no longer meets their investment criteria. While the portfolio managers believe this strategy provides substantial appreciation potential over the long term, in the short term it can create a significant amount of share price volatility. This volatility can be greater than that of the average stock fund.

The fund may invest in securities of foreign companies. Foreign investment involves additional risks, including fluctuations in currency exchange rates, less stable political and economic structures, reduced availability of public information, and lack of uniform financial reporting and regulatory practices similar to those that apply in the United States. These factors make investing in foreign securities generally riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent the fund invests in foreign securities, the overall risk of the fund could be affected.

Investing in securities of companies located in emerging market countries generally is also riskier than investing in securities of companies located in foreign developed countries. Emerging market countries may have unstable governments and/or economies that

6 #

are subject to sudden change. These changes may be magnified by the countries’ emergent financial markets, resulting in significant volatility to investments in these countries. These countries also may lack the legal, business and social framework to support securities markets.

Market performance tends to be cyclical, and in the various cycles, certain investment styles may fall in and out of favor. If the market is not favoring the style embedded in the fund’s investment process, the fund’s gains may not be as big as, or its losses may be bigger than, other equity funds using different investment styles.

The value of the fund’s shares depends on the value of the stocks and other securities it owns. The value of the individual securities a fund owns will go up and down depending on the performance of the companies that issued them, general market and economic conditions, and investor confidence.

The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. The fund could experience a loss when selling securities, particularly if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining pricing for the securities sold or when the securities the fund wishes to sell are illiquid. Selling securities to meet such redemption requests also may increase transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets. Although the advisor seeks to minimize the impact of such transactions where possible, the fund’s performance may be adversely affected.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Board of Directors is responsible for overseeing the advisor’s management and operations of the fund pursuant to the management agreement. In performing their duties, Board members receive detailed information about the fund and its advisor regularly throughout the year, and meet at least quarterly with management of the advisor to review reports about fund operations. The directors’ role is to provide oversight and not to provide day-to-day management. More than three-fourths of the directors are independent of the fund’s advisor. They are not employees, directors or officers of, and have no financial interest in, the advisor or any of its affiliated companies (other than as shareholders of American Century Investments funds), and they do not have any other affiliations, positions or relationships that would cause them to be considered “interested persons” under the Investment Company Act of 1940.

The Investment Advisor

The fund’s investment advisor is American Century Investment Management, Inc. (the advisor). The advisor has been managing mutual funds since 1958 and is headquartered at 4500 Main Street, Kansas City, Missouri 64111.

The advisor is responsible for managing the investment portfolio of the fund and directing the purchase and sale of its investment securities. The advisor also arranges for transfer agency, custody and all other services necessary for the fund to operate.

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than R6 Class, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.

The rate of the fee is determined by applying a formula that takes into account the assets of the fund as well as certain assets, if any, of other clients of the advisor outside the American Century Investments fund family (such as subadvised funds and separate accounts) that use very similar investment teams and strategies (strategy assets). The use of strategy assets, rather than fund assets alone, in calculating the fund’s fee rate could allow the fund to realize scheduled cost savings more quickly. However, the fund’s strategy assets currently do not include assets of other client accounts. In addition, if such assets are acquired in the future, they may not be sufficient to result in a lower fee rate.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	A Class	R Class	R6 Class
Adaptive Equity	1.15%	0.95%	N/A ¹	N/A ¹	N/A ¹


¹	The A, R and R6 Classes had not operated for a full fiscal year as of October 31, 2017 . The Classes will pay the advisor a unified management fee calculated using the following schedule less any applicable fee waivers:



Investment Strategy Assets	A Class	R Class	R6 Class
First $500 million	1.250%	1.250%	0.900%
Next $500 million	1.100%	1.100%	0.750%
Over $1 billion	1.000%	1.000%	0.650%

A discussion regarding the basis for the Board of Directors’ approval of the fund’s investment advisory agreement with the advisor is available in the fund’s annual report to shareholders dated October 31, 2017 .

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for the fund as they see fit, guided by the fund’s investment objective and strategy.

8 #

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Stephen Pool

Mr. Pool, Portfolio Manager, has been a member of the team that manages the fund since 2002. He joined American Century Investments in 1992, became an investment analyst in 2002, and became a portfolio manager in 2009. He holds a bachelor’s degree in economics from Truman State University and an MBA in international business from Avila University.

Joseph Reiland

Mr. Reiland, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2017. He joined American Century Investments in 2000 as an investment analyst and became a portfolio manager in 2005. He has a bachelor’s degree in business administration from Washington University. He is a CFA charterholder.

The statement of additional information provides additional information about the accounts managed by the portfolio managers, the structure of their compensation, and their ownership of fund securities.

Fundamental Investment Policies

Shareholders must approve any change to the fundamental investment policies contained in the statement of additional information, as well as any change to the investment objective of the fund. The Board of Directors and/or the advisor may change any other policies or investment strategies described in this prospectus or otherwise used in the operation of the fund at any time, subject to applicable notice provisions.

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Most accounts automatically have access to the services listed under Ways to Manage Your Account when the account is opened. If you have questions about the services that apply to your account type, please call us.

Generally, once your account is established, any registered owner (including those on jointly owned accounts) or any trustee (including those on trust accounts with multiple trustees), or any authorized signer on business accounts with multiple authorized signers, may transact business by any of the methods described below. American Century reserves the right to require all owners or trustees or authorized signers to act together, at our discretion.

Account Maintenance Fee

If you hold Investor Class shares of any American Century Investments fund, or I Class shares of the American Century Diversified Bond Fund, in an American Century Investments account (i.e., not through a financial intermediary or employer-sponsored retirement plan account), we may charge you a $12.50 semiannual account maintenance fee if the value of those shares is less than $10,000. We will determine the amount of your total eligible investments twice per year, generally the last Friday in October and April. If the value of those investments is less than $10,000 at that time, we will automatically redeem shares in one of your accounts to pay the $12.50 fee as soon as administratively possible. Please note that you may incur tax liability as a result of the redemption. In determining your total eligible investment amount, we will include your investments in all personal accounts (including American Century Investments brokerage accounts) registered under your Social Security number. We will not charge the fee as long as you choose to manage your accounts exclusively online. You may enroll for exclusive online account management by visiting americancentury.com. Regardless of whether you manage your account online, you may request a paper copy of the prospectus, statement of additional information, or annual report free of charge.



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases

Current Investors: If you would like to make a wire purchase into an existing account, your bank will need the following information. (To invest in a new fund, please call us first to set up the new account.)


•	American Century Investments bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Open an account: If you are a current or new investor, you can open an account by completing and submitting our online application. Current investors also can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares* : Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Make additional investments: Call or use our Automated Information Line if you have authorized us to invest from your bank account. The Automated Information Line is available only to Investor Class shareholders.

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Make additional investments: Send your check or money order for at least $50 with an investment slip. If you don’t have an investment slip, include your name, address and account number on your check or money order.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Although each class of the fund’s shares represents an interest in the same fund, each has a different cost structure, as described below. Which class is right for you depends on many factors, including how long you plan to hold the shares, how much you plan to invest, the fee structure of each class, and how you wish to compensate your financial professional for the services provided to you. Your financial professional can help you choose the option that is most appropriate.

Investor Class

Investor Class shares are available for purchase without sales charges or commissions but may be subject to account or transaction fees if purchased through financial intermediaries. These shares are available to investors in retail brokerage accounts, broker-dealer-sponsored fee-based advisory accounts, other advisory accounts where fees are charged, and employer-sponsored retirement plans.

I Class

I Class shares are available for purchase without sales charges or commissions by endowments, foundations, large institutional investors and financial intermediaries. Employer-sponsored retirement plans may not invest in I Class shares, except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

A Class

A Class shares are available for purchase through broker-dealers and other financial intermediaries. These shares carry an initial sales charge and an ongoing distribution and service (12b-1) fee that is used to compensate your financial professional. See Calculation of Sales Charges below for commission amounts received by financial professionals on the purchase of A Class shares. The sales charge decreases with the size of the purchase, and may be reduced or eliminated in certain situations. See Reductions and Waivers of Sales Charges for A Class and CDSC Waivers below for a full description of the breakpoints, reductions and waivers that may be available through financial intermediaries in certain types of accounts or products.

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer the R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R6 Class

R6 Class shares are available for purchase without sales charges or commissions by participants in certain employer-sponsored retirement plans. R6 Class shares may be purchased or redeemed only through employer-sponsored retirement plans where a financial intermediary provides retirement recordkeeping services to plan participants.

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A Class shares, a hyperlink will take you directly to this disclosure.

The availability of the sales charge reductions and waivers discussed below will depend upon whether you purchase your shares directly from the fund or through a financial intermediary. Intermediaries may have different policies and procedures regarding the availability of these reductions or waivers. Please refer to Appendix A for information provided by certain financial intermediaries regarding their sales charge waiver or discount policies that are applicable to investors transacting in fund shares through such financial intermediary.

A Class

A Class shares are sold at their offering price, which is net asset value plus an initial sales charge. This sales charge varies depending on the amount of your investment, and is deducted from your purchase before it is invested. The sales charges and the amounts paid to your financial professional are:

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Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

There is no front-end sales charge for purchases of $1,000,000 or more, but if you redeem your shares within one year of purchase you will pay a deferred sales charge of 1.00% of the lower of the original purchase price or the current market value at redemption, subject to the exceptions listed below. No sales charge applies to reinvested dividends. No dealer commission will be paid to your financial professional for purchases by certain employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Reductions and Waivers of Sales Charges for A Class

You may qualify for a reduction or waiver of certain sales charges, but you or your financial professional must provide certain information, including the account numbers of any accounts to be aggregated, to American Century Investments at the time of purchase in order to take advantage of such reduction or waiver. If you hold assets among multiple intermediaries, it is your responsibility to inform your intermediary and/or American Century Investments at the time of purchase of any accounts to be aggregated.

You and your immediate family (which includes your spouse or domestic partner and children, step-children, parents or step-parents of you, your spouse or domestic partner) may combine investments in any share class of any American Century Investments fund (excluding certain assets in money market accounts, but including account assets invested in Qualified Tuition Programs under Section 529) to reduce your A Class sales charge in the following ways:

Account Aggregation . Investments made by you and your immediate family may be aggregated at each account’s current market value if made for your own account(s) and/or certain other accounts, such as:


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

For purposes of aggregation, only investments made through individual-level accounts may be combined. Assets held in multiple participant employer-sponsored retirement plans may be aggregated at a plan level.

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

Rights of Accumulation. You may take into account the current value of your existing holdings, less any commissionable shares in the money market funds, in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

Letter of Intent. A Letter of Intent allows you to combine all purchases of any share class of any American Century Investments fund you intend to make over a 13-month period to determine the applicable sales charge, except for purchases in the A or C Class of money market funds. At your request, existing holdings may be combined with new purchases and sales charge amounts may be adjusted for purchases made within 90 days prior to our receipt of the Letter of Intent. Capital appreciation, capital gains and reinvested dividends earned during the Letter of Intent period do not apply toward its completion. A portion of your account will be held in escrow to cover additional A Class sales charges that will be due if your total investments over the 13-month period do not qualify for the applicable sales charge reduction.

Waivers for Certain Investors . The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee

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•	Current officers, directors and employees of American Century Investments

•

Certain group employer-sponsored retirement plans, where plan level or omnibus accounts are held with the fund, or shares are purchased by certain retirement plans that are part of a retirement plan or platform offered by banks, broker dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers. For purposes of this waiver, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. However, SEP IRA, SIMPLE IRA or SARSEP retirement plans that (i) held shares of an A Class fund prior to March 1, 2009 that received sales charge waivers or (ii) held shares of an Advisor Class fund that was renamed A Class on March 1, 2010, may permit additional purchases by new and existing participants in A Class shares without an initial sales charge. Refer to Buying and Selling Fund Shares in the statement of additional information.


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

An investor who receives a sales charge waiver for purchases of fund shares through a financial intermediary may become ineligible to receive such waiver if the nature of the investor’s relationship with and/or the services it receives from the financial intermediary changes. Please consult with your financial professional for further details.

Calculation of Contingent Deferred Sales Charge (CDSC)

To minimize the amount of the CDSC you may pay when you redeem shares, the fund will first redeem shares acquired through reinvested dividends and capital gain distributions, which are not subject to a CDSC. Shares that have been in your account long enough that they are not subject to a CDSC are redeemed next. For any remaining redemption amount, shares will be sold in the order they were purchased (earliest to latest).

CDSC Waivers

Any applicable CDSC for the A Class shares may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½


•	required minimum distributions from retirement accounts upon reaching age 70 ¹ ⁄2


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Within 90 days of a redemption, dividend payment or capital gains distribution of any A Class shares, you may reinvest all or a portion of the proceeds in A Class shares of any American Century Investments fund at the then-current net asset value without paying an initial sales charge. At your request, any CDSC you paid on an A Class redemption that you are reinvesting will be credited to your account. You may use the privilege only once per account. This privilege may only be invoked by the original account owner to reinvest shares in an account with the same registration as the account from which the redemption or distribution originated. This privilege does not apply to systematic or automatic transactions, including, for example, automatic purchases, withdrawals and payroll deductions. If you wish to use this reinvestment privilege, you or your financial professional must provide written notice to American Century Investments.

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, R and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century does not impose minimum initial investment amount, plan size or participant

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number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

For purposes of computing any applicable CDSC on shares that have been exchanged, the holding period will begin as of the date of purchase of the original fund owned. Exchanges from a money market fund are subject to a sales charge on the fund being purchased, unless the money market fund shares were acquired by exchange from a fund with a sales charge or by reinvestment of dividends or capital gains distributions.

Moving Between Share Classes and Accounts

You may move your investment between share classes (within the same fund or between different funds) in certain circumstances deemed appropriate by American Century Investments. You also may move investments held in certain accounts to a different type of account if you meet certain criteria. Please contact your financial professional for more information about moving between share classes or account types.

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

In addition, your financial intermediary may charge a transaction fee for the purchase or sale of fund shares. Those charges are retained by the financial intermediary and are not shared with American Century Investments or the fund. Please contact your financial intermediary or plan sponsor for a complete description of its policies. Copies of the fund’s annual report, semiannual report and statement of additional information are available from your financial intermediary or plan sponsor.

The fund has authorized certain financial intermediaries to accept orders on the fund’s behalf. American Century Investments has selling agreements with these financial intermediaries requiring them to track the time investment orders are received and to comply with procedures relating to the transmission of orders. Orders must be received by the financial intermediary on the fund’s behalf before the time the net asset value is determined in order to receive that day’s share price. If those orders are transmitted to American Century Investments and paid for in accordance with the selling agreement, they will be priced at the net asset value next determined after your request is received in the form required by the financial intermediary.

If you submit a transaction request through a financial intermediary that does not have a selling agreement with us, or if the financial intermediary’s selling agreement does not cover the type of account or share class requested, we may reject or cancel the transaction without prior notice to you or the intermediary.

Investor and I Class shares may also be available on brokerage platforms of financial intermediaries that have agreements with American Century Investments to offer such shares solely when acting as an agent for the shareholder. A shareholder transacting in Investor or I Class shares in these programs may be required to pay a commission and/or other forms of compensation to the broker. Shares of the fund are available in other share classes that have different fees and expenses.

See Additional Policies Affecting Your Investment for more information about investing with us.

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Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares

The fund’s Investor Class shares are available for purchase directly from American Century Investments and through the following types of products, programs or accounts offered by financial intermediaries:


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

The fund reserves the right, when in the judgment of American Century Investments it is not adverse to the fund’s interest, to permit all or only certain types of investors to open new accounts in the fund, to impose further restrictions, or to close the fund to any additional investments, all without notice.

Minimum Initial Investment Amounts for Investor, A and R Classes

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500. Investors opening accounts through financial intermediaries may open an account with $250, but the financial intermediaries may require their clients to meet different investment minimums. See Investing Through a Financial Intermediary for more information.



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

There is a $50 minimum for subsequent purchases. See Ways to Manage Your Account for more information about making additional investments directly with American Century Investments. However, there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans, but financial intermediaries may require their clients to meet different subsequent purchase requirements.

Eligibility for I Class Shares

The I Class shares are made available for purchase by individuals and large institutional shareholders such as bank trust departments, corporations, endowments, foundations and financial advisors that meet the fund’s minimum investment requirements. Employer-sponsored retirement plans may not invest in I Class shares, except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

Minimum Initial Investment Amounts for I Class

The minimum initial investment amount is generally $5 million ($3 million for endowments and foundations) per fund. If you invest with us through a financial intermediary, this requirement may be met if your financial intermediary aggregates your investments with those of other clients into a single group, or omnibus, account that meets the minimum. The minimum investment requirement may be waived if you have an aggregate investment in the American Century family of funds of $10 million or more ($5 million for endowments and foundations). This includes accounts held directly with American Century and those held through a financial intermediary. American Century Investments also may waive the minimum initial investment in situations it deems appropriate.

American Century Investments may permit an intermediary to waive the minimum per shareholder as provided in Buying and Selling Fund Shares in the Statement of Additional Information.

Eligibility for R6 Class Shares

The fund’s R6 Class shares are generally available only through employer-sponsored retirement plans where a financial intermediary provides retirement recordkeeping services to plan participants. To be eligible, plan level or omnibus accounts must be held on the books of the fund. R6 Class shares also are available to funds of funds advised by American Century and unaffiliated funds of funds sold primarily to the employer-sponsored retirement plan market.

R6 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

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Minimum Initial Investment Amounts (R6 Class)

There is no minimum initial investment amount or subsequent investment amount for R6 Class shares, but financial intermediaries or plan recordkeepers may require plans to meet different investment minimums.

Redemptions

Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order. In certain cases, if you sell A Class shares, you may pay a sales charge, depending on how long you have held your shares, as described in the section below.

Generally, we expect to remit your redemption proceeds to you one business day after we process your transaction. However, we reserve the right to delay delivery of redemption proceeds up to seven days. For example, each time you make an investment with American Century Investments, there is a seven-day holding period before we will release redemption proceeds from those shares, unless you provide us with satisfactory proof that your purchase funds have cleared. Investments by wire generally require only a one-day holding period. If you change your address, we may require that any redemption request made within seven days be submitted in writing and be signed by all authorized signers with their signatures guaranteed. We may also require a signature guarantee for redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Under normal market conditions, the fund generally meets redemption requests through its holdings of cash or cash equivalents or by selling portfolio securities. However, we reserve the right to honor certain redemptions with securities, rather than cash, as described in the next section. Additionally, the fund may consider interfund lending to meet redemption requests. The fund is more likely to use these other methods to meet large redemption requests or during times of market stress.

Special Requirements for Large Redemptions

If, during any 90-day period, you redeem fund shares worth more than $250,000 (or 1% of the value of a fund’s assets if that amount is less than $250,000), we reserve the right to pay part or all of the redemption proceeds in excess of this amount in readily marketable securities instead of in cash. To the extent practicable, these securities will represent your pro rata share of the fund’s securities.

We will value these securities in the same manner as we do in computing the fund’s net asset value. We may provide these securities in lieu of cash without prior notice. Also, if payment is made in securities, you may have to pay brokerage or other transaction costs to convert the securities to cash. These securities remain subject to market risk until sold, and you may incur capital gains and/or losses when you sell the securities.

If your redemption would exceed this limit and you would like to avoid being paid in securities, please provide us with an unconditional instruction to redeem at least 15 days prior to the date on which the redemption transaction is to occur. The instruction must specify the dollar amount or number of shares to be redeemed and the date of the transaction. This minimizes the effect of the redemption on a fund and its remaining investors.

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

Generally, dividends and distributions cannot be paid by check for an amount less than $50. Any such amount will be automatically reinvested in additional shares. The fund reserves the right to reinvest any dividend or distribution amount you elect to receive by check if your check is returned as undeliverable or if you do not cash your check within six months. Interest will not accrue on the amount of your uncashed check. We will reinvest your check into your account at the NAV on the day of reinvestment. When reinvested, those amounts are subject to the risk of loss like any other fund investment. We also reserve the right to change your election to receive dividends and distributions in cash after a check is returned undeliverable or uncashed for the six month period, and we may automatically reinvest all future dividends and distributions at the NAV on the date of the payment.

Signature Guarantees

A signature guarantee — which is different from a notarized signature — is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;

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•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

American Century Investments will use its best efforts to honor your request to revoke a transaction instruction if your revocation request is received prior to the close of trading on the New York Stock Exchange (NYSE) (generally 4 p.m. Eastern time) on the trade date of the transaction. Once processing has begun, or the NYSE has closed on the trade date, the transaction can no longer be canceled. Each fund reserves the right to suspend the offering of shares for a period of time and to reject any specific investment (including a purchase by exchange). Additionally, we may refuse a purchase if, in our judgment, it is of a size that would disrupt the management of a fund.

Frequent Trading Practices

Frequent trading and other abusive trading practices may disrupt portfolio management strategies and harm fund performance. If the cumulative amount of frequent trading activity is significant relative to a fund’s net assets, the fund may incur trading costs that are higher than necessary as securities are first purchased then quickly sold to meet the redemption request. In such case, the fund’s performance could be negatively impacted by the increased trading costs created by frequent trading if the additional trading costs are significant.

Because of the potentially harmful effects of abusive trading practices, the fund’s Board of Directors has approved American Century Investments’ abusive trading policies and procedures, which are designed to reduce the frequency and effect of these activities in our funds. These policies and procedures include monitoring trading activity, imposing trading restrictions on certain accounts, and using fair value pricing when current market prices are not readily available. Although these efforts are designed to discourage abusive trading practices, they cannot eliminate the possibility that such activity will occur. American Century Investments seeks to exercise its judgment in implementing these tools to the best of its ability in a manner that it believes is consistent with shareholder interests.

American Century Investments uses a variety of techniques to monitor for and detect frequent trading practices. These techniques may vary depending on the type of fund, the class of shares or whether the shares are held directly or indirectly with American Century Investments. They may change from time to time as determined by American Century Investments in its sole discretion. To minimize harm to the funds and their shareholders, we reserve the right to reject any purchase order (including exchanges) from any shareholder we believe has a history of frequent trading or whose trading, in our judgment, has been or may be disruptive to the funds. In making this judgment, we may consider trading done in multiple accounts under common ownership or control.

Currently, for shares held directly with American Century Investments, we may deem the sale of all or a substantial portion of a shareholder’s purchase of fund shares to be frequent trading if the sale is made:


•	within seven days of the purchase; or


•	within 30 days of the purchase, if it happens more than once per year.

To the extent practicable, we try to use the same approach for defining frequent trading for shares held through financial intermediaries. American Century Investments reserves the right, in its sole discretion, to identify other trading practices as abusive and to modify its monitoring and other practices as necessary to deal with novel or unique abusive trading practices.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

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For shares held in employer-sponsored retirement plans, generally only participant-directed exchange transactions are subject to the frequent trading restrictions. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs, or SARSEPs.

In addition, American Century Investments reserves the right to accept purchases and exchanges in excess of the trading restrictions discussed above if it believes that such transactions would not be inconsistent with the best interests of fund shareholders or this policy.

American Century Investments’ policies do not permit us to enter into arrangements with fund shareholders that permit such shareholders to engage in frequent purchases and redemptions of fund shares. Due to the complexity and subjectivity involved in identifying abusive trading activity and the volume of shareholder transactions American Century Investments handles, there can be no assurance that American Century Investments’ efforts will identify all trades or trading practices that may be considered abusive. American Century Investments monitors aggregate trades placed in omnibus accounts and works with financial intermediaries to identify shareholders engaging in abusive trading practices and impose restrictions to discourage such practices. Because American Century Investments relies on financial intermediaries to provide information and impose restrictions, our ability to monitor and discourage abusive trading practices in omnibus accounts may be dependent upon the intermediaries’ timely performance of such duties and restrictions may not be applied uniformly in all cases.

Your Responsibility for Unauthorized Transactions

American Century Investments and its affiliated companies use procedures reasonably designed to confirm that telephone, electronic and other instructions are genuine. These procedures include recording telephone calls, requesting additional identifying information, requiring personalized security codes or other information online, and sending confirmation of transactions. If we follow these procedures, we are not responsible for any losses that may occur due to unauthorized instructions. For transactions conducted over the Internet, we recommend the use of a secure Internet browser. In addition, you should verify the accuracy of your confirmation statements immediately after you receive them.

A Note About Mailings to Shareholders

To reduce the amount of mail you receive from us, we generally deliver a single copy of fund documents (like shareholder reports, proxies and prospectuses) to investors who share an address, even if their accounts are registered under different names. Investors who share an address may also receive account-specific documents (like statements) in a single envelope. If you prefer to receive your documents addressed individually, please call us or your financial professional. For American Century Investments brokerage accounts, please call 1-888-345-2071.

Right to Change Policies

We reserve the right to change any stated investment requirement, including those that relate to purchases, exchanges and redemptions. In accordance with applicable law, we also may alter, add or discontinue any service or privilege. Changes may affect all investors or only those in certain classes or groups. In addition, from time to time we may waive a policy on a case-by-case basis, as the advisor deems appropriate.

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Share Price and Distributions

Share Price

American Century Investments will price the fund shares you purchase, exchange or redeem based on the net asset value (NAV) next determined after your order is received in good order by the fund’s transfer agent, or other financial intermediary with the authority to accept orders on the fund’s behalf. We determine the NAV of the fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange or traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.

If the fund determines that the market price for a portfolio security is not readily available or that the valuation methods mentioned above do not reflect the security’s fair value, such security is valued as determined in good faith by the fund’s board or its designee, in accordance with procedures adopted by the fund’s board. Circumstances that may cause the fund to use alternate procedures to value a security include, but are not limited to:


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

If such circumstances occur, the fund will fair value the security if the fair valuation would materially impact the fund’s NAV. While fair value determinations involve judgments that are inherently subjective, these determinations are made in good faith in accordance with procedures adopted by the fund’s board.

The effect of using fair value determinations is that the fund’s NAV will be based, to some degree, on security valuations that the board or its designee believes are fair rather than being solely determined by the market.

With respect to any portion of the fund’s assets that are invested in one or more open-end management investment companies that are registered with the SEC (known as registered investment companies), the fund’s NAV will be calculated based upon the NAVs of such registered investment companies. These registered investment companies are required by law to explain the circumstances under which they will use fair value pricing and the effects of using fair value pricing in their prospectuses.

Trading of securities in foreign markets may not take place every day the NYSE is open. Also, trading in some foreign markets and on some electronic trading networks may take place on weekends or holidays when the fund’s NAV is not calculated. So, the value of the fund’s portfolio may be affected on days when you will not be able to purchase, exchange or redeem fund shares.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means that the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally pays distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

You will participate in fund distributions when they are declared, starting the next business day after your purchase is effective. For example, if you purchase shares on a day that a distribution is declared, you will not receive that distribution. If you redeem shares, you will receive any distribution declared on the day you redeem. If you redeem all shares, we will include any distributions received with your redemption proceeds.

20 #

Generally, participants in tax-deferred retirement plans reinvest all distributions. For investors investing through taxable accounts, we will reinvest distributions unless you elect to have dividends and/or capital gains sent to another American Century Investments account, to your bank electronically, or to your home address or to another person or address by check.

21 #

Taxes

Some of the tax consequences of owning shares of a fund will vary depending on whether you own them through a taxable or tax-deferred account. Distributions by a fund of dividend and interest income, capital gains and other income it has generated through its investment activities will generally be taxable to shareholders who hold shares in a taxable account. Tax consequences also may result when investors sell fund shares after the net asset value has increased or decreased.

Tax-Deferred Accounts

If you purchase fund shares through a tax-deferred account, such as an IRA or employer-sponsored retirement plan, income and capital gains distributions usually will not be subject to current taxation but will accumulate in your account under the plan on a tax-deferred basis. Likewise, moving from one fund to another fund within a plan or tax-deferred account generally will not cause you to be taxed. For information about the tax consequences of making purchases or withdrawals through a tax-deferred account, please consult your plan administrator, your summary plan description or a tax advisor.

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions

Fund distributions may consist of income, such as dividends and interest earned by a fund from its investments, or capital gains generated by the fund from the sale of investment securities. Distributions of income are taxed as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of the fund, in which case distributions of income are taxed at the same rates as long-term capital gains.



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

The tax character of any distributions from capital gains is determined by how long the fund held the underlying security that was sold, not by how long you have been invested in the fund or whether you reinvest your distributions or take them in cash. Short-term (one year or less) capital gains are taxable as ordinary income. Gains on securities held for more than one year are taxed at the lower rates applicable to long-term capital gains.

If the fund’s distributions exceed current and accumulated earnings and profits, such excess will generally be considered a return of capital. A return of capital distribution is generally not subject to tax, but will reduce your cost basis in the fund and result in higher realized capital gains (or lower realized capital losses) upon the sale of fund shares.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Your redemptions — including exchanges to other American Century Investments funds — are subject to capital gains tax. Short-term capital gains are gains on fund shares you held for 12 months or less. Long-term capital gains are gains on fund shares you held for more than 12 months. If your shares decrease in value, their sale or exchange will result in a long-term or short-term capital loss. However, you should note that loss realized upon the sale or exchange of shares held for six months or less will be treated as a long-term capital loss to the extent of any distribution of long-term capital gain to you with respect to those shares. If a loss is realized on the redemption of fund shares, the reinvestment in additional fund shares within 30 days before or after the redemption may be subject to the wash sale rules of the Internal Revenue Code. This may result in a postponement of the recognition of such loss for federal income tax purposes.

If you have not certified to us that your Social Security number or tax identification number is correct and that you are not subject to withholding, we are required to withhold and pay to the IRS the applicable federal withholding tax rate on taxable dividends, capital gains distributions and redemption proceeds.

Buying a Dividend

Purchasing fund shares in a taxable account shortly before a distribution is sometimes known as buying a dividend. In taxable accounts, you must pay income taxes on the distribution whether you reinvest the distribution or take it in cash. In addition, you will have to pay taxes on the distribution whether the value of your investment decreased, increased or remained the same after you bought the fund shares.

22 #

The risk in buying a dividend is that a fund’s portfolio may build up taxable income and gains throughout the period covered by a distribution, as income is earned and securities are sold at a profit. The fund distributes the income and gains to you, after subtracting any losses, even if you did not own the shares when the income was earned or the gains occurred.

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

23 #

Multiple Class Information

The fund offers multiple classes of shares. The classes have different fees, expenses, eligibility requirements and/or minimum investment requirements. Different fees and expenses will affect performance.

Except as described below, all classes of shares of the fund have identical voting, dividend, liquidation and other rights, preferences, terms and conditions. The only differences among the classes are (a) each class may be subject to different expenses specific to that class; (b) each class has a different identifying designation or name; (c) each class has exclusive voting rights with respect to matters solely affecting such class; (d) each class may have different exchange privileges; and (e) the I Class may provide for conversion from that class into shares of the Investor Class of the same fund.

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class and R Class each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s Web site for more information. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

American Century Investments does not pay any fees to financial intermediaries on R6 Class shares.

24 #

Financial Highlights

Understanding the Financial Highlights

The table on the next page itemizes what contributed to the changes in share price during the most recently ended fiscal year. It also shows the changes in share price for these periods in comparison to changes over the last five fiscal years (or a shorter period if the share class is not five years old).

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

The Financial Highlights that follow have been audited by Deloitte & Touche LLP. Their Report of Independent Registered Public Accounting Firm and the financial statements and financial highlights are included in the fund’s annual report, which is available upon request.

25 #

Adaptive Equity Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Operating Expenses (before expense waiver)	Net Investment Income (Loss)	Net Investment Income (Loss) (before expense waiver)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$9.82	0.07	2.36	2.43	(0.10)	—	(0.10)	$12.15	24.92%	1.16%	1.26%	0.58%	0.48%	85%		$98,585
2016	$10.74	0.10	0.08	0.18	(0.12)	(0.98)	(1.10)	$9.82	2.20%	1.23%	1.25%	1.04%	1.02%	116%		$87,888
2015	$10.15	0.06	0.59	0.65	(0.06)	—	(0.06)	$10.74	6.40%	1.26%	1.26%	0.54%	0.54%	185%		$99,141
2014	$9.08	0.06	1.11	1.17	(0.10)	—	(0.10)	$10.15	12.96%	1.25%	1.25%	0.59%	0.59%	184%		$91,093
2013	$6.90	0.06	2.25	2.31	(0.13)	—	(0.13)	$9.08	34.11%	1.25%	1.25%	0.80%	0.80%	158%		$88,256
I Class ⁽³⁾
2017	$10.05	0.09	2.42	2.51	(0.12)	—	(0.12)	$12.44	25.19%	0.96%	1.06%	0.78%	0.68%	85%		$4,568
2016	$10.96	0.12	0.09	0.21	(0.14)	(0.98)	(1.12)	$10.05	2.47%	1.03%	1.05%	1.24%	1.22%	116%		$2,729
2015	$10.36	0.08	0.60	0.68	(0.08)	—	(0.08)	$10.96	6.58%	1.06%	1.06%	0.74%	0.74%	185%		$2,665
2014	$9.27	0.09	1.11	1.20	(0.11)	—	(0.11)	$10.36	13.13%	1.05%	1.05%	0.79%	0.79%	184%		$2,501
2013	$7.03	0.07	2.31	2.38	(0.14)	—	(0.14)	$9.27	34.41%	1.05%	1.05%	1.00%	1.00%	158%		$317
A Class
2017 ⁽⁴⁾	$10.24	0.03	1.97	2.00	(0.01)	—	(0.01)	$12.23	19.50%	1.41% ⁽⁶⁾	1.51% ⁽⁶⁾	0.26% ⁽⁶⁾	0.16% ⁽⁶⁾	85% ⁽⁷⁾		$30
R Class
2017 ⁽⁴⁾	$10.24	^—(5)	1.97	1.97	^—(5)	—	^—(5)	$12.21	19.28%	1.66% ⁽⁶⁾	1.76% ⁽⁶⁾	(0.01)% ⁽⁶⁾	(0.11)% ⁽⁶⁾	85% ⁽⁷⁾		$61
R6 Class
2017 ⁽⁴⁾	$10.48	0.09	2.02	2.11	(0.01)	—	(0.01)	$12.58	20.17%	0.81% ⁽⁶⁾	0.91% ⁽⁶⁾	0.82% ⁽⁶⁾	0.72% ⁽⁶⁾	85% ⁽⁷⁾		$201

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	December 1, 2016 (commencement of sale) through October 31, 2017.


(5)	Per share amount was less than $0.005.


(6)	Annualized.


(7)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

The availability of certain sales charge waivers and discounts will depend on whether you purchase your shares directly from the fund or through a financial intermediary. Intermediaries may have different policies and procedures regarding the availability of front-end sales load waivers or contingent deferred (back-end) sales load (CDSC) waivers, which are set forth below. In all instances, it is the investor’s responsibility to notify the fund or the applicable financial intermediary at the time of purchase of any relationship or other facts qualifying the investor for sales charge waivers or discounts. For waivers and discounts not available through a particular intermediary, shareholders will have to purchase fund shares directly from the fund or through another intermediary to receive these waivers or discounts.

Sales Charge Reductions and Waivers Available through Merrill Lynch

Effective April 10, 2017, shareholders purchasing fund shares through a Merrill Lynch platform or account will be eligible only for the following load waivers (front-end sales charge waivers and contingent deferred, or back-end, sales charge waivers) and discounts, which may differ from those disclosed elsewhere in this fund’s prospectus or SAI.

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds, provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Notes

Where to Find More Information

Annual and Semiannual Reports

Additional information about the fund’s investments is available in the fund’s annual and semiannual reports to shareholders. In the fund’s annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the fund’s performance during its last fiscal year. This prospectus incorporates by reference the Report of Independent Registered Public Accounting Firm and the financial statements included in the fund’s annual report to shareholders, dated October 31, 2017.

Statement of Additional Information (SAI)

The SAI contains a more detailed legal description of the fund’s operations, investment restrictions, policies and practices. The SAI is incorporated by reference into this prospectus. This means that it is legally part of this prospectus, even if you don’t request a copy.

You may obtain a free copy of the SAI, annual reports and semiannual reports, and you may ask questions about the fund or your accounts, online at americancentury.com, by contacting American Century Investments at the addresses or telephone numbers listed below or by contacting your financial intermediary.

The Securities and Exchange Commission (SEC)

Information about the fund (including the SAI) can be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C., and information on the operation of the Public Reference Room may be obtained by calling the SEC at 1-202-551-8090. Reports and other information about the fund are available on the EDGAR database on the SEC’s website at sec.gov, and copies of this information may be obtained, after paying a duplicating fee, by electronic request at the following email address: publicinfo@sec.gov, or by writing the SEC’s Public Reference Section, Washington, D.C. 20549-1520.

This prospectus shall not constitute an offer to sell securities of the fund in any state, territory, or other jurisdiction where the fund’s shares have not been registered or qualified for sale, unless such registration or qualification is not required, or under any circumstances in which such offer or solicitation would be unlawful.



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91101 1803

March 1, 2018

American Century Investments

Prospectus

All Cap Growth Fund

Investor Class (TWGTX)

I Class (ACAJX)

A Class (ACAQX)

C Class (ACAHX)

R Class (ACAWX)



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	4
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
How to Invest in the All Cap Growth Fund Through an Existing Giftrust	21
Share Price and Distributions	22
Taxes	24
Multiple Class Information	26
Financial Highlights	27
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	A	C	R
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	5.75%	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None²	1.00%	None
Maximum Annual Account Maintenance Fee (waived for unmatured Giftrust accounts or if eligible investments total at least $10,000)	$25	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	A	C	R
Management Fee	1.00%	0.80%	1.00%	1.00%	1.00%
Distribution and Service (12b-1) Fees	None	None	0.25%	1.00%	0.50%
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.01%	0.81%	1.26%	2.01%	1.51%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor or I Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$103	$322	$559	$1,236
I Class	$83	$259	$450	$1,002
A Class	$696	$952	$1,228	$2,010
C Class	$204	$632	$1,084	$2,334
R Class	$154	$478	$824	$1,800

Portfolio Turnover

2 #

Principal Investment Strategies

The portfolio managers look for stocks of companies of all sizes they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. The portfolio managers use a variety of analytical research tools and techniques to identify companies that meet their investment criteria. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection.

Principal Risks


•	Growth Stocks — Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.

•

Small and Mid Cap Stocks — The fund invests in mid-sized and smaller companies, which may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.


•	Style Risk — If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Foreign Securities — The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk — Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.


•	Price Volatility — The value of the fund’s shares may fluctuate significantly in the short term.


•	Market Risk — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

3 #

Calendar Year Total Returns

Highest Performance Quarter ( 1Q 2012 ): 18.71% Lowest Performance Quarter ( 4Q 2008 ): -26.56%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	24.87%	14.13%	6.76%	—	11/25/1983
Return After Taxes on Distributions	22.57%	11.48%	5.36%	—	11/25/1983
Return After Taxes on Distributions and Sale of Fund Shares	15.98%	10.85%	5.22%	—	11/25/1983
I Class Return Before Taxes	25.14%	14.36%	—	15.32%	09/30/2011
A Class ¹ Return Before Taxes	17.42%	12.51%	5.87%	—	09/30/2011
C Class ¹ Return Before Taxes	23.63%	12.99%	5.70%	—	09/30/2011
R Class ¹ Return Before Taxes	24.24%	13.57%	6.23%	—	09/30/2011
Russell 3000 ^® Growth Index (reflects no deduction for fees, expenses or taxes)	29.59%	17.15%	9.93%	—	—


¹	Historical performance for A, C and R Classes prior to their inception is based on the performance of Investor Class shares. A, C and R Class performance has been adjusted to reflect differences in sales charges, if applicable, and expenses between classes.

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Gregory J. Woodhams , CFA, Co-CIO, Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2018.

Joseph Reiland , CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2018.

4 #

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

The minimum initial investment amount for I Class is generally $5 million ($3 million for endowments and foundations), but the minimum may be waived if you have an aggregate investment in the American Century family of funds of $10 million or more ($5 million for endowments and foundations). This includes accounts held directly with American Century and those held through a financial intermediary.

For Investor, A, C and R Classes, there is no minimum initial investment amount for certain employer-sponsored retirement plans, however, financial intermediaries or plan recordkeepers may require plans to meet different minimums. For purposes of fund minimums, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Employer-sponsored retirement plans are not eligible to invest in the I Class.

There is a $50 minimum for subsequent purchases, except there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Purchase and Sale of Fund Shares Through a Giftrust ^®

As of June 21, 2017, no new Giftrusts may be opened. However, additional shares may be purchased for Giftrusts established prior to August 1, 2002, by check or by wire.

Once a Giftrust matures, the shares are transferred out of the Giftrust and into a new account registered in the beneficiary’s individual name. The beneficiary may purchase additional shares or redeem shares in the new account as indicated above in the Purchase and Sale of Fund Shares section.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

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Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers look for stocks of companies of all sizes they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers use a bottom-up approach to stock selection. This means that the managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts.

The fund may write covered calls on a portion of the fund’s holdings in common stock when the portfolio managers believe call premiums are attractive relative to the price of the underlying security. A fund writing a covered call option is obligated to sell or deliver the underlying security, which the fund holds in its portfolio, in return for the strike price upon exercise of the option.

The portfolio managers do not attempt to time the market. Instead, under normal market conditions, they intend to keep the fund essentially fully invested in stocks regardless of the movement of stock prices generally.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Growth stocks are typically priced higher than other stocks, in relation to earnings and other measures, because investors believe they have more growth potential. This potential may or may not be realized. If the portfolio managers’ assessment of a company’s prospects for earnings growth or how other investors will value the company’s earnings growth is incorrect, the price of the stock may fail to reach the value the portfolio managers have placed on it. Growth stock prices tend to fluctuate more dramatically than the overall stock markets.

The fund invests in medium-sized and smaller companies, which may be more volatile and subject to greater short-term risk. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies. In addition, smaller companies may have less publicly available information.

Market performance tends to be cyclical, and, in the various cycles, certain investment styles may fall in and out of favor. If the market is not favoring the growth style used by the fund, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.

Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies. Foreign investment involves additional risks, including fluctuations in currency exchange rates, less stable political and economic structures, reduced availability of public information, and lack of uniform financial reporting and regulatory practices similar to those that apply in the United States. These factors make investing in foreign securities generally riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent the fund invests in foreign securities, the overall risk of the fund could be affected.

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

The portfolio managers may buy a large amount of a company’s stock quickly, and often will dispose of it quickly if the company’s earnings or revenues decline. While the managers believe this strategy provides substantial appreciation potential over the long term, in the short term it can create a significant amount of share price volatility. This volatility can be greater than that of the average stock fund.

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The value of the fund’s shares depends on the value of the stocks and other securities it owns. The value of the individual securities the fund owns will go up and down depending on the performance of the companies that issued them, general market and economic conditions, and investor confidence.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

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Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

The advisor is responsible for managing the investment portfolios of the fund and directing the purchase and sale of its investment securities. The advisor also arranges for transfer agency, custody and all other services necessary for the fund to operate.

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. The advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	A Class	C Class	R Class
All Cap Growth	1.00%	0.80%	1.00%	1.00%	1.00%

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Gregory J. Woodhams

Mr. Woodhams, Co-CIO, Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2018. He joined American Century Investments in 1997 and became a portfolio manager in 1998. He has a bachelor’s degree in economics from Rice University and an M.A. in economics from the University of Wisconsin. He is a CFA charterholder.

Joseph Reiland

Mr. Reiland, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2018. He joined American Century Investments in 2000 as an investment analyst and became a portfolio manager in 2005. He has a bachelor’s degree in business administration from Washington University. He is a CFA charterholder.

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Fundamental Investment Policies

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Investing Directly with American Century Investments*

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

*Please see page 21 for How to Invest in the All Cap Growth Fund Through an Existing Giftrust .

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Ways to Manage Your Account (including matured Giftrust accounts)

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares*: Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares : You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

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Investing Through a Financial Intermediary

The funds may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Although each class of a fund’s shares represents an interest in the same fund, each has a different cost structure, as described below. Which class is right for you depends on many factors, including how long you plan to hold the shares, how much you plan to invest, the fee structure of each class, and how you wish to compensate your financial professional for the services provided to you. Your financial professional can help you choose the option that is most appropriate.

Investor Class

I Class

A Class

C Class

C Class shares are available for purchase through broker-dealers and other financial intermediaries. These shares do not have an initial sales charge but carry an ongoing distribution and service (12b-1) fee. Except as noted below, the commission paid to your financial professional for purchases of C Class shares is 1.00% of the amount invested, and the shares have a contingent deferred sales charge (CDSC) when redeemed within one year of purchase. Your financial professional does not receive the distribution and service (12b-1) fee until the CDSC period has expired (it is retained by the distributor). See CDSC Waivers below for a full description of the waivers that may be available.

R Class

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

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A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

Waivers for Certain Investors . The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor

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•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

C Class

C Class shares are sold at their net asset value without an initial sales charge. If you purchase shares through a financial intermediary who receives a commission from the fund’s distributor on the purchase and redeem your shares within 12 months of purchase, you will pay a CDSC of 1.00% of the original purchase price or the current market value at redemption, whichever is less. The purpose of the CDSC is to permit the fund’s distributor to recoup all or a portion of the up-front payment made to your financial professional. There is no CDSC on shares acquired through reinvestment of dividends or capital gains.

American Century Investments generally limits purchases of C Class shares to investors whose aggregate investments in American Century Investments funds are less than $1,000,000. However, it is your responsibility to inform your financial intermediary and/or American Century Investments at the time of purchase of any accounts to be aggregated, including investments in any share class of any American Century Investments fund (excluding certain assets in money market accounts, but including account assets invested in Qualified Tuition Programs under Section 529) in accounts held by you and your immediate family members (which includes your spouse or domestic partner and children, step-children, parents or step-parents of you, your spouse or domestic partner). Once you reach this limit, you should work with your financial intermediary to determine what share class is most appropriate for additional purchases.

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for the A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value for A and C Class shares


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½ for A Class shares and for C Class shares


•	required minimum distributions from retirement accounts upon reaching age 70½


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

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Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C and R Class shares. Employer-sponsored retirement plans are not eligible to purchase I Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century Investments does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Moving Between Share Classes and Accounts

Buying and Selling Shares through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

In addition, your financial intermediary may charge a transaction fee for the purchase or sale of fund shares. Those charges are retained by the financial intermediary and are not shared with American Century Investments or the fund. Please contact your financial intermediary or plan sponsor for a complete description of its policies. Copies of the funds’ annual report, semiannual report and statement of additional information are available from your financial intermediary or plan sponsor.

The funds have authorized certain financial intermediaries to accept orders on the funds’ behalf. American Century Investments has selling agreements with these financial intermediaries requiring them to track the time investment orders are received and to comply with procedures relating to the transmission of orders. Orders must be received by the financial intermediary on the funds’ behalf before the time the net asset value is determined in order to receive that day’s share price. If those orders are transmitted to American

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Century Investments and paid for in accordance with the selling agreement, they will be priced at the net asset value next determined after your request is received in the form required by the financial intermediary.

See Additional Policies Affecting Your Investment for more information about investing with us.

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Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares

The funds’ Investor Class shares are available for purchase directly from American Century Investments and through the following types of products, programs or accounts offered by financial intermediaries:


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

The funds reserve the right, when in the judgment of American Century Investments it is not adverse to the funds’ interest, to permit all or only certain types of investors to open new accounts in the funds, to impose further restrictions, or to close the funds to any additional investments, all without notice.

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

Minimum Initial Investment Amounts for I Class

The minimum initial investment amount is generally $5 million ($3 million for endowments and foundations) per fund. If you invest with us through a financial intermediary, this requirement may be met if your financial intermediary aggregates your investments with those of other clients into a single group, or omnibus, account that meets the minimum. The minimum investment requirement may be waived if you have an aggregate investment in our family of funds of $10 million or more ($5 million for endowments and foundations). This includes accounts held directly with American Century and those held through a financial intermediary. American Century Investments also may waive the minimum initial investment in other situations it deems appropriate.

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Redemptions

Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order. If you sell C, or in certain cases, A Class shares, you may pay a sales charge depending on how long you have held your shares, as described above.

Generally, we expect to remit your redemption proceeds to you one business day after we process your transaction. However, we reserve the right to delay delivery of redemption proceeds for up to seven days. For example, each time you make an investment with American Century Investments, there is a seven-day holding period before we will release redemption proceeds from those shares, unless you provide us with satisfactory proof that your purchase funds have cleared. For funds with CheckWriting privileges, we will not honor checks written against shares subject to this seven-day holding period. Investments by wire generally require only a one-day holding period. If you change your address, we may require that any redemption request made within seven days be submitted in

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writing and be signed by all authorized signers with their signatures guaranteed. We may also require a signature guarantee for redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Giftrust Redemptions

Shares in a Giftrust account ordinarily may not be redeemed until the Giftrust matures. Currently, the minimum term of a Giftrust is 18 years and the maximum term is 65 years. By the terms of the trust, a gift is irrevocable and will be held in trust until its term expires. However, Missouri law makes it possible to terminate a Giftrust early under certain circumstances with the consent of the grantor and all beneficiaries. This requires a completed Giftrust Early Termination Form, which is available online at americancentury.com or by calling a Service Representative at 1-800-345-2021. Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance* falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

*(excludes shares held through an unmatured Giftrust)

Small Distributions and Uncashed Distribution Checks

Signature Guarantees

A signature guarantee—which is different from a notarized signature—is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;

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•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase, or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

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American Century Investments monitors aggregate trades placed in omnibus accounts and works with financial intermediaries to identify shareholders engaging in abusive trading practices and impose restrictions to discourage such practices. Because American Century Investments relies on financial intermediaries to provide information and impose restrictions, our ability to monitor and discourage abusive trading practices in omnibus accounts may be dependent on the intermediaries’ timely performance of such duties and restrictions may not be applied uniformly in all cases.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

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How to Invest in the All Cap Growth Fund Through an Existing Giftrust

Prior to June 21, 2017, All Cap Growth shares could be purchased to establish a Giftrust, which was a product created by American Century as a way to invest in the fund for someone other than yourself through a one-time gift held in an irrevocable trust. As of June 21, 2017, no new Giftrusts may be opened. However, additional shares may be purchased for Giftrusts established prior to August 1, 2002. Investor Class shares are the only option available for purchase through a Giftrust. You must conduct business in writing on a Giftrust unless you establish telephone services. Please remember that the person establishing a Giftrust gives up the right to redeem or exchange shares. If you choose to do business in writing only, you must provide written instructions to make additional gifts into the Giftrust. If you want to add services later, you can complete an Investor Service Options form.

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Automated Information Line: 1-800-345-8765, 24 hours a day, seven days a week

Make additional gifts*: Call if you have authorized us to invest from your bank account. Additional gifts must be at least $50.

BY WIRE

Make additional gifts*: Give your bank the following information:



•	Our bank information:
		Commerce Bank N.A.
		Routing No. 101000019
		ACMF Account No. 2804918
•	All Cap Growth Fund via Giftrust
•	The Giftrust account number
•	Giftrust beneficiary’s name
•	Dollar amount

*No additional gifts can be made into Giftrusts opened on or after August 1, 2002.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open a Giftrust: Send a signed and completed application and check or money order payable to American Century Investments.

Transfer shares: Send written instructions to transfer your shares from another American Century Investments account into a previously established Giftrust account.

Make additional gifts*: Send your check or money order for at least $50 with an investment slip or $250 without an investment slip. If you don’t have an investment slip, include the name, address and account number to be credited on your check or money order.

AUTOMATICALLY

Make additional gifts*: Use the form available on our website at americancentury.com to make automatic gifts on a regular basis. You must invest at least $600 per year per Giftrust.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you make additional investments. *


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday - Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday - Friday

*No additional gifts can be made into Giftrusts opened on or after August 1, 2002.

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Share Price and Distributions

Share Price

American Century Investments will price the fund shares you purchase, exchange or redeem based on the net asset value (NAV) next determined after your order is received in good order by the fund’s transfer agent, or other financial intermediary with the authority to accept orders on the fund’s behalf. We determine the NAV of each fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets, attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

22 #

23 #

Taxes*

Some of the tax consequences of owning shares of the fund will vary depending on whether you own them through a taxable or tax-deferred account. Distributions by a fund of dividend and interest income, capital gains and other income it has generated through its investment activities will generally be taxable to shareholders who hold shares in a taxable account. Tax consequences also may result when investors sell fund shares after the net asset value has increased or decreased.

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions

Fund distributions may consist of income, such as dividends and interest earned by a fund from its investments, or capital gains generated by a fund from the sale of investment securities. Distributions of income are taxed as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of the fund, in which case distributions of income are taxed at the same rates as long-term capital gains.



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

*For a discussion of tax issues related to investing through a Giftrust, please see page 25.

Taxes on Transactions

Buying a Dividend

24 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

Taxes — Giftrust

The following is only a summary of the tax law effects of investing through a Giftrust. The tax laws applicable to trusts in general are quite complex. You should consider consulting your tax advisor or attorney before making an investment through a Giftrust. Distributions by the fund will impact the amount of taxes paid by a Giftrust. Distributions may consist of dividend and interest income the fund receives on its investments or capital gains it generates as a result of the sale of its securities.

Taxability of Distributions

Fund distributions may consist of income, such as dividends and interest earned by a fund from its investments, or capital gains generated by a fund from the sale of investment securities. Distributions of income are taxed as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of a fund, in which case distributions of income are taxed at the same rates as long-term capital gains.



	Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. No federal income tax is due from a Giftrust unless its income exceeds approximately $100 in a year. Distributions also may be subject to state and local taxes. The trustee files all state and federal tax returns and pays the taxes by redeeming the appropriate number of shares from the trust. A $10 fee is charged to a Giftrust for each year a tax return is filed. This fee also is paid by redeeming shares from the Giftrust.

Taxes on Transactions

Redemptions by beneficiaries once a Giftrust has matured or been terminated early— including exchanges to other American Century Investments funds — are subject to capital gains tax. Based on current tax law, which is subject to change, gains or losses would be treated as either short-term or long-term capital gains or losses.

Gift Taxes

Making a contribution to a Giftrust is considered a gift of a future interest under the federal tax code. That means the gift does not qualify for the annual gift tax exclusion. For Giftrusts established before August 1, 2002, if the grantor makes additional gifts in subsequent years, a United States Gift Tax Return (Form 709) must be filed for each year’s gift(s). No gift tax is payable until your cumulative lifetime gifts exceed the exemption. Each gift reduces the exemption equivalent that would otherwise be available in the future.

25 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. Each class, except the Investor Class and I Class, offered by this prospectus has a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% for C Class and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structur e in the statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

26 #

Financial Highlights

Understanding the Financial Highlights

The table on the next few pages itemizes what contributed to the changes in share price during the most recently ended fiscal period. It also shows the changes in share price for this period in comparison to changes over the last five fiscal years.

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

27 #

All Cap Growth Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$30.56	(0.01)	6.41	6.40	—	(2.45)	(2.45)	$34.51	22.43%	1.01%	(0.03)%	44%		$1,081,686
2016	$32.53	(0.03)	0.08	0.05	—	(2.02)	(2.02)	$30.56	0.24%	1.00%	(0.09)%	49%		$971,588
2015	$34.71	(0.05)	2.71	2.66	—	(4.84)	(4.84)	$32.53	9.40%	1.00%	(0.15)%	43%		$1,082,419
2014	$35.63	(0.06)	3.64	3.58	—	(4.50)	(4.50)	$34.71	11.50%	1.00%	(0.18)%	56%		$1,079,950
2013	$30.44	0.12	7.22	7.34	(0.10)	(2.05)	(2.15)	$35.63	25.72%	1.00%	0.38%	60%		$1,081,599
I Class ⁽³⁾
2017	$30.92	0.02	6.52	6.54	—	(2.45)	(2.45)	$35.01	22.64%	0.81%	0.17%	44%		$1,964
2016	$32.83	0.03	0.08	0.11	—	(2.02)	(2.02)	$30.92	0.46%	0.80%	0.11%	49%		$318
2015	$34.92	0.01	2.74	2.75	—	(4.84)	(4.84)	$32.83	9.60%	0.80%	0.05%	43%		$280
2014	$35.76	— ⁽⁴⁾	3.66	3.66	—	(4.50)	(4.50)	$34.92	11.71%	0.80%	0.02%	56%		$191
2013	$30.50	0.16	7.26	7.42	(0.11)	(2.05)	(2.16)	$35.76	25.98%	0.80%	0.58%	60%		$110
A Class
2017	$30.10	(0.09)	6.30	6.21	—	(2.45)	(2.45)	$33.86	22.12%	1.26%	(0.28)%	44%		$10,185
2016	$32.15	(0.10)	0.07	(0.03)	—	(2.02)	(2.02)	$30.10	(0.02)%	1.25%	(0.34)%	49%		$10,743
2015	$34.44	(0.13)	2.68	2.55	—	(4.84)	(4.84)	$32.15	9.12%	1.25%	(0.40)%	43%		$10,657
2014	$35.47	(0.14)	3.61	3.47	—	(4.50)	(4.50)	$34.44	11.22%	1.25%	(0.43)%	56%		$8,837
2013	$30.36	0.04	7.19	7.23	(0.07)	(2.05)	(2.12)	$35.47	25.42%	1.25%	0.13%	60%		$8,517
C Class
2017	$28.75	(0.30)	5.97	5.67	—	(2.45)	(2.45)	$31.97	21.21%	2.01%	(1.03)%	44%		$4,461
2016	$31.02	(0.31)	0.06	(0.25)	—	(2.02)	(2.02)	$28.75	(0.77)%	2.00%	(1.09)%	49%		$4,324
2015	$33.62	(0.35)	2.59	2.24	—	(4.84)	(4.84)	$31.02	8.32%	2.00%	(1.15)%	43%		$4,656
2014	$34.96	(0.38)	3.54	3.16	—	(4.50)	(4.50)	$33.62	10.40%	2.00%	(1.18)%	56%		$3,932
2013	$30.11	(0.20)	7.11	6.91	(0.01)	(2.05)	(2.06)	$34.96	24.45%	2.00%	(0.62)%	60%		$3,321
R Class
2017	$29.65	(0.16)	6.18	6.02	—	(2.45)	(2.45)	$33.22	21.79%	1.51%	(0.53)%	44%		$15,271
2016	$31.77	(0.18)	0.08	(0.10)	—	(2.02)	(2.02)	$29.65	(0.25)%	1.50%	(0.59)%	49%		$13,809
2015	$34.16	(0.20)	2.65	2.45	—	(4.84)	(4.84)	$31.77	8.87%	1.50%	(0.65)%	43%		$13,544
2014	$35.30	(0.22)	3.58	3.36	—	(4.50)	(4.50)	$34.16	10.93%	1.50%	(0.68)%	56%		$9,743
2013	$30.27	(0.09)	7.22	7.13	(0.05)	(2.05)	(2.10)	$35.30	25.12%	1.50%	(0.12)%	60%		$5,828

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	Per-share amount was less than $0.005.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds, provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Notes

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com

Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91102 1803

March 1, 2018

American Century Investments

Prospectus

Balanced Fund

Investor Class ( TWBIX )

I Class ( ABINX )

R5 Class ( ABGNX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	2
Principal Risks	3
Fund Performance	4
Portfolio Management	5
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	9
Investing Directly with American Century Investments	11
Investing Through a Financial Intermediary	13
Additional Policies Affecting Your Investment	15
Share Price and Distributions	19
Taxes	21
Multiple Class Information	23
Financial Highlights	24

Fund Summary

Investment Objective

The fund seeks long-term capital growth and current income by investing approximately 60% of its assets in equity securities and the remainder in bonds and other fixed-income securities.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	R5
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	R5
Management Fee	0.90%	0.70%	0.70%
Distribution and Service (12b-1) Fees	None	None	None
Other Expenses	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	0.91%	0.71%	0.71%

¹ Prior to April 10, 2017, this class was referred to as the Institutional Class.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor or I Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$93	$291	$504	$1,120
I Class	$73	$227	$396	$883
R5 Class	$73	$227	$396	$883

Portfolio Turnover

Principal Investment Strategies

For the equity portion of the fund, the portfolio managers select stocks using quantitative management techniques in a two-step process. First, the managers rank stocks, primarily those of large (those with a market cap greater than $2 billion), publicly-traded U.S. companies from most attractive to least attractive based on an objective set of measures, including valuation, quality, growth and sentiment. Second, the portfolio managers use a quantitative model to build a portfolio of stocks from the ranking described above that they believe will provide the optimal balance between risk and expected return. The portfolio managers generally sell a stock when they believe it has become less attractive relative to other opportunities, its risk characteristics outweigh its return opportunity or specific events alter its prospects.

For the fixed-income portion of the fund, the portfolio managers invest in a diversified portfolio of high- and medium-grade non-money market debt securities. These securities, which may be payable in U.S. or foreign currencies, may include corporate bonds and notes, government securities, bank loans, securities backed by mortgages or other assets and collateralized debt obligations (including collateralized loan obligations). Shorter-term debt securities round out the portfolio.

2 #

Principal Risks


•	Style Risk — If at any time the market is not favoring the quantitative investment style used to manage the fund’s equity portion, that portion’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.

•

Investment Process Risk — Stocks selected by the portfolio managers using quantitative models may perform differently than expected due to the portfolio managers’ judgments regarding the factors used in the models, the weight placed on each factor, changes from the factors’ historical trends, and technical issues with the construction and implementation of the models (including, for example, data problems and/or software or other implementation issues). There is no guarantee that the use of the quantitative models will result in effective investment decisions for the fund. Additionally, the commonality of portfolio holdings across quantitative investment managers may amplify losses.


•	Benchmark Correlation — The performance of the fund’s equity portion will be similar to the performance of the S&P 500 Index. If the S&P 500 goes down, it is likely that the fund’s performance will go down.


•	Market Risk — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.

•

Interest Rate Risk — Investments in debt securities are sensitive to interest rate changes. Generally, the value of debt securities and the funds that hold them decline as interest rates rise. The fund’s fixed-income investments are designed to reduce this risk. Interest rate risk, however, is generally higher for the fixed-income portion of Balanced than for funds that have shorter-weighted maturities, such as money market funds and short-term bond funds. A period of rising interest rates may negatively affect the fund’s performance.

•

Credit Risk — Debt securities, even investment-grade debt securities, are subject to credit risk. Credit risk is the risk that the inability or perceived inability of the issuer to make interest and principal payments will cause the value of the securities to decrease. As a result the fund’s share price could also decrease. Changes in the credit rating of a debt security held by the fund could have a similar effect.


•	Prepayment Risk — The fund may invest in debt securities backed by mortgages or other assets. If these underlying assets are prepaid, the fund may benefit less from declining interest rates than funds of similar maturity that invest less heavily in mortgage- and asset-backed securities.


•	Foreign Securities Risk — Foreign securities have certain unique risks, such as currency risk, social, political and economic risk, and foreign market and trading risk. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.

•

Bank Loan Risk — The market for bank loans may not be highly liquid and the fund may have difficulty selling them. In connection with purchasing loan participations, the fund generally will have no right to enforce compliance by borrowers with loan terms nor any set off rights, and the fund may not benefit directly from any posted collateral. As a result, the fund may be subject to the credit risk of both the borrower and the lender selling the participation. Bank loan transactions may take more than seven days to settle, meaning that proceeds would be unavailable to make additional investments or meet redemptions.

•

Collateralized Debt Obligations/Collateralized Loan Obligation Risk — Collateralized debt obligations and collateralized loan obligations (CLOs) are subject to credit, interest rate, valuation, and prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of CLOs may be affected by, among other things, changes in the market value of the underlying assets held by the CLO, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, prices and interest rate of underlying assets.


•	Derivative Risk — The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional instruments. Derivatives are subject to a number of risks, including liquidity, interest rate, market, credit and correlation risk.

•

Liquidity Risk — The fund may also be subject to liquidity risk. During periods of market turbulence or unusually low trading activity, in order to meet redemptions it may be necessary for the fund to sell securities at prices that could have an adverse effect on the fund’s share price. Changing regulatory and market conditions, including increases in interest rates and credit spreads may adversely affect the liquidity of the fund’s investments.


•	Price Volatility — The value of the fund’s shares may fluctuate significantly in the short term.


•	Principal Loss — At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

3 #

Fund Performance

The blended index is considered the benchmark for the fund . It combines two widely known indices in proportion to the asset mix of the fund. Accordingly, 60% of the index is represented by the S&P 500 Index, which reflects the approximately 60% of the fund’s assets invested in stocks. The blended index’s remaining 40% is represented by the Bloomberg Barclays U.S. Aggregate Bond Index, which reflects the roughly 40% of the fund’s assets invested in fixed-income securities.

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

Calendar Year Total Returns

Highest Performance Quarter ( 3Q 2009 ): 10.38% Lowest Performance Quarter ( 4Q 2008 ): -12.18%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years
Investor Class Return Before Taxes	14.05%	8.85%	6.40%
Return After Taxes on Distributions	12.12%	6.88%	5.13%
Return After Taxes on Distributions and Sale of Fund Shares	8.84%	6.44%	4.80%
I Class Return Before Taxes	14.27%	9.06%	6.61%
R5 Class ¹ Return Before Taxes	14.26%	9.06%	6.61%
S&P 500 ^® Index (reflects no deduction for fees, expenses or taxes)	21.83%	15.78%	8.49%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	3.54%	2.10%	4.00%
Blended Index (reflects no deduction for fees, expenses or taxes)	14.21%	10.25%	6.98%

¹ Historical performance for the R5 Class prior to its inception (April 10, 2017) is based on the performance of I Class shares, which have the same expenses as the R5 Class.

4 #

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Claudia Musat , Vice President, Portfolio Manager and Quantitative Analyst, has been a member of the team that manages the fund since 2010.

Steven Rossi , CFA, Portfolio Manager, has been a member of the team that manages the fund since 2016.

G. David MacEwen , Co-Chief Investment Officer and Senior Vice President, has served on teams managing fixed-income investments for American Century since joining the advisor in 1991.

Robert V. Gahagan , Senior Vice President and Senior Portfolio Manager, has served on teams managing fixed-income investments for American Century since joining the advisor in 1983.

Brian Howell , Vice President and Senior Portfolio Manager, has served on teams managing fixed-income investments for American Century since joining the advisor in 1987.

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor Class, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

The minimum initial investment amount for the I Class is generally $5 million ($3 million for endowments and foundations), but the minimum may be waived if you have an aggregate investment in the American Century family of funds of $10 million or more ($5 million for endowment and foundations). This includes accounts held directly with American Century and those held through a financial intermediary.

There is no minimum initial investment amount for R5 Class shares.

For the Investor and R5 Classes, there is no minimum initial investment amount for certain employer-sponsored retirement plans, however, financial intermediaries or plan recordkeepers may require plans to meet different minimums. For purposes of fund minimums, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Employer-sponsored retirement plans are not eligible to invest in I Class.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

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Objectives, Strategies and Risks

What is the fund’s investment objective?

This fund seeks long-term capital growth and current income by investing approximately 60% of its assets in equity securities and the remainder in bonds and other fixed-income securities.

What are the fund’s principal investment strategies?

For the equity portion of the fund’s portfolio, the fund invests primarily in publicly traded, U.S. companies that have a market capitalization greater than $2 billion.

To select stocks for purchase, the portfolio managers use quantitative management techniques in a two-step process. In the first step, the portfolio managers rank stocks from most attractive to least attractive by using a quantitative model that combines measures that the advisor believes are predictive of an individual stock’s performance. These measures can generally be classified into four major categories: valuation, quality, growth, and sentiment. To measure valuation, the managers may use ratios which look at a firm’s value relative to cash flow, among others. To measure quality, the managers may use factors such as profitability and earnings sustainability, among others. To measure growth, the managers may use the rate of growth of a company’s earnings, as well as other factors. To measure sentiment, the managers may use factors such as historical stock returns, share volume and options data, among others. The information used to generate these measures is typically contained in each stock’s financial statement data and market information, but may include other sources.

In the second step, the managers use a technique called portfolio optimization. In portfolio optimization, the managers use a quantitative model to build a portfolio of stocks from the ranking described above that they believe will provide the optimal balance between risk and expected return. The goal is to create an equity portfolio that provides better returns than the S&P 500 ^® Index without taking on significant additional risk. The portfolio managers do not consider dividend yield when building the equity portion of the fund’s portfolio.

The portfolio managers generally sell stocks from the fund’s equity portfolio when they believe:


•	a stock becomes less attractive relative to other stock opportunities;


•	a stock’s risk characteristics outweigh its return opportunity; or


•	specific events alter a stock’s prospects.

The fixed-income portion of the fund’s portfolio is invested primarily in a diversified portfolio of high- and medium-grade non-money market debt securities. These securities, which may be payable in U.S. or foreign currencies, may include corporate bonds and notes, government securities, bank loans, securities backed by mortgages or other assets and collateralized debt obligations (including collateralized loan obligations). Shorter-term debt securities round out the portfolio. Most of the fixed-income assets will be invested in securities that are rated within the four highest categories by a nationally recognized statistical rating organization. Up to 15% may be invested in securities rated in the fifth category. The rating category of a security will be determined at the time of purchase. In the event a security is subsequently downgraded, the fund will not be obligated to dispose of that security, but may continue to hold the security if deemed appropriate by the portfolio managers. Under normal market conditions, the weighted average maturity for the fixed-income portfolio will be three and one-half years or longer.



	Weighted average maturity is a tool the portfolio managers use to approximate the remaining term to maturity of a fund’s investment portfolio. Generally, the longer a fund’s weighted average maturity, the more sensitive it is to changes in interest rates.

The portfolio managers do not attempt to time the market. Instead, under normal market conditions, they intend to keep the equity portion of the fund mostly invested in equity securities regardless of the movement of stock prices generally.

In the event of exceptional market or economic conditions, the fixed-income portion of the fund may take temporary defensive positions that are inconsistent with the fund’s principal investment strategies. To the extent the fixed-income portion of the fund assumes a defensive position, it may not achieve its investment objective.

The fixed-income portfolio managers decide which debt securities to buy and sell by, among other things:


•	identifying debt securities that satisfy the fund’s credit quality standards;


•	determining which debt securities help the fund meet its maturity requirements;


•	assessing current and anticipated interest rates;


•	evaluating current economic conditions and the risk of inflation; and


•	evaluating special features of the debt securities that may make them more or less attractive to alternatives.

The fund may invest in securities issued or guaranteed by the U.S. Treasury and certain U.S. government agencies or instrumentalities such as the Government National Mortgage Association (Ginnie Mae). Ginnie Mae is supported by the full faith and credit of the U.S. government. Securities issued or guaranteed by other U.S. government agencies or instrumentalities, such as the Federal National

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Mortgage Association (Fannie Mae), the Federal Home Loan Mortgage Corporation (Freddie Mac), and the Federal Home Loan Bank (FHLB) are not guaranteed by the U.S. Treasury or supported by the full faith and credit of the U.S. government. However, they are authorized to borrow from the U.S. Treasury to meet their obligations.

The fund also may invest in derivative instruments such as options, futures contracts, options on futures contracts, and swap agreements (including, but not limited to, credit default swap agreements), or in mortgage- or asset-backed securities, provided that such investments are in keeping with the fund’s investment objective.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Market performance tends to be cyclical, and, in the various cycles, certain investment styles may fall in and out of favor. If the market is not favoring the quantitative style used by the fund’s equity portion, that portion’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.

Stocks selected by the portfolio managers using quantitative models may perform differently than expected due to the portfolio managers’ judgments regarding the factors used in the models, the weight placed on each factor, changes from the factors’ historical trends, and technical issues with the construction and implementation of the models (including, for example, data problems and/or software or other implementation issues). There is no guarantee that the use of the quantitative models will result in effective investment decisions for the fund. Additionally, the commonality of portfolio holdings across quantitative investment managers may amplify losses.

Because the equity portion of the fund uses quantitative management techniques to try to achieve a total return that exceeds the total return of the S&P 500 ^® Index, its performance will correlate to the index’s performance. If the index goes down, it is likely that the performance of the fund’s equity portion will go down.

The value of the fund’s shares depends on the value of the stocks, bonds and other securities it owns.


•	The value of the individual equity securities the fund owns will go up and down depending on the performance of the companies that issued them, general market and economic conditions, and investor confidence.


•	The value of the fund’s fixed-income securities will be affected primarily by rising or falling interest rates and the continued ability of the issuers of these securities to make payments of interest and principal as they become due.

When interest rates change, the fund’s share value will be affected. Generally, when interest rates rise, the value of the fund’s fixed-income securities will decline. The opposite is true when interest rates decline. The degree to which interest rate changes affect the fund’s performance varies and is related to the weighted average maturity of the fixed-income portion of the fund. For example, when interest rates rise, you can expect the share value of a long-term bond fund to fall more than a short-term bond fund. When rates fall, the opposite is true. The fund’s fixed-income investments are designed to reduce this risk. Interest rate risk, however, is generally higher for the fixed-income portion of Balanced than for funds that have shorter-weighted average maturities, such as money market and short-term bond funds. A period of rising interest rates may negatively affect the fund’s performance.

Debt securities, even investment-grade debt securities, are subject to credit risk. Credit risk is the risk that the inability or perceived inability of the issuer to make interest and principal payments will cause the value of the securities to decrease. As a result the value of the fund’s fixed-income securities could also decrease. A high credit rating indicates a high degree of confidence by the rating organization that the issuer will be able to withstand adverse business, financial or economic conditions and make interest and principal payments on time. A lower credit rating indicates a greater risk of non-payment. Changes in the credit rating of a debt security held by the fund could have a similar effect. The fund’s credit quality restrictions apply at the time of purchase; the fund will not necessarily sell securities if they are downgraded by a rating agency.

Most of the securities purchased by the fixed-income portion of the fund are investment-grade debt securities at the time of purchase. The fund, however, may invest part of its assets in securities rated in the lowest investment-grade category (e.g., BBB), and up to 15% of its assets in the fixed-income portion in securities rated in the fifth category (e.g., BB). As a result, the fund may have increased credit risk. Although their securities are considered investment-grade, issuers of BBB-rated securities (and securities of similar quality) are more likely to have problems making interest and principal payments than issuers of higher-rated securities. Issuers of securities rated BB or below (and securities of similar quality) are even more vulnerable to real or perceived economic changes (such as an economic downturn or a prolonged period of rising interest rates), political changes or adverse developments specific to the issuer. In addition, lower-rated securities may be unsecured or subordinated to other obligations of the issuer. These factors may be more likely to cause an issuer of low-quality debt securities to default on its obligation to pay the interest and principal due under its securities.

The fund may invest in debt securities backed by mortgages or assets such as auto loan, home equity loan or student loan receivables. These underlying obligations may be prepaid, as when a homeowner refinances a mortgage to take advantage of declining interest rates. If so, the fund must reinvest prepayments at current rates, which may be less than the rate of the prepaid mortgage. Because of this prepayment risk, the fund may benefit less from declining interest rates than funds of similar maturity that invest less heavily in mortgage- and asset-backed securities.

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The fund may invest in the securities of foreign companies. Foreign securities can have certain unique risks, including fluctuations in currency exchange rates, unstable social, political and economic structures, reduced availability of public information, and the lack of uniform financial reporting and regulatory practices similar to those that apply to U.S. issuers. These factors make investing in foreign securities generally riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent the fund invests in foreign securities, the overall risk of the fund could be affected.

The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional instruments. Derivatives are subject to a number of risks, including liquidity, interest rate, market, and credit risk. They also involve the risk of mispricing or improper valuation, the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the risk of default or bankruptcy of the other party to the instrument. Gains or losses involving some futures, options, and other derivatives may be substantial—in part because a relatively small price movement in these securities may result in an immediate and substantial gain or loss for the fund.

Investments in bank loans, loans made by banks or other financial intermediaries to borrowers, require the fund to depend primarily upon the creditworthiness of the borrower for payment of principal and interest, exposing the fund to the credit risk of both the financial institution and the underlying borrower. The market for bank loans may not be highly liquid and the fund may have difficulty selling them. In connection with purchasing participations, the fund generally will have no right to enforce compliance by the borrower with the terms of the loan agreement, nor any rights with respect to any funds acquired by other lenders through set-off against the borrower, and the fund may not directly benefit from any collateral supporting the loan in which it has purchased the articipation. In addition, transactions in bank loans may take more than seven days to settle. As a result, the proceeds from the sale of bank loans may not be readily available to make additional investments or to meet the fund’s redemption obligations. Some bank loan interests may not be registered under the Securities Act of 1933 and therefore not afforded the protections of the federal securities laws.

The risks of an investment in a collateralized debt obligation depend largely on the type of the collateral securities and the class of the debt obligation in which the fund invests. Collateralized debt obligations (CDOs) and collateralized loan obligations (CLOs) are subject to credit, interest rate, valuation, prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of CLO securities may be affected by, among other things, changes in the market value of the underlying assets held by the CLO, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, prices and interest rate of underlying assets.

The fund may also be subject to liquidity risk. The chance that a fund will have difficulty selling its debt securities is called liquidity risk. During periods of market turbulence or unusually low trading activity, to meet redemptions it may be necessary for the fund to sell securities at prices that could have an adverse effect on the fund’s share price. Changing regulatory and market conditions, including increases in interest rates and credit spreads may adversely affect the liquidity of the fund’s investments.

The value of the fund’s shares may fluctuate significantly in the short term.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

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Management

Who manages the fund?

The Board of Directors, investment advisor and fund management teams play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

The advisor is responsible for managing the investment portfolios of the fund and directing the purchase and sale of their investment securities. The advisor also arranges for transfer agency, custody and all other services necessary for the fund to operate.

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. The advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.

The rate of the fee is determined by applying a formula that takes into account the assets of the fund as well as certain assets, if any, of other clients of the advisor outside the American Century Investments fund family (such as subadvised funds and separate accounts) that use very similar investment teams and strategies (strategy assets). The use of strategy assets, rather than fund assets alone, in calculating the fund’s fee rate could allow the fund to realize scheduled cost savings more quickly. However, it is possible that the fund’s strategy assets will not include assets of other client accounts or that any such assets may not be sufficient to result in a lower fee rate.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	R5 Class
Balanced	0.90%	0.70%	N/A ¹

¹ The R5 Class had not operated for a full fiscal year as of October 31, 2017 . The class will pay the advisor a unified fee calculated using the following schedule.



Class	Percentage of Strategy Assets
R5	0.70% of the first $1 billion 0.60% over $1 billion

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage the equity and fixed-income portions of the fund. These teams function in different ways, as described below. The five portfolio managers with the most significant responsibility for the day-to-day management of the fund are identified below.

Equity Portion of Balanced

The team that manages the equity portion of the fund meets regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for the equity portion of the fund as they see fit, guided by the fund’s investment

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objective and strategy. The individuals listed below are jointly and primarily responsible for the day-to-day management of the equity portion of the fund.

Claudia Musat

Ms. Musat, Vice President, Portfolio Manager and Quantitative Analyst, has been a member of the team that manages the fund since 2010. She joined American Century Investments in 2005 as a quantitative analyst and became a portfolio manager in 2008. She has a bachelor’s degree in computer science from the University of Iasi, Romania, a master’s degree in mathematics from Florida State University and a master’s degree in financial engineering from the University of California at Berkeley.

Steven Rossi

Mr. Rossi, Portfolio Manager, has been a member of the team that manages the fund since joining American Century Investments in 2016. Prior to joining American Century Investments, he worked at RS Investments from 2012 to 2016, most recently as portfolio manager. He previously held the roles of analyst and quantitative analyst. From 2005 to 2012 he was a quantitative analytics specialist at FactSet Research Systems. He has a bachelor’s degree in Political Economics of Industrialized Societies from the University of California at Berkeley. He is a CFA charterholder.

Fixed-Income Portion of Balanced

The advisor uses teams of portfolio managers and analysts, organized by broad investment categories such as money markets, corporate bonds, government bonds and municipal bonds, in its management of fixed-income funds. Designated portfolio managers serve on the firm’s Global Macro Strategy Team, which is responsible for periodically adjusting strategic investment parameters based on economic and market conditions. Other portfolio managers are responsible for security selection and portfolio construction within these strategic parameters, as well as compliance with stated investment objectives and cash flow monitoring. Other members of the investment team provide research and analytical support but generally do not make day-to-day investment decisions. The individuals listed below have the most significant responsibility for the day-to-day management of the fixed-income portion of the fund.

G. David MacEwen (Global Macro Strategy Team Representative)

Mr. MacEwen, Co-Chief Investment Officer and Senior Vice President, has served on teams managing fixed-income investments for American Century since joining the advisor in 1991. He has a bachelor’s degree in economics from Boston University and an MBA in finance from the University of Delaware.

Robert V. Gahagan (Global Macro Strategy Team Representative)

Mr. Gahagan, Senior Vice President and Senior Portfolio Manager, has served on teams managing fixed-income investments for American Century since joining the advisor in 1983. He has a bachelor’s degree in economics and an MBA from the University of Missouri – Kansas City.

Brian Howell

Mr. Howell, Vice President and Senior Portfolio Manager, has served on teams managing fixed-income investments for American Century since joining the advisor in 1987. He has a bachelor’s degree in mathematics/statistics and an MBA from the University of California – Berkeley.

Fundamental Investment Policies

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Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments’ bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

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Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares* : Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

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Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund, and helping defray the costs associated with offering the fund. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

Investor Class

I Class

R5 Class

R5 Class shares are available for purchase without sales charges or commissions by participants in certain employer-sponsored retirement plans. R5 Class shares may be purchased or redeemed only through employer-sponsored retirement plans where a financial intermediary provides retirement recordkeeping services to plan participants.

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

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with procedures relating to the transmission of orders. Orders must be received by the financial intermediary on the fund’s behalf before the time the net asset value is determined in order to receive that day’s share price. If those orders are transmitted to American Century Investments and paid for in accordance with the selling agreement, they will be priced at the net asset value next determined after your request is received in the form required by the financial intermediary.

Investor and I Class shares may also be available on brokerage platforms of financial intermediaries that have agreements with American Century Investments to offer such shares solely when acting as an agent for the shareholder. A shareholder transacting in Investor or I Class shares in these programs may be required to pay a commission and/or other forms of compensation to the broker. Shares of the fund may be available in other share classes that have different fees and expenses.

Moving Between Share Classes and Accounts

See Additional Policies Affecting Your Investment for more information about investing with us.

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Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor Class



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

I Class shares are made available for purchase by individuals and large institutional shareholders such as bank trust departments, corporations, endowments, foundations and financial advisors that meet the fund’s minimum investment requirements. Employer-sponsored plans may not invest in I Class shares, except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

Minimum Initial Investment Amounts for I Class

The minimum initial investment amount is generally $5 million ($3 million for endowments and foundations) per fund. If you invest with us through a financial intermediary, this requirement may be met if your financial intermediary aggregates your investments with those of other clients into a single group, or omnibus, account that meets the minimum. The minimum investment requirement may be waived if you have an aggregate investment in the American Century family of funds of $10 million or more ($5 million for endowments and foundations).This includes accounts held directly with American Century and those held through a financial intermediary. American Century Investments also may waive the minimum initial investment in other situations it deems appropriate.

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for R5 Class Shares

The fund’s R5 Class shares are generally available only through employer-sponsored retirement plans where a financial intermediary provides retirement recordkeeping services to plan participants. To be eligible, plan level or omnibus accounts must be held on the books of the fund.

R5 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 Class

There is no minimum initial amount or subsequent investment amount for R5 Class shares, but financial intermediaries or plan recordkeepers may require plans to meet different investment minimums.

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Redemptions

Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that you may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

Signature Guarantees

A signature guarantee — which is different from a notarized signature — is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from

those on record; or

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•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase; or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

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Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

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Share Price and Distributions

Share Price



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

Readily available market quotations for fixed income securities shall generally be received from independent pricing services that have been approved by the Board. It is anticipated that such pricing services will generally provide evaluated prices based on accepted industry conventions. Evaluated prices are commonly derived through utilization of market models. Such models take into consideration various market factors and security characteristics. These include, but are not limited to, the following: trade data, quotations from broker- dealers and active market makers, relevant yield curve and spread data, related sector levels, creditworthiness, trade data or market information on comparable securities and other relevant security specific information. Debt obligations with 60 days or less remaining until maturity may be valued at amortized cost.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means that the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions of substantially all its income, if any, quarterly. Distributions from realized capital gains, if any, are paid annually, usually in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.

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	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

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Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Buying a Dividend

21 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

22 #

Multiple Class Information

Except as described below, all classes of shares of the fund have identical voting, dividend, liquidation and other rights, preferences, terms and conditions. The only differences between the classes are (a) each class may be subject to different expenses specific to that class; (b) each class has a different identifying designation or name; (c) each class has exclusive voting rights with respect to matters solely affecting that class; (d) each class may have different exchange privileges; and (e) the I Class may provide for conversion from that class into shares of the Investor Class of the same fund.

23 #

Financial Highlights

Understanding the Financial Highlights

The table on the next page itemizes what contributed to the changes in share price during the most recently ended fiscal year. It also shows the changes in share price for this period in comparison to changes over the last five fiscal years (or shorter period if the share class is not five years old).

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

24 #

Balanced Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$17.39	0.26	2.10	2.36	(0.28)	(0.16)	(0.44)	$19.31	13.78%	0.91%	1.44%	112%		$814,569
2016	$17.91	0.25	0.26	0.51	(0.26)	(0.77)	(1.03)	$17.39	3.14%	0.90%	1.44%	104%		$754,957
2015	$19.38	0.26	(0.08)	0.18	(0.28)	(1.37)	(1.65)	$17.91	0.98%	0.90%	1.43%	94%		$789,209
2014	$19.19	0.25	1.66	1.91	(0.28)	(1.44)	(1.72)	$19.38	10.76%	0.90%	1.36%	64%		$815,636
2013	$17.41	0.30	2.25	2.55	(0.31)	(0.46)	(0.77)	$19.19	15.21%	0.90%	1.64%	81%		$721,523
I Class ⁽³⁾
2017	$17.40	0.30	2.09	2.39	(0.31)	(0.16)	(0.47)	$19.32	13.99%	0.71%	1.64%	112%		$73,385
2016	$17.92	0.28	0.27	0.55	(0.30)	(0.77)	(1.07)	$17.40	3.35%	0.70%	1.64%	104%		$58,915
2015	$19.39	0.30	(0.09)	0.21	(0.31)	(1.37)	(1.68)	$17.92	1.19%	0.70%	1.63%	94%		$54,230
2014	$19.20	0.29	1.65	1.94	(0.31)	(1.44)	(1.75)	$19.39	10.98%	0.70%	1.56%	64%		$49,009
2013	$17.41	0.32	2.28	2.60	(0.35)	(0.46)	(0.81)	$19.20	15.49%	0.70%	1.84%	81%		$47,004
R5 Class
2017 ⁽⁴⁾	$18.18	0.17	1.14	1.31	(0.17)	—	(0.17)	$19.32	7.21%	0.71% ⁽⁵⁾	1.66% ⁽⁵⁾	112% ⁽⁶⁾		$5



Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	April 10, 2017 (commencement of sale) through October 31, 2017.


(5)	Annualized.


(6)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.

25 #

Notes

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91780 1803

March 1, 2018

American Century Investments

Prospectus

Capital Value Fund

Investor Class (ACTIX)

I Class (ACPIX)

A Class (ACCVX)



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	4
Purchase and Sale of Fund Shares	4
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	16
Share Price and Distributions	20
Taxes	22
Multiple Class Information	24
Financial Highlights	25
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	A
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	5.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None ²
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	A
Management Fee	1.10%	0.90%	1.10%
Distribution and Service (12b-1) Fees	None	None	0.25%
Other Expenses	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.11%	0.91%	1.36%
Fee Waiver ³	0.10%	0.10%	0.10%
Total Annual Fund Operating Expenses After Fee Waiver	1.01%	0.81%	1.26%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.


³	The advisor has agreed to waive 0.10 percentage points of the fund’s management fee. The advisor expects this waiver to continue until February 28, 2019 and cannot terminate it prior to such date without the approval of the Board of Directors.

Example



	1 year	3 years	5 years	10 years
Investor Class	$103	$344	$603	$1,343
I Class	$83	$281	$495	$1,111
A Class	$696	$972	$1,269	$2,107

2 #

Portfolio Turnover

Principal Investment Strategies

The portfolio managers use a value investment strategy that invests primarily in stocks of medium to large companies that the portfolio managers believe are undervalued at the time of purchase. In selecting stocks, the portfolio managers look for companies that are temporarily out of favor in, or whose value is not yet recognized by, the market. To identify these companies, the portfolio managers look for companies with earnings, cash flows and/or assets that may not be reflected accurately in the companies’ stock prices.

The portfolio managers also attempt to minimize taxable distributions to fund shareholders. The fund’s tax-sensitive techniques may, from time to time, be inconsistent with the fund’s objective of long-term capital growth. Since the fund focuses on after-tax returns, it may not provide as high a pre-tax return relative to other funds.

The portfolio managers may elect to sell a security, even if the sale results in a taxable gain, if they determine that the tax impact of the sale is outweighed by other factors. Such factors include the investment risk of holding the security or the availability of a replacement security that has a better potential return.

Principal Risks


•	Value Investing – If the market does not consider the individual stocks purchased by the fund to be undervalued, the value of the fund’s shares may decline, even if stock prices generally are rising.


•	Tax Risk – While the fund seeks to minimize taxable distributions to shareholders, it nonetheless may realize capital gains on the sale of investment securities and earn dividend income. Federal tax laws require the fund to make distributions of such gains and income to its shareholders. Distributions may be taxable as ordinary income, capital gains, or a combination of the two.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

3 #

Calendar Year Total Returns

Highest Performance Quarter ( 3Q 2009 ): 15.88% Lowest Performance Quarter ( 4Q 2008 ): -20.69%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years
Investor Class Return Before Taxes	11.75%	12.92%	6.07%
Return After Taxes on Distributions	9.06%	11.06%	5.02%
Return After Taxes on Distributions and Sale of Fund Shares	8.85%	10.15%	4.75%
I Class Return Before Taxes	11.82%	13.12%	6.27%
A Class ¹ Return Before Taxes	5.09%	11.30%	5.18%
Russell 1000® Value Index (reflects no deduction for fees, expenses or taxes)	13.66%	14.03%	7.10%

¹ Prior to March 1, 2010, the A Class was referred to as the Advisor Class and did not have a front-end sales charge. Performance prior to that date has been restated to reflect this charge.

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Brendan Healy , CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2000.

Brian Woglom , CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2016.

Purchase and Sale of Fund Shares

4 #

Investor and A Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

For Investor and A Classes, there is no minimum initial investment amount for certain employer-sponsored retirement plans, however, financial intermediaries or plan recordkeepers may require plans to meet different minimums. For purposes of fund minimums, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Employer-sponsored retirement plans are not eligible to invest in the I Class.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers seek to achieve the fund’s objective by investing primarily in common stocks. The portfolio managers also will attempt to minimize the impact of federal income taxes on shareholder returns by attempting to minimize taxable distributions to shareholders.

The portfolio managers use a value investment strategy to look for stocks of medium to large companies the portfolio managers believe are undervalued at the time of purchase. The portfolio managers attempt to purchase the stocks of these undervalued companies and hold them until they have returned to favor in the market and their stock prices have gone up.

Companies may be undervalued due to market declines, poor economic conditions, actual or anticipated bad news regarding the issuer or its industry, or because they have been overlooked by other investors. To identify these companies, the portfolio managers look for companies with earnings, cash flows and/or assets that may not be reflected accurately in the companies’ stock prices.

To minimize taxable distributions, the portfolio managers employ the following tax-sensitive techniques that may, from time to time, be inconsistent with the fund’s objective of long-term capital growth


•	The portfolio managers seek to minimize realized capital gains by keeping portfolio turnover relatively low and generally holding portfolio investments for longer periods.


•	The portfolio managers seek to minimize realized capital gains when selling the shares of a specific company by analyzing the fund’s holdings of that company to determine which shares were purchased at what price and typically selling those shares bought at the highest price.


•	The portfolio managers may seek to minimize realized capital gains by selling securities to realize capital losses. Realized capital losses can offset realized capital gains, thereby reducing capital gains distributions to the fund’s shareholders.


•	The portfolio managers may seek to minimize taxable dividend income where appropriate by investing in stocks with lower dividend yields.

While the fund seeks to minimize taxable distributions to shareholders, it may realize taxable gains and earn some dividends. For example, the portfolio managers may elect to sell a security, even if the sale results in a taxable gain, if they determine that the tax impact of the sale is outweighed by other factors. Such factors include the investment risk of holding the security or the availability of a replacement security that has a better potential return. Since the fund focuses on after-tax returns, it may not provide as high a pre-tax return relative to other funds. For more information regarding applicable taxes, see Taxes , page 22.

Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, when the managers believe it is prudent, the fund may invest in securities of foreign companies.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

If the market does not consider the individual stocks purchased by the fund to be undervalued, the value of the fund’s shares may not rise as high as other funds and may in fact decline, even if stock prices generally are increasing.

While the fund seeks to minimize taxable distributions to shareholders, it nonetheless may realize capital gains on the sale of investment securities and earn dividend income. For example, the portfolio managers may elect to sell a security even if it results in a taxable gain if the managers determine the tax impact of the sale is outweighed by other factors (such as the investment risk of the security). Federal tax laws require the fund to make distributions of such gains and income to its shareholders on at least an annual basis. Distributions may be taxable as ordinary income, capital gains, or a combination of the two.

Market performance tends to be cyclical, and, in the various cycles, certain investment styles may fall in and out of favor. If the market is not favoring the fund’s style, the fund’s gains may not be as big as, or its losses may be bigger than, other equity funds using different investment styles.

6 #

U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent the fund invests in foreign securities, the overall risk of the fund could be affected.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. The advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	A Class
Capital Value	1.00%	0.80%	1.00%

The Fund Management Team

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Brendan Healy

Mr. Healy, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2000. He joined American Century Investments in 2000 and became a portfolio manager in 2004. He has a bachelor’s degree in mechanical engineering from the University of Arizona and an MBA from the University of Texas – Austin. He is a CFA charterholder.

8 #

Brian Woglom

Mr. Woglom, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2016. He joined American Century Investments in 2005 as an investment analyst and became a portfolio manager in 2012. He has a bachelor’s degree from Amherst College and an MBA from the Ross School of Business, University of Michigan. He is a CFA charterholder.

Fundamental Investment Policies

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares* : Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

I Class shares are available for purchase without sales charges or commissions by endowments, foundations, large institutional investors, and financial intermediaries. Employer-sponsored retirement plans may not invest in I Class shares except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

A Class

Calculation of Sales Charges

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

12 #

professional for purchases by certain employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Reductions and Waivers of Sales Charges for A Class


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

Waivers for Certain Investors . The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

13 #

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for the A Class may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½


•	required minimum distributions from retirement accounts upon reaching age 70½


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor and A Class shares. Employer-sponsored retirement plans are not eligible to purchase I Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

14 #

unless the money market fund shares were acquired by exchange from a fund with a sales charge or by reinvestment of dividends or capital gains distributions.

Moving Between Share Classes and Accounts

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

See Additional Policies Affecting Your Investment for more information about investing with us.

15 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor and A Classes

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500. Investors opening accounts though financial intermediaries may open an account with $250, but the financial intermediaries may require their clients to meet different investment minimums. See Investing Through a Financial Intermediary for more information.



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

The I Class shares are made available for purchase by individuals and large institutional shareholders such as bank trust departments, corporations, endowments, foundations and financial advisors that meet the fund’s minimum investment requirements. Employer-sponsored retirement plans may not invest in I Class shares except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

Minimum Initial Investment Amounts for I Class

The minimum initial investment amount is generally $5 million ($3 million for endowments and foundations) per fund. If you invest with us through a financial intermediary, this requirement may be met if your financial intermediary aggregates your investments with those of other clients into a single group, or omnibus, account that meets the minimum. The minimum investment requirement may be waived if you have an aggregate investment in the American Century family of funds of $10 million or more ($5 million for endowments and foundations).This includes accounts held directly with American Century and those held through a financial intermediary. American Century Investments also may waive the minimum initial investment in other situations it deems appropriate.

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Redemptions

16 #

redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that you may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

Signature Guarantees

A signature guarantee — which is different from a notarized signature — is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from

those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

17 #

(including a purchase by exchange). Additionally, we may refuse a purchase if, in our judgment, it is of a size that would disrupt the management of a fund.

Frequent Trading Practices


•	within seven days of the purchase; or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

18 #

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

19 #

Share Price and Distributions

Share Price



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

20 #

21 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions

Although the fund seeks to maximize long-term capital growth while minimizing taxable distributions, the fund nonetheless may make distributions to its shareholders. For example, the fund’s portfolio managers may elect to sell a security even if it results in a taxable gain if they determine the tax impact is outweighed by the investment risk of the security or by the availability of replacement securities that are a better value after considering the tax effect of the sale.



	Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

22 #

Buying a Dividend

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

23 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The A Class offered by this prospectus has a 12b-1 Plan. Under the A Class Plan, the fund’s A Class pays the distributor an annual fee of 0.25% of A Class average net assets, for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to financial intermediaries that make A Class shares available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, the A Class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. For additional information about the plan and its terms, see Multiple Class Structure in the statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the funds over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

24 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

25 #

Capital Value Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Operating Expenses (before expense waiver)	Net Investment Income (Loss)	Net Investment Income (Loss) (before expense waiver)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$8.71	0.16	1.29	1.45	(0.14)	(0.62)	(0.76)	$9.40	17.24%	1.01%	1.11%	1.76%	1.66%	26%		$145,583
2016	$9.05	0.14	0.21	0.35	(0.14)	(0.55)	(0.69)	$8.71	4.36%	1.00%	1.10%	1.72%	1.62%	45%		$133,732
2015	$9.71	0.12	(0.08)	0.04	(0.13)	(0.57)	(0.70)	$9.05	0.61%	1.00%	1.10%	1.28%	1.18%	31%		$143,698
2014	$8.51	0.12	1.20	1.32	(0.12)	—	(0.12)	$9.71	15.68%	1.00%	1.10%	1.32%	1.22%	31%		$151,715
2013	$6.89	0.13	1.61	1.74	(0.12)	—	(0.12)	$8.51	25.67%	1.00%	1.10%	1.66%	1.56%	26%		$138,884
I Class ⁽³⁾
2017	$8.74	0.18	1.30	1.48	(0.16)	(0.62)	(0.78)	$9.44	17.55%	0.81%	0.91%	1.96%	1.86%	26%		$3,116
2016	$9.08	0.16	0.21	0.37	(0.16)	(0.55)	(0.71)	$8.74	4.67%	0.80%	0.90%	1.92%	1.82%	45%		$1,924
2015	$9.74	0.14	(0.08)	0.06	(0.15)	(0.57)	(0.72)	$9.08	0.72%	0.80%	0.90%	1.48%	1.38%	31%		$3,071
2014	$8.54	0.14	1.20	1.34	(0.14)	—	(0.14)	$9.74	15.86%	0.80%	0.90%	1.52%	1.42%	31%		$3,019
2013	$6.90	0.15	1.62	1.77	(0.13)	—	(0.13)	$8.54	26.00%	0.80%	0.90%	1.86%	1.76%	26%		$3,289
A Class
2017	$8.68	0.13	1.30	1.43	(0.12)	(0.62)	(0.74)	$9.37	16.99%	1.26%	1.36%	1.51%	1.41%	26%		$3,685
2016	$9.01	0.12	0.22	0.34	(0.12)	(0.55)	(0.67)	$8.68	4.21%	1.25%	1.35%	1.47%	1.37%	45%		$4,312
2015	$9.67	0.09	(0.07)	0.02	(0.11)	(0.57)	(0.68)	$9.01	0.34%	1.25%	1.35%	1.03%	0.93%	31%		$4,504
2014	$8.48	0.10	1.19	1.29	(0.10)	—	(0.10)	$9.67	15.32%	1.25%	1.35%	1.07%	0.97%	31%		$4,107
2013	$6.87	0.11	1.62	1.73	(0.12)	—	(0.12)	$8.48	25.51%	1.25%	1.35%	1.41%	1.31%	26%		$3,155

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds, provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

Notes

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91104 1803

March 1, 2018

American Century Investments

Prospectus

Growth Fund

Investor Class ( TWCGX )

I Class ( TWGIX )

Y Class ( AGYWX )

A Class ( TCRAX )

C Class ( TWRCX )

R Class ( AGWRX )

R5 Class ( AGWUX )

R6 Class ( AGRDX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	5
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
Share Price and Distributions	21
Taxes	23
Multiple Class Information	25
Financial Highlights	26
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 13 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	Y	A	C	R	R5	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	None	5.75%	None	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None	None²	1.00%	None	None	None
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None	None	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	Y	A	C	R	R5	R6
Management Fee	0.97%	0.77%	0.62%	0.97%	0.97%	0.97%	0.77%	0.62%
Distribution and Service (12b-1) Fees	None	None	None	0.25%	1.00%	0.50%	None	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	0.98%	0.78%	0.63%	1.23%	1.98%	1.48%	0.78%	0.63%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor, I or Y Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$100	$313	$542	$1,201
I Class	$80	$250	$434	$966
Y Class	$65	$202	$352	$787
A Class	$693	$943	$1,212	$1,978
C Class	$201	$622	$1,068	$2,303
R Class	$151	$469	$809	$1,767
R5 Class	$80	$250	$434	$966
R6 Class	$65	$202	$352	$787

Portfolio Turnover

2 #

account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 48% of the average value of its portfolio.

Principal Investment Strategies

The portfolio managers look for stocks of companies they believe will increase in value over time. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.

The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.


•	Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk — Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

•

Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

3 #

Calendar Year Total Returns

Highest Performance Quarter ( 1Q 2012 ): 15.91% Lowest Performance Quarter ( 4Q 2008 ): -22.91%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	30.09%	15.30%	8.58%	—	06/30/1971
Return After Taxes on Distributions	27.00%	12.53%	7.12%	—	06/30/1971
Return After Taxes on Distributions and Sale of Fund Shares	19.20%	11.68%	6.68%	—	06/30/1971
I Class Return Before Taxes	30.40%	15.53%	8.80%	—	06/16/1997
Y Class ¹ Return Before Taxes	30.60%	—	—	14.21%	04/10/2017
A Class ² Return Before Taxes	22.36%	13.67%	7.67%	—	06/04/1997
C Class ³ Return Before Taxes	28.87%	14.16%	7.51%	—	03/01/2010
R Class Return Before Taxes	29.46%	14.73%	8.04%	—	08/29/2003
R5 Class ⁴ Return Before Taxes	30.40%	15.53%	8.80%	—	04/10/2017
R6 Class Return Before Taxes	30.58%	—	—	14.21%	07/26/2013
Russell 1000 ^® Growth Index (reflects no deduction for fees, expenses or taxes)	30.21%	17.32%	9.99%	—	—


¹	Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date.


²	Prior to March 1, 2010, the A Class was referred to as the Advisor Class and did not have a front-end sales charge. Performance prior to that date has been restated to reflect this charge.


³	Historical performance for C Class prior to its inception is based on the performance of Investor Class shares. C Class performance has been adjusted to reflect differences in sales charges, if applicable, and expenses between classes.


⁴	Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares.

4 #

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Gregory J. Woodhams , CFA, Co-CIO, Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since joining the advisor in 1997.

Justin M. Brown, CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since joining the advisor in 2000.

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

There is no minimum initial investment amount for Y, R5 or R6 Class shares.

For the Investor, A, C, R, R5 and R6 Classes, there is no minimum initial investment amount for certain employer-sponsored retirement plans, however, financial intermediaries or plan recordkeepers may require plans to meet different minimums. For purposes of fund minimums, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Employer-sponsored retirement plans are not eligible to invest in the I or Y Class.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the Y and R6 Classes. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers look for stocks of larger-sized companies they believe will increase in value over time. In implementing this strategy, the portfolio managers use a bottom-up approach to stock selection. This means that the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.

The portfolio managers track financial information for individual companies to identify and evaluate trends in earnings, revenues and other business fundamentals . Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Growth stocks are typically priced higher than other stocks, in relation to earnings and other measures, because investors believe they have more growth potential. This potential may or may not be realized. If the portfolio managers’ assessment of a company’s prospects for earnings growth or how other investors will value the company’s earnings growth is incorrect, the price of the company’s stock may fall or fail to reach the value the portfolio managers have placed on it. Growth stock prices tend to fluctuate more dramatically than the overall stock market.

The portfolio managers may buy a large amount of a company’s stock quickly, and often will dispose of it quickly if the company’s earnings or revenues decline. While the portfolio managers believe this strategy provides substantial appreciation potential over the long term, in the short term it can create a significant amount of share price volatility. This volatility can be greater than that of the average stock fund.

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

6 #

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than the Y and R6 Classes, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.

The rate of the fee is determined by applying a formula that takes into account the assets of the fund and the NT Growth fund as well as certain assets, if any, of other clients of the advisor outside the American Century Investments fund family (such as subadvised funds and separate accounts) that use very similar investment teams and strategies (strategy assets). The use of strategy assets, rather than fund assets alone, in calculating the fund’s fee rate could allow the fund to realize scheduled cost savings more quickly. However, it is possible that the fund’s strategy assets will not include assets of other client accounts or that any such assets may not be sufficient to result in a lower fee rate.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	Y Class	A Class	C Class	R Class	R5 Class	R6 Class
Growth	0.97%	0.77%	N/A ¹	0.97%	0.97%	0.97%	N/A ¹	0.62%

¹ The Y and R5 Classes had not operated for a full fiscal year as of October 31, 2017 . The classes will pay the advisor a unified management fee calculated using the following schedules.



Class	Percentage of Strategy Assets
Y	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion

8 #

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Gregory J. Woodhams

Mr. Woodhams, Co-CIO , Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since he joined American Century Investments in 1997 and became a portfolio manager in 1998. He has a bachelor’s degree in economics from Rice University and an M.A. in economics from the University of Wisconsin. He is a CFA charterholder.

Justin M. Brown

Mr. Brown, Vice President and Portfolio Manager, has been a member of the team that manages the fund since joining American Century Investments in 2000 as an investment analyst. He became a portfolio manager in 2006. He has a bachelor’s degree in business administration and finance from Texas Christian University. He is a CFA charterholder.

Fundamental Investment Policies

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments’ bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares*: Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

Y Class

A Class

C Clas s

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R5 and R6 Class

R5 and R6 Class shares are available for purchase without sales charges or commissions by participants in certain employer-sponsored retirement plans. R5 and R6 Class shares may be purchased or redeemed only through employer-sponsored retirement plans where a financial intermediary provides retirement recordkeeping services to plan participants.

12 #

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class

Account Aggregation. Investments made by you and your immediate family may be aggregated at each account’s current market value if made for your own account(s) and/or certain other accounts, such as:


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

13 #

money market funds. At your request, existing holdings may be combined with new purchases and sales charge amounts may be adjusted for purchases made within 90 days prior to our receipt of the Letter of Intent. Capital appreciation, capital gains and reinvested dividends earned during the Letter of Intent period do not apply toward its completion. A portion of your account will be held in escrow to cover additional A Class sales charges that will be due if your total investments over the 13-month period do not qualify for the applicable sales charge reduction.

Waivers for Certain Investors. The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However, if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

C Class

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for the A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value for A and C Class shares


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½ for A Class shares and for C Class shares

14 #


•	required minimum distributions from retirement accounts upon reaching age 70½


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R, R5 and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century Investments does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Moving Between Share Classes and Accounts

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

15 #

Investor, I and Y Class shares may also be available on brokerage platforms of financial intermediaries that have agreements with American Century Investments to offer such shares solely when acting as an agent for the shareholder. A shareholder transacting in Investor, I or Y Class shares in these programs may be required to pay a commission and/or other forms of compensation to the broker. Shares of the fund are available in other share classes that have different fees and expenses.

See Additional Policies Affecting Your Investment for more information about investing with us.

16 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

Minimum Initial Investment Amounts for I Class

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for Y Class Shares

Y Class shares are available for purchase without sales charges or commissions through financial intermediaries that offer fee based advisory programs. Y Class shares may be purchased or redeemed only through financial intermediaries that trade in omnibus accounts with American Century Investments. Y Class shares may not be purchased by shareholders investing through employer-sponsored retirement plans or individuals investing directly with American Century Investments.

Minimum Initial Investment Amounts for Y Class

There is no minimum initial investment amount or subsequent investment amount for Y Class shares, but financial intermediaries may require different investment minimums.

17 #

Eligibility for R5 and R6 Class Shares

The fund’s R5 and R6 Class shares are generally available only through employer-sponsored retirement plans where a financial intermediary provides retirement recordkeeping services to plan participants. To be eligible, plan level or omnibus accounts must be held on the books of the fund. R6 Class shares also are available to funds of funds advised by American Century and unaffiliated funds of funds sold primarily to the employer-sponsored retirement plan market.

R5 and R6 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 and R6 Classes

There is no minimum initial investment amount or subsequent investment amount for R5 and R6 Class shares, but financial intermediaries or plan recordkeepers may require plans to meet different investment minimums.

Redemptions

Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order. If you sell C, or in certain cases, A Class shares, you may pay a sales charge, depending on how long you have held your shares, as described above.

Generally, we expect to remit your redemption proceeds to you one business day after we process your transaction. However, we reserve the right to delay delivery of redemption proceeds for up to seven days. For example, each time you make an investment with American Century Investments, there is a seven-day holding period before we will release redemption proceeds from those shares, unless you provide us with satisfactory proof that your purchase funds have cleared. Investments by wire generally require only a one-day holding period. If you change your address, we may require that any redemption request made within seven days be submitted in writing and be signed by all authorized signers with their signatures guaranteed. We may also require a signature guarantee for redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

18 #

election to receive dividends and distributions in cash after a check is returned undeliverable or uncashed for the six month period, and we may automatically reinvest all future dividends and distributions at the NAV on the date of the payment.

Signature Guarantees

A signature guarantee—which is different from a notarized signature—is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase, or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;

19 #


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

20 #

Share Price and Distributions

Share Price



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

21 #

22 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Buying a Dividend

23 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

24 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class, C Class and R Class each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% for C Class and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

American Century Investments does not pay any fees to financial intermediaries on Y or R6 Class shares.

25 #

Financial Highlights

Understanding the Financial Highlights

The table on the next few pages itemizes what contributed to the changes in share price during the most recently ended fiscal year. It also shows the changes in share price for this period in comparison to changes over the last five fiscal years (or a shorter period if the share class is not five years old).

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

26 #

Growth Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$28.64	0.08	7.67	7.75	(0.17)	(1.29)	(1.46)	$34.93	28.26%	0.98%	0.26%	48%		$5,648,965
2016	$30.57	0.16	(0.08)	0.08	(0.10)	(1.91)	(2.01)	$28.64	0.40%	0.98%	0.57%	36%		$5,122,550
2015	$35.39	0.10	2.34	2.44	(0.10)	(7.16)	(7.26)	$30.57	9.07%	0.97%	0.35%	49%		$5,952,798
2014	$33.10	0.11	4.22	4.33	(0.12)	(1.92)	(2.04)	$35.39	13.84%	0.97%	0.32%	103%		$6,021,115
2013	$27.48	0.21	6.53	6.74	(0.25)	(0.87)	(1.12)	$33.10	25.42%	0.97%	0.71%	67%		$6,327,674
I Class ⁽³⁾
2017	$29.11	0.15	7.78	7.93	(0.23)	(1.29)	(1.52)	$35.52	28.48%	0.78%	0.46%	48%		$1,271,821
2016	$31.03	0.23	(0.08)	0.15	(0.16)	(1.91)	(2.07)	$29.11	0.64%	0.78%	0.77%	36%		$1,297,685
2015	$35.83	0.17	2.36	2.53	(0.17)	(7.16)	(7.33)	$31.03	9.30%	0.77%	0.55%	49%		$1,723,219
2014	$33.49	0.18	4.27	4.45	(0.19)	(1.92)	(2.11)	$35.83	14.03%	0.77%	0.52%	103%		$2,482,606
2013	$27.75	0.27	6.60	6.87	(0.26)	(0.87)	(1.13)	$33.49	25.68%	0.77%	0.91%	67%		$2,842,185
Y Class
2017 ⁽⁴⁾	$30.93	0.08	4.53	4.61	—	—	—	$35.54	14.90%	0.63% ⁽⁵⁾	0.43% ⁽⁵⁾	48% ⁽⁶⁾		$56,218
A Class
2017	$27.86	0.01	7.46	7.47	(0.10)	(1.29)	(1.39)	$33.94	27.95%	1.23%	0.01%	48%		$113,348
2016	$29.78	0.10	(0.08)	0.02	(0.03)	(1.91)	(1.94)	$27.86	0.18%	1.23%	0.32%	36%		$147,133
2015	$34.65	0.04	2.26	2.30	(0.01)	(7.16)	(7.17)	$29.78	8.78%	1.22%	0.10%	49%		$290,077
2014	$32.45	0.03	4.13	4.16	(0.04)	(1.92)	(1.96)	$34.65	13.53%	1.22%	0.07%	103%		$718,640
2013	$27.00	0.13	6.42	6.55	(0.23)	(0.87)	(1.10)	$32.45	25.14%	1.22%	0.46%	67%		$817,166
C Class
2017	$26.97	(0.21)	7.20	6.99	—	(1.29)	(1.29)	$32.67	26.99%	1.98%	(0.74)%	48%		$9,962
2016	$29.08	(0.11)	(0.09)	(0.20)	—	(1.91)	(1.91)	$26.97	(0.58)%	1.98%	(0.43)%	36%		$9,379
2015	$34.20	(0.19)	2.23	2.04	—	(7.16)	(7.16)	$29.08	7.95%	1.97%	(0.65)%	49%		$11,713
2014	$32.24	(0.22)	4.10	3.88	—	(1.92)	(1.92)	$34.20	12.71%	1.97%	(0.68)%	103%		$13,413
2013	$26.98	(0.08)	6.38	6.30	(0.17)	(0.87)	(1.04)	$32.24	24.16%	1.97%	(0.29)%	67%		$14,489
R Class
2017	$27.35	(0.07)	7.32	7.25	(0.02)	(1.29)	(1.31)	$33.29	27.62%	1.48%	(0.24)%	48%		$104,368
2016	$29.31	0.02	(0.07)	(0.05)	—	(1.91)	(1.91)	$27.35	(0.06)%	1.48%	0.07%	36%		$96,415
2015	$34.28	(0.04)	2.23	2.19	—	(7.16)	(7.16)	$29.31	8.50%	1.47%	(0.15)%	49%		$114,672
2014	$32.16	(0.06)	4.10	4.04	—	(1.92)	(1.92)	$34.28	13.26%	1.47%	(0.18)%	103%		$142,845
2013	$26.82	0.06	6.36	6.42	(0.21)	(0.87)	(1.08)	$32.16	24.80%	1.47%	0.21%	67%		$145,337



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
R5 Class
2017 ⁽⁴⁾	$30.95	0.05	4.53	4.58	—	—	—	$35.53	14.80%	0.78% ⁽⁵⁾	0.27% ⁽⁵⁾	48% ⁽⁶⁾		$6
R6 Class
2017	$29.11	0.18	7.80	7.98	(0.27)	(1.29)	(1.56)	$35.53	28.71%	0.63%	0.61%	48%		$963,039
2016	$31.04	0.26	(0.07)	0.19	(0.21)	(1.91)	(2.12)	$29.11	0.76%	0.63%	0.92%	36%		$390,201
2015	$35.84	0.23	2.35	2.58	(0.22)	(7.16)	(7.38)	$31.04	9.46%	0.62%	0.70%	49%		$333,333
2014	$33.51	0.18	4.31	4.49	(0.24)	(1.92)	(2.16)	$35.84	14.20%	0.62%	0.67%	103%		$566,919
2013 ⁽⁷⁾	$31.22	0.05	2.24	2.29	—	—	—	$33.51	7.34%	0.62% ⁽⁵⁾	0.64% ⁽⁵⁾	67% ⁽⁸⁾		$15,219



Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	April 10, 2017 (commencement of sale) through October 31, 2017.


(5)	Annualized.


(6)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.


(7)	July 26, 2013 (commencement of sale) through October 31, 2013.


(8)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2013.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds, provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91781 1803

March 1, 2018

American Century Investments

Prospectus

Heritage Fund

Investor Class ( TWHIX )

I Class ( ATHIX )

Y Class ( ATHYX )

A Class ( ATHAX )

C Class ( AHGCX )

R Class ( ATHWX )

R5 Class ( ATHGX )

R6 Class ( ATHDX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	5
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
Share Price and Distributions	21
Taxes	23
Multiple Class Information	25
Financial Highlights	26
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 13 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	Y	A	C	R	R5	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	None	5.75%	None	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None	None²	1.00%	None	None	None
Maximum Annual Account Maintenance Fee(waived if eligible investments total at least $10,000)	$25	None	None	None	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	Y	A	C	R	R5	R6
Management Fee	1.00%	0.80%	0.65%	1.00%	1.00%	1.00%	0.80%	0.65%
Distribution and Service (12b-1) Fees	None	None	None	0.25%	1.00%	0.50%	None	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.01%	0.81%	0.66%	1.26%	2.01%	1.51%	0.81%	0.66%

¹ Prior to April 10, 2017, this class was referred to as the Institutional Class.

² Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor, I or Y Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$103	$322	$559	$1,236
I Class	$83	$259	$450	$1,002
Y Class	$68	$212	$368	$823
A Class	$696	$952	$1,228	$2,010
C Class	$204	$632	$1,084	$2,334
R Class	$154	$478	$824	$1,800
R5 Class	$83	$259	$450	$1,002
R6 Class	$68	$212	$368	$823

2 #

Portfolio Turnover

Principal Investment Strategies

The portfolio managers look for stocks of medium-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that durable franchises in a growing industry can sustain above average earnings growth. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies with attractive returns on invested capital that are demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

The fund will usually purchase common stocks of companies that are medium-sized at the time of purchase, but it will purchase securities of smaller- and larger-sized companies as well.

Also, although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies when these securities meet the portfolio managers’ standards of selection.

The fund may write covered calls on a portion of the fund’s holdings in common stock when the portfolio mangers believe call premiums are attractive relative to the price of the underlying security.

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Mid Cap Stocks – The fund invests in mid-sized and smaller companies, which may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.


•	Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk – Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.

•

Redemption Risk –The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

3 #

necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

Calendar Year Total Returns

Highest Performance Quarter ( 3Q 2010 ): 18.36% Lowest Performance Quarter ( 4Q 2008 ): -26.63%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	21.85%	12.67%	6.66%	—	11/10/1987
Return After Taxes on Distributions	19.36%	9.70%	5.19%	—	11/10/1987
Return After Taxes on Distributions and Sale of Fund Shares	14.41%	9.66%	5.14%	—	11/10/1987
I Class Return Before Taxes	22.08%	12.89%	6.87%	—	06/16/1997
Y Class ¹ Return Before Taxes	22.32%	—	—	10.42%	04/10/2017
A Class Return Before Taxes	14.54%	11.06%	5.76%	—	07/11/1997
C Class Return Before Taxes	20.60%	11.54%	5.60%	—	06/26/2001
R Class Return Before Taxes	21.20%	12.11%	6.13%	—	09/28/2007
R5 Class ² Return Before Taxes	22.08%	12.89%	6.87%	—	04/10/2017
R6 Class Return Before Taxes	22.27%	—	—	10.41%	07/26/2013
Russell Midcap ^® Growth Index (reflects no deduction for fees, expenses or taxes)	25.27%	15.30%	9.09%	—	—

¹ Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date.

² Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class.

The after-tax returns are shown only for Investor Class shares . After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.

4 #

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Rob Brookby , Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2018.

Nalin Yogasundram , Portfolio Manager, has been a member of the team that manages the fund since 2013.

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

There is no minimum initial investment amount for Y, R5 or R6 Class shares.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the Y and R6 Classes. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers look for stocks of medium-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers use a bottom-up approach to stock selection. This means that the managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that durable franchises in a growing industry can sustain above average earnings growth. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies with attractive returns on invested capital that are demonstrating business improvement.

Using a variety of analytical research tools, the portfolio managers track financial information for thousands of individual companies to identify and evaluate trends in earnings, revenues and other business fundamentals. The portfolio managers’ principal analytical technique involves the identification of companies with attractive returns on invested capital that are demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

The fund will usually purchase common stocks of companies that are medium-sized at the time of purchase, but it will purchase securities of smaller- and larger-sized companies as well. When determining the size of a company, the portfolio managers may consider, among other factors, the capitalization of the company and the amount of revenues as well as other information they obtain about the company.

The fund may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. A higher portfolio turnover rate may indicate higher transaction costs and may affect the fund’s performance. Higher portfolio turnover also may result in the realization and distribution of capital gains, including short-term capital gains

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Growth stocks are typically priced higher than other stocks, in relation to earnings and other measures, because investors believe they have more growth potential. If the portfolio managers’ assessment of a company’s prospects for earnings growth or how other investors will value the company’s earnings growth is incorrect, the price of the stock may fail to reach the value the portfolio managers have placed on it. Growth stock prices tend to fluctuate more dramatically than the overall stock market.

The fund generally invests in medium-sized companies, which may be more volatile and subject to greater short-term risk. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than securities of larger companies. In addition, smaller companies may have less publicly available information.

6 #

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating the fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than the Y and R6 Classes, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	Y Class	A Class	C Class	R Class	R5 Class	R6 Class
Heritage	1.00%	0.80%	N/A ¹	1.00%	1.00%	1.00%	N/A ¹	0.65%

¹ The Y and R5 Classes had not operated for a full fiscal year as of October 31, 2017 . The management fee is 0.65% for the Y Class and 0.80% for the R5 Class.

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Rob Brookby

Mr. Brookby, Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since joining American Century Investments in 2018. From 2008 to 2018, he was a portfolio manager for Putnam Investments. He has a bachelor of arts degree in economics from Northwestern University and an MBA from Harvard University.

8 #

Nalin Yogasundram

Mr. Yogasundram, Portfolio Manager, has been a member of the team that manages the fund since joining American Century Investments in 2013 as an investment analyst and became a portfolio manager in 2016. Prior to joining American Century, he was an equity analyst for T. Rowe Price. He has bachelor’s degree from the University of Arkansas, a master’s degree from Southern Methodist University and an MBA from The Wharton School of the University of Pennsylvania.

Fundamental Investment Policies

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments’ bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares* : Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

I Class shares are available for purchase without sales charges or commissions by endowments, foundations, large institutional investors and financial intermediaries. Employer-sponsored retirement plans may not invest in I Class shares, except that plans in the I Class prior to April 10, 2017 may make additional purchases.

Y Class

A Class

C Class

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R5 and R6 Class

12 #

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

13 #

Waivers for Certain Investors . The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

C Class

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value

14 #


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½


•	required minimum distributions from retirement accounts upon reaching age 70 ¹ ⁄2


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R, R5 and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Moving Between Share Classes and Accounts

15 #

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

Investor, I and Y Class shares may also be available on brokerage platforms of financial intermediaries that have agreements with American Century Investments to offer such shares solely when acting as a agent for the shareholder. A shareholder transacting in Investor, I or Y Class shares in these programs may be required to pay a commission and/or other forms of compensation to the broker. Shares of the fund are available in other share classes that have different fees and expenses.

See Additional Policies Affecting Your Investment for more information about investing with us.

16 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ⁽¹⁾
Employer-sponsored retirement plans ⁽²⁾	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

The I Class shares are made available for purchase by individuals and large institutional shareholders such as bank trust departments, corporations, endowments, foundations and financial advisors that meet the fund’s minimum investment requirements. Employer-sponsored retirement plans may not invest in the I Class shares, except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

Minimum Initial Investment Amounts for I Class

American Century Investments may permit an intermediary to waive the initial minimum investment per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for Y Class Shares

Minimum Initial Investment Amounts for Y Class

There is no minimum initial investment amount or subsequent investment amount for Y Class shares, but financial intermediaries may require different investment minimums.

17 #

Eligibility for R5 and R6 Class Shares

R5 and R6 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 and R6 Classes

There is no minimum initial investment amount or subsequent investment amount for R5 or R6 Class shares, but financial intermediaries or plan recordkeepers may require plans to meet different investment minimums.

Redemptions

Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order. If you sell C or, in certain cases, A Class shares, you may pay a sales charge, depending on how long you have held your shares, as described above.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

18 #

Signature Guarantees

A signature guarantee — which is different from a notarized signature — is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from

those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase; or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;

19 #


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

20 #

Share Price and Distributions

Share Price

American Century Investments will price the fund shares you purchase, exchange or redeem based on the net asset value (NAV) next determined after your order is received in good order by the fund’s transfer agent, or other financial intermediary with the authority to accept orders on the fund’s behalf. We determine the NAV of each fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally pays distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

21 #

22 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Buying a Dividend

23 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

24 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class, C Class and R Class each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% for C Class and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

American Century Investments does not pay any fees to financial intermediaries on Y or R6 Class shares.

25 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

26 #

Heritage Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data								Ratios and Supplemental Data
		Income From Investment Operations:						Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Distributions From Net Realized Gains	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$21.28	(0.03)	4.18	4.15	(1.76)	$23.67	20.77%	1.01%	(0.15)%	56%		$4,083,669
2016	$24.59	(0.05)	(0.53)	(0.58)	(2.73)	$21.28	(2.26)%	1.00%	(0.21)%	62%		$3,823,112
2015	$26.89	(0.11)	1.66	1.55	(3.85)	$24.59	7.11%	1.00%	(0.42)%	62%		$4,349,601
2014	$28.45	(0.14)	2.18	2.04	(3.60)	$26.89	8.33%	1.00%	(0.55)%	73%		$4,449,377
2013	$22.44	(0.07)	6.55	6.48	(0.47)	$28.45	29.43%	1.00%	(0.29)%	70%		$3,016,930
I Class ⁽³⁾
2017	$22.34	— ⁽⁴⁾	4.42	4.42	(1.76)	$25.00	21.01%	0.81%	0.05%	56%		$262,095
2016	$25.62	— ⁽⁴⁾	(0.55)	(0.55)	(2.73)	$22.34	(2.07)%	0.80%	(0.01)%	62%		$155,695
2015	$27.81	(0.06)	1.72	1.66	(3.85)	$25.62	7.33%	0.80%	(0.22)%	62%		$163,670
2014	$29.25	(0.09)	2.25	2.16	(3.60)	$27.81	8.53%	0.80%	(0.35)%	73%		$198,895
2013	$23.01	(0.02)	6.73	6.71	(0.47)	$29.25	29.70%	0.80%	(0.09)%	70%		$243,548
Y Class
2017 ⁽⁵⁾	$22.84	0.02	2.33	2.35	—	$25.19	10.29%	0.66% ⁽⁶⁾	0.12% ⁽⁶⁾	56% ⁽⁷⁾		$6
A Class
2017	$20.00	(0.08)	3.91	3.83	(1.76)	$22.07	20.48%	1.26%	(0.40)%	56%		$353,039
2016	$23.33	(0.09)	(0.51)	(0.60)	(2.73)	$20.00	(2.53)%	1.25%	(0.46)%	62%		$570,298
2015	$25.78	(0.16)	1.56	1.40	(3.85)	$23.33	6.88%	1.25%	(0.67)%	62%		$798,879
2014	$27.48	(0.20)	2.10	1.90	(3.60)	$25.78	8.04%	1.25%	(0.80)%	73%		$869,381
2013	$21.74	(0.13)	6.34	6.21	(0.47)	$27.48	29.13%	1.25%	(0.54)%	70%		$1,092,574
C Class
2017	$16.92	(0.19)	3.25	3.06	(1.76)	$18.22	19.58%	2.01%	(1.15)%	56%		$88,629
2016	$20.31	(0.21)	(0.45)	(0.66)	(2.73)	$16.92	(3.29)%	2.00%	(1.21)%	62%		$103,292
2015	$23.10	(0.30)	1.36	1.06	(3.85)	$20.31	6.09%	2.00%	(1.42)%	62%		$134,096
2014	$25.16	(0.35)	1.89	1.54	(3.60)	$23.10	7.25%	2.00%	(1.55)%	73%		$128,522
2013	$20.09	(0.28)	5.82	5.54	(0.47)	$25.16	28.10%	2.00%	(1.29)%	70%		$139,064
R Class
2017	$20.10	(0.13)	3.92	3.79	(1.76)	$22.13	20.16%	1.51%	(0.65)%	56%		$39,033
2016	$23.48	(0.15)	(0.50)	(0.65)	(2.73)	$20.10	(2.75)%	1.50%	(0.71)%	62%		$43,875
2015	$25.97	(0.22)	1.58	1.36	(3.85)	$23.48	6.60%	1.50%	(0.92)%	62%		$53,731
2014	$27.72	(0.27)	2.12	1.85	(3.60)	$25.97	7.80%	1.50%	(1.05)%	73%		$58,426
2013	$21.99	(0.20)	6.40	6.20	(0.47)	$27.72	28.74%	1.50%	(0.79)%	70%		$54,129
R5 Class
2017 ⁽⁵⁾	$22.69	— ⁽⁴⁾	2.31	2.31	—	$25.00	10.18%	0.81% ⁽⁶⁾	(0.03)% ⁽⁶⁾	56% ⁽⁷⁾		$114

27 #



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data								Ratios and Supplemental Data
		Income From Investment Operations:						Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Distributions From Net Realized Gains	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
R6 Class
2017	$22.46	0.04	4.45	4.49	(1.76)	$25.19	21.22%	0.66%	0.20%	56%		$186,335
2016	$25.72	0.03	(0.56)	(0.53)	(2.73)	$22.46	(1.93)%	0.65%	0.14%	62%		$123,681
2015	$27.86	(0.02)	1.73	1.71	(3.85)	$25.72	7.48%	0.65%	(0.07)%	62%		$103,017
2014	$29.25	(0.07)	2.28	2.21	(3.60)	$27.86	8.72%	0.65%	(0.20)%	73%		$56,442
2013 ⁽⁸⁾	$27.22	— ⁽⁴⁾	2.03	2.03	—	$29.25	7.46%	0.65% ⁽⁶⁾	(0.07)% ⁽⁶⁾	70% ⁽⁹⁾		$74



Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	Per-share amount was less than $0.005.


(5)	April 10, 2017 (commencement of sale) through October 31, 2017.


(6)	Annualized.


(7)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.


(8)	July 26, 2013 (commencement of sale) through October 31, 2013.


(9)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2013.

28 #

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds , provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91782 1803

March 1, 2018

American Century Investments

Prospectus

NT Growth Fund

G Class (ACLTX)



The fund is available for purchase only by funds advised by American Century Investments. The fund is closed to other investors. The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	2
Principal Risks	3
Fund Performance	3
Portfolio Management	4
Purchase and Sale of Fund Shares	4
Tax Information	4
Objectives, Strategies and Risks	5
Management	7
Investing with American Century Investments	8
Share Price and Distributions	9
Taxes	10
Financial Highlights	12

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund.



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	G ¹
Management Fee	0.62%²
Distribution and Service (12b-1) Fees	None
Other Expenses	0.01%
Total Annual Fund Operating Expenses	0.63%
Fee Waiver ³	0.62%
Total Annual Fund Operating Expenses After Fee Waiver	0.01%


¹	Prior to July 31, 2017, the G Class was referred to as the Institutional Class.


²	The management fee has been restated to reflect the decrease in the management fee schedule effective July 31, 2017.


³	The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this waiver to remain in effect permanently and cannot terminate it without the approval of the Board of Directors.

Example



	1 year	3 years	5 years	10 years
G Class	$1	$3	$6	$13

Portfolio Turnover

Principal Investment Strategies

The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

2 #

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Tobacco Exclusion – The fund’s prohibition on tobacco-related investments may cause it to forego profitable investment opportunities.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.


•	Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk — Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

•

Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for G Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future.

Calendar Year Total Returns

Highest Performance Quarter ( 2Q 2009 ): 15.77% Lowest Performance Quarter ( 4Q 2008 ): -22.96%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years
G Class Return Before Taxes	30.81%	15.58%	8.83%
Return After Taxes on Distributions	27.51%	13.29%	7.60%
Return After Taxes on Distributions and Sale of Fund Shares	19.44%	11.97%	6.93%
Russell 1000 ^® Growth Index (reflects no deduction for fees, expenses or taxes)	30.21%	17.32%	9.99%

3 #

The after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Gregory J. Woodhams , CFA, Co-CIO, Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2006.

Justin M. Brown, CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2006.

Purchase and Sale of Fund Shares

The fund is available for purchase only by funds advised by American Century Investments and other American Century advisory clients that are subject to a contractual fee for investment management services. The fund does not have a minimum purchase amount.

Tax Information

4 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers track financial information for individual companies to identify and evaluate trends in earnings, revenues and other business fundamentals. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies demonstrating business improvement. Analytical indicators helping to identify signs of business improvement could include accelerating earnings or revenue growth rates, increasing cash flows, or other indications of the relative strength of a company’s business. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

The fund is not permitted to invest in securities issued by companies assigned the Global Industry Classification Standard (GICS) or the Bloomberg Industry Classification Standard (BICS) for the tobacco industry. If the issuer of a security purchased by the fund is subsequently found to be classified in the tobacco industry (due to acquisition, merger or otherwise), the fund will sell the security as soon as reasonably possible.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Growth stocks are typically priced higher than other stocks, in relation to earnings and other measures, because investors believe they have more growth potential. This potential may or may not be realized. If the portfolio managers’ assessment of a company’s prospects for earnings growth or how other investors will value the company’s earnings growth is incorrect, the price of the company’s stock may fall or fail to reach the value the portfolio managers have placed on it. Growth stock prices tend to fluctuate more dramatically than the overall stock market.

The fund is not permitted to invest in certain tobacco-related securities. As a result, the fund may forego a profitable investment opportunity or sell a security when it may be disadvantageous to do so.

5 #

similar to those that apply in the United States. These factors make investing in foreign securities generally riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent the fund invests in foreign securities, the overall risk of that fund could be affected.

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. The fund could experience a loss when selling securities, particularly if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining pricing for the securities sold or when the securities the fund wishes to sell are illiquid. Selling securities to meet such redemption requests also may increase transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets. Although the advisor seeks to minimize the impact of such transactions where possible, the fund’s performance may be adversely affected.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

6 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

The fund is subject to a contractual management fee that the advisor waives in its entirety. However, the advisor does receive a management fee from funds or client advisory accounts that invest in the fund.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017 ¹	G Class
NT Growth	0.55%


¹	Prior to July 31, 2017, the advisor did not waive the fund’s contractual management fee in its entirety.

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Gregory J. Woodhams

Mr. Woodhams, Co-CIO , Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2006. He joined American Century Investments in 1997 and became a portfolio manager in 1998. He has a bachelor’s degree in economics from Rice University and an M.A. in economics from the University of Wisconsin. He is a CFA charterholder.

Justin M. Brown

Mr. Brown, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2006. He joined American Century Investments in 2000 as an investment analyst and became a portfolio manager in 2006. He has a bachelor’s degree in business administration and finance from Texas Christian University. He is a CFA charterholder.

Fundamental Investment Policies

7 #

Investing with American Century Investments

Purchase of Fund Shares

The fund’s shares are available for purchase only by funds advised by American Century Investments and other American Century advisory clients that are subject to a contractual fee for investment management services. Transactions involving fund shares are effected using systems and procedures internal to American Century Investments. The fund does not have a minimum purchase amount.

Redemptions

Your redemption proceeds will be calculated using the net asset value (NAV) next determined after we receive your transaction request in good order. Generally, we expect to remit redemption proceeds one business day after we process your transaction.

Under normal market conditions, the fund generally meets redemption requests through its holdings of cash or cash equivalents or by selling portfolio securities. However, we reserve the right to delay delivery of redemption proceeds up to seven days. In addition, we reserve the right to honor certain redemptions with securities, rather than cash, as described in the next section. Additionally, the fund may consider interfund lending to meet redemption requests. The fund is more likely to use these other methods to meet large redemption requests or during times of market stress.

Special Requirements for Large Redemptions

Frequent Trading Practices

Because the fund is available for purchase only by funds advised by American Century Investments, we have determined that it is not necessary to monitor trading activity in the fund. Purchases and redemptions of shares by funds of funds are not subject to the frequent trading limitations under American Century Investments’ abusive trading policies and procedures.

Right to Change Policies

8 #

Share Price and Distributions

S h are Price

American Century Investments will price the fund shares you purchase, exchange or redeem based on the net asset value (NAV) next determined after your order is received in good order by the fund’s transfer agent, or other financial intermediary with the authority to accept orders on the fund’s behalf. We determine the NAV of each fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

The fund may only be purchased by funds advised by American Century Investments. We generally reinvest all distributions unless otherwise elected to receive in cash.

9 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Your redemptions—including exchanges to other American Century Investments funds—are subject to capital gains tax. Short-term capital gains are gains on fund shares you held for 12 months or less. Long-term capital gains are gains on fund shares you held for more than 12 months. If your shares decrease in value, their sale or exchange will result in a long-term or short-term capital loss. However, you should note that loss realized upon the sale or exchange of shares held for six months or less will be treated as a long-term capital loss to the extent of any distribution of long-term capital gain to you with respect to those shares. If a loss is realized on the redemption of fund shares, the reinvestment in additional fund shares within 30 days before or after the redemption may be subject to the wash sale rules of the Internal Revenue Code. This may result in a postponement of the recognition of such loss for federal income tax purposes.

Buying a Dividend

10 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

11 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

12 #

NT Growth Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
G Class ⁽³⁾
2017	$14.62	0.11	4.00	4.11	(0.12)	(0.23)	(0.35)	$18.38	28.64%	0.56% ⁽⁴⁾	0.67% ⁽⁴⁾	64%		$1,364,741
2016	$15.57	0.11	(0.06)	0.05	(0.07)	(0.93)	(1.00)	$14.62	0.49%	0.78%	0.74%	60%		$1,104,817
2015	$16.82	0.08	1.17	1.25	(0.08)	(2.42)	(2.50)	$15.57	8.97%	0.77%	0.52%	82%		$1,051,077
2014	$15.42	0.08	2.02	2.10	(0.09)	(0.61)	(0.70)	$16.82	14.17%	0.77%	0.50%	119%		$1,234,784
2013	$12.72	0.12	3.08	3.20	(0.10)	(0.40)	(0.50)	$15.42	26.05%	0.77%	0.85%	77%		$995,575

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day. Total returns for periods less than one year are not annualized.


(3)	Prior to July 31, 2017, the G Class was referred to as the Institutional Class.


(4)	The ratio of operating expenses to average net assets before expense waiver and the ratio of net investment income (loss) to average net assets before expense waiver was 0.74% and 0.49%, respectively.

Notes

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)

American Century Investments

americancentury.com

P.O. Box 419385

Kansas City, Missouri 64141-6385

1-800-345-3533 or 816-531-5575

Investment Company Act File No. 811-00816

CL-PRS-91108 1803

March 1, 2018

American Century Investments

Prospectus

NT Heritage Fund

G Class (ACLWX)



The fund is available for purchase only by funds advised by American Century Investments. The fund is closed to other investors. The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	2
Principal Risks	3
Fund Performance	3
Portfolio Management	4
Purchase and Sale of Fund Shares	4
Tax Information	4
Objectives, Strategies and Risks	5
Management	7
Investing with American Century Investments	8
Share Price and Distributions	9
Taxes	11
Financial Highlights	13

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund.



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	G ¹
Management Fee	0.65%²
Distribution and Service (12b-1) Fees	None
Other Expenses	0.01%
Total Annual Operating Expenses	0.66%
Fee Waiver ³	0.65%
Total Annual Fund Operating Expenses After Fee Waiver	0.01%

¹ Prior to July 31, 2017, the G Class was referred to as the Institutional Class.

² The management fee has been restated to reflect the decrease in the management fee schedule effective July 31, 2017.

³ The advisor has agreed to waive the G Class’s management fee in its entirety. The advisor expects this waiver to remain in effect permanently and cannot terminate it without approval of the Board of Directors.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example assumes that the fund’s operating expenses remain the same except this reflects the rate and duration of any fee waivers noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
G Class	$1	$3	$6	$13

Portfolio Turnover

Principal Investment Strategies

The fund will usually purchase common stocks of companies that are medium-sized at the time of purchase, but it will purchase securities of smaller- and larger-sized companies as well.

2 #

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Mid Cap Stocks – The fund invests in mid-sized and smaller companies, which may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.


•	Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Tobacco Exclusion – The fund’s prohibition on tobacco-related investments may cause it to forego profitable investment opportunities.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk – Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.

•

Redemption Risk –The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

3 #

Calendar Year Total Returns

Highest Performance Quarter ( 1Q 2012 ): 16.67% Lowest Performance Quarter ( 4Q 2008 ): -25.63%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years
G Class Return Before Taxes	22.44%	12.81%	4.46%
Return After Taxes on Distributions	20.44%	10.92%	3.56%
Return After Taxes on Distributions and Sale of Fund Shares	14.35%	9.89%	3.38%
Russell Midcap® Growth Index (reflects no deduction for fees, expenses or taxes)	25.27%	15.30%	9.09%

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Rob Brookby , Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2018.

Nalin Yogasundram , Portfolio Manager, has been a member of the team that manages the fund since 2013.

Purchase and Sale of Fund Shares

Tax Information

4 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers look for stocks of medium-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers use a bottom-up approach to stock selection. This means that the managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that durable franchises in a growing industry can sustain above average earnings growth. Under normal market conditions, the fund’s portfolio will primarily consist of securities of companies with attractive returns on invested capital that are demonstrating business improvement.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

The fund generally invests in medium sized companies, which may be more volatile and subject to greater short-term risk. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than securities of larger companies. In addition, smaller companies may have less publicly available information.

5 #

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. The fund could experience a loss when selling securities, particularly if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining pricing for the securities sold or when the securities the fund wishes to sell are illiquid. Selling securities to meet such redemption requests also may increase transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets. Although the advisor seeks to minimize the impact of such transactions where possible, the fund’s performance may be adversely affected.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

6 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017 ¹	G Class
NT Heritage	0.57%

¹ Prior to July 31, 2017, the advisor did not waive the fund’s contractual fee in its entirety.

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Rob Brookby

Nalin Yogasundram

Fundamental Investment Policies

7 #

Investing with American Century Investments

Purchase of Fund Shares

The fund’s shares are available for purchase only by funds advised by American Century Investments and other American Century advisory clients that are subject to a contractual fee for investment services. Transactions involving fund shares are effected using systems and procedures internal to American Century Investments. The fund does not have a minimum purchase amount.

Redemptions

Special Requirements for Large Redemptions

Frequent Trading Practices

Right to Change Policies

8 #

Share Price and Distributions

Share Price

American Century Investments will price the fund shares you purchase, exchange or redeem based on the net asset value (NAV) next determined after your order is received in good order by the fund’s transfer agent, or other financial intermediary with the authority to accept orders on the fund’s behalf. We determine the NAV of each fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last current reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding closing values of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that is earlier. That value is then converted to U.S. dollars at the prevailing foreign exchange rate. Securities listed on the NASDAQ National Market System (Nasdaq) are valued at the Nasdaq Official Closing Price (NOCP), as determined by Nasdaq, or lacking an NOCP, at the last current reported sale price as of the time of valuation. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Securities and other assets quoted in foreign currencies are valued in U.S. dollars based on the prevailing exchange rates on that day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a “regulated investment company.” Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally pays distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

9 #

The fund may only be purchased by funds advised by American Century Investments. We generally reinvest all distributions unless otherwise elected to receive in cash.

10 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Buying a Dividend

11 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

12 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

13 #

NT Heritage Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
G Class ⁽³⁾
2017	$12.31	0.04	2.50	2.54	—	(0.44)	(0.44)	$14.41	21.29%	0.58% ⁽⁴⁾	0.27% ⁽⁴⁾	67%		$822,910
2016	$13.65	— ⁽⁵⁾	(0.28)	(0.28)	—	(1.06)	(1.06)	$12.31	(2.01)%	0.80%	(0.02)%	73%		$649,951
2015	$13.37	(0.03)	0.93	0.90	—	(0.62)	(0.62)	$13.65	7.20%	0.80%	(0.22)%	83%		$609,841
2014	$13.81	(0.04)	1.08	1.04	—	(1.48)	(1.48)	$13.37	8.53%	0.80%	(0.31)%	76%		$572,085
2013	$10.61	(0.01)	3.23	3.22	(0.02)	—	(0.02)	$13.81	30.38%	0.80%	(0.10)%	113%		$459,877

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day. Total returns for periods less than one year are not annualized.


(3)	Prior to July 31, 2017, the G Class was referred to as the Institutional Class.


(4)	The ratio of operating expenses to average net assets before expense waiver and the ratio of net investment income (loss) to average net assets before expense waiver was 0.76% and 0.09%, respectively.


(5)	Per-share amount was less than $0.005.

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)

American Century Investments

americancentury.com

P.O. Box 419385

Kansas City, Missouri 64141-6385

1-800-345-3533 or 816-531-5575

Investment Company Act File No. 811-00816

CL-PRS-91110 1803

March 1, 2018

American Century Investments

Prospectus

Select Fund

Investor Class ( TWCIX )

I Class ( TWSIX )

Y Class ( ASLWX )

A Class ( TWCAX )

C Class ( ACSLX )

R Class ( ASERX )

R5 Class ( ASLGX )

R6 Class ( ASDEX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	4
Portfolio Management	5
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
Share Price and Distributions	21
Taxes	23
Multiple Class Information	25
Financial Highlights	26
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 13 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	Y	A	C	R	R5	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	None	5.75%	None	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None	None²	1.00%	None	None	None
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None	None	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	Y	A	C	R	R5	R6
Management Fee	0.99%	0.79%	0.64%	0.99%	0.99%	0.99%	0.79%	0.64%
Distribution and Service (12b-1) Fees	None	None	None	0.25%	1.00%	0.50%	None	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.00%	0.80%	0.65%	1.25%	2.00%	1.50%	0.80%	0.65%
Fee Waiver ³	0.02%	0.02%	0.02%	0.02%	0.02%	0.02%	0.02%	0.02%
Total Annual Fund Operating Expenses After Fee Waiver	0.98%	0.78%	0.63%	1.23%	1.98%	1.48%	0.78%	0.63%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.


³	The advisor has agreed to waive 0.02 percentage points of the fund’s management fee. The advisor expects this waiver to continue until February 28, 2019 and cannot terminate it prior to such date without the approval of the Board of Directors.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods and that you earn a 5% return each year. The example also assumes the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. You may be required to pay brokerage commissions on your purchases of Investor, I or Y Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

2 #



	1 year	3 years	5 years	10 years
Investor Class	$100	$317	$551	$1,223
I Class	$80	$254	$443	$988
Y Class	$65	$206	$361	$809
A Class	$693	$947	$1,221	$1,997
C Class	$201	$627	$1,077	$2,322
R Class	$151	$473	$817	$1,788
R5 Class	$80	$254	$443	$988
R6 Class	$65	$206	$361	$809

Portfolio Turnover

Principal Investment Strategies

The portfolio managers look for stocks of companies they believe will increase in value over time. The portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.

The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the portfolio managers seek securities of companies whose earnings or revenues are not only growing, but growing at an accelerated pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. Among other variables, the portfolio managers will consider a company’s valuation and profitability. Other analytical techniques include evaluating stock price momentum, as well as identifying additional signs of business improvement, such as increasing cash flows, or other indications of the relative strength of a company’s business. In addition to accelerating growth and other signs of business improvement, the fund also considers companies demonstrating price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk – Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

3 #

Fund Performance

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

Calendar Year Total Returns

Highest Performance Quarter ( 1Q 2012 ): 17.25% Lowest Performance Quarter ( 4Q 2008 ): -21.82%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	28.93%	16.07%	8.61%	—	06/30/1971
Return After Taxes on Distributions	27.13%	14.63%	7.89%	—	06/30/1971
Return After Taxes on Distributions and Sale of Fund Shares	17.88%	12.74%	6.91%	—	06/30/1971
I Class Return Before Taxes	29.16%	16.31%	8.83%	—	03/13/1997
Y Class ¹ Return Before Taxes	29.35%	—	—	15.44%	04/10/2017
A Class Return Before Taxes	21.19%	14.42%	7.70%	—	08/08/1997
C Class Return Before Taxes	27.63%	14.92%	7.53%	—	01/31/2003
R Class Return Before Taxes	28.28%	15.49%	8.07%	—	07/29/2005
R5 Class ² Return Before Taxes	29.16%	16.31%	8.83%	—	04/10/2017
R6 Class Return Before Taxes	29.36%	—	—	15.44%	07/26/2013
Russell 1000 ^® Growth Index (reflects no deduction for fees, expenses or taxes)	30.21%	17.32%	9.99%	—	—


¹	Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date.


²	Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares.

4 #

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Keith Lee, CFA, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2001.

Michael Li , Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2003.

Christopher J. Krantz , CFA, Portfolio Manager, has been a member of the team that manages the fund since 2006.

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

There is no minimum initial investment amount for Y, R5 or R6 Class shares.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the Y and R6 Classes. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers look for stocks of larger-sized companies they believe will increase in value over time. The portfolio managers use a bottom-up approach to stock selection. This means that the managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.

Using a variety of analytical research tools, the portfolio managers track financial information for individual companies to identify and evaluate trends in earnings, revenues and other business fundamentals. Under normal market conditions, the portfolio managers seek securities of companies whose earnings or revenues are not only growing, but growing at an accelerated pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. Among other variables, the portfolio managers will consider a company’s valuation and profitability. Other analytical techniques include evaluating stock price momentum, as well as identifying additional signs of business improvement, such as increasing cash flows, or other indications of the relative strength of a company’s business. In addition to accelerating growth and other signs of business improvement, the fund also considers companies demonstrating price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies. Foreign investment involves additional risks, including fluctuations in currency exchange rates, less stable political and economic structures, reduced availability of public information, and lack of uniform financial reporting and regulatory practices similar to those that apply in the United States. These factors make investing in foreign securities generally riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent a fund invests in foreign securities, the overall risk of that fund could be affected.

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

Market performance tends to be cyclical, and, in the various cycles, certain investment styles may fall in and out of favor. If the market is not favoring the fund’s growth style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.

6 #

The value of a fund’s shares depends on the value of the stocks and other securities it owns. The value of the individual securities a fund owns will go up and down depending on the performance of the companies that issued them, general market and economic conditions, and investor confidence.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than the Y and R6 Classes, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.

The rate of the fee is determined by applying a formula that takes into account the assets of the fund as well as certain assets, if any, of other clients of the advisor outside the American Century Investments fund family (such as subadvised funds and separate accounts) that use very similar investment teams and strategies (strategy assets). The use of strategy assets, rather than fund assets alone, in calculating the fund’s fee rate could allow the fund to realize scheduled cost savings more quickly. However, it is possible that the fund’s strategy assets will not include assets of other client accounts or that any such assets may not be sufficient to result in a lower fee rate.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	Y Class	A Class	C Class	R Class	R5 Class	R6 Class
Select	0.98%	0.78%	N/A ¹	0.98%	0.98%	0.98%	N/A ¹	0.63%

¹ The Y and R5 Classes had not operated for a full fiscal year as of October 31, 2017 . The classes will pay the advisor a unified management fee calculated using the following schedules, less any applicable fee waivers.



Class	Percentage of Strategy Assets
Y	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion

8 #

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Keith Lee

Mr. Lee, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2001. He initially joined American Century Investments in 1998 and rejoined in 2001. He became a portfolio manager in 2003. He has a bachelor of science degree in industrial engineering from Columbia University. He is a CFA charterholder.

Michael Li

Dr. Li, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2003. He joined American Century Investments in 2002 as an investment analyst and became a portfolio manager in 2006. Before joining American Century Investments, he attended The Wharton School at the University of Pennsylvania, where he obtained his MBA. He also has a bachelor of science degree from the University of Science and Technology of China and a Ph.D. from the University of Michigan.

Christopher J. Krantz

Mr. Krantz, Portfolio Manager, has been a member of the team that manages the fund since joining American Century Investments in 2006 as an analyst. He became a portfolio manager in 2013. He has a bachelor of science degree in business from Indiana University and an MBA, with a concentration in finance, from the University of Texas McCombs School of Business. He is a CFA charterholder.

Fundamental Investment Policies

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares*: Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

Y Class

A Class

C Class

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R5 and R6 Class

12 #

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class

Account Aggregation. Investments made by you and your immediate family may be aggregated at each account’s current market value if made for your own account(s) and/or certain other accounts, such as:


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

Rights of Accumulation. You may take into account the current value of your existing holdings, less commissionable shares in the money market funds, in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

13 #

Waivers for Certain Investors. The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•

Certain group employer-sponsored retirement plans, where plan level or omnibus accounts are held with the fund, or shares are purchased by certain retirement plans that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers. For purposes of this waiver, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. However, SEP IRA, SIMPLE IRA or SARSEP retirement plans that (i) held shares of an A Class fund prior to March 1, 2009 that received sales charge waivers or (ii) held shares of an Advisor Class fund that was renamed A Class on March 1, 2010, may permit additional purchases by new and existing participants in A Class shares without an initial sales charge. Refer to Buying and Selling Fund Shares in the statement of additional information


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However, if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

C Class

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for the A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value for A and C Class shares

14 #


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs


•	distributions from IRAs due to attainment of age 59½ for A Class shares and for C Class shares


•	required minimum distributions from retirement accounts upon reaching age 70½


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R, R5 and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century Investments does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Moving Between Share Classes and Accounts

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies

15 #


•	fund choices


•	cutoff time for investments


•	trading restrictions

See Additional Policies Affecting Your Investment for more information about investing with us.

16 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

Minimum Initial Investment Amounts for I Class

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for Y Class Shares

Minimum Initial Investment Amounts for Y Class

There is no minimum initial investment amount or subsequent investment amount for Y Class shares, but financial intermediaries may require different investment minimums.

17 #

Eligibility for R5 and R6 Class Shares

R5 and R6 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 and R6 Classes

Redemptions

Generally, we expect to remit your redemption proceeds to you one business day after we process your transaction. However, we reserve the right to delay delivery of redemption proceeds for up to seven days. For example, each time you make an investment with American Century Investments, there is a seven-day holding period before we will release redemption proceeds from those shares, unless you provide us with satisfactory proof that your purchase funds have cleared. Investments by wire generally require only a one-day holding period. If you change your address, we may require that any redemption request made within seven days be submitted in writing and be signed by all authorized signers with their signatures guaranteed. We may also require a signature guarantee for redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Under normal market conditions, the fund generally meets redemption requests through its holdings of cash or cash equivalents or by selling portfolio securities. However we reserve the right to honor certain redemptions with securities, rather than cash, as described in the next section. Additionally, the fund may consider interfund lending to meet redemption requests. The fund is more likely to use these other methods to meet large redemption requests or during times of market stress.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

18 #

Signature Guarantees

A signature guarantee—which is different from a notarized signature—is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase, or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;

19 #


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

20 #

Share Price and Distributions

Share Price



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

21 #

22 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions

Fund distributions may consist of income, such as dividends and interest earned by the fund from its investments, or capital gains generated by the fund from the sale of its investment securities. Distributions of income are taxed as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of the fund, in which case distributions of income are taxed at the same rates as long-term capital gains.



	Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Buying a Dividend

23 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

24 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class, C Class and R Class each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% for C Class, and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the funds over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

American Century Investments does not pay any fees to financial intermediaries on Y or R6 Class shares.

25 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

26 #

Select Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Operating Expenses (before expense waiver)	Net Investment Income (Loss)	Net Investment Income (Loss) (before expense waiver)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$58.32	0.21	15.59	15.80	(0.22)	(1.98)	(2.20)	$71.92	27.93%	0.99%	1.00%	0.33%	0.32%	19%		$2,753,729
2016	$61.57	0.20	0.30	0.50	(0.25)	(3.50)	(3.75)	$58.32	0.98%	0.99%	0.99%	0.36%	0.36%	16%		$2,287,797
2015	$61.31	0.21	5.71	5.92	(0.24)	(5.42)	(5.66)	$61.57	10.93%	0.99%	0.99%	0.35%	0.35%	24%		$2,440,319
2014	$53.07	0.19	8.51	8.70	(0.24)	(0.22)	(0.46)	$61.31	16.50%	1.00%	1.00%	0.34%	0.34%	25%		$2,293,893
2013	$43.52	0.35	9.51	9.86	(0.31)	—	(0.31)	$53.07	22.80%	1.00%	1.00%	0.74%	0.74%	31%		$2,119,523
I Class ⁽³⁾
2017	$59.25	0.31	15.87	16.18	(0.34)	(1.98)	(2.32)	$73.11	28.20%	0.79%	0.80%	0.53%	0.52%	19%		$60,895
2016	$62.49	0.32	0.31	0.63	(0.37)	(3.50)	(3.87)	$59.25	1.19%	0.79%	0.79%	0.56%	0.56%	16%		$28,061
2015	$62.15	0.34	5.78	6.12	(0.36)	(5.42)	(5.78)	$62.49	11.16%	0.79%	0.79%	0.55%	0.55%	24%		$33,075
2014	$53.79	0.32	8.61	8.93	(0.35)	(0.22)	(0.57)	$62.15	16.74%	0.80%	0.80%	0.54%	0.54%	25%		$29,130
2013	$44.04	0.36	9.72	10.08	(0.33)	—	(0.33)	$53.79	23.05%	0.80%	0.80%	0.94%	0.94%	31%		$39,263
Y Class
2017 ⁽⁴⁾	$63.80	0.22	9.11	9.33	—	—	—	$73.13	14.62%	0.64% ⁽⁵⁾	0.65% ⁽⁵⁾	0.59% ⁽⁵⁾	0.58% ⁽⁵⁾	19% ⁽⁶⁾		$6
A Class
2017	$57.16	0.05	15.29	15.34	(0.07)	(1.98)	(2.05)	$70.45	27.63%	1.24%	1.25%	0.08%	0.07%	19%		$40,345
2016	$60.41	0.06	0.29	0.35	(0.10)	(3.50)	(3.60)	$57.16	0.73%	1.24%	1.24%	0.11%	0.11%	16%		$36,723
2015	$60.25	0.06	5.61	5.67	(0.09)	(5.42)	(5.51)	$60.41	10.67%	1.24%	1.24%	0.10%	0.10%	24%		$41,737
2014	$52.15	0.06	8.36	8.42	(0.10)	(0.22)	(0.32)	$60.25	16.21%	1.25%	1.25%	0.09%	0.09%	25%		$39,786
2013	$42.85	0.25	9.33	9.58	(0.28)	—	(0.28)	$52.15	22.48%	1.25%	1.25%	0.49%	0.49%	31%		$43,318
C Class
2017	$52.51	(0.39)	13.97	13.58	—	(1.98)	(1.98)	$64.11	26.66%	1.99%	2.00%	(0.67)%	(0.68)%	19%		$5,668
2016	$56.09	(0.33)	0.25	(0.08)	—	(3.50)	(3.50)	$52.51	(0.02)%	1.99%	1.99%	(0.64)%	(0.64)%	16%		$4,570
2015	$56.64	(0.36)	5.23	4.87	—	(5.42)	(5.42)	$56.09	9.83%	1.99%	1.99%	(0.65)%	(0.65)%	24%		$5,932
2014	$49.32	(0.34)	7.88	7.54	—	(0.22)	(0.22)	$56.64	15.34%	2.00%	2.00%	(0.66)%	(0.66)%	25%		$5,929
2013	$40.75	(0.14)	8.90	8.76	(0.19)	—	(0.19)	$49.32	21.57%	2.00%	2.00%	(0.26)%	(0.26)%	31%		$8,054
R Class
2017	$56.92	(0.11)	15.22	15.11	—	(1.98)	(1.98)	$70.05	27.30%	1.49%	1.50%	(0.17)%	(0.18)%	19%		$3,518
2016	$60.21	(0.08)	0.29	0.21	—	(3.50)	(3.50)	$56.92	0.49%	1.49%	1.49%	(0.14)%	(0.14)%	16%		$2,814
2015	$60.12	(0.09)	5.60	5.51	—	(5.42)	(5.42)	$60.21	10.38%	1.49%	1.49%	(0.15)%	(0.15)%	24%		$3,295
2014	$52.07	(0.08)	8.35	8.27	—	(0.22)	(0.22)	$60.12	15.92%	1.50%	1.50%	(0.16)%	(0.16)%	25%		$3,050
2013	$42.86	0.03	9.43	9.46	(0.25)	—	(0.25)	$52.07	22.18%	1.50%	1.50%	0.24%	0.24%	31%		$3,275



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Operating Expenses (before expense waiver)	Net Investment Income (Loss)	Net Investment Income (Loss) (before expense waiver)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
R5 Class
2017 ⁽⁴⁾	$63.83	0.17	9.10	9.27	—	—	—	$73.10	14.52%	0.79% ⁽⁵⁾	0.80% ⁽⁵⁾	0.44% ⁽⁵⁾	0.43% ⁽⁵⁾	19% ⁽⁶⁾		$6
R6 Class
2017	$59.27	0.51	15.76	16.27	(0.43)	(1.98)	(2.41)	$73.13	28.38%	0.64%	0.65%	0.68%	0.67%	19%		$1,519
2016	$62.51	0.41	0.31	0.72	(0.46)	(3.50)	(3.96)	$59.27	1.35%	0.64%	0.64%	0.71%	0.71%	16%		$7,959
2015	$62.18	0.41	5.79	6.20	(0.45)	(5.42)	(5.87)	$62.51	11.31%	0.64%	0.64%	0.70%	0.70%	24%		$9,841
2014	$53.81	0.18	8.84	9.02	(0.43)	(0.22)	(0.65)	$62.18	16.92%	0.65%	0.65%	0.69%	0.69%	25%		$7,672
2013 ⁽⁷⁾	$49.95	0.10	3.76	3.86	—	—	—	$53.81	7.73%	0.65% ⁽⁵⁾	0.65% ⁽⁵⁾	0.72% ⁽⁵⁾	0.72% ⁽⁵⁾	31% ⁽⁸⁾		$27



Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	April 10, 2017 (commencement of sale) through October 31, 2017.


(5)	Annualized.


(6)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.


(7)	July 26, 2013 (commencement of sale) through October 31, 2013.


(8)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2013.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds , provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91783 1803

March 1, 2018

American Century Investments

Prospectus

Small Cap Growth Fund

Investor Class ( ANOIX )

I Class ( ANONX )

Y Class ( ANOYX )

A Class ( ANOAX )

C Class ( ANOCX )

R Class ( ANORX )

R5 Class ( ANOGX )

R6 Class ( ANODX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	5
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
Share Price and Distributions	21
Taxes	23
Multiple Class Information	25
Financial Highlights	26
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 13 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	Y	A	C	R	R5	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	None	5.75%	None	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None	None²	1.00%	None	None	None
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None	None	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	Y	A	C	R	R5	R6
Management Fee	1.35%	1.15%	1.00%	1.35%	1.35%	1.35%	1.15%	1.00%
Distribution and Service (12b-1) Fees	None	None	None	0.25%	1.00%	0.50%	None	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.36%	1.16%	1.01%	1.61%	2.36%	1.86%	1.16%	1.01%

¹ Prior to April 10, 2017, this class was referred to as the Institutional Class.

² Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor, I or Y Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$139	$431	$745	$1,634
I Class	$118	$369	$639	$1,409
Y Class	$103	$322	$559	$1,236
A Class	$730	$1,055	$1,401	$2,375
C Class	$240	$738	$1,261	$2,692
R Class	$189	$586	$1,007	$2,177
R5 Class	$118	$369	$639	$1,409
R6 Class	$103	$322	$559	$1,236

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Portfolio Turnover

Principal Investment Strategies

Under normal market conditions, the fund will invest at least 80% of its net assets in small cap companies. The portfolio managers consider small cap companies to include those with a market capitalization that does not exceed that of the largest company in the Russell 2000 Growth Index.

The portfolio managers look for stocks of smaller-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings and revenues. The portfolio managers’ principal analytical technique involves the identification of companies with earnings and revenues that are not only growing, but growing at an accelerating pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. In addition to accelerating growth, the fund also may consider companies whose stocks demonstrate price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

Principal Risks


•	Growth Stocks – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Small Cap Stocks – The smaller companies in which the fund invests may be more volatile and subject to greater risk than larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs.


•	Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Foreign Securities – The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	IPO Risk – The fund’s performance may be affected by investments in initial public offerings.


•	Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility – The value of the fund’s shares may fluctuate significantly in the short term.

•

Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund's transaction costs or have tax consequences. To the extent that a large shareholder (including a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.


•	Principal Loss – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

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Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

Calendar Year Total Returns

Highest Performance Quarter ( 4Q 2010 ): 19.60% Lowest Performance Quarter ( 3Q 2011 ): -25.36%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	25.85%	14.71%	7.35%	—	06/01/2001
Return After Taxes on Distributions	24.67%	14.50%	7.25%	—	06/01/2001
Return After Taxes on Distributions and Sale of Fund Shares	15.54%	11.85%	5.97%	—	06/01/2001
I Class Return Before Taxes	26.08%	14.94%	7.55%	—	05/18/2007
Y Class ¹ Return Before Taxes	26.29%	—	—	11.50%	04/10/2017
A Class Return Before Taxes	18.30%	13.07%	6.45%	—	01/31/2003
C Class Return Before Taxes	24.62%	13.57%	6.27%	—	01/31/2003
R Class Return Before Taxes	25.20%	14.15%	6.81%	—	09/28/2007
R5 Class ² Return Before Taxes	26.15%	14.95%	7.55%	—	04/10/2017
R6 Class Return Before Taxes	26.29%	—	—	11.50%	07/26/2013
Russell 2000 ^® Growth Index (reflects no deduction for fees, expenses or taxes)	22.17%	15.20%	9.18%	—	—

² Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 class.

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Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Jackie Wagner , Portfolio Manager, has been a member of the team that manages the fund since 2009.

Jeff Hoernemann , CFA, Portfolio Manager, has been a member of the team that manages the fund since 2014.

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C, and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

There is no minimum initial investment amount for Y, R5 or R6 Class shares.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the Y and R6 Classes. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

Under normal market conditions, the fund will invest at least 80% of its net assets in small cap companies. The fund may change this 80% policy only upon 60 days’ prior written notice to shareholders. The portfolio managers consider small cap companies to be those that, at the time of purchase, have a market capitalization no greater than that of the largest company in the Russell 2000 Growth Index. Though market capitalization will change from time to time, as of December 31, 2017 , the market capitalization of the largest company in the Russell 2000 Growth Index was approximately $ 9.4 billion.

The portfolio managers look for stocks of smaller-sized companies they believe will increase in value over time, using an investment strategy developed by the fund’s investment advisor. In implementing this strategy, the portfolio managers use a bottom-up approach to stock selection. This means that the managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings and revenues.

Using a variety of analytical research tools, the portfolio managers track financial information for thousands of individual companies to identify and evaluate trends in earnings, revenues and other business fundamentals. The portfolio managers’ principal analytical technique involves the identification of companies with earnings and revenues that are not only growing, but growing at an accelerating pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. In addition to accelerating growth, the fund also may consider companies whose stocks demonstrate price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

In the event of exceptional market or economic conditions, the fund may, as a temporary defensive measure, invest all or a substantial portion of its assets in cash, cash-equivalent securities or short-term debt securities. To the extent a fund assumes a defensive position it will not be pursuing its objective of long-term capital growth.

If the companies in which the fund invests are successful, these companies may grow into larger-sized companies. In addition, if the portfolio managers determine that the availability of small cap companies in which to invest is not adequate to meet the fund’s investment needs, the portfolio managers may invest up to 20% of the fund’s assets in medium- and large-sized companies.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

The portfolio managers may buy a large amount of a company’s stock quickly, and often will dispose of it quickly if the company’s characteristics no longer meet the fund’s investment criteria. While the managers believe this strategy provides substantial appreciation potential over the long term, in the short term it can create a significant amount of share price volatility. This volatility can be greater than that of the average stock fund.

Because the fund generally invests in smaller companies, it may be more volatile, and subject to greater short-term risk, than funds that invest primarily in larger companies. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies. In addition, smaller companies may have less publicly available information.

6 #

The fund’s performance also may be affected by investments in initial public offerings (IPOs). The impact of IPOs on the fund’s performance depends on the strength of the IPO market and the size of the fund. IPOs may have less impact on the fund’s performance as its assets grow.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than the Y and R6 Classes, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	Y Class	A Class	C Class	R Class	R5 Class	R6 Class
Small Cap Growth	1.35%	1.15%	N/A ¹	1.35%	1.35%	1.35%	N/A ¹	1.00%

¹ The Y and R5 Classes had not operated for a full fiscal year as of October 31, 2017 . The classes will pay the advisor a unified management fee calculated using the following schedules.



Class	Percentage of Strategy Assets
Y	1.150% of the first $250 million 0.900% of the next $250 million 0.800% of the next $250 million 0.750% over $750 million
R5	1.300% of the first $250 million 1.050% of the next $250 million 0.950% of the next $250 million 0.900% over $750 million

8 #

The Fund Management Team

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Jackie Wagner

Ms. Wagner, Portfolio Manager, has been a member of the team that manages the fund since 2009. She joined American Century Investments in 2005, became an analyst in 2009 and a portfolio manager in 2015. She has a bachelor’s degree in business administration and an MBA from the University of Missouri - Kansas City.

Jeff Hoernemann

Mr. Hoernemann, Portfolio Manager, has been a member of the team that manages the fund since joining American Century in 2014 as senior investment analyst. He became a portfolio manager in 2017. Prior to joining American Century, he was a senior investment analyst at Scout Investments from 2011 to 2014. He has a bachelor’s degree from Hamline University and an MBA from the University of St. Thomas. He is a CFA charterholder.

Fundamental Investment Policies

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares* : Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

I Class shares are available for purchase without sales charges or commissions by endowments, foundations, large institutional investors and financial intermediaries. Employer-sponsored retirement plans may not invest in I Class shares, except that plans in the I Class prior to April 10, 2017 may make additional purchases.

Y Class

A Class

C Class

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R5 and R6 Class

12 #

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

13 #

Waivers for Certain Investors . The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

C Class

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value

14 #


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½


•	required minimum distributions from retirement accounts upon reaching age 70 ¹ ⁄2


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R, R5 and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Some shares are subject to a redemption fee if they are exchanged in this manner (see Redemptions under Additional Policies Affecting Your Investment ).

Moving Between Share Classes and Accounts

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include

15 #


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

See Additional Policies Affecting Your Investment for more information about investing with us.

16 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

The I Class shares are made available for purchase by individuals and large institutional shareholders such as bank trust departments, corporations, endowments, foundations and financial advisors that meet the fund’s minimum investment requirements. Employer-sponsored retirement plans may not invest in the I Class shares, except that plans invested in the I Class prior to April 10, 2017 may make additional purchases.

Minimum Initial Investment Amounts for I Class

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for Y Class Shares

Minimum Initial Investment Amounts for Y Class

There is no minimum initial investment amount or subsequent investment amount for Y Class shares, but financial intermediaries may require different investment minimums.

17 #

Eligibility for R5 and R6 Class Shares

R5 and R6 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 and R6 Class

Redemptions

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. A and C Class shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

18 #

Signature Guarantees

A signature guarantee — which is different from a notarized signature — is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from

those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase; or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;

19 #


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

20 #

Share Price and Distributions

Share Price



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day .

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally pays distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

21 #

22 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Buying a Dividend

23 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

24 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class, C Class and R Class each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% C Class and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the funds over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

American Century Investments does not pay any fees to financial intermediaries on Y or R6 Class shares.

25 #

Financial Highlights

Understanding the Financial Highlights

The table on the next page itemizes what contributed to the changes in share price during the most recently ended fiscal year. It also shows the changes in share price for this period in comparison to changes over the last five fiscal years (or a shorter period if the share class is not five years old).

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return — the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio — the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio — the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover — the percentage of the fund’s investment portfolio that is replaced during the period

26 #

Small Cap Growth Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$12.96	(0.13)	4.45	4.32	—	(0.58)	(0.58)	$16.70	33.36%	1.36%	(0.83)%	70%		$361,029
2016	$13.06	(0.10)	— ⁽³⁾	(0.10)	—	—	—	$12.96	(0.77)%	1.36%	(0.83)%	130%		$133,140
2015	$12.82	(0.13)	0.37	0.24	—	—	—	$13.06	1.87%	1.39%	(0.92)%	100%		$171,490
2014	$11.95	(0.11)	0.98	0.87	—	—	—	$12.82	7.28%	1.40%	(0.93)%	75%		$170,316
2013	$8.79	(0.05)	3.23	3.18	(0.02)	—	(0.02)	$11.95	36.23%	1.42%	(0.47)%	80%		$199,294
I Class ⁽⁴⁾
2017	$13.20	(0.09)	4.51	4.42	—	(0.58)	(0.58)	$17.04	33.51%	1.16%	(0.63)%	70%		$219,881
2016	$13.27	(0.08)	0.01	(0.07)	—	—	—	$13.20	(0.53)%	1.16%	(0.63)%	130%		$269,094
2015	$13.01	(0.10)	0.36	0.26	—	—	—	$13.27	2.00%	1.17%	(0.70)%	100%		$256,001
2014	$12.10	(0.09)	1.00	0.91	—	—	—	$13.01	7.52%	1.20%	(0.73)%	75%		$72,542
2013	$8.88	(0.02)	3.26	3.24	(0.02)	—	(0.02)	$12.10	36.61%	1.22%	(0.27)%	80%		$103,520
Y Class
2017 ⁽⁵⁾	$15.34	(0.06)	2.46	2.40	—	(0.58)	(0.58)	$17.16	15.67%	1.01% ⁽⁶⁾	(0.61)% ⁽⁶⁾	70% ⁽⁷⁾		$6
A Class
2017	$12.61	(0.16)	4.32	4.16	—	(0.58)	(0.58)	$16.19	33.02%	1.61%	(1.08)%	70%		$80,654
2016	$12.74	(0.13)	— ⁽³⁾	(0.13)	—	—	—	$12.61	(1.02)%	1.61%	(1.08)%	130%		$86,651
2015	$12.54	(0.16)	0.36	0.20	—	—	—	$12.74	1.59%	1.64%	(1.17)%	100%		$103,713
2014	$11.72	(0.14)	0.96	0.82	—	—	—	$12.54	7.00%	1.65%	(1.18)%	75%		$100,051
2013	$8.63	(0.07)	3.17	3.10	(0.01)	—	(0.01)	$11.72	36.00%	1.67%	(0.72)%	80%		$114,080
C Class
2017	$11.70	(0.25)	3.99	3.74	—	(0.58)	(0.58)	$14.86	31.99%	2.36%	(1.83)%	70%		$9,958
2016	$11.91	(0.21)	— ⁽³⁾	(0.21)	—	—	—	$11.70	(1.68)%	2.36%	(1.83)%	130%		$9,146
2015	$11.81	(0.24)	0.34	0.10	—	—	—	$11.91	0.76%	2.39%	(1.92)%	100%		$11,458
2014	$11.12	(0.22)	0.91	0.69	—	—	—	$11.81	6.21%	2.40%	(1.93)%	75%		$11,727
2013	$8.24	(0.14)	3.02	2.88	—	—	—	$11.12	34.95%	2.42%	(1.47)%	80%		$13,171
R Class
2017	$12.40	(0.19)	4.23	4.04	—	(0.58)	(0.58)	$15.86	32.61%	1.86%	(1.33)%	70%		$3,761
2016	$12.55	(0.16)	0.01	(0.15)	—	—	—	$12.40	(1.20)%	1.86%	(1.33)%	130%		$2,672
2015	$12.39	(0.19)	0.35	0.16	—	—	—	$12.55	1.29%	1.89%	(1.42)%	100%		$2,135
2014	$11.61	(0.17)	0.95	0.78	—	—	—	$12.39	6.72%	1.90%	(1.43)%	75%		$1,373
2013	$8.56	(0.10)	3.16	3.06	(0.01)	—	(0.01)	$11.61	35.73%	1.92%	(0.97)%	80%		$2,022

27 #



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
R5 Class
2017 ⁽⁵⁾	$15.26	(0.07)	2.44	2.37	—	(0.58)	(0.58)	$17.05	15.56%	1.16% ⁽⁶⁾	(0.76)% ⁽⁶⁾	70% ⁽⁷⁾		$6
R6 Class
2017	$13.26	(0.08)	4.55	4.47	—	(0.58)	(0.58)	$17.15	33.74%	1.01%	(0.48)%	70%		$28,077
2016	$13.31	(0.06)	0.01	(0.05)	—	—	—	$13.26	(0.38)%	1.01%	(0.48)%	130%		$25,992
2015	$13.03	(0.08)	0.36	0.28	—	—	—	$13.31	2.15%	1.04%	(0.57)%	100%		$22,235
2014	$12.10	(0.08)	1.01	0.93	—	—	—	$13.03	7.69%	1.07%	(0.60)%	75%		$18,447
2013 ⁽⁸⁾	$11.33	(0.02)	0.79	0.77	—	—	—	$12.10	6.80%	1.05% ⁽⁶⁾	(0.55)% ⁽⁶⁾	80% ⁽⁹⁾		$27

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Amount is less than $0.005.


(4)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(5)	April 10, 2017 (commencement of sale) through October 31, 2017.


(6)	Annualized.


(7)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.


(8)	July 26, 2013 (commencement of sale) through October 31, 2013.


(9)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2013.

28 #

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds , provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91784 1803

March 1, 2018

American Century Investments

Prospectus

Sustainable Equity Fund

Investor Class ( AFDIX )

I Class ( AFEIX )

Y Class ( AFYDX )

A Class ( AFDAX )

C Class ( AFDCX )

R Class ( AFDRX )

R5 Class ( AFDGX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	4
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
Share Price and Distributions	21
Taxes	23
Multiple Class Information	25
Financial Highlights	26
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth. Income is a secondary objective.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 13 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	Y	A	C	R	R5
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	None	5.75%	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None	None²	1.00%	None	None
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	Y	A	C	R	R5
Management Fee	0.99%	0.79%	0.64%	0.99%	0.99%	0.99%	0.79%
Distribution and Service (12b-1) Fees	None	None	None	0.25%	1.00%	0.50%	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	1.00%	0.80%	0.65%	1.25%	2.00%	1.50%	0.80%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor, I or Y Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$102	$319	$553	$1,225
I Class	$82	$256	$445	$990
Y Class	$67	$208	$363	$811
A Class	$695	$949	$1,223	$1,999
C Class	$203	$628	$1,079	$2,324
R Class	$153	$475	$819	$1,789
R5 Class	$82	$256	$445	$990

Portfolio Turnover

2 #

Principal Investment Strategies

The fund will generally invest in larger-sized companies using a quantitative model that combines fundamental measures of a stock’s value and growth potential. To measure value, the managers may use ratios of stock price-to-earnings and stock price-to-cash flow, among others. To measure growth, the managers may use the rate of growth of a company’s earnings and cash flow and changes in its earnings estimates, as well as other factors. The model also considers price momentum. The portfolio managers also take environmental, social and governance ("ESG") factors into account in making investment decisions. The portfolio managers attempt to build a portfolio of stocks that provides better returns than, and a dividend yield comparable to, the S&P 500® Index, without taking on significant additional risk.

Under normal market conditions, the fund will invest at least 80% of its net assets in equity securities.

When determining whether to sell a security, the portfolio managers consider among other things, a security’s price, whether a security’s risk parameters outweigh its return opportunities, general market conditions, whether the security meets their ESG criteria, and any other factor deemed relevant by the portfolio managers.

Principal Risks


•	Style Risk - If at any time the market is not favoring the fund’s investment process, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Benchmark Correlation - The fund’s performance will be similar to the performance of its benchmark, the S&P 500 ^® Index. If the fund’s benchmark goes down, it is likely that the fund’s performance will go down .


•	ESG Criteria Risk - Because the fund's ESG criteria may exclude the securities of certain issuers for nonfinancial reasons, the fund may forego some market opportunities available to funds that do not use ESG criteria.


•	Foreign Securities - The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk — Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.


•	Market Risk - The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Principal Loss - At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for A Class shares. The table shows how the fund’s average annual returns for the periods shown compared with those of a broad measure of market performance. Because the Y Class does not have investment performance for a full calendar year, it is not included. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. For current performance information, please visit americancentury.com.

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

3 #

Calendar Year Total Returns

Highest Performance Quarter ( 3Q 2009 ): 15.47% Lowest Performance Quarter ( 4Q 2008 ): -20.53%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years
A Class Return Before Taxes	18.31%	13.49%	7.20%
Return After Taxes on Distributions	17.58%	13.15%	6.96%
Return After Taxes on Distributions and Sale of Fund Shares	10.97%	10.79%	5.81%
C Class Return Before Taxes	24.58%	13.97%	7.02%
R Class Return Before Taxes	25.20%	14.55%	7.56%
R5 Class ¹ Return Before Taxes	26.07%	15.36%	8.32%
Investor Class Return Before Taxes	25.79%	15.12%	8.10%
I Class Return Before Taxes	26.05%	15.35%	8.32%
S&P 500 ^® Index (reflects no deduction for fees, expenses or taxes)	21.83%	15.78%	8.49%


¹	Historical performance for the R5 Class prior to its inception (April 10, 2017) is based on the performance of I Class shares, which have the same expenses as the R5 Class shares.

The after-tax returns are shown only for A Class shares. After-tax returns for other share classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or IRAs.

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Gregory J. Woodhams , CFA, Co-CIO , Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2008.

Justin M. Brown , CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2008.

Joseph Reiland , CFA, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2008.

Robert J. Bove, Portfolio Manager, has been a member of the team that manages the fund since 2008.

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Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

There is no minimum initial investment amount for Y or R5 Class shares.

For the Investor, A, C, R and R5 Classes, there is no minimum initial investment amount for certain employer-sponsored retirement plans, however, financial intermediaries or plan recordkeepers may require plans to meet different minimums. For purposes of fund minimums, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Employer-sponsored retirement plans are not eligible to invest in the I or Y Class.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the Y Class. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

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Objectives, Strategies and Risks

What are the fund’s investment objectives?

The fund seeks long-term capital growth. Income is a secondary objective.

What are the fund’s principal investment strategies?

The fund generally will invest in larger-sized companies, although it may invest in companies of any size. The fund’s investment strategy utilizes quantitative management techniques in a three-step process. In the first step, the portfolio managers rank stocks from most attractive to least attractive. This is determined by using a quantitative model that combines fundamental measures of a stock’s value and growth potential. To measure value, the managers may use ratios of stock price-to-earnings and stock price-to-cash flow, among others. To measure growth, the managers may use the rate of growth of a company’s earnings and cash flow and changes in its earnings estimates, as well as other factors. The model also considers price momentum. The portfolio managers also evaluate stocks based on environmental, social and governance ("ESG") criteria. Stocks with favorable ESG ratings are identified using multiple sources, including research vendors and publicly available information.

In the second step, the managers build a portfolio of stocks from the ranking described above that they believe will provide the optimal balance between risk and expected return. The goal is to create a fund that provides better returns than, and a dividend yield comparable to, its benchmark, the S&P 500® Index, without taking on significant additional risk.

Finally, the portfolio managers validate the output of the quantitative model using additional fundamental analysis.

The portfolio managers do not attempt to time the market. Instead, under normal market conditions, they intend to keep at least 80% of the fund’s net assets invested in equity securities at all times. The fund may change this 80% policy only upon 60 days’ prior written notice to shareholders.



	Equity securities include common stock, preferred stock, and equity-equivalent securities, such as securities convertible into common stock, stock futures contracts or stock index futures contracts.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Market performance tends to be cyclical, and, in the various cycles, certain investment styles may fall in and out of favor. If the market is not favoring the fund’s investment process, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.

The fund’s performance will be similar to the performance of its benchmark. If the fund’s benchmark goes down, it is likely that the fund’s performance will go down.

Because the fund's ESG criteria may exclude the securities of certain issuers for nonfinancial reasons, the fund may forego some market opportunities available to funds that do not use ESG criteria.

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

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At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

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Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. T he difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than the Y Class, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	Y Class	A Class	C Class	R Class	R5 Class
Sustainable Equity	0.99%	0.79%	N/A ¹	0.99%	0.99%	0.99%	N/A ¹

¹ The Y and R5 Classes had not operated for a full fiscal year as of October 31, 2017 . The classes will pay the advisor a unified management fee calculated using the following schedules.



Class	Percentage of Strategy Assets
Y	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion

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The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Gregory J. Woodhams

Mr. Woodhams, Co-CIO , Global Growth Equity, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2008. He joined American Century Investments in 1997 and became a portfolio manager in 1998. He has a bachelor’s degree in economics from Rice University and an M.A. in economics from the University of Wisconsin. He is a CFA charterholder.

Justin M. Brown

Mr. Brown, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2008. He joined American Century Investments in 2000 as an investment analyst and became a portfolio manager in 2006. He has a bachelor’s degree in business administration and finance from Texas Christian University. He is a CFA charterholder.

Joseph Reiland

Mr. Reiland, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2008. He joined American Century Investments in 2000 as an investment analyst and became a portfolio manager in 2005. He has a bachelor’s degree in business administration from Washington University. He is a CFA charterholder.

Robert J. Bove

Mr. Bove, Portfolio Manager, has been a member of the team that manages the fund since 2008. He joined American Century Investments in 2005 as an investment analyst and became a portfolio manager in 2016. He has a bachelor’s degree in accounting from Villanova University and an MBA in finance from New York University, Leonard N. Stern School of Business.

Fundamental Investment Policies

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Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases

American Century Investments bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

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Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares*: Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax: 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

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Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

Y Class

A Class

C Class

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R5 Class

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Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class

Account Aggregation. Investments made by you and your immediate family may be aggregated at each account’s current market value if made for your own account(s) and/or certain other accounts, such as:


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

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of money market funds. At your request, existing holdings may be combined with new purchases and sales charge amounts may be adjusted for purchases made within 90 days prior to our receipt of the Letter of Intent. Capital appreciation, capital gains and reinvested dividends earned during the Letter of Intent period do not apply toward its completion. A portion of your account will be held in escrow to cover additional A Class sales charges that will be due if your total investments over the 13-month period do not qualify for the applicable sales charge reduction.

Waivers for Certain Investors . The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•

Certain group employer-sponsored retirement plans, where plan level or omnibus accounts are held with the fund, or shares are purchased by certain retirement plans that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers. For purposes of this waiver, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. However, SEP IRA, SIMPLE IRA or SARSEP retirement plans that (i) held shares of an A Class fund prior to March 1, 2009 that received sales charge waivers or (ii) held shares of an Advisor Class fund that was renamed A Class on March 1, 2010, may permit additional purchases by new and existing participants in A Class shares without an initial sales charge. Refer to Buying and Selling Fund Shares in the statement of additional information


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However, if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver.

C Class

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for the A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs


•	distributions from IRAs due to attainment of age 59½

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•	required minimum distributions from retirement accounts upon reaching age 70½


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R and R5 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century Investments does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Moving Between Share Classes and Accounts

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies


•	fund choices


•	cutoff time for investments


•	trading restrictions

15 #

See Additional Policies Affecting Your Investment for more information about investing with us.

16 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

Minimum Initial Investment Amounts for I Class

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for Y Class Shares

Minimum Initial Investment Amounts for Y Class

There is no minimum initial investment amount or subsequent investment amount for Y Class shares, but financial intermediaries may require different investment minimums.

17 #

Eligibility for R5 Class Shares

R5 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 Class

There is no minimum initial amount or subsequent investment amount for R5 Class shares, but financial intermediaries or plan recordkeepers may require plans to meet different investment minimums.

Redemptions

Generally, we expect to remit your redemption proceeds to you one business day after we process your transaction. However, we reserve the right to delay delivery of redemption proceeds for up to seven days. For example, each time you make an investment with American Century Investments, there is a seven-day holding period before we will release redemption proceeds from those shares, unless you provide us with satisfactory proof that your purchase funds have cleared. Investments by wire generally require only a one-day holding period. If you change your address, we may require that any redemption request made within seven days be submitted in writing and be signed by all authorized signers with their signatures guaranteed. We may also require a signature guarantee for redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

18 #

the six month period, and we may automatically reinvest all future dividends and distributions at the NAV on the date of the payment.

Signature Guarantees

A signature guarantee—which is different from a notarized signature—is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase, or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;

19 #


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

20 #

Share Price and Distributions

Share Price



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets, attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

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Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Your redemptions—including exchanges to other American Century Investments funds—are subject to capital gains tax. Short-term capital gains are gains on fund shares you held for 12 months or less. Long-term capital gains are gains on fund shares you held for more than 12 months. If your shares decrease in value, their sale or exchange will result in a long-term or short-term capital loss. However, you should note that loss realized upon the sale or exchange of shares held for six months or less will be treated as a long-term capital loss to the extent of any distribution of long-term capital gain to you with respect to those shares. If a loss is realized on the redemption of fund shares, the reinvestment in additional fund shares within 30 days before or after the redemption may be subject to the wash sale rules of the Internal Revenue Code. This may result in a postponement of the recognition of such loss for federal income tax purposes.

Buying a Dividend

23 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

24 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class, C Class and R Class each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% for C Class, and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

Certain financial intermediaries perform recordkeeping and administrative services for their clients that would otherwise be performed by American Century Investments’ transfer agent. In some circumstances, the advisor will pay such service providers a fee for performing those services. Also, the advisor and the fund’s distributor may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The distributor may sponsor seminars and conferences designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the funds over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. The amount of any payments described by this paragraph is determined by the advisor or the distributor, and all such amounts are paid out of the available assets of the advisor and distributor, and not by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

American Century Investments does not pay any fees to financial intermediaries on Y Class shares.

25 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

26 #

Sustainable Equity Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data								Ratios and Supplemental Data
		Income From Investment Operations:						Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Distributions From Net Investment Income	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Net Investment Income (Loss)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$21.75	0.23	5.51	5.74	(0.27)	$27.22	26.61%	1.00%	0.95%	18%		$135,315
2016	$21.77	0.25	(0.04)	0.21	(0.23)	$21.75	0.99%	0.99%	1.18%	71%		$87,865
2015	$21.31	0.26	0.46	0.72	(0.26)	$21.77	3.51%	0.99%	1.23%	33%		$95,072
2014	$18.41	0.24	2.88	3.12	(0.22)	$21.31	17.06%	1.00%	1.19%	41%		$77,015
2013	$14.82	0.23	3.55	3.78	(0.19)	$18.41	25.83%	1.01%	1.44%	36%		$68,416
I Class ⁽³⁾
2017	$21.81	0.27	5.53	5.80	(0.31)	$27.30	26.88%	0.80%	1.15%	18%		$19,776
2016	$21.84	0.29	(0.05)	0.24	(0.27)	$21.81	1.19%	0.79%	1.38%	71%		$5,637
2015	$21.37	0.31	0.47	0.78	(0.31)	$21.84	3.66%	0.79%	1.43%	33%		$14,077
2014	$18.47	0.28	2.88	3.16	(0.26)	$21.37	17.29%	0.80%	1.39%	41%		$10,731
2013	$14.85	0.27	3.55	3.82	(0.20)	$18.47	26.06%	0.81%	1.64%	36%		$10,451
Y Class
2017 ⁽⁴⁾	$23.89	0.16	3.28	3.44	—	$27.33	14.40%	0.65% ⁽⁵⁾	1.10% ⁽⁵⁾	18% ⁽⁶⁾		$383
A Class
2017	$21.67	0.17	5.50	5.67	(0.21)	$27.13	26.34%	1.25%	0.70%	18%		$51,396
2016	$21.69	0.20	(0.05)	0.15	(0.17)	$21.67	0.74%	1.24%	0.93%	71%		$97,012
2015	$21.23	0.21	0.46	0.67	(0.21)	$21.69	3.21%	1.24%	0.98%	33%		$122,492
2014	$18.35	0.19	2.86	3.05	(0.17)	$21.23	16.76%	1.25%	0.94%	41%		$116,462
2013	$14.80	0.20	3.53	3.73	(0.18)	$18.35	25.51%	1.26%	1.19%	36%		$119,358
C Class
2017	$21.27	(0.01)	5.41	5.40	(0.04)	$26.63	25.40%	2.00%	(0.05)%	18%		$17,904
2016	$21.29	0.04	(0.04)	— ⁽⁷⁾	(0.02)	$21.27	(0.02)%	1.99%	0.18%	71%		$18,640
2015	$20.84	0.05	0.45	0.50	(0.05)	$21.29	2.42%	1.99%	0.23%	33%		$21,036
2014	$18.01	0.04	2.82	2.86	(0.03)	$20.84	15.90%	2.00%	0.19%	41%		$16,777
2013	$14.61	0.07	3.48	3.55	(0.15)	$18.01	24.54%	2.01%	0.44%	36%		$16,679
R Class
2017	$21.55	0.11	5.47	5.58	(0.15)	$26.98	26.03%	1.50%	0.45%	18%		$3,910
2016	$21.58	0.14	(0.05)	0.09	(0.12)	$21.55	0.44%	1.49%	0.68%	71%		$4,090
2015	$21.11	0.16	0.47	0.63	(0.16)	$21.58	3.01%	1.49%	0.73%	33%		$5,680
2014	$18.25	0.14	2.84	2.98	(0.12)	$21.11	16.45%	1.50%	0.69%	41%		$5,294
2013	$14.74	0.15	3.53	3.68	(0.17)	$18.25	25.25%	1.51%	0.94%	36%		$5,000
R5 Class
2017 ⁽⁴⁾	$23.89	0.15	3.26	3.41	—	$27.30	14.27%	0.80% ⁽⁵⁾	1.07% ⁽⁵⁾	18% ⁽⁶⁾		$6

Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	April 10, 2017 (commencement of sale) through October 31, 2017.


(5)	Annualized.


(6)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.


(7)	Per-share amount was less than $0.005.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds , provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91785 1803

March 1, 2018

American Century Investments

Prospectus

Ultra ^® Fund

Investor Class ( TWCUX )

I Class ( TWUIX )

Y Class ( AULYX )

A Class ( TWUAX )

C Class ( TWCCX )

R Class ( AULRX )

R5 Class ( AULGX )

R6 Class ( AULDX )



The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Table of Contents



Fund Summary	2
Investment Objective	2
Fees and Expenses	2
Principal Investment Strategies	3
Principal Risks	3
Fund Performance	3
Portfolio Management	4
Purchase and Sale of Fund Shares	5
Tax Information	5
Payments to Broker-Dealers and Other Financial Intermediaries	5
Objectives, Strategies and Risks	6
Management	8
Investing Directly with American Century Investments	10
Investing Through a Financial Intermediary	12
Additional Policies Affecting Your Investment	17
Share Price and Distributions	21
Taxes	23
Multiple Class Information	25
Financial Highlights	26
Appendix A	A-1

Fund Summary

Investment Objective

The fund seeks long-term capital growth.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in American Century Investments funds. More information about these and other discounts is available from your financial professional and in Calculation of Sales Charges on page 13 of the fund’s prospectus, Appendix A of the fund’s prospectus and Sales Charges in Appendix B of the statement of additional information.



Shareholder Fees (fees paid directly from your investment)
	Investor	I ¹	Y	A	C	R	R5	R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	None	5.75%	None	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original offering price or redemption proceeds when redeemed within one year of purchase)	None	None	None	None²	1.00%	None	None	None
Maximum Annual Account Maintenance Fee (waived if eligible investments total at least $10,000)	$25	None	None	None	None	None	None	None



Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Investor	I	Y	A	C	R	R5	R6
Management Fee	0.97%	0.77%	0.62%	0.97%	0.97%	0.97%	0.77%	0.62%
Distribution and Service (12b-1) Fees	None	None	None	0.25%	1.00%	0.50%	None	None
Other Expenses	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses	0.98%	0.78%	0.63%	1.23%	1.98%	1.48%	0.78%	0.63%


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.


²	Purchases of $1 million or more may be subject to a contingent deferred sales charge of 1.00% if the shares are redeemed within one year of the date of the purchase.

Example

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn a 5% return each year, and that the fund’s operating expenses remain the same. You may be required to pay brokerage commissions on your purchases of Investor, I or Y Class shares of the fund, which are not reflected in the example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:



	1 year	3 years	5 years	10 years
Investor Class	$100	$313	$542	$1,201
I Class	$80	$250	$434	$966
Y Class	$65	$202	$352	$787
A Class	$693	$943	$1,212	$1,978
C Class	$201	$622	$1,068	$2,303
R Class	$151	$469	$809	$1,767
R5 Class	$80	$250	$434	$966
R6 Class	$65	$202	$352	$787

Portfolio Turnover

2 #

Principal Investment Strategies

The portfolio managers use a variety of analytical research tools and techniques to identify the stocks of larger-sized companies that meet their investment criteria. Under normal market conditions, the portfolio managers seek securities of companies whose earnings or revenues are not only growing, but growing at an accelerated pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. Among other variables, the portfolio managers will consider the fund’s growth and momentum profile relative to the benchmark. Other analytical techniques help identify additional signs of business improvement, such as increasing cash flows, or other indications of the relative strength of a company’s business. In addition to accelerating growth and other signs of business improvement, the fund also considers companies demonstrating price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

Principal Risks


•	Growth Stocks — Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.


•	Style Risk — If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.


•	Market Risk — The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market.


•	Price Volatility — The value of the fund’s shares may fluctuate significantly in the short term.


•	Foreign Securities — The fund may invest in foreign securities, which can be riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Covered Call Risk — Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.


•	Principal Loss — At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Fund Performance

Sales charges and account fees, if applicable, are not reflected in the bar chart. If those charges were included, returns would be less than those shown.

3 #

Calendar Year Total Returns

Highest Performance Quarter ( 1Q 2012 ): 15.53% Lowest Performance Quarter ( 4Q 2008 ): -21.50%



Average Annual Total Returns For the calendar year ended December 31, 2017	1 year	5 years	10 years	Since Inception	Inception Date
Investor Class Return Before Taxes	31.90%	17.06%	8.85%	—	11/02/1981
Return After Taxes on Distributions	30.13%	15.56%	8.12%	—	11/02/1981
Return After Taxes on Distributions and Sale of Fund Shares	19.53%	13.54%	7.11%	—	11/02/1981
I Class Return Before Taxes	32.14%	17.30%	9.07%	—	11/14/1996
Y Class ¹ Return Before Taxes	32.41%	—	—	15.44%	04/10/2017
A Class Return Before Taxes	24.00%	15.40%	7.94%	—	10/02/1996
C Class Return Before Taxes	30.58%	15.90%	7.77%	—	10/29/2001
R Class Return Before Taxes	31.27%	16.49%	8.31%	—	08/29/2003
R5 Class ² Return Before Taxes	32.15%	17.30%	9.07%	—	04/10/2017
R6 Class Return Before Taxes	32.39%	—	—	15.44%	07/26/2013
Russell 1000 ^® Growth Index (reflects no deduction for fees, expenses or taxes)	30.21%	17.32%	9.99%	—	—
S&P 500 ^® Index (reflects no deduction for fees, expenses or taxes)	21.83%	15.78%	8.49%	—	—


¹	Historical performance for the Y Class prior to its inception is based on the performance of R6 Class shares, which have the same expenses as the Y Class shares. Since inception performance for the Y Class is based on the R6 Class inception date.


²	Historical performance for the R5 Class prior to its inception is based on the performance of I Class shares, which have the same expenses as the R5 Class shares.

Portfolio Management

Investment Advisor

American Century Investment Management, Inc.

Portfolio Managers

Keith Lee , CFA, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2008.

Michael Li , Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2008.

4 #

Jeffrey R. Bourke, CFA, Portfolio Manager, has been a member of the team that manages the fund since 2008.

Purchase and Sale of Fund Shares

Unless otherwise specified below, the minimum initial investment amount to open an account is $2,500 ($2,000 for Coverdell Education Savings Accounts). Investors opening accounts through financial intermediaries may open an account with $250 for Investor, A, C and R Classes, but the financial intermediaries may require their clients to meet different investment minimums. The minimum may be waived for broker-dealer sponsored wrap program accounts, fee based accounts, and accounts through bank/trust and wealth management advisory organizations.

There is no minimum initial investment amount for Y, R5 or R6 Class shares.

There is a $50 minimum for subsequent purchases, except that there is no subsequent purchase minimum for financial intermediaries or employer-sponsored retirement plans.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank, insurance company, plan sponsor or financial professional), the fund and its related companies may pay the intermediary for the sale of fund shares and related services for investments in all classes except the Y and R6 Classes. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

5 #

Objectives, Strategies and Risks

What is the fund’s investment objective?

The fund seeks long-term capital growth.

What are the fund’s principal investment strategies?

The portfolio managers look for stocks of larger-sized companies they believe will increase in value over time. The portfolio managers use a bottom-up approach to stock selection. This means that the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings, revenues and/or cash flow.

Using a variety of analytical research tools, the portfolio managers track financial information for individual companies to identify and evaluate trends in earnings, revenues and other business fundamentals. Under normal market conditions, the portfolio managers seek securities of companies whose earnings and revenues are not only growing, but growing at an accelerated pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate. Among other variables, the portfolio managers will consider the fund’s growth and momentum profile relative to the benchmark. Other analytical techniques help identify additional signs of business improvement, such as increasing cash flows, or other indications of the relative strength of a company’s business. In addition to accelerating growth and other signs of business improvement, the fund also considers companies demonstrating price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria.

A description of the policies and procedures with respect to the disclosure of the fund’s portfolio securities is available in the statement of additional information.

What are the principal risks of investing in the fund?

Although the portfolio managers intend to invest the fund’s assets primarily in U.S. securities, the fund may invest in securities of foreign companies. Foreign investment involves additional risks, including fluctuations in currency exchange rates, less stable political and economic structures, reduced availability of public information, and lack of uniform financial reporting and regulatory practices similar to those that apply in the United States. These factors make investing in foreign securities generally riskier than investing in U.S. securities. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities. To the extent a fund invests in foreign securities, the overall risk of that fund could be affected.

6 #

Writing covered calls may limit the fund’s ability to participate in price increases of the underlying securities and could lower the fund’s return.

At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

7 #

Management

Who manages the fund?

The Board of Directors, investment advisor and fund management team play key roles in the management of the fund.

The Board of Directors

The Investment Advisor

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each class of shares of the fund. The amount of the fee is calculated daily and paid monthly in arrears. Out of that fee, the advisor pays all expenses of managing and operating that fund except brokerage expenses, taxes, interest, fees and expenses of the independent directors (including legal counsel fees), extraordinary expenses, and expenses incurred in connection with the provision of shareholder services and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act of 1940. The difference in unified management fees among the classes is a result of their separate arrangements for non-Rule 12b-1 shareholder services. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the fund’s assets, which do not vary by class. For all classes other than the Y and R6 Classes, the advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.

The rate of the fee is determined by applying a formula that takes into account the assets of the fund as well as certain assets, if any, of other clients of the advisor outside the American Century Investments fund family (such as subadvised funds and separate accounts) that use very similar investment teams and strategies (strategy assets). The use of strategy assets, rather than fund assets alone, in calculating the fund’s fee rate could allow the fund to realize scheduled cost savings more quickly. However, it is possible that the fund’s strategy assets will not include assets of other client accounts or that any such assets may not be sufficient to result in a lower fee rate.



Management Fees Paid by the Fund to the Advisor as a Percentage of Average Net Assets for the Fiscal Year Ended October 31, 2017	Investor Class	I Class	Y Class	A Class	C Class	R Class	R5 Class	R6 Class
Ultra	0.97%	0.77%	N/A ¹	0.97%	0.97%	0.97%	N/A ¹	0.62%

¹ The Y and R5 Classes had not operated for a full fiscal year as of October 31, 2017 . The classes will pay the advisor a unified management fee calculated using the following schedules.



Class	Percentage of Strategy Assets
Y	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion

8 #

The Fund Management Team

The advisor uses teams of portfolio managers and analysts to manage funds. The teams meet regularly to review portfolio holdings and discuss purchase and sale activity. Team members buy and sell securities for a fund as they see fit, guided by the fund’s investment objective and strategy.

The portfolio managers on the investment team who are jointly and primarily responsible for the day-to-day management of the fund are identified below.

Keith Lee

Mr. Lee, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2008. He initially joined American Century Investments in 1998 and rejoined in 2001. He became a portfolio manager in 2003. He has a bachelor of science degree in industrial engineering from Columbia University. He is a CFA charterholder.

Michael Li

Dr. Li, Vice President and Portfolio Manager, has been a member of the team that manages the fund since 2008. He joined American Century Investments in 2002 as an investment analyst and became a portfolio manager in 2006. Before joining American Century Investments, he attended The Wharton School at the University of Pennsylvania, where he obtained his MBA. He also has a bachelor of science degree from the University of Science and Technology of China and a Ph.D. from the University of Michigan.

Jeffrey R. Bourke

Mr. Bourke, Portfolio Manager, has been a member of the team that manages the fund since 2008. He joined American Century Investments in 2007 as an analyst and became a portfolio manager in 2013. He has a bachelor of science degree in civil and environmental engineering from Duke University and an MBA in finance and accounting from the University of Chicago Booth School of Business. He is a CFA charterholder.

Fundamental Investment Policies

9 #

Investing Directly with American Century Investments

Services Automatically Available to You

Account Maintenance Fee



	Personal accounts include individual accounts, joint accounts, UGMA/UTMA accounts, personal trusts, Coverdell Education Savings Accounts, IRAs (including traditional, Roth, Rollover, SEP-, SARSEP- and SIMPLE-IRAs), and certain other retirement accounts. If you have only business, business retirement, employer-sponsored or American Century Investments brokerage accounts, you are currently not subject to this fee, but you may be subject to other fees.

Wire Purchases


•	American Century Investments’ bank information: Commerce Bank N.A., Routing No. 101000019, Account No. 2804918


•	Your American Century Investments account number and fund name


•	Your name


•	The contribution year (for IRAs only)


•	Dollar amount

New Investors: To make a wire purchase into a new account, please complete an application or call us prior to wiring money.

10 #

Ways to Manage Your Account

ONLINE

americancentury.com

Exchange shares: Exchange shares from another American Century Investments account with an identical registration.

Make additional investments: Make an additional investment into an established American Century Investments account. If we do not have your bank information, you can add it.

Sell shares*: Redeem shares and choose whether the proceeds are electronically transferred to your authorized bank account or sent by check to your address of record.

* Online redemptions up to $25,000 per day per account.

IN PERSON

If you prefer to handle your transactions in person, visit one of our Investor Centers and a representative can help you open an account, make additional investments, and sell or exchange shares.


•	4500 Main Street, Kansas City, MO — 8 a.m. to 5 p.m., Monday – Friday


•	4917 Town Center Drive, Leawood, KS — 8 a.m. to 5 p.m., Monday – Friday; 8 a.m. to noon, Saturday


•	1665 Charleston Road, Mountain View, CA — 8 a.m. to 5 p.m., Monday – Friday

BY TELEPHONE

Investor Services Representative: 1-800-345-2021

Business, Not-For-Profit and Employer-Sponsored Retirement Plans: 1-800-345-3533

Automated Information Line: 1-800-345-8765

Open an account: If you are a current investor, you can open an account by exchanging shares from another American Century Investments account with an identical registration.

Exchange shares: Call or use our Automated Information Line (available only to Investor Class shareholders).

Sell shares: Call or use our Automated Information Line. The Automated Information Line redemptions are up to $25,000 per day per account and are available for Investor Class shareholders only.

BY MAIL OR FAX

Mail Address: P.O. Box 419200, Kansas City, MO 64141-6200 — Fax : 1-888-327-1998

Open an account: Send a signed, completed application and check or money order payable to American Century Investments.

Exchange shares: Send written instructions to exchange your shares from one American Century Investments account to another with an identical registration.

Sell shares: Send written instructions or a redemption form to sell shares. Call a Service Representative to request a form.

AUTOMATICALLY

Open an account: Not available.

Exchange shares: Send written instructions to set up an automatic exchange of your shares from one American Century Investments account to another with an identical registration.

Make additional investments: With the automatic investment service, you can purchase shares on a regular basis. You must invest at least $50 per month per account.

Sell shares: You may sell shares automatically by establishing a systematic redemption plan.

See Additional Policies Affecting Your Investment for more information about investing with us.

11 #

Investing Through a Financial Intermediary

The fund may be purchased by participants in employer-sponsored retirement plans or through financial intermediaries that provide various administrative and distribution services.



	Financial intermediaries include banks, broker-dealers, insurance companies, plan sponsors and financial professionals.

Investor Class

I Class

Y Class

A Class

C Class

R Class

R Class shares do not carry a sales charge or commission, but they have an ongoing distribution and service (12b-1) fee. R Class shares are available for purchase through certain employer-sponsored retirement plans. R Class shares also may be available for certain other accounts through financial intermediaries who have an agreement with us to offer R Class in certain products. Additionally, IRA accounts in R Class shares established through financial intermediaries prior to August 1, 2006, may make additional purchases. R Class shares are not available for purchase in the following types of employer-sponsored retirement plans: SEP IRAs, SIMPLE IRAs or SARSEPs, except that investors in such plans with accounts in R Class shares established prior to March 1, 2009, may make additional purchases, and certain intermediaries may have agreements with us to offer R Class shares in such plans as described above.

R5 and R6 Class

12 #

Calculation of Sales Charges

The information regarding sales charges provided herein is included free of charge and in a clear and prominent format at americancentury.com in the Investors Using Advisors and Investment Professionals portions of the website. From the description of A or C Class shares, a hyperlink will take you directly to this disclosure.

A Class



Purchase Amount	Sales Charge as a % of Offering Price	Sales Charge as a % of Net Amount Invested	Dealer Commission as a % of Offering Price
Less than $50,000	5.75%	6.10%	5.00%
$50,000 - $99,999	4.75%	4.99%	4.00%
$100,000 - $249,999	3.75%	3.90%	3.25%
$250,000 - $499,999	2.50%	2.56%	2.00%
$500,000 - $999,999	2.00%	2.04%	1.75%
$1,000,000 - $3,999,999	0.00%	0.00%	1.00%
$4,000,000 - $9,999,999	0.00%	0.00%	0.50%
$10,000,000 or more	0.00%	0.00%	0.25%

Reductions and Waivers of Sales Charges for A Class

Account Aggregation. Investments made by you and your immediate family may be aggregated at each account’s current market value if made for your own account(s) and/or certain other accounts, such as:


•	Certain trust accounts


•	Solely controlled business accounts


•	Single-participant retirement plans


•	Endowments or foundations established and controlled by you or an immediate family member

Concurrent Purchases. You may combine simultaneous purchases in any share class of any American Century Investments fund to qualify for a reduced A Class sales charge.

13 #

Waivers for Certain Investors. The sales charge on A Class shares may be waived for:


•	Purchases by registered representatives and other employees of certain financial intermediaries (and their immediate family members, which includes their spouse or domestic partner and children, step-children, parents or step-parents of them, their spouse or domestic partner) having selling agreements with the advisor or distributor


•	Broker-dealer sponsored wrap program accounts and/or fee-based accounts maintained for clients of certain financial intermediaries who have entered into selling agreements with American Century Investments


•	Purchases in accounts of financial intermediaries that have entered into a selling agreement with American Century Investments that allows for the waiver of the sales charge in brokerage accounts that may or may not charge a transaction fee


•	Current officers, directors and employees of American Century Investments

•


•	Purchases of additional shares in accounts that held shares of an Advisor Class fund that was renamed A Class on either September 4, 2007, December 3, 2007 or March 1, 2010. However, if you close your account or if you transfer your account to another financial intermediary, future purchases of A Class shares of a fund may not receive a sales charge waiver

C Class

Calculation of Contingent Deferred Sales Charge (CDSC)

CDSC Waivers

Any applicable CDSC for the A or C Classes may be waived in the following cases:


•	redemptions through systematic withdrawal plans not exceeding annually 12% of the lesser of the original purchase cost or current market value for A and C Class shares

14 #


•	redemptions through employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.


•	distributions from IRAs due to attainment of age 59½ for A Class shares and for C Class shares


•	required minimum distributions from retirement accounts upon reaching age 70½


•	tax-free returns of excess contributions to IRAs


•	redemptions due to death or post-purchase disability


•	exchanges, unless the shares acquired by exchange are redeemed within the original CDSC period


•	IRA Rollovers from any American Century Investments fund held in an employer-sponsored retirement plan, for A Class shares only


•	if no dealer commission was paid to the financial intermediary on the purchase for any other reason

Reinstatement Privilege

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R, R5 and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. For more information regarding employer-sponsored retirement plan types, please refer to Buying and Selling Fund Shares in the statement of additional information. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century Investments does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Exchanging Shares

You may exchange shares of the fund for shares of the same class of another American Century Investments fund without a sales charge if you meet the following criteria:


•	The exchange is for a minimum of $100


•	For an exchange that opens a new account, the amount of the exchange must meet or exceed the minimum account size requirement for the fund receiving the exchange

Moving Between Share Classes and Accounts

Buying and Selling Shares Through a Financial Intermediary

Your ability to purchase, exchange, redeem and transfer shares will be affected by the policies of the financial intermediary through which you do business. Some policy differences may include


•	minimum investment requirements


•	exchange policies

15 #


•	fund choices


•	cutoff time for investments


•	trading restrictions

See Additional Policies Affecting Your Investment for more information about investing with us.

16 #

Additional Policies Affecting Your Investment

Eligibility for Investor Class Shares


•	self-directed accounts on transaction-based platforms that may or may not charge a transaction fee


•	employer-sponsored retirement plans


•	broker-dealer sponsored fee-based wrap programs or other fee-based advisory accounts


•	insurance products and bank/trust products where fees are being charged

Minimum Initial Investment Amounts for Investor, A, C and R Classes



Broker-dealer sponsored wrap program accounts and/or fee-based advisory accounts	No minimum
Coverdell Education Savings Account (CESA)	$2,000 ¹
Employer-sponsored retirement plans ²	No minimum


¹	The minimum initial investment for shareholders investing through financial intermediaries is $250. Financial intermediaries may have different minimums for their clients.


²	For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs.

Subsequent Purchases

Eligibility for I Class Shares

Minimum Initial Investment Amounts for I Class

American Century Investments may permit an intermediary to waive the initial minimum per shareholder as provided in Buying and Selling Fund Shares in the statement of additional information.

Eligibility for Y Class Shares

Minimum Initial Investment Amounts for Y Class

There is no minimum initial investment amount or subsequent investment amount for Y Class shares, but financial intermediaries may require different investment minimums.

17 #

Eligibility for R5 and R6 Class Shares

R5 and R6 Class shares are not available to retail accounts, traditional or Roth IRAs, SEP IRAs, SIMPLE IRAs, SARSEPs or Coverdell education savings accounts.

Minimum Initial Investment Amounts for R5 and R6 Classes

Redemptions

Generally, we expect to remit your redemption proceeds to you one business day after we process your transaction. However, we reserve the right to delay delivery of redemption proceeds for up to seven days. For example, each time you make an investment with American Century Investments, there is a seven-day holding period before we will release redemption proceeds from those shares, unless you provide us with satisfactory proof that your purchase funds have cleared. Investments by wire generally require only a one-day holding period. If you change your address, we may require that any redemption request made within seven days be submitted in writing and be signed by all authorized signers with their signatures guaranteed. We may also require a signature guarantee for redemptions in other situations, as described below. If you change your bank information, we may impose a seven-day holding period before we will transfer or wire redemption proceeds to your bank. Please remember, if you request redemptions by wire, $10 will be deducted from the amount redeemed. Your bank also may charge a fee.

Special Requirements for Large Redemptions

Redemption of Shares in Accounts Below Minimum

If your account balance falls below the minimum initial investment amount for any reason, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 60 days to meet the minimum. Please note that shares redeemed in this manner may be subject to a sales charge if held less than the applicable time period. You also may incur tax liability as a result of the redemption. For I Class shares, we reserve the right to convert your shares to Investor Class shares of the same fund. The Investor Class shares have a unified management fee that is 0.20 percentage points higher than the I Class.

Small Distributions and Uncashed Distribution Checks

18 #

Signature Guarantees

A signature guarantee—which is different from a notarized signature—is a warranty that the signature presented is genuine. We may require a signature guarantee for the following transactions:


•	Your redemption or distribution check or automatic redemption is made payable to someone other than the account owners;


•	Your redemption proceeds or distribution amount is sent by EFT (ACH or wire) to a destination other than your personal bank account;


•	You are transferring ownership of an account over $100,000;


•	You change your address and request a redemption over $100,000 within seven days;


•	You request proceeds from redemptions, dividends, or distributions be sent to an address or financial institution differing from those on record; or


•	You make a redemption or other transaction request via telephone, and we are unable to verify your identity.

We reserve the right to require a signature guarantee for other transactions, or we may employ other security measures, such as signature comparison or notarized signature, at our discretion.

Canceling a Transaction

Frequent Trading Practices


•	within seven days of the purchase, or


•	within 30 days of the purchase, if it happens more than once per year.

The frequent trading limitations do not apply to the following types of transactions:


•	purchases of shares through reinvested distributions (dividends and capital gains);


•	redemption of shares to pay fund or account fees;


•	CheckWriting redemptions;

19 #


•	redemptions requested following the death of a registered shareholder;


•	transactions through automatic purchase or redemption plans;


•	transfers and re-registrations of shares within the same fund;


•	shares exchanged from one share class to another within the same fund;


•	transactions by 529 college savings plans and funds of funds (however shareholders of American Century’s funds of funds are subject to the limitations); and


•	reallocation or rebalancing transactions in broker-dealer sponsored fee-based wrap and advisory programs.

Your Responsibility for Unauthorized Transactions

A Note About Mailings to Shareholders

Right to Change Policies

20 #

Share Price and Distributions

Share Price

American Century Investments will price the fund shares you purchase, exchange or redeem based on the net asset value (NAV) next determined after your order is received in good order by the fund’s transfer agent, or other financial intermediary with the authority to accept orders on the fund’s behalf. We determine the NAV of each fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.



	The net asset value , or NAV, of each class of the fund is the current value of the fund’s assets attributable to the class, minus any liabilities, divided by the number of shares of the class outstanding.

The fund values portfolio securities for which market quotations are readily available at their market price. As a general rule, equity securities listed on a U.S. exchange are valued at the last reported sale price as of the time of valuation. Portfolio securities primarily traded on foreign securities exchanges are generally valued at the preceding official close price or last sale price of such securities on the foreign exchange where primarily traded or at the time the fund’s NAV is determined, if that foreign exchange is open later than the NYSE. The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund’s NAV is determined. Securities that are neither listed on a securities exchange nor traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security. The fund may use third party pricing services to assist in the determination of market value.


•	if, after the close of the foreign exchange on which a portfolio security is principally traded, but before the close of the NYSE, an event occurs that may materially affect the value of the security;


•	a debt security has been declared in default; or


•	trading in a security has been halted during the trading day.

Distributions

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as capital gains realized by the fund on the sale of its investment securities. The fund generally expects to pay distributions from net income and capital gains, if any, once a year in December. The fund may make more frequent distributions, if necessary, to comply with Internal Revenue Code provisions.



	Capital gains are increases in the values of capital assets, such as stock, from the time the assets are purchased.

21 #

Generally, participants in tax-deferred retirement plans reinvest all distributions. For investors investing through taxable accounts, we will reinvest distributions unless you elect to have dividends and/or capital gains sent to another American Century Investments account, to your bank electronically, to your home address or to another person or address by check.

22 #

Taxes

Tax-Deferred Accounts

Taxable Accounts

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

Taxability of Distributions



	Qualified dividend income is a dividend received by the fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period.

For taxable accounts, American Century Investments or your financial intermediary will inform you of the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone’s tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

Taxes on Transactions

Your redemptions—including exchanges to other American Century Investments funds—are subject to capital gains tax. Short-term capital gains are gains on fund shares you held for 12 months or less. Long-term capital gains are gains on fund shares you held for more than 12 months. If your shares decrease in value, their sale or exchange will result in a long-term or short-term capital loss. However, you should note that loss realized upon the sale or exchange of shares held for six months or less will be treated as a long-term capital loss to the extent of any distribution of long-term capital gain to you with respect to those shares. If a loss is realized on the redemption of fund shares, the reinvestment in additional fund shares within 30 days before or after the redemption may be subject to the wash sale rules of the Internal Revenue Code. This may result in a postponement of the recognition of such loss for federal income tax purposes.

Buying a Dividend

23 #

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund’s portfolio.

24 #

Multiple Class Information

Service, Distribution and Administrative Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The fund’s A Class, C Class and R Class shares each have a 12b-1 plan. The plans provide for the fund to pay annual fees of 0.25% for A Class, 1.00% for C Class and 0.50% for R Class to the distributor for distribution and individual shareholder services, including past distribution services. The distributor pays all or a portion of such fees to the financial intermediaries that make the classes available. Because these fees may be used to pay for services that are not related to prospective sales of the fund, each class will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund’s assets on an ongoing basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges. The higher fees for C Class shares may cost you more over time than paying the initial sales charge for A Class shares. For additional information about the plans and their terms, see Multiple Class Structure in the statement of additional information.

American Century Investments does not pay any fees to financial intermediaries on Y or R6 Class shares.

25 #

Financial Highlights

Understanding the Financial Highlights

On a per-share basis, the table includes as appropriate


•	share price at the beginning of the period


•	investment income and capital gains or losses


•	distributions of income and capital gains paid to investors


•	share price at the end of the period

The table also includes some key statistics for the period as appropriate


•	Total Return – the overall percentage of return of the fund, assuming the reinvestment of all distributions


•	Expense Ratio – the operating expenses of the fund as a percentage of average net assets


•	Net Income Ratio – the net investment income of the fund as a percentage of average net assets


•	Portfolio Turnover – the percentage of the fund’s investment portfolio that is replaced during the period

26 #

Ultra Fund



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Operating Expenses (before expense waiver)	Net Investment Income (Loss)	Net Investment Income (Loss) (before expense waiver)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
Investor Class
2017	$35.83	0.07	10.39	10.46	(0.10)	(1.60)	(1.70)	$44.59	30.42%	0.98%	0.98%	0.17%	0.17%	16%		$9,593,102
2016	$37.81	0.06	(0.14)	(0.08)	(0.08)	(1.82)	(1.90)	$35.83	(0.06)%	0.98%	0.98%	0.19%	0.19%	18%		$7,790,085
2015	$37.20	0.08	3.18	3.26	(0.12)	(2.53)	(2.65)	$37.81	9.72%	0.98%	0.98%	0.22%	0.22%	16%		$8,273,589
2014	$33.56	0.10	4.96	5.06	(0.10)	(1.32)	(1.42)	$37.20	15.66%	1.00%	1.01%	0.29%	0.28%	16%		$7,981,781
2013	$25.68	0.15	7.86	8.01	(0.13)	—	(0.13)	$33.56	31.34%	0.99%	0.99%	0.52%	0.52%	26%		$7,338,222
I Class ⁽³⁾
2017	$36.95	0.14	10.73	10.87	(0.18)	(1.60)	(1.78)	$46.04	30.66%	0.78%	0.78%	0.37%	0.37%	16%		$322,059
2016	$38.93	0.14	(0.14)	—	(0.16)	(1.82)	(1.98)	$36.95	0.14%	0.78%	0.78%	0.39%	0.39%	18%		$198,930
2015	$38.22	0.16	3.27	3.43	(0.19)	(2.53)	(2.72)	$38.93	9.96%	0.78%	0.78%	0.42%	0.42%	16%		$205,574
2014	$34.44	0.17	5.10	5.27	(0.17)	(1.32)	(1.49)	$38.22	15.90%	0.80%	0.81%	0.49%	0.48%	16%		$214,464
2013	$26.32	0.17	8.10	8.27	(0.15)	—	(0.15)	$34.44	31.56%	0.79%	0.79%	0.72%	0.72%	26%		$202,118
Y Class
2017 ⁽⁴⁾	$39.40	0.10	6.57	6.67	—	—	—	$46.07	16.93%	0.63% ⁽⁵⁾	0.63% ⁽⁵⁾	0.43% ⁽⁵⁾	0.43% ⁽⁵⁾	16% ⁽⁶⁾		$6
A Class
2017	$34.45	(0.04)	10.00	9.96	(0.01)	(1.60)	(1.61)	$42.80	30.10%	1.23%	1.23%	(0.08)%	(0.08)%	16%		$83,130
2016	$36.43	(0.02)	(0.14)	(0.16)	—	(1.82)	(1.82)	$34.45	(0.31)%	1.23%	1.23%	(0.06)%	(0.06)%	18%		$58,829
2015	$35.94	(0.01)	3.06	3.05	(0.03)	(2.53)	(2.56)	$36.43	9.46%	1.23%	1.23%	(0.03)%	(0.03)%	16%		$72,004
2014	$32.46	0.01	4.81	4.82	(0.02)	(1.32)	(1.34)	$35.94	15.35%	1.25%	1.26%	0.04%	0.03%	16%		$71,650
2013	$24.89	0.08	7.60	7.68	(0.11)	—	(0.11)	$32.46	30.99%	1.24%	1.24%	0.27%	0.27%	26%		$71,063
C Class
2017	$30.17	(0.28)	8.67	8.39	—	(1.60)	(1.60)	$36.96	29.12%	1.98%	1.98%	(0.83)%	(0.83)%	16%		$5,359
2016	$32.36	(0.25)	(0.12)	(0.37)	—	(1.82)	(1.82)	$30.17	(1.03)%	1.98%	1.98%	(0.81)%	(0.81)%	18%		$3,306
2015	$32.41	(0.25)	2.73	2.48	—	(2.53)	(2.53)	$32.36	8.63%	1.98%	1.98%	(0.78)%	(0.78)%	16%		$2,968
2014	$29.60	(0.22)	4.35	4.13	—	(1.32)	(1.32)	$32.41	14.51%	2.00%	2.01%	(0.71)%	(0.72)%	16%		$2,482
2013	$22.83	(0.13)	6.96	6.83	(0.06)	—	(0.06)	$29.60	29.98%	1.99%	1.99%	(0.48)%	(0.48)%	26%		$2,077
R Class
2017	$33.79	(0.12)	9.77	9.65	—	(1.60)	(1.60)	$41.84	29.75%	1.48%	1.48%	(0.33)%	(0.33)%	16%		$11,345
2016	$35.85	(0.10)	(0.14)	(0.24)	—	(1.82)	(1.82)	$33.79	(0.55)%	1.48%	1.48%	(0.31)%	(0.31)%	18%		$9,066
2015	$35.46	(0.10)	3.02	2.92	—	(2.53)	(2.53)	$35.85	9.19%	1.48%	1.48%	(0.28)%	(0.28)%	16%		$9,637
2014	$32.10	(0.08)	4.76	4.68	—	(1.32)	(1.32)	$35.46	15.08%	1.50%	1.51%	(0.21)%	(0.22)%	16%		$7,983
2013	$24.66	0.01	7.53	7.54	(0.10)	—	(0.10)	$32.10	30.66%	1.49%	1.49%	0.02%	0.02%	26%		$6,556



For a Share Outstanding Throughout the Years Ended October 31 (except as noted)
Per-Share Data										Ratios and Supplemental Data
		Income From Investment Operations:			Distributions From:					Ratio to Average Net Assets of:
	Net Asset Value, Beginning of Period	Net Investment Income (Loss) ⁽¹⁾	Net Realized and Unrealized Gain (Loss)	Total From Investment Operations	Net Investment Income	Net Realized Gains	Total Distributions	Net Asset Value, End of Period	Total Return ⁽²⁾	Operating Expenses	Operating Expenses (before expense waiver)	Net Investment Income (Loss)	Net Investment Income (Loss) (before expense waiver)	Portfolio Turnover Rate	Net Assets, End of Period (in thousands)
R5 Class
2017 ⁽⁴⁾	$39.41	0.07	6.56	6.63	—	—	—	$46.04	16.82%	0.78% ⁽⁵⁾	0.78% ⁽⁵⁾	0.28% ⁽⁵⁾	0.28% ⁽⁵⁾	16% ⁽⁶⁾		$6
R6 Class
2017	$36.97	0.18	10.75	10.93	(0.23)	(1.60)	(1.83)	$46.07	30.86%	0.63%	0.63%	0.52%	0.52%	16%		$233,309
2016	$38.95	0.17	(0.12)	0.05	(0.21)	(1.82)	(2.03)	$36.97	0.29%	0.63%	0.63%	0.54%	0.54%	18%		$83,367
2015	$38.25	0.20	3.28	3.48	(0.25)	(2.53)	(2.78)	$38.95	10.12%	0.63%	0.63%	0.57%	0.57%	16%		$36,951
2014	$34.46	0.05	5.28	5.33	(0.22)	(1.32)	(1.54)	$38.25	16.06%	0.65%	0.66%	0.64%	0.63%	16%		$23,684
2013 ⁽⁷⁾	$31.57	0.05	2.84	2.89	—	—	—	$34.46	9.15%	0.63% ⁽⁵⁾	0.64% ⁽⁵⁾	0.61% ⁽⁵⁾	0.60% ⁽⁵⁾	26% ⁽⁸⁾		$27



Notes to Financial Highlights


(1)	Computed using average shares outstanding throughout the period.


(2)	Total returns are calculated based on the net asset value of the last business day and do not reflect applicable sales charges, if any. Total returns for periods less than one year are not annualized.


(3)	Prior to April 10, 2017, the I Class was referred to as the Institutional Class.


(4)	April 10, 2017 (commencement of sale) through October 31, 2017.


(5)	Annualized.


(6)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2017.


(7)	July 26, 2013 (commencement of sale) through October 31, 2013.


(8)	Portfolio turnover is calculated at the fund level. Percentage indicated was calculated for the year ended October 31, 2013.

Appendix A

The information in this Appendix is part of, and incorporated into, the fund’s prospectus.

Financial Intermediary Sales Charge Reduction and Waiver Information

Sales Charge Reductions and Waivers Available through Merrill Lynch

Front-end Sales Load Waivers on A Class Shares available at Merrill Lynch


•	Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan


•	Shares purchased by or through a 529 Plan


•	Shares purchased through a Merrill Lynch affiliated investment advisory program


•	Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform


•	Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family)


•	Shares exchanged from C Class ( i.e. level-load) shares of the same fund in the month of or following the 10-year anniversary of the purchase date


•	Employees and registered representatives of Merrill Lynch or its affiliates and their family members


•	Directors or trustees of the fund, and employees of the fund’s investment advisor or any of its affiliates, as described in this prospectus


•	Shares purchased from the proceeds of redemptions within the American Century Investments family of mutual funds , provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement)

CDSC Waivers on A and C Shares available at Merrill Lynch


•	Death or disability of the shareholder


•	Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus


•	Return of excess contributions from an IRA Account


•	Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching age 70½


•	Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch


•	Shares acquired through a right of reinstatement


•	Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to a fee based account or platform (applicable to A and C shares only)

Front-end load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent


•	Breakpoints as described in this prospectus.


•	Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Merrill Lynch. Eligible fund

A-1 #

family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets


•	Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable)

A-2 #

Where to Find More Information

Annual and Semiannual Reports

Statement of Additional Information (SAI)

The Securities and Exchange Commission (SEC)



American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-PRS-91786 1803

March 1, 2018

American Century Investments

Statement of Additional Information

American Century Mutual Funds, Inc.



Adaptive Equity Fund	Heritage Fund	Small Cap Growth Fund
Investor Class (AMVIX)	Investor Class (TWHIX)	Investor Class (ANOIX)
I Class (AVDIX)	I Class (ATHIX)	I Class (ANONX)
A Class (AVDAX)	Y Class (ATHYX)	Y Class (ANOYX)
R Class (AVDRX)	A Class (ATHAX)	A Class (ANOAX)
R6 Class (AVDMX)	C Class (AHGCX)	C Class (ANOCX)
	R Class (ATHWX)	R Class (ANORX)
All Cap Growth Fund	R5 Class (ATHGX)	R5 Class (ANOGX)
Investor Class (TWGTX)	R6 Class (ATHDX)	R6 Class (ANODX)
I Class (ACAJX)
A Class (ACAQX)	NT Growth Fund	Sustainable Equity Fund
C Class (ACAHX)	G Class (ACLTX)	Investor Class (AFDIX)
R Class (ACAWX)		I Class (AFEIX)
		Y Class (AFYDX)
Balanced Fund	NT Heritage Fund	A Class (AFDAX)
Investor Class (TWBIX)	G Class (ACLWX)	C Class (AFDCX)
I Class (ABINX)		R Class (AFDRX)
R5 Class (ABGNX)		R5 Class (AFDGX)
	Select Fund
Capital Value Fund	Investor Class (TWCIX)	Ultra ^® Fund
Investor Class (ACTIX)	I Class (TWSIX)	Investor Class (TWCUX)
I Class (ACPIX)	Y Class (ASLWX)	I Class (TWUIX)
A Class (ACCVX)	A Class (TWCAX)	Y Class (AULYX)
	C Class (ACSLX)	A Class (TWUAX)
Growth Fund	R Class (ASERX)	C Class (TWCCX)
Investor Class (TWCGX)	R5 Class (ASLGX)	R Class (AULRX)
I Class (TWGIX)	R6 Class (ASDEX)	R5 Class (AULGX)
Y Class (AGYWX)		R6 Class (AULDX)
A Class (TCRAX)
C Class (TWRCX)
R Class (AGWRX)
R5 Class (AGWUX)
R6 Class (AGRDX)



This statement of additional information adds to the discussion in the funds’ prospectuses dated March 1, 2018, but is not a prospectus. The statement of additional information should be read in conjunction with the funds’ current prospectuses. If you would like a copy of a prospectus, please contact us at one of the addresses or telephone numbers listed on the back cover or visit American Century Investments’ website at americancentury.com.
This statement of additional information incorporates by reference certain information that appears in the funds’ annual reports, which are delivered to all investors. You may obtain a free copy of the funds’ annual reports by calling 1-800-345-2021.

Table of Contents



The Funds’ History	2
Fund Investment Guidelines	4
Adaptive Equity, All Cap Growth, Growth, Heritage, NT Growth, NT Heritage, Select, Small Cap Growth, Sustainable Equity and Ultra	4
Balanced	4
Capital Value	5
Fund Investments and Risks	5
Investment Strategies and Risks	5
Investment Policies	24
Temporary Defensive Measures	25
Portfolio Turnover	26
Disclosure of Portfolio Holdings	26
Management	30
The Board of Directors	30
Officers	36
Code of Ethics	36
Proxy Voting Policies	36
The Funds’ Principal Shareholders	37
Service Providers	37
Investment Advisor	37
Portfolio Managers	42
Transfer Agent and Administrator	46
Sub-Administrator	46
Distributor	47
Custodian Bank	47
Independent Registered Public Accounting Firm	47
Brokerage Allocation	47
Regular Broker-Dealers	49
Information About Fund Shares	49
Multiple Class Structure	50
Valuation of a Fund’s Securities	52
Taxes	53
Federal Income Tax	53
State and Local Taxes	54
Financial Statements	54

Appendix A – Principal Shareholders	A-1
Appendix B – Sales Charges and Payments to Dealers	B-1
Appendix C – Buying and Selling Fund Shares	C-1
Appendix D – Explanation of Fixed-Income Securities Ratings	D-1
Appendix E – Proxy Voting Policies	E-1

The Funds’ History

American Century Mutual Funds, Inc. is a registered open-end management investment company that was organized in 1957 as a Delaware corporation under the name Twentieth Century Investors, Inc. On July 2, 1990, the company reorganized as a Maryland corporation, and in January 1997 it changed its name to American Century Mutual Funds, Inc. Throughout this statement of additional information we refer to American Century Mutual Funds, Inc. as the corporation.

Each fund described in this statement of additional information is a separate series of the corporation and operates for many purposes as if it were an independent company. Each fund has its own investment objective, strategy, management team, assets, and tax identification and stock registration numbers.

Effective December 1, 2009, New Opportunities II Fund was renamed Small Cap Growth Fund. Effective September 30, 2011, Giftrust was renamed All Cap Growth. Effective October 11, 2013, NT Vista was renamed NT Heritage. Effective August 10, 2016, Fundamental Equity was renamed Sustainable Equity. Effective September 7, 2016, Veedot was renamed Adaptive Equity.



Fund	Ticker Symbol	Inception Date
Adaptive Equity
Investor Class	AMVIX	11/30/1999
I Class ¹	AVDIX	08/01/2000
A Class	AVDAX	12/01/2016
R Class	AVDRX	12/01/2016
R6 Class	AVDMX	12/01/2016
All Cap Growth
Investor Class	TWGTX	11/25/1983
I Class ¹	ACAJX	09/30/2011
A Class	ACAQX	09/30/2011
C Class	ACAHX	09/30/2011
R Class	ACAWX	09/30/2011
Balanced
Investor Class	TWBIX	10/20/1988
I Class ¹	ABINX	05/01/2000
R5 Class	ABGNX	04/10/2017
Capital Value
Investor Class	ACTIX	03/31/1999
I Class ¹	ACPIX	03/01/2002
A Class	ACCVX	05/14/2003
Growth
Investor Class	TWCGX	10/31/1958 ³
I Class ¹	TWGIX	06/16/1997
Y Class	AGYWX	04/10/2017
A Class	TCRAX	06/04/1997
C Class	TWRCX	03/01/2010
R Class	AGWRX	08/29/2003
R5 Class	AGWUX	04/10/2017
R6 Class	AGRDX	07/26/2013
Heritage
Investor Class	TWHIX	11/10/1987
I Class ¹	ATHIX	06/16/1997
Y Class	ATHYX	04/10/2017
A Class	ATHAX	07/11/1997
C Class	AHGCX	06/26/2001
R Class	ATHWX	09/28/2007

2 #



Fund	Ticker Symbol	Inception Date
R5 Class	ATHGX	04/10/2017
R6 Class	ATHDX	07/26/2013
NT Growth
G Class ²	ACLTX	05/12/2006
NT Heritage
G Class ²	ACLWX	05/12/2006
Select
Investor Class	TWCIX	10/31/1958 ³
I Class ¹	TWSIX	03/13/1997
Y Class	ASLWX	04/10/2017
A Class	TWCAX	08/08/1997
C Class	ACSLX	01/31/2003
R Class	ASERX	07/29/2005
R5 Class	ASLGX	04/10/2017
R6 Class	ASDEX	07/26/2013
Small Cap Growth
Investor Class	ANOIX	06/01/2001
I Class ¹	ANONX	05/18/2007
Y Class	ANOYX	04/10/2017
A Class	ANOAX	01/31/2003
C Class	ANOCX	01/31/2003
R Class	ANORX	09/28/2007
R5 Class	ANOGX	04/10/2017
R6 Class	ANODX	07/26/2013
Sustainable Equity
Investor Class	AFDIX	07/29/2005
I Class ¹	AFEIX	07/29/2005
Y Class	AFYDX	04/10/2017
A Class	AFDAX	11/30/2004
C Class	AFDCX	11/30/2004
R Class	AFDRX	07/29/2005
R5 Class	AFDGX	04/10/2017
Ultra
Investor Class	TWCUX	11/02/1981
I Class ¹	TWUIX	11/14/1996
Y Class	AULYX	04/10/2017
A Class	TWUAX	10/02/1996
C Class	TWCCX	10/29/2001
R Class	AULRX	08/29/2003
R5 Class	AULGX	04/10/2017
R6 Class	AULDX	07/26/2013


¹	Prior to April 10, 2017, this class was referred to as the Institutional Class.

2 Prior to July 31, 2017, this class was referred to as the Institutional Class.


³	The fund’s actual inception date is October 31, 1958; however, the advisor implemented the fund’s current investment philosophy and practices June 30, 1971.

3 #

Fund Investment Guidelines

This section explains the extent to which the funds’ advisor, American Century Investment Management, Inc. (ACIM), can use various investment vehicles and strategies in managing each fund’s assets. Descriptions of the investment techniques and risks associated with each appear in the section, Investment Strategies and Risks, which begins on page 5. In the case of the funds’ principal investment strategies, these descriptions elaborate upon discussions contained in the prospectuses.

Each fund is diversified as defined in the Investment Company Act of 1940 (the Investment Company Act). Diversified means that, with respect to 75% of its total assets, each fund will not invest more than 5% of its total assets in the securities of a single issuer or own more than 10% of the outstanding voting securities of a single issuer (other than U.S. government securities and securities of other investment companies).

To meet federal tax requirements for qualification as a regulated investment company, each fund must limit its investments so that at the close of each quarter of its taxable year


(1)	no more than 25% of its total assets are invested in the securities of a single issuer (other than the U.S. government or a regulated investment company), and


(2)	with respect to at least 50% of its total assets, no more than 5% of its total assets are invested in the securities of a single issuer (other than the U.S. government or a regulated investment company) and it does not own more than 10% of the outstanding voting securities of a single issuer.

Investments are varied according to what is judged advantageous under changing economic conditions. It is the advisor’s policy to retain maximum flexibility in management without restrictive provisions as to the proportion of one or another class of securities that may be held, subject to the investment restrictions described below. Subject to the specific limitations applicable to a fund, the fund management teams may invest the assets of each fund in varying amounts in other instruments when such a course is deemed appropriate in order to pursue a fund’s investment objective. Unless otherwise noted, all investment restrictions described below and in each fund’s prospectus are measured at the time of the transaction in the security. If market action affecting fund securities (including, but not limited to, appreciation, depreciation or a credit rating event) causes a fund to exceed an investment restriction, the advisor is not required to take immediate action. Under normal market conditions, however, the advisor’s policies and procedures indicate that the advisor will not make any purchases that will make the fund further outside the investment restriction.

Adaptive Equity, All Cap Growth, Growth, Heritage, NT Growth, NT Heritage, Select, Small Cap Growth, Sustainable Equity and Ultra

In general, within the restrictions outlined here and in the funds’ prospectuses, the portfolio managers have broad powers to decide how to invest fund assets, including the power to hold them uninvested.

It is the advisor’s intention that each fund will generally consist of domestic and foreign common stocks, convertible securities and equity-equivalent securities. However, subject to the specific limitations applicable to a fund, the funds’ management teams may invest the assets of each fund in varying amounts in other instruments and may use other techniques, such as those reflected in the Fund Investments and Risks section, when such a course is deemed appropriate to pursue a fund’s investment objective. Senior securities that, in the opinion of the portfolio managers, are high-grade issues also may be purchased for defensive purposes.

So long as a sufficient number of acceptable securities are available, the portfolio managers intend to keep the funds fully invested, regardless of the movement of stock or bond prices generally. However, should a fund’s investment methodology fail to identify sufficient acceptable securities, or for any other reason including the desire to take a temporary defensive position, the funds may invest their assets in money market and other short-term securities. See Temporary Defensive Measures, page 25. In most circumstances, each fund’s actual level of cash and cash equivalents will be less than 10%. The managers may use futures contracts as a way to expose each fund’s cash assets to the market while maintaining liquidity. The managers may not leverage a fund’s portfolio without appropriately segregating assets to cover such positions. See Derivative Instruments, page 9, Futures and Options, page 12 and Short-Term Securities, page 21.

Balanced

In general, within the restrictions outlined here and in the fund’s prospectus, the portfolio managers have broad powers to decide how to invest fund assets, including the power to hold them uninvested. As a matter of fundamental policy, the managers will invest approximately 60% of the fund’s portfolio in equity securities and the remainder in bonds and other fixed-income securities. The equity portion of the fund generally will be invested in equity securities of publicly traded U.S. companies with a market capitalization greater than $2 billion. The fund’s investment approach may cause its equity portion to be more heavily invested in some industries than in others. However, it may not invest more than 25% of its net assets in companies whose principal business activities are in the same industry. In addition, as a diversified investment company, its investments in a single issue are limited, as described above in Fund Investment Guidelines. The portfolio managers also may purchase foreign securities, convertible securities, equity-equivalent securities, futures contracts and similar securities, and short-term securities.

4 #

The fixed-income portion of the fund generally will be invested in a diversified portfolio of high- and medium-grade government, corporate, mortgage-backed, asset-backed and similar securities. There are no maturity restrictions on the individual securities in which the fund invests. The fixed-income portion of the fund will have a weighted average maturity of three and a half years or longer. The managers will actively manage the portfolio, adjusting the portfolio’s weighted average maturity in response to expected changes in interest rates. During periods of rising interest rates, or when rates are expected to rise, a shorter-weighted average maturity may be adopted in order to reduce the effect of bond price declines on the fund’s net asset value. When interest rates are falling, or expected to fall, and bond prices rising, or expected to rise, a longer-weighted average portfolio maturity may be adopted. The restrictions on the quality of the fixed-income securities the fund may purchase are described in the prospectus. For a description of the fixed-income securities rating system, see Explanation of Fixed-Income Securities Ratings, in Appendix D .

To achieve its objective, the fixed-income portion of the fund may invest some or all of its assets in a diversified portfolio of high- and medium-grade debt securities payable in U.S. and up to 10% in foreign currencies. Non-investment-grade securities are subject to greater credit risk and consequently offer higher yields.

The fixed-income portion of Balanced may invest in securities that at the time of purchase have been rated by Moody’s, S&P or another nationally recognized statistical rating organization as having at least the following minimum ratings:



Type of Security	General Credit Limit	Moody’s	S&P
Short-term notes	two highest categories	MIG-2	SP-2
Corporate, sovereign and municipal bonds	five highest categories	Ba	BB
Other types	two highest categories	P-2	A-2

It also may invest in unrated securities if the portfolio managers determine that they are of equivalent credit quality. The fixed-income portion of Balanced also may invest in derivative instruments such as options, futures contracts, options on futures contracts, and swap agreements (including, but not limited to, credit default swap agreements), or in mortgage- or asset-backed securities, provided that such investments are in keeping with the fund’s investment objective.

Corporate, sovereign and municipal bonds that the fund may buy includes securities rated in the fifth highest rating category, which are known as “medium-grade securities.” Medium-grade securities are somewhat speculative. While adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity to pay interest and repay principal by issuers of fourth-category-rated securities (Moody’s Baa, S&P’s BBB), this sensitivity and exposure to adverse or changing economic conditions is heightened in fifth-category-rated (Moody’s Ba, S&P’s BB) securities. The fixed-income portion of Balanced may invest no more than 15% of its total assets in securities rated Ba or BB (or their equivalent).

The fixed-income portion of Balanced may invest in U.S. dollar-denominated securities issued or guaranteed by the U.S. government and its agencies and instrumentalities. Specifically, it may invest in (1) direct obligations of the United States, such as Treasury bills, notes and bonds, which are supported by the full faith and credit of the United States; and (2) obligations (including mortgage-related securities) issued or guaranteed by agencies and instrumentalities of the U.S. government. These agencies and instrumentalities may include, but are not limited to the Government National Mortgage Association, Federal National Mortgage Association, Federal Home Loan Mortgage Corporation, Federal Farm Credit Banks, Federal Home Loan Banks and Resolution Funding Corporation. The securities of some of these agencies and instrumentalities, such as the Government National Mortgage Association, are guaranteed as to principal and interest by the U.S. Treasury, and other securities are supported by the right of the issuer, such as the Federal Home Loan Banks, to borrow from the Treasury. Other obligations, including those issued by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation, are supported only by the credit of the instrumentality.

Capital Value

The portfolio managers will invest primarily in stocks of medium to large companies that the managers believe are undervalued at the time of purchase. The portfolio managers will usually purchase common stocks of U.S. and foreign companies, but they can purchase other types of securities as well, such as domestic and foreign preferred stocks, convertible securities, equity-equivalent securities, notes, bonds and other debt securities.

Fund Investments and Risks

Investment Strategies and Risks

This section describes investment vehicles and techniques the portfolio managers can use in managing a fund’s assets. It also details the risks associated with each, because each investment vehicle and technique contributes to a fund’s overall risk profile.

Asset-Backed Securities (ABS)

ABS are structured like mortgage-backed securities, but instead of mortgage loans or interest in mortgage loans, the underlying assets may include, for example, such items as motor vehicle installment sales or installment loan contracts, leases of various types of real and personal property, home equity loans, student loans, small business loans, and receivables from credit card agreements. The ability

5 #

of an issuer of ABS to enforce its security interest in the underlying assets may be limited. The value of an asset-backed security is affected by changes in the market’s perception of the assets backing the security, the creditworthiness of the servicing agent for the loan pool, the originator of the loans, or the financial institution providing any credit enhancement.

Payments of principal and interest passed through to holders of ABS are typically supported by some form of credit enhancement, such as a letter of credit, surety bond, limited guarantee by another entity or a priority to certain of the borrower’s other securities. The degree of credit enhancement varies, and generally applies to only a fraction of the asset-backed security’s par value until exhausted. If the credit enhancement of an asset-backed security held by the fund has been exhausted, and if any required payments of principal and interest are not made with respect to the underlying loans, the fund may experience losses or delays in receiving payment.

Some types of ABS may be less effective than other types of securities as a means of “locking in” attractive long-term interest rates. One reason is the need to reinvest prepayments of principal; another is the possibility of significant unscheduled prepayments resulting from declines in interest rates. These prepayments would have to be reinvested at lower rates. As a result, these securities may have less potential for capital appreciation during periods of declining interest rates than other securities of comparable maturities, although they may have a similar risk of decline in market value during periods of rising interest rates. Prepayments may also significantly shorten the effective maturities of these securities, especially during periods of declining interest rates. Conversely, during periods of rising interest rates, a reduction in prepayments may increase the effective maturities of these securities, subjecting them to a greater risk of decline in market value in response to rising interest rates than traditional debt securities, and, therefore, potentially increasing the volatility of the fund.

The risks of investing in ABS are ultimately dependent upon the repayment of loans by the individual or corporate borrowers. Although the fund would generally have no recourse against the entity that originated the loans in the event of default by a borrower, ABS typically are structured to mitigate this risk of default.

ABS are generally issued in more than one class, each with different payment terms. Multiple class ABS may be used as a method of providing credit support through creation of one or more classes whose right to payments is made subordinate to the right to such payments of the remaining class or classes. Multiple classes also may permit the issuance of securities with payment terms, interest rates or other characteristics differing both from those of each other and from those of the underlying assets. Examples include so-called strips (ABS entitling the holder to disproportionate interests with respect to the allocation of interest and principal of the assets backing the security), and securities with classes having characteristics such as floating interest rates or scheduled amortization of principal.

Bank Loans

Balanced may invest in bank loans, which include senior secured and unsecured floating rate loans of corporations, partnerships, or other entities. Typically, these loans hold a senior position in the borrower’s capital structure, may be secured by the borrower’s assets and have interest rates that reset frequently. These loans are usually rated non-investment grade by the rating agencies. An economic downturn generally leads to higher non-payment and default rates by borrowers, and a bank loan can lose a substantial part of its value due to these and other adverse conditions and events. However, as compared to junk bonds, senior floating rate loans are typically senior in the capital structure and are often secured by collateral of the borrower. A fund’s investments in bank loans are subject to credit risk, and there is no assurance that the liquidation of collateral would satisfy the claims of the borrower’s obligations in the event of non-payment of scheduled interest or principal, or that the collateral could be readily liquidated. The interest rates on many bank loans reset frequently, and therefore investors are subject to the risk that the return will be less than anticipated when the investment was first made. Most bank loans, like most investment grade bonds, are not traded on any national securities exchange. Bank loans generally have less liquidity than investment grade bonds and there may be less publicly available information about them.

A fund eligible to invest in bank loans may purchase bank loans from other lenders (sometimes referred to as loan assignments) or it may also acquire a participation interest in another lender’s portion of the bank loan. Large bank loans to corporations or governments may be shared or syndicated among several lenders, usually commercial or investment banks. A fund may participate in such syndicates, or can buy part of a loan, becoming a direct lender. Participation interests involve special types of risk, including liquidity risk and the risks of being a lender. Risks of being a lender include credit risk (the borrower’s ability to meet required principal and interest payments under the terms of the loan), industry risk (the borrower’s industry’s exposure to rapid change or regulation), financial risk (the effectiveness of the borrower’s financial policies and use of leverage), liquidity risk (the adequacy of the borrower’s back-up sources of cash), and collateral risk (the sufficiency of the collateral’s value to repay the loan in the event of non-payment or default by the borrower). If a fund purchases a participation interest, it may only be able to enforce its rights through the lender, and may assume the credit risk of the lender in addition to the credit risk of the borrower.

In addition, transactions in bank loans may take more than seven days to settle. As a result, the proceeds from the sale of bank loans may not be readily available to make additional investments or to meet the fund’s redemption obligations. To mitigate these risks, the fund monitors its short-term liquidity needs in light of the longer settlement period of bank loans. Some bank loan interests may not be registered under the Securities Act of 1933 and therefore not afforded the protections of the federal securities laws.

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Collateralized Debt Obligations

The funds may also invest in collateralized debt obligations (CDOs), including collateralized loan obligations (CLOs), collateralized bond obligations (CBOs), and other similarly structured investments. CBOs and CLOs are types of asset backed securities. A CLO is a trust or other special purpose entity that is typically collateralized by a pool of loans, which may include, among others, U.S. and non-U.S. senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. A CBO is generally a trust which is backed by a diversified pool of high risk, below investment grade fixed income securities. The risks of an investment in a CDO depend largely on the type of the collateral backing the obligation and the class of the CDO in which a fund invests. CDOs are subject to credit, interest rate, valuation, prepayment and extension risks. These securities are also subject to risk of default on the underlying asset, particularly during periods of economic downturn. CDOs carry additional risks including, but not limited to, (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments, (ii) the collateral may decline in value or default, (iii) a fund may invest in CDOs that are subordinate to other classes, and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results.

Convertible Securities

A convertible security is a bond, debenture, note, preferred stock or other security that may be converted into or exchanged for a prescribed amount of common stock of the same or a different issuer within a particular time period at a specified price or formula. A convertible security entitles the holder to receive the interest paid or accrued on debt or the dividend paid on preferred stock until the convertible security matures or is redeemed, converted or exchanged. Before conversion or exchange, such securities ordinarily provide a stream of income with generally higher yields than common stocks of the same or similar issuers, but lower than the yield on non-convertible debt. Of course, there can be no assurance of current income because issuers of convertible securities may default on their obligations. In addition, there can be no assurance of capital appreciation because the value of the underlying common stock will fluctuate. Because of the conversion feature, the managers consider some convertible securities to be equity equivalents.

The price of a convertible security will normally fluctuate in some proportion to changes in the price of the underlying asset. A convertible security is subject to risks relating to the activities of the issuer and/or general market and economic conditions. The stream of income typically paid on a convertible security may tend to cushion the security against declines in the price of the underlying asset. However, the stream of income causes fluctuations based upon changes in interest rates and the credit quality of the issuer. In general, the value of a convertible security is a function of (1) its yield in comparison with yields of other securities of comparable maturity and quality that do not have a conversion privilege and (2) its worth, at market value, if converted or exchanged into the underlying common stock. The price of a convertible security often reflects such variations in the price of the underlying common stock in a way that a non-convertible security does not. At any given time, investment value generally depends upon such factors as the general level of interest rates, the yield of similar nonconvertible securities, the financial strength of the issuer and the seniority of the security in the issuer’s capital structure.

A convertible security may be subject to redemption at the option of the issuer at a predetermined price. If a convertible security held by a fund is called for redemption, the fund would be required to permit the issuer to redeem the security and convert it to underlying common stock or to cash, or would sell the convertible security to a third party, which may have an adverse effect on the fund. A convertible security may feature a put option that permits the holder of the convertible security to sell that security back to the issuer at a predetermined price. A fund generally invests in convertible securities for their favorable price characteristics and total return potential and normally would not exercise an option to convert unless the security is called or conversion is forced.

Counterparty Risk

A fund will be exposed to the credit risk of the counterparties with which, or the brokers, dealers and exchanges through which, it deals, whether it engaged in exchange traded or off-exchange transactions. If a fund’s futures commission merchant (FCM) becomes bankrupt or insolvent, or otherwise defaults on its obligations to the fund, the fund may not receive all amounts owed to it in respect of its trading, despite the clearinghouse fully discharging all of its obligations. The Commodity Exchange Act requires an FCM to segregate all funds received from its customers with respect to regulated futures transactions from such FCM’s proprietary funds. If an FCM were not to do so to the full extent required by law, the assets of an account might not be fully protected in the event of the bankruptcy of an FCM. Furthermore, in the event of an FCM’s bankruptcy, a fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of an FCM’s combined customer accounts, even though certain property specifically traceable to the fund (for example, U.S. Treasury bills deposited by the fund) was held by an FCM. FCM bankruptcies have occurred in which customers were unable to recover from the FCM’s estate the full amount of their funds on deposit with such FCM and owing to them. Such situations could arise due to various factors, or a combination of factors, including inadequate FCM capitalization, inadequate controls on customer trading and inadequate customer capital. In addition, in the event of the bankruptcy or insolvency of a clearinghouse, the fund might experience a loss of funds deposited through its FCM as margin with the clearinghouse, a loss of unrealized profits on its open positions, and the loss of funds owed to it as realized profits on closed positions. Such a bankruptcy or insolvency might also cause a substantial delay before the fund could obtain the return of funds owed to it by an FCM who was a member of such clearinghouse.

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Because bi-lateral derivative transactions are traded between counterparties based on contractual relationships, a fund is subject to the risk that a counterparty will not perform its obligations under the related contracts. Although each fund intends to enter into transactions only with counterparties which the advisor believes to be creditworthy, there can be no assurance that a counterparty will not default and that the funds will not sustain a loss on a transaction as a result. In situations where a fund is required to post margin or other collateral with a counterparty, the counterparty may fail to segregate the collateral or may commingle the collateral with the counterparty’s own assets. As a result, in the event of the counterparty’s bankruptcy or insolvency, a fund’s collateral may be subject to the conflicting claims of the counterparty’s creditors, and a fund may be exposed to the risk of a court treating a fund as a general unsecured creditor of the counterparty, rather than as the owner of the collateral.

A fund is subject to the risk that issuers of the instruments in which it invests and trades may default on their obligations under those instruments, and that certain events may occur that have an immediate and significant adverse effect on the value of those instruments. There can be no assurance that an issuer of an instrument in which a fund invests will not default, or that an event that has an immediate and significant adverse effect on the value of an instrument will not occur, and that a fund will not sustain a loss on a transaction as a result.

Transactions entered into by a fund may be executed on various U.S. and non-U.S. exchanges, and may be cleared and settled through various clearinghouses, custodians, depositories and prime brokers throughout the world. Although a fund attempts to execute, clear and settle the transactions through entities the advisor believes to be sound, there can be no assurance that a failure by any such entity will not lead to a loss to a fund.

Cyber Security Risk

As the funds increasingly rely on technology and information systems to operate, they become susceptible to operational risks linked to security breaches in those information systems. Both calculated attacks and unintentional events can cause failures in the funds’ information systems. Cyber attacks can include acquiring unauthorized access to information systems, usually through hacking or the use of malicious software, for purposes of stealing assets or confidential information, corrupting data, or disrupting fund operations. Cyber attacks can also occur without direct access to information systems, for example by making network services unavailable to intended users. Cyber security failures by, or breaches of the information systems of, the advisor, distributors, broker-dealers, other service providers (including, but not limited to, index providers, fund accountants, custodians, transfer agents and administrators), or the issuers of securities the fund invests in may also cause disruptions and impact the funds’ business operations. Breaches in information security may result in financial losses, interference with the funds’ ability to calculate NAV, impediments to trading, inability of fund shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs. Additionally, the funds may incur substantial costs to prevent future cyber incidents. The funds have business continuity plans in the event of, and risk management systems to help prevent, such cyber attacks, but these plans and systems have limitations including the possibility that certain risks have not been identified. Moreover, the funds do not control the cyber security plans and systems of our service providers and other third party business partners. The funds and their shareholders could be negatively impacted as a result.

Debt Securities

Each of the funds, other than Balanced, for which investing in debt securities is required, may invest in debt securities when the portfolio managers believe such securities represent an attractive investment for the fund. The funds may invest in debt securities for income, or as a defensive strategy when the managers believe adverse economic or market conditions exist.

The value of debt securities in which the funds may invest will fluctuate based upon changes in interest rates and the credit quality of the issuer. Debt securities generally will be limited to investment-grade obligations. Investment-grade means that at the time of purchase, such obligations are rated within the four highest categories by a nationally recognized statistical rating organization (for example, at least Baa by Moody’s Investors Service, Inc. or BBB by Standard & Poor’s Corporation), or, if not rated, are of equivalent investment quality as determined by the fund’s advisor. According to Moody’s, bonds rated Baa are medium-grade and possess some speculative characteristics. A BBB rating by S&P indicates S&P’s belief that a security exhibits a satisfactory degree of safety and capacity for repayment, but is more vulnerable to adverse economic conditions and changing circumstances.

Balanced will invest at least 80% of the fund’s fixed-income assets in securities that are rated within the four highest categories by a nationally recognized statistical rating organization. Up to 15% may be invested in securities rated in the fifth category.

A high-yield security is one that has been rated below the four highest categories used by a nationally recognized statistical rating organization, or determined by the investment advisor to be of similar quality. Issuers of these securities often have short financial histories or questionable credit. High-yield bonds, which are below investment grade and sometimes referred to as junk bonds, are regarded as predominantly speculative with respect to the issuer’s continuing ability to meet principal and interest payments.

In addition, the value of a fund’s investments in fixed-income securities will change as prevailing interest rates change. In general, the prices of such securities vary inversely with interest rates. As prevailing interest rates fall, the prices of bonds and other securities that trade on a yield basis generally rise. When prevailing interest rates rise, bond prices generally fall. Depending upon the particular amount and type of fixed-income securities holdings of a fund, these changes may impact the net asset value of that fund’s shares.

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Depositary Receipts

American Depositary Receipts (ADRs) and Global Depositary Receipts (GDRs) are receipts representing ownership of shares of a foreign-based issuer held in trust by a bank or similar financial institution. These are designed for U.S. and global securities markets as alternatives to purchasing underlying securities in their corresponding national markets and currencies. ADRs and GDRs can be sponsored or unsponsored.

Sponsored ADRs and GDRs are certificates in which a bank or financial institution participates with a custodian. Issuers of unsponsored ADRs and GDRs are not contractually obligated to disclose material information in the United States. Therefore, there may not be a correlation between such information and the market value of the unsponsored ADR or GDR.

ADRs are dollar-denominated receipts representing interests in the securities of a foreign issuer. They are issued by U.S. banks and traded on exchanges or over the counter in the United States. Ordinary shares are shares of foreign issuers that are traded abroad and on a U.S. exchange. New York shares are shares that a foreign issuer has allocated for trading in the United States. ADRs, ordinary shares and New York shares all may be purchased with and sold for U.S. dollars, which protect the fund from the foreign settlement risks described under the section titled Foreign Securities , page 10.

Derivative Instruments

To the extent permitted by its investment objectives and policies, each of the funds may invest in instruments that are commonly referred to as derivative instruments. Generally, a derivative instrument is a financial arrangement the value of which is based on, or derived from, a traditional security, asset, or market index. Examples of common derivative instruments include futures contracts, warrants, structured notes, credit default swaps, options contracts, swap transactions and forward currency contracts. Certain derivative instruments are described more accurately as index/structured instruments. Index/structured instruments are derivative instruments whose value or performance is linked to other equity securities, currencies, interest rates, indices or other financial indicators (reference indices).

Some derivative instruments, such as mortgage-related and other asset-backed securities, are in many respects like any other investment, although they may be more volatile or less liquid than more traditional debt securities.

There are many different types of derivative instruments and many different ways to use them. Futures and options are commonly used for traditional hedging purposes to attempt to protect a fund from exposure to changing interest rates, securities prices, or currency exchange rates and for cash management purposes as a low-cost method of gaining exposure to a particular securities market without investing directly in those securities.

The return on a derivative instrument may increase or decrease, depending upon changes in the reference index or instrument to which it relates.

There are risks associated with investing in derivatives, including:


•	the risk that the underlying security, interest rate, market index or other financial asset will not move in the direction the portfolio managers anticipate or that the value of the structured or derivative instrument will not move or react to changes in the underlying security, interest rate, market index or other financial asset as anticipated;


•	the possibility that there may be no liquid secondary market, which may make it difficult or impossible to close out a position when desired;


•	the risk that daily limits on price fluctuations and speculative position limits on exchanges on which a fund may conduct its transactions in derivative instruments may prevent profitable liquidation of positions, subjecting a fund to the potential of greater losses;


•	the risk that adverse price movements in an instrument can result in a loss substantially greater than a fund’s initial investment;


•	the risk that a fund will have an obligation to deliver securities or currency pursuant to a derivatives transaction that such fund does not own at the inception of the derivatives trade;


•	the risk that the counterparty will fail to perform its obligations; and


•	the risk that a fund will be subject to higher volatility because some derivative instruments create leverage.

The funds’ Board of Directors has reviewed the advisor’s policy regarding investments in derivative instruments. That policy specifies factors that must be considered in connection with a purchase of derivative instruments. The policy also establishes a committee that must review certain proposed purchases before the purchases can be made. The advisor will report on fund activity in derivative instruments to the Board of Directors as necessary.

Equity Equivalents

In addition to investing in common stocks, the funds may invest in other equity securities and equity equivalents, including securities that permit a fund to receive an equity interest in an issuer, the opportunity to acquire an equity interest in an issuer, or the opportunity to receive a return on its investment that permits the fund to benefit from the growth over time in the equity of an issuer. Examples of equity securities and equity equivalents include common stock, preferred stock, securities convertible into common stock, stock futures contracts and stock index futures contracts.

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Equity equivalents also may include securities whose value or return is derived from the value or return of a different security.

Foreign Securities

The funds, except Capital Value, may invest an unlimited portion of their assets in the securities of issuers located in foreign countries, including foreign governments, when these securities meet its standards of selection. Capital Value may invest up to 20% of its assets in the securities of issuers located in foreign developed countries. In determining where a company is located, the portfolio managers will consider various factors, including where the company is headquartered, where the company’s principal operations are located, where the company’s revenues are derived, where the principal trading market is located and the country in which the company was legally organized. The weight given to each of these factors will vary depending on the circumstances in a given case.

The funds may make such investments either directly in foreign securities or indirectly by purchasing depositary receipts for foreign securities. Depositary receipts, depositary shares or similar instruments are securities that are listed on exchanges or quoted in the domestic over-the-counter markets in one country, but represent shares of issuers domiciled in another country. Direct investments in foreign securities may be made either on foreign securities exchanges or in the over-the-counter markets.

The funds consider a security to be a developed country security if its issuer is located in the following developed countries list, which is subject to change: Australia, Austria, Belgium, Bermuda, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, The Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom and the United States. Securities of foreign issuers may trade in the U.S. or foreign securities markets.

Investments in foreign securities may present certain risks, including:

Currency Risk. The value of the foreign investments held by the funds may be significantly affected by changes in currency exchange rates. The dollar value of a foreign security generally decreases when the value of the dollar rises against the foreign currency in which the security is denominated and tends to increase when the value of the dollar falls against such currency. In addition, the value of fund assets may be affected by losses and other expenses incurred in converting between various currencies in order to purchase and sell foreign securities, and by currency restrictions, exchange control regulation, currency devaluations and political developments.

Social, Political and Economic Risk. The economies of many of the countries in which the funds invest are not as developed as the economy of the United States and may be subject to significantly different forces. Political or social instability, expropriation, nationalization, confiscatory taxation and limitations on the removal of funds or other assets also could adversely affect the value of investments. Further, the funds may find it difficult or be unable to enforce ownership rights, pursue legal remedies or obtain judgments in foreign courts.

Regulatory Risk. Foreign companies generally are not subject to the regulatory controls imposed on U.S. issuers and, in general, there is less publicly available information about foreign securities than is available about domestic securities. Many foreign companies are not subject to uniform accounting, auditing and financial reporting standards, practices and requirements comparable to those applicable to domestic companies and there may be less stringent investor protection and disclosure standards in some foreign markets. Income from foreign securities owned by the funds may be reduced by a withholding tax at the source, which would reduce dividend income payable to shareholders.

Market and Trading Risk. Brokerage commission rates in foreign countries, which generally are fixed rather than subject to negotiation as in the United States, are likely to be higher. The securities markets in many of the countries in which the funds invest will have substantially less trading volume than the principal U.S. markets. As a result, the securities of some companies in these countries may be less liquid, more volatile and harder to value than comparable U.S. securities. Furthermore, one securities broker may represent all or a significant part of the trading volume in a particular country, resulting in higher trading costs and decreased liquidity due to a lack of alternative trading partners. There generally is less government regulation and supervision of foreign stock exchanges, brokers and issuers, which may make it difficult to enforce contractual obligations.

Clearance and Settlement Risk. Foreign securities markets also have different clearance and settlement procedures, and in certain markets there have been times when settlements have been unable to keep pace with the volume of securities transactions, making it difficult to conduct such transactions. Delays in clearance and settlement could result in temporary periods when assets of the funds are uninvested and no return is earned. The inability of the funds to make intended security purchases due to clearance and settlement problems could cause the funds to miss attractive investment opportunities. Inability to dispose of portfolio securities due to clearance and settlement problems could result either in losses to the funds due to subsequent declines in the value of the portfolio security or, if the fund has entered into a contract to sell the security, liability to the purchaser.

Ownership Risk. Evidence of securities ownership may be uncertain in many foreign countries. As a result, there is a risk that a fund’s trade details could be incorrectly or fraudulently entered at the time of the transaction, resulting in a loss to the fund.

Emerging Markets Risk. Each fund (except Capital Value) may invest its holdings in securities of issuers located in emerging market (developing) countries. The funds consider “emerging market countries” to include all countries that are not considered by the advisor to be developed countries, which are listed on page 10.

Investing in securities of issuers in emerging market countries involves exposure to significantly higher risk than investing in countries with developed markets. Emerging market countries may have economic structures that generally are less diverse and mature, and

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political systems that can be expected to be less stable than those of developed countries. Securities prices in emerging market countries can be significantly more volatile than in developed countries, reflecting the greater uncertainties of investing in lesser developed markets and economies. In particular, emerging market countries may have relatively unstable governments, and may present the risk of nationalization of businesses, expropriation, confiscatory taxation or in certain instances, reversion to closed-market, centrally planned economies. Such countries may also have less protection of property rights than developed countries.

The economies of emerging market countries may be based predominantly on only a few industries or may be dependent on revenues from particular commodities or on international aid or developmental assistance, may be highly vulnerable to changes in local or global trade conditions, and may suffer from extreme and volatile debt burdens or inflation rates. In addition, securities markets in emerging market countries may trade a relatively small number of securities and may be unable to respond effectively to increases in trading volume, potentially resulting in a lack of liquidity and in volatility in the price of securities traded on those markets. Also, securities markets in emerging market countries typically offer less regulatory protection for investors.

Sanctions. The U.S. may impose economic sanctions against companies in various sectors of certain countries. This could limit a fund’s investment opportunities in such countries, impairing the fund’s ability to invest in accordance with its investment strategy and/or to meet its investment objective. For example, a fund may be prohibited from investing in securities issued by companies subject to such sanctions. In addition, the sanctions may require a fund to freeze its existing investments in sanctioned companies, prohibiting the fund from selling or otherwise transacting in these investments. Current sanctions or the threat of potential sanctions may also impair the value or liquidity of affected securities and negatively impact a fund.

Forward Currency Exchange Contracts

Each fund may purchase and sell foreign currency on a spot (i.e., cash) basis and may engage in forward currency contracts, currency options and futures transactions for hedging or any other lawful purpose. See Derivative Instruments, page 9.

The funds expect to use forward currency contracts under two circumstances:


(1)	When the portfolio managers are purchasing or selling a security denominated in a foreign currency and wish to lock in the U.S. dollar price of that security, the portfolio managers would be able to enter into a forward currency contract to do so;

(2)

When the portfolio managers believe that the currency of a particular foreign country may suffer a substantial decline against the U.S. dollar, a fund would be able to enter into a forward currency contract to sell foreign currency for a fixed U.S. dollar amount approximating the value of some or all of its portfolio securities either denominated in, or whose value is tied to, such foreign currency.

In the first circumstance, when a fund enters into a trade for the purchase or sale of a security denominated in a foreign currency, it may be desirable to establish (lock in) the U.S. dollar cost or proceeds. By entering into forward currency contracts in U.S. dollars for the purchase or sale of a foreign currency involved in an underlying security transaction, the fund will be able to protect itself against a possible loss between trade and settlement dates resulting from the adverse change in the relationship between the U.S. dollar and the subject foreign currency.

In the second circumstance, when the portfolio managers believe that the currency of a particular country may suffer a substantial decline relative to the U.S. dollar, a fund could enter into a forward currency contract to sell for a fixed dollar amount the amount in foreign currencies approximating the value of some or all of its portfolio securities either denominated in, or whose value is tied to, such foreign currency. The fund will generally cover outstanding forward contracts by maintaining liquid portfolio securities denominated in, or whose value is tied to, the currency underlying the forward contract or the currency being hedged. To the extent that the fund is not able to cover its forward currency positions with underlying portfolio securities, the fund will segregate on its records cash or other liquid assets having a value equal to the aggregate amount of the fund’s commitments under the forward currency contracts.

The precise matching of forward currency contracts in the amounts and values of securities involved generally would not be possible because the future values of such foreign currencies will change as a consequence of market movements in the values of those securities between the date the forward currency contract is entered into and the date it matures. Predicting short-term currency market movements is extremely difficult, and the successful execution of short-term hedging strategy is highly uncertain. Normally, consideration of the prospect for currency parities will be incorporated into the long-term investment decisions made with respect to overall diversification strategies. However, the portfolio managers believe that it is important to have flexibility to enter into such forward currency contracts when they determine that a fund’s best interests may be served.

When the forward currency contract matures, the fund may either sell the portfolio security and make delivery of the foreign currency, or it may retain the security and terminate the obligation to deliver the foreign currency by purchasing an offsetting forward currency contract with the same currency trader that obligates the fund to purchase, on the same maturity date, the same amount of the foreign currency.

It is impossible to forecast with absolute precision the market value of portfolio securities at the expiration of the forward currency contract. Accordingly, it may be necessary for a fund to purchase additional foreign currency on the spot market (and bear the expense of such purchase) if the market value of the security is less than the amount of foreign currency the fund is obligated to deliver and if a decision is made to sell the security to make delivery of the foreign currency the fund is obligated to deliver.

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Futures and Options

Each fund may enter into futures contracts, options or options on futures contracts. Futures contracts provide for the sale by one party and purchase by another party of a specific security at a specified future time and price. Generally, futures transactions will be used to:


•	protect against a decline in market value of the fund’s securities (taking a short futures position),


•	protect against the risk of an increase in market value for securities in which the fund generally invests at a time when the fund is not fully invested (taking a long futures position), or


•	provide a temporary substitute for the purchase of an individual security that may not be purchased in an orderly fashion.

Some futures and options strategies, such as selling futures, buying puts and writing calls, hedge a fund’s investments against price fluctuations. Other strategies, such as buying futures, writing puts and buying calls, tend to increase market exposure.

Although other techniques may be used to control a fund’s exposure to market fluctuations, the use of futures contracts may be a more effective means of hedging this exposure. While a fund pays brokerage commissions in connection with opening and closing out futures positions, these costs are lower than the transaction costs incurred in the purchase and sale of the underlying securities.

For example, the sale of a future by a fund means the fund becomes obligated to deliver the security (or securities, in the case of an index future) at a specified price on a specified date. The purchase of a future means the fund becomes obligated to buy the security (or securities) at a specified price on a specified date. The portfolio managers may engage in futures and options transactions, provided that the transactions are consistent with the fund’s investment objectives. The managers also may engage in futures and options transactions based on specific securities, such as U.S. Treasury bonds or notes. Futures contracts are traded on national futures exchanges. Futures exchanges and trading are regulated under the Commodity Exchange Act by the Commodity Futures Trading Commission (CFTC), a U.S. government agency.

Index futures contracts differ from traditional futures contracts in that when delivery takes place, no stocks or bonds change hands. Instead, these contracts settle in cash at the spot market value of the index. Although other types of futures contracts by their terms call for actual delivery or acceptance of the underlying securities, in most cases the contracts are closed out before the settlement date. A futures position may be closed by taking an opposite position in an identical contract (i.e., buying a contract that has previously been sold or selling a contract that has previously been bought).

Unlike when the fund purchases or sells a security, no price is paid or received by the fund upon the purchase or sale of the future. Initially, the fund will be required to deposit an amount of cash or securities equal to a varying specified percentage of the contract amount. This amount is known as initial margin. The margin deposit is intended to ensure completion of the contract (delivery or acceptance of the underlying security) if it is not terminated prior to the specified delivery date. A margin deposit does not constitute a margin transaction for purposes of the fund’s investment restrictions. Minimum initial margin requirements are established by the futures exchanges and may be revised.

In addition, brokers may establish margin deposit requirements that are higher than the exchange minimums. Cash held in the margin accounts generally is not income-producing. However, coupon bearing securities, such as Treasury bills and bonds, held in margin accounts generally will earn income. Subsequent payments to and from the broker, called variation margin, will be made on a daily basis as the price of the underlying security or index fluctuates, making the future more or less valuable, a process known as marking the contract to market. Changes in variation margin are recorded by the fund as unrealized gains or losses. At any time prior to expiration of the future, the fund may elect to close the position by taking an opposite position. A final determination of variation margin is then made; additional cash is required to be paid by or released to the fund and the fund realizes a loss or gain.

By buying a put option, a fund obtains the right (but not the obligation) to sell the instrument underlying the option at a fixed strike price and in return a fund pays the current market price for the option (known as the option premium). A fund may terminate its position in a put option it has purchased by allowing it to expire, by exercising the option or by entering into an offsetting transaction, if a liquid market exists. If the option is allowed to expire, a fund will lose the entire premium it paid. If a fund exercises a put option on a security, it will sell the instrument underlying the option at the strike price. The buyer of a typical put option can expect to realize a gain if the value of the underlying instrument falls substantially. However, if the price of the instrument underlying the option does not fall enough to offset the cost of purchasing the option, a put buyer can expect to suffer a loss limited to the amount of the premium paid, plus related transaction costs.

The features of call options are essentially the same as those of put options, except that the buyer of a call option obtains the right to purchase, rather than sell, the instrument underlying the option at the option’s strike price. The buyer of a typical call option can expect to realize a gain if the value of the underlying instrument increases substantially and can expect to suffer a loss if security prices do not rise sufficiently to offset the cost of the option.

When a fund writes a put option, it takes the opposite side of the transaction from the option’s buyer. In return for the receipt of the premium, a fund assumes the obligation to pay the strike price for the instrument underlying the option if the other party to the option chooses to exercise it. A fund may seek to terminate its position in a put option it writes before exercise by purchasing an offsetting option in the market at its current price. Otherwise, a fund must continue to be prepared to pay the strike price while the option is outstanding, regardless of price changes, and must continue to post margin as discussed below. If the price of the underlying instrument rises, a put writer would generally realize as profit the premium it received. If the price of the underlying instrument

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remains the same over time, it is likely that the writer will also profit, because it should be able to close out the option at a lower price. If the price of the underlying instrument falls, the put writer would expect to suffer a loss.

A fund writing a call option is obligated to sell or deliver the option’s underlying instrument in return for the strike price upon exercise of the option. Writing calls generally is a profitable strategy if the price of the underlying instrument remains the same or falls. A call writer offsets part of the effect of a price decline by receipt of the option premium, but gives up some ability to participate in security price increases. The writer of an exchange traded put or call option on a security, an index of securities or a futures contract is required to deposit cash or securities or a letter of credit as margin and to make mark to market payments of variation margin as the position becomes unprofitable.

Risks Related to Futures and Options Transactions

Futures and options prices can be volatile, and trading in these markets involves certain risks. If the portfolio managers apply a hedge at an inappropriate time or judge interest rate or equity market trends incorrectly, futures and options strategies may lower a fund’s return.

A fund could suffer losses if it is unable to close out its position because of an illiquid secondary market. Futures contracts may be closed out only on an exchange that provides a secondary market for these contracts, and there is no assurance that a liquid secondary market will exist for any particular futures contract at any particular time. Consequently, it may not be possible to close a futures position when the portfolio managers consider it appropriate or desirable to do so. In the event of adverse price movements, a fund would be required to continue making daily cash payments to maintain its required margin. If the fund had insufficient cash, it might have to sell portfolio securities to meet daily margin requirements at a time when the portfolio managers would not otherwise elect to do so. In addition, a fund may be required to deliver or take delivery of instruments underlying futures contracts it holds. The portfolio managers will seek to minimize these risks by limiting the futures contracts entered into on behalf of the funds to those traded on national futures exchanges and for which there appears to be a liquid secondary market.

A fund could suffer losses if the prices of its futures and options positions were poorly correlated with its other investments, or if securities underlying futures contracts purchased by a fund had different maturities than those of the portfolio securities being hedged. Such imperfect correlation may give rise to circumstances in which a fund loses money on a futures contract at the same time that it experiences a decline in the value of its hedged portfolio securities. A fund also could lose margin payments it has deposited with a margin broker, if, for example, the broker became bankrupt.

Most futures exchanges limit the amount of fluctuation permitted in futures contract prices during a single trading day. The daily limit establishes the maximum amount that the price of a futures contract may vary either up or down from the previous day’s settlement price at the end of the trading session. Once the daily limit has been reached in a particular type of contract, no trades may be made on that day at a price beyond the limit. However, the daily limit governs only price movement during a particular trading day and, therefore, does not limit potential losses. In addition, the daily limit may prevent liquidation of unfavorable positions. Futures contract prices have occasionally moved to the daily limit for several consecutive trading days with little or no trading, thereby preventing prompt liquidation of futures positions and subjecting some futures traders to substantial losses.

Options on Futures

By purchasing an option on a futures contract, a fund obtains the right, but not the obligation, to sell the futures contract (a put option) or to buy the contract (a call option) at a fixed strike price. A fund can terminate its position in a put option by allowing it to expire or by exercising the option. If the option is exercised, the fund completes the sale of the underlying security at the strike price. Purchasing an option on a futures contract does not require a fund to make margin payments unless the option is exercised.

Although they do not currently intend to do so, the funds may write (or sell) call options that obligate them to sell (or deliver) the option’s underlying instrument upon exercise of the option. While the receipt of option premiums would mitigate the effects of price declines, the funds would give up some ability to participate in a price increase on the underlying security. If a fund were to engage in options transactions, it would own the futures contract at the time a call were written and would keep the contract open until the obligation to deliver it pursuant to the call expired.

Restrictions on the Use of Futures Contracts and Options

Each fund may enter into futures contracts, options, options on futures contracts, or swap agreements as permitted by its investment policies and the Commodity Futures Trading Commission (CFTC) rules. The advisor to each fund has claimed an exclusion from the definition of the term “commodity pool operator” under the Commodity Exchange Act and, therefore, the advisor is not subject to registration or regulation as a commodity pool operator under that Act with respect to its provision of services to each fund.

The CFTC recently adopted certain rule amendments that may impose additional limits on the ability of a fund to invest in futures contracts, options on futures, swaps, and certain other commodity interests if its investment advisor does not register with the CFTC as a “commodity pool operator” with respect to such fund. It is expected that the funds will be able to execute their investment strategies within the limits adopted by the CFTC’s rules. As a result, the advisor does not intend to register with the CFTC as a commodity pool operator on behalf of any of the funds. In the event that one of the funds engages in transactions that necessitate future registration with the CFTC, the advisor will register as a commodity pool operator and comply with applicable regulations with respect to that fund.

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To the extent required by law, each fund will segregate cash, cash equivalents or other appropriate liquid securities on its records in an amount sufficient to cover its obligations under the futures contracts, options and swap agreements.

Inflation-linked Securities

Balanced may purchase inflation-linked securities issued by the U.S. Treasury, U.S. government agencies and instrumentalities other than the U.S. Treasury, and entities other than the U.S. Treasury or U.S. government agencies and instrumentalities.

Inflation-linked securities are designed to offer a return linked to inflation, thereby protecting future purchasing power of the money invested in them. However, inflation-linked securities provide this protected return only if held to maturity. In addition, inflation-linked securities may not trade at par value. Real interest rates (the market rate of interest less the anticipated rate of inflation) change over time as a result of many factors, such as what investors are demanding as a true value for money. When real rates do change, inflation-linked securities prices will be more sensitive to these changes than conventional bonds, because these securities were sold originally based upon a real interest rate that is no longer prevailing. Should market expectations for real interest rates rise, the price of inflation-linked securities and the share price of a fund holding these securities will fall. Investors in the funds should be prepared to accept not only this share price volatility but also the possible adverse tax consequences it may cause.

An investment in securities featuring inflation-indexed principal and/or interest involves factors not associated with more traditional fixed-principal securities. Such factors include the possibility that the inflation index may be subject to significant changes, that changes in the index may or may not correlate to changes in interest rates generally or changes in other indices, or that the resulting interest may be greater or less than that payable on other securities of similar maturities. In the event of sustained deflation, it is possible that the amount of semiannual interest payments, the inflation-indexed principal of the security or the value of the stripped components will decrease. If any of these possibilities are realized, a fund’s net asset value could be negatively affected.

Inflation-linked Treasury Securities

Inflation-linked U.S. Treasury securities are U.S. Treasury securities with a final value and interest payment stream linked to the inflation rate. Inflation-linked U.S. Treasury securities may be issued in either note or bond form. Inflation-linked U.S. Treasury notes have maturities of at least one year, but not more than 10 years. Inflation-linked U.S. Treasury bonds have maturities of more than 10 years.

Inflation-linked U.S. Treasury securities may be attractive to investors seeking an investment backed by the full faith and credit of the U.S. government that provides a return in excess of the rate of inflation. These securities were first sold in the U.S. market in January 1997. Inflation-linked U.S. Treasury securities are auctioned and issued on a quarterly basis.

Structure and Inflation Index – The principal value of inflation-linked U.S. Treasury securities will be adjusted to reflect changes in the level of inflation. The index for measuring the inflation rate for inflation-linked U.S. Treasury securities is the non-seasonally adjusted U.S. City Average All Items Consumer Price Index for All Urban Consumers (Consumer Price Index) published monthly by the U.S. Department of Labor’s Bureau of Labor Statistics.

Semiannual coupon interest payments are made at a fixed percentage of the inflation-linked principal value. The coupon rate for the semiannual interest rate of each issuance of inflation-linked U.S. Treasury securities is determined at the time the securities are sold to the public (i.e., by competitive bids in the auction). The coupon rate will likely reflect real yields available in the U.S. Treasury market; real yields are the prevailing yields on U.S. Treasury securities with similar maturities, less then-prevailing inflation expectations. While a reduction in inflation will cause a reduction in the interest payment made on the securities, the repayment of principal at the maturity of the security is guaranteed by the U.S. Treasury to be no less than the original face or par amount of the security at the time of issuance.

Indexing Methodology - The principal value of inflation-linked U.S. Treasury securities will be indexed, or adjusted, to account for changes in the Consumer Price Index. Semiannual coupon interest payment amounts will be determined by multiplying the inflation-linked principal amount by one-half the stated rate of interest on each interest payment date.

Taxation - The taxation of inflation-linked U.S. Treasury securities is similar to the taxation of conventional bonds. Both interest payments and the difference between original principal and the inflation-indexed principal will be treated as interest income subject to taxation. Interest payments are taxable when received or accrued. The inflation adjustment to the principal is subject to tax in the year the adjustment is made, not at maturity of the security when the cash from the repayment of principal is received. If an upward adjustment has been made, investors in non-tax-deferred accounts will pay taxes on this amount currently. Decreases in the indexed principal can be deducted only from current or previous interest payments reported as income.

Inflation-linked U.S. Treasury securities therefore have a potential cash flow mismatch to an investor, because investors must pay taxes on the inflation-indexed principal before the repayment of principal is received. It is possible that, particularly for high income tax bracket investors, inflation-linked U.S. Treasury securities would not generate enough cash in a given year to cover the tax liability they could create. This is similar to the current tax treatment for zero-coupon bonds and other discount securities. If inflation-linked U.S. Treasury securities are sold prior to maturity, capital losses or gains are realized in the same manner as traditional bonds.

Investors in a fund will receive dividends that represent both the interest payments and the principal adjustments of the inflation-linked securities held in the fund’s portfolio. An investment in a fund may, therefore, be a means to avoid the cash flow mismatch

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associated with a direct investment in inflation-linked securities. For more information about taxes and their effect on you as an investor in the funds, see Taxes, page 53.

U.S. Government Agencies

A number of U.S. government agencies and instrumentalities other than the U.S. Treasury may issue inflation-linked securities. Some U.S. government agencies have issued inflation-linked securities whose design mirrors that of the inflation-linked U.S. Treasury securities described above.

Other Entities

Entities other than the U.S. Treasury or U.S. government agencies and instrumentalities may issue inflation-linked securities. While some entities have issued inflation-linked securities whose design mirrors that of the inflation-linked U.S. Treasury securities described above, others utilize different structures. For example, the principal value of these securities may be adjusted with reference to the Consumer Price Index, but the semiannual coupon interest payments are made at a fixed percentage of the original issue principal. Alternatively, the principal value may remain fixed, but the coupon interest payments may be adjusted with reference to the Consumer Price Index.

Initial Public Offerings

The funds may invest in initial public offerings (IPOs) of common stock or other equity securities issued by a company. The purchase of securities in an IPO may involve higher transaction costs than those associated with the purchase of securities already traded on exchanges or other established markets. In addition to the risks associated with equity securities generally, IPO securities may be subject to additional risk due to factors such as the absence of a prior public market, unseasoned trading and speculation, a potentially small number of securities available for trading, limited information about the issuer and other factors. These factors may cause IPO shares to be volatile in price. While a fund may hold IPO securities for a period of time, it may sell them in the aftermarket soon after the purchase, which could increase portfolio turnover and lead to increased expenses such as commissions and transaction costs. Investments in IPOs could have a magnified impact (either positive or negative) on performance if a fund’s assets are relatively small. The impact of IPOs on a fund’s performance may tend to diminish as assets grow.

Inverse Floaters

Balanced may invest in inverse floaters. An inverse floater is a type of derivative security that bears an interest rate that moves inversely to market interest rates. As market interest rates rise, the interest rate on inverse floaters goes down, and vice versa. Generally, this is accomplished by expressing the interest rate on the inverse floater as an above-market fixed rate of interest, reduced by an amount determined by reference to a market-based or bond-specific floating interest rate (as well as by any fees associated with administering the inverse floater program).

Inverse floaters may be issued in conjunction with an equal amount of Dutch Auction floating-rate bonds (floaters), or a market-based index may be used to set the interest rate on these securities. A Dutch Auction is an auction system in which the price of the security is gradually lowered until it meets a responsive bid and is sold. Floaters and inverse floaters may be brought to market by (1) a broker-dealer who purchases fixed-rate bonds and places them in a trust, or (2) an issuer seeking to reduce interest expenses by using a floater/inverse floater structure in lieu of fixed-rate bonds.

In the case of a broker-dealer structured offering (where underlying fixed-rate bonds have been placed in a trust), distributions from the underlying bonds are allocated to floater and inverse floater holders in the following manner:


(i)	Floater holders receive interest based on rates set at a six-month interval or at a Dutch Auction, which is typically held every 28 to 35 days. Current and prospective floater holders bid the minimum interest rate that they are willing to accept on the floaters, and the interest rate is set just high enough to ensure that all of the floaters are sold.


(ii)	Inverse floater holders receive all of the interest that remains, if any, on the underlying bonds after floater interest and auction fees are paid. The interest rates on inverse floaters may be significantly reduced, even to zero, if interest rates rise.

Procedures for determining the interest payment on floaters and inverse floaters brought to market directly by the issuer are comparable, although the interest paid on the inverse floaters is based on a presumed coupon rate that would have been required to bring fixed-rate bonds to market at the time the floaters and inverse floaters were issued.

Where inverse floaters are issued in conjunction with floaters, inverse floater holders may be given the right to acquire the underlying security (or to create a fixed-rate bond) by calling an equal amount of corresponding floaters. The underlying security may then be held or sold. However, typically, there are time constraints and other limitations associated with any right to combine interests and claim the underlying security.

Floater holders subject to a Dutch Auction procedure generally do not have the right to put back their interests to the issuer or to a third party. If a Dutch Auction fails, the floater holder may be required to hold its position until the underlying bond matures, during which time interest on the floater is capped at a predetermined rate.

The secondary market for floaters and inverse floaters may be limited. The market value of inverse floaters tends to be significantly more volatile than fixed-rate bonds.

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Investment in Issuers with Limited Operating Histories

The funds may invest the following portions of their assets in the equity securities of issuers with limited operating histories: Balanced, Growth, NT Growth, Select, Sustainable Equity and Ultra up to 5%; Adaptive Equity, All Cap Growth, Heritage, NT Heritage and Small Cap Growth up to 10%. Capital Value may invest an unlimited portion of its equity securities in issuers with limited operating histories. The managers consider an issuer to have a limited operating history if that issuer has a record of less than three years of continuous operation. The managers will consider periods of capital formation, incubation, consolidations, and research and development in determining whether a particular issuer has a record of three years of continuous operation.

Investments in securities of issuers with limited operating histories may involve greater risks than investments in securities of more mature issuers. By their nature, such issuers present limited operating histories and financial information upon which the managers may base their investment decision on behalf of the funds. In addition, financial and other information regarding such issuers, when available, may be incomplete or inaccurate.

For purposes of this limitation, “issuers” refers to operating companies that issue securities for the purposes of issuing debt or raising capital as a means of financing their ongoing operations. It does not, however, refer to entities, corporate or otherwise, that are created for the express purpose of securitizing obligations or income streams. For example, a fund’s investments in a trust created for the purpose of pooling mortgage obligations would not be subject to the limitation.

Loans of Portfolio Securities

In order to realize additional income, a fund may lend its portfolio securities. Such loans may not exceed one-third of the fund’s total assets valued at market, however, this limitation does not apply to purchases of debt securities in accordance with the fund’s investment objectives, policies and limitations, or to repurchase agreements with respect to portfolio securities.

Cash received from the borrower as collateral through loan transactions may be invested in other eligible securities. Investing this cash subjects that investment to market appreciation or depreciation. If a borrower defaults on a securities loan because of insolvency or other reasons, the lending fund could experience delays or costs in recovering the securities it loaned; if the value of the loaned securities increased over the value of the collateral, the fund could suffer a loss. To minimize the risk of default on securities loans, the advisor adheres to guidelines prescribed by the Board of Directors governing lending of securities. These guidelines strictly govern:


(1)	the type and amount of collateral that must be received by the fund;


(2)	the circumstances under which additions to that collateral must be made by borrowers;


(3)	the return to be received by the fund on the loaned securities;


(4)	the limitations on the percentage of fund assets on loan; and


(5)	the credit standards applied in evaluating potential borrowers of portfolio securities.

In addition, the guidelines require that the fund have the option to terminate any loan of a portfolio security at any time and set requirements for recovery of securities from borrowers.

Mortgage-Backed Securities

Background

A mortgage-backed security represents an ownership interest in a pool of mortgage loans. The loans are made by financial institutions to finance home and other real estate purchases. As the loans are repaid, investors receive payments of both interest and principal.

Like fixed-income securities such as U.S. Treasury bonds, mortgage-backed securities pay a stated rate of interest during the life of the security. However, unlike a bond, which returns principal to the investor in one lump sum at maturity, mortgage-backed securities return principal to the investor in increments during the life of the security.

Because the timing and speed of principal repayments vary, the cash flow on mortgage-backed securities is irregular. If mortgage holders sell their homes, refinance their loans, prepay their mortgages or default on their loans, the principal is distributed pro rata to investors.

As with other fixed-income securities, the prices of mortgage-backed securities fluctuate in response to changing interest rates; when interest rates fall, the prices of mortgage-backed securities rise, and vice versa. Changing interest rates have additional significance for mortgage-backed securities investors, however, because they influence prepayment rates (the rates at which mortgage holders prepay their mortgages), which in turn affect the yields on mortgage-backed securities. When interest rates decline, prepayment rates generally increase. Mortgage holders take advantage of the opportunity to refinance their mortgages at lower rates with lower monthly payments. When interest rates rise, mortgage holders are less inclined to refinance their mortgages. The effect of prepayment activity on yield depends on whether the mortgage-backed security was purchased at a premium or at a discount.

A fund may receive principal sooner than it expected because of accelerated prepayments. Under these circumstances, the fund might have to reinvest returned principal at rates lower than it would have earned if principal payments were made on schedule. Conversely, a mortgage-backed security may exceed its anticipated life if prepayment rates decelerate unexpectedly. Under these circumstances, a fund might miss an opportunity to earn interest at higher prevailing rates.

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GNMA Certificates

The Government National Mortgage Association (GNMA) is a wholly owned corporate instrumentality of the United States within the Department of Housing and Urban Development. The National Housing Act of 1934 (Housing Act), as amended, authorizes GNMA to guarantee the timely payment of interest and repayment of principal on certificates that are backed by a pool of mortgage loans insured by the Federal Housing Administration under the Housing Act, or by Title V of the Housing Act of 1949 (FHA Loans), or guaranteed by the Department of Veterans Affairs under the Servicemen’s Readjustment Act of 1944 (VA Loans), as amended, or by pools of other eligible mortgage loans. The Housing Act provides that the full faith and credit of the U.S. government is pledged to the payment of all amounts that may be required to be paid under any guarantee. GNMA has unlimited authority to borrow from the U.S. Treasury in order to meet its obligations under this guarantee.

GNMA certificates represent a pro rata interest in one or more pools of the following types of mortgage loans: (a) fixed-rate level payment mortgage loans; (b) fixed-rate graduated payment mortgage loans (GPMs); (c) fixed-rate growing equity mortgage loans (GEMs); (d) fixed-rate mortgage loans secured by manufactured (mobile) homes (MHs); (e) mortgage loans on multifamily residential properties under construction (CLCs); (f) mortgage loans on completed multifamily projects (PLCs); (g) fixed-rate mortgage loans that use escrowed funds to reduce the borrower’s monthly payments during the early years of the mortgage loans (buydown mortgage loans); and (h) mortgage loans that provide for payment adjustments based on periodic changes in interest rates or in other payment terms of the mortgage loans.

Fannie Mae Certificates

The Federal National Mortgage Association (FNMA or Fannie Mae) is a federally chartered and privately owned corporation established under the Federal National Mortgage Association Charter Act. Fannie Mae was originally established in 1938 as a U.S. government agency designed to provide supplemental liquidity to the mortgage market and was reorganized as a stockholder-owned and privately managed corporation by legislation enacted in 1968. Fannie Mae acquires capital from investors who would not ordinarily invest in mortgage loans directly and thereby expands the total amount of funds available for housing. This money is used to buy home mortgage loans from local lenders, replenishing the supply of capital available for mortgage lending.

Fannie Mae certificates represent a pro rata interest in one or more pools of FHA Loans, VA Loans, or, most commonly, conventional mortgage loans (i.e., mortgage loans that are not insured or guaranteed by a government agency) of the following types: (a) fixed-rate level payment mortgage loans; (b) fixed-rate growing equity mortgage loans; (c) fixed-rate graduated payment mortgage loans; (d) adjustable-rate mortgage loans; and (e) fixed-rate mortgage loans secured by multifamily projects.

Fannie Mae certificates entitle the registered holder to receive amounts representing a pro rata interest in scheduled principal and interest payments (at the certificate’s pass-through rate, which is net of any servicing and guarantee fees on the underlying mortgage loans), any principal prepayments, and a proportionate interest in the full principal amount of any foreclosed or otherwise liquidated mortgage loan. The full and timely payment of interest and repayment of principal on each Fannie Mae certificate is guaranteed by Fannie Mae; this guarantee is not backed by the full faith and credit of the U.S. government. See Recent Events Regarding Fannie Mae and Freddie Mac below.

Freddie Mac Certificates

The Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac) is a corporate instrumentality of the United States created pursuant to the Emergency Home Finance Act of 1970 (FHLMC Act), as amended. Freddie Mac was established primarily for the purpose of increasing the availability of mortgage credit. Its principal activity consists of purchasing first-lien conventional residential mortgage loans (and participation interests in such mortgage loans) and reselling these loans in the form of mortgage-backed securities, primarily Freddie Mac certificates.

Freddie Mac certificates represent a pro rata interest in a group of mortgage loans (a Freddie Mac certificate group) purchased by Freddie Mac. The mortgage loans underlying Freddie Mac certificates consist of fixed- or adjustable-rate mortgage loans with original terms to maturity of between 10 and 30 years, substantially all of which are secured by first-liens on one- to four-family residential properties or multifamily projects. Each mortgage loan must meet standards set forth in the FHLMC Act. A Freddie Mac certificate group may include whole loans, participation interests in whole loans, undivided interests in whole loans, and participations composing another Freddie Mac certificate group.

Freddie Mac guarantees to each registered holder of a Freddie Mac certificate the timely payment of interest at the rate provided for by the certificate. Freddie Mac also guarantees ultimate collection of all principal on the related mortgage loans, without any offset or deduction, but generally does not guarantee the timely repayment of principal. Freddie Mac may remit principal at any time after default on an underlying mortgage loan, but no later than 30 days following (a) foreclosure sale, (b) payment of a claim by any mortgage insurer, or (c) the expiration of any right of redemption, whichever occurs later, and in any event no later than one year after demand has been made upon the mortgager for accelerated payment of principal. Obligations guaranteed by Freddie Mac are not backed by the full faith and credit pledge of the U.S. government. See Recent Events Regarding Fannie Mae and Freddie Mac below.

Recent Events Regarding Fannie Mae and Freddie Mac

Since September 2008, Fannie Mae and Freddie Mac have operated under a conservatorship administered by the Federal Housing Finance Agency (FHFA). In addition, the U.S. Treasury has entered into senior preferred stock purchase agreements (PSPA) to provide

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additional financing to Fannie Mae and Freddie Mac. Three amendments have been made to the original agreement and PSPA, each of which has further strengthened the credit worthiness of these entities. The most recent amendment eliminates the requirement to pay a 10% preferred stock dividend in exchange for a quarterly sweep of net worth. This in turn eliminates any need to borrow from the Treasury to pay dividends and was intended to strengthen the financial commitment to these enterprises.

The future status and role of Fannie Mae or Freddie Mac could be impacted by, among other things, the actions taken and restrictions placed on Fannie Mae or Freddie Mac by the FHFA in its role as conservator, the restrictions placed on Fannie Mae’s or Freddie Mac’s operations and activities under the senior preferred stock purchase agreements, market responses to developments at Fannie Mae or Freddie Mac, and future legislative, regulatory, or legal action that alters the operations, ownership, structure and/or mission of Fannie Mae or Freddie Mac, each of which may, in turn, impact the value of, and cash flows on, any securities guaranteed by Fannie Mae and Freddie Mac.

Collateralized Mortgage Obligations (CMOs)

A CMO is a multiclass bond backed by a pool of mortgage pass-through certificates or mortgage loans. CMOs may be collateralized by (a) GNMA, Fannie Mae or Freddie Mac pass-through certificates; (b) unsecured mortgage loans insured by the Federal Housing Administration or guaranteed by the Department of Veterans’ Affairs; (c) unsecuritized conventional mortgages; or (d) any combination thereof.

In structuring a CMO, an issuer distributes cash flow from the underlying collateral over a series of classes called tranches. Each CMO is a set of two or more tranches, with average lives and cash flow patterns designed to meet specific investment objectives. The average life expectancies of the different tranches in a four-part deal, for example, might be two, five, seven and 20 years.

As payments on the underlying mortgage loans are collected, the CMO issuer pays the coupon rate of interest to the bondholders in each tranche. At the outset, scheduled and unscheduled principal payments go to investors in the first tranches. Investors in later tranches do not begin receiving principal payments until the prior tranches are paid off. This basic type of CMO is known as a sequential pay or plain vanilla CMO.

Some CMOs are structured so that the prepayment or market risks are transferred from one tranche to another. Prepayment stability is improved in some tranches if other tranches absorb more prepayment variability.

The final tranche of a CMO often takes the form of a Z-bond, also known as an accrual bond or accretion bond. Holders of these securities receive no cash until the earlier tranches are paid in full. During the period that the other tranches are outstanding, periodic interest payments are added to the initial face amount of the Z-bond but are not paid to investors. When the prior tranches are retired, the Z-bond receives coupon payments on its higher principal balance plus any principal prepayments from the underlying mortgage loans. The existence of a Z-bond tranche helps stabilize cash flow patterns in the other tranches. In a changing interest rate environment, however, the value of the Z-bond tends to be more volatile.

As CMOs have evolved, some classes of CMO bonds have become more prevalent. The planned amortization class (PAC) and targeted amortization class (TAC), for example, were designed to reduce prepayment risk by establishing a sinking-fund structure. PAC and TAC bonds assure to varying degrees that investors will receive payments over a predetermined period under various prepayment scenarios. Although PAC and TAC bonds are similar, PAC bonds are better able to provide stable cash flows under various prepayment scenarios than TAC bonds because of the order in which these tranches are paid.

The existence of a PAC or TAC tranche can create higher levels of risk for other tranches in the CMO because the stability of the PAC or TAC tranche is achieved by creating at least one other tranche — known as a companion bond, support or non-PAC bond — that absorbs the variability of principal cash flows. Because companion bonds have a high degree of average life variability, they generally pay a higher yield. A TAC bond can have some of the prepayment variability of a companion bond if there is also a PAC bond in the CMO issue.

Floating-rate CMO tranches (floaters) pay a variable rate of interest that is usually tied to the LIBOR. Institutional investors with short-term liabilities, such as commercial banks, often find floating-rate CMOs attractive investments. Super floaters (which float a certain percentage above LIBOR) and inverse floaters (which float inversely to LIBOR) are variations on the floater structure that have highly variable cash flows.

Stripped Mortgage-Backed Securities

Stripped mortgage-backed securities are created by segregating the cash flows from underlying mortgage loans or mortgage securities to create two or more new securities, each with a specified percentage of the underlying security’s principal or interest payments. Mortgage-backed securities may be partially stripped so that each investor class receives some interest and some principal. When securities are completely stripped, however, all of the interest is distributed to holders of one type of security, known as an interest-only security, or IO, and all of the principal is distributed to holders of another type of security known as a principal-only security, or PO. Strips can be created in a pass-through structure or as tranches of a CMO.

The market values of IOs and POs are very sensitive to interest rate and prepayment rate fluctuations. POs, for example, increase (or decrease) in value as interest rates decline (or rise). The price behavior of these securities also depends on whether the mortgage collateral was purchased at a premium or discount to its par value. Prepayments on discount coupon POs generally are much lower

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than prepayments on premium coupon POs. IOs may be used to hedge a fund’s other investments because prepayments cause the value of an IO strip to move in the opposite direction from other mortgage-backed securities.

Commercial Mortgage-Backed Securities (CMBS)

CMBS are securities created from a pool of commercial mortgage loans, such as loans for hotels, shopping centers, office buildings, apartment buildings, and the like. Interest and principal payments from these loans are passed on to the investor according to a particular schedule of payments. They may be issued by U.S. government agencies or by private issuers. The credit quality of CMBS depends primarily on the quality of the underlying loans and on the structure of the particular deal. Generally, deals are structured with senior and subordinate classes. Multiple classes may permit the issuance of securities with payment terms, interest rates, or other characteristics differing both from those of each other and those of the underlying assets. Examples include classes having characteristics such as floating interest rates or scheduled amortization of principal. Rating agencies rate the individual classes of the deal based on the degree of seniority or subordination of a particular class and other factors. The value of these securities may change because of actual or perceived changes in the creditworthiness of individual borrowers, their tenants, the servicing agents, or the general state of commercial real estate and other factors.

Adjustable Rate Mortgage Securities

Adjustable rate mortgage securities (ARMs) have interest rates that reset at periodic intervals. Acquiring ARMs permits a fund to participate in increases in prevailing current interest rates through periodic adjustments in the coupons of mortgages underlying the pool on which ARMs are based. In addition, when prepayments of principal are made on the underlying mortgages during periods of rising interest rates, a fund can reinvest the proceeds of such prepayments at rates higher than those at which they were previously invested. Mortgages underlying most ARMs, however, have limits on the allowable annual or lifetime increases that can be made in the interest rate that the mortgagor pays. Therefore, if current interest rates rise above such limits over the period of the limitation, a fund holding an ARM does not benefit from further increases in interest rates. Moreover, when interest rates are in excess of coupon rates (i.e., the rates being paid by mortgagors) of the mortgages, ARMs behave more like fixed income securities and less like adjustable rate securities and are subject to the risks associated with fixed income securities. In addition, during periods of rising interest rates, increases in the coupon rate of adjustable rate mortgages generally lag current market interest rates slightly, thereby creating the potential for capital depreciation on such securities.

Mortgage Dollar Rolls

Balanced may enter into mortgage dollar rolls in which a fund sells mortgage-backed securities to financial institutions for delivery in the current month and simultaneously contracts to repurchase similar securities on a specified future date. During the period between the sale and repurchase (the “roll period”), the fund forgoes principal and interest paid on the mortgage-backed securities. The fund is compensated by the difference between the current sales price and the forward price for the future purchase (often referred to as the “drop”), as well as by the interest earned on the cash proceeds of the initial sale. The fund will use the proceeds generated from the transaction to invest in other securities that are permissible investments for the fund. Such investments may have a leveraging effect, increasing the volatility of the fund.

For each mortgage dollar roll transaction, a fund will cover the roll by segregating on its books an offsetting cash position or a position of liquid securities of equivalent value.

A fund could suffer a loss if the contracting party fails to perform the future transaction and the fund is therefore unable to buy back the mortgage-backed securities it initially sold. The fund also takes the risk that the mortgage-backed securities that it repurchases at a later date will have less favorable market characteristics than the securities originally sold.

Municipal Bonds

Municipal bonds, which generally have maturities of more than one year when issued, are designed to meet longer-term capital needs. These securities have two principal classifications: general obligation bonds and revenue bonds.

General obligation (GO) bonds are issued by states, counties, cities, towns and regional districts to fund a variety of public projects, including construction of and improvements to schools, highways, and water and sewer systems. GO bonds are backed by the issuer’s full faith and credit based on its ability to levy taxes for the timely payment of interest and repayment of principal, although such levies may be constitutionally or statutorily limited as to rate or amount.

Revenue bonds are not backed by an issuer’s taxing authority; rather, interest and principal are secured by the net revenues from a project or facility. Revenue bonds are issued to finance a variety of capital projects, including construction or refurbishment of utility and waste disposal systems, highways, bridges, tunnels, air and seaport facilities and hospitals.

Industrial development bonds (IDBs), a type of revenue bond, are issued by or on behalf of public authorities to finance privately operated facilities. These bonds are used to finance business, manufacturing, housing, athletic and pollution control projects, as well as public facilities such as mass transit systems, air and seaport facilities and parking garages. Payment of interest and repayment of principal on an IDB depend solely on the ability of the facility’s operator to meet financial obligations, and on the pledge, if any, of the real or personal property financed. The interest earned on IDBs may be subject to the federal alternative minimum tax.

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Some longer-term municipal bonds allow an investor to “put” or sell the security at a specified time and price to the issuer or other “put provider.” If a put provider fails to honor its commitment to purchase the security, the fund may have to treat the security’s final maturity as its effective maturity, lengthening the fund’s weighted average maturity and increasing the volatility of the fund.

Municipal Notes

Municipal notes are issued by state and local governments or government entities to provide short-term capital or to meet cash flow needs.

Tax anticipation notes (TANs) are issued in anticipation of seasonal tax revenues, such as ad valorem property, income, sales, use and business taxes, and are payable from these future taxes. TANs usually are general obligations of the issuer. General obligations are backed by the issuer’s full faith and credit based on its ability to levy taxes for the timely payment of interest and repayment of principal, although such levies may be constitutionally or statutorily limited as to rate or amount.

Revenue anticipation notes (RANs) are issued with the expectation that receipt of future revenues, such as federal revenue sharing or state aid payments, will be used to repay the notes. Typically, these notes also constitute general obligations of the issuer.

Bond anticipation notes (BANs) are issued to provide interim financing until long-term financing can be arranged. In most cases, the long-term bonds provide the money for repayment of the notes.

Other Investment Companies

Each of the funds may invest in other investment companies, such as closed-end investment companies, unit investment trusts, exchange traded funds (ETFs) and other open-end investment companies, provided that the investment is consistent with the fund’s investment policies and restrictions. Under the Investment Company Act, a fund’s investment in such securities, subject to certain exceptions, currently is limited to


•	3% of the total voting stock of any one investment company;


•	5% of the fund’s total assets with respect to any one investment company; and


•	10% of a fund’s total assets in the aggregate.

A fund’s investments in other investment companies may include money market funds managed by the advisor. Investments in money market funds are not subject to the percentage limitations set forth above.

Such purchases will be made in the open market where no commission or profit to a sponsor or dealer results from the purchase other than the customary brokers’ commissions. As a shareholder of another investment company, a fund would bear, along with other shareholders, its pro rata portion of the other investment company’s expenses, including advisory fees. These expenses would be in addition to the management fee that each fund bears directly in connection with its own operations.

ETFs are a type of fund bought and sold on a securities exchange. An ETF trades like common stock and usually represents a fixed portfolio of securities designed to track the performance and dividend yield of a particular domestic or foreign market index. A fund may purchase an ETF to temporarily gain exposure to a portion of the U.S. or a foreign market while awaiting purchase of underlying securities. The risks of owning an ETF generally reflect the risks of owning the underlying securities they are designed to track, although the lack of liquidity on an ETF could result in it being more volatile and the market price for the ETF may be higher than or lower than the ETF’s net asset value. Additionally, ETFs have management fees, which increase their cost.

Repurchase Agreements

Each fund may invest in repurchase agreements when they present an attractive short-term return on cash that is not otherwise committed to the purchase of securities pursuant to the investment policies of that fund.

A repurchase agreement occurs when, at the time a fund purchases an interest-bearing obligation, the seller (a bank or a broker-dealer registered under the Securities Exchange Act of 1934) agrees to purchase it on a specified date in the future at an agreed-upon price. The repurchase price reflects an agreed-upon interest rate during the time the fund’s money is invested in the security.

Because the security purchased constitutes collateral for the repurchase obligation, a repurchase agreement can be considered a loan collateralized by the security purchased. The fund’s risk is the seller’s ability to pay the agreed-upon repurchase price on the repurchase date. If the seller defaults, the fund may incur costs in disposing of the collateral, which would reduce the amount realized thereon. If the seller seeks relief under the bankruptcy laws, the disposition of the collateral may be delayed or limited. To the extent the value of the security decreases, the fund could experience a loss.

The funds will limit repurchase agreement transactions to securities issued by the U.S. government and its agencies and instrumentalities, and will enter into such transactions with those banks and securities dealers who are deemed creditworthy by the funds’ advisor.

Repurchase agreements maturing in more than seven days would count toward a fund’s 15% limit on illiquid securities.

Restricted and Illiquid Securities

The funds may, from time to time, purchase restricted or illiquid securities, including Rule 144A securities, when they present attractive investment opportunities that otherwise meet the funds’ criteria for selection. Restricted securities include securities that

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cannot be sold to the public without registration under the Securities Act of 1933 or the availability of an exemption from registration, or that are “not readily marketable” because they are subject to other legal or contractual delays in or restrictions on resale. Rule 144A securities are securities that are privately placed with and traded among qualified institutional investors rather than the general public. Although Rule 144A securities are considered restricted securities, they are not necessarily illiquid.

With respect to securities eligible for resale under Rule 144A, the staff of the Securities and Exchange Commission (SEC) has taken the position that the liquidity of such securities in the portfolio of a fund offering redeemable securities is a question of fact for the Board of Directors to determine, such determination to be based upon a consideration of the readily available trading markets and the review of any contractual restrictions. Accordingly, the Board of Directors is responsible for developing and establishing the guidelines and procedures for determining the liquidity of Rule 144A securities. As allowed by Rule 144A, the Board of Directors has delegated the day-to-day function of determining the liquidity of Rule 144A securities to the portfolio managers. The board retains the responsibility to monitor the implementation of the guidelines and procedures it has adopted.

Because the secondary market for such securities is generally limited to certain qualified institutional investors, the liquidity of such securities may be limited accordingly and a fund may, from time to time, hold a Rule 144A or other security that is illiquid. In such an event, the portfolio managers will consider appropriate remedies to minimize the effect on such fund’s liquidity. Each of the funds may invest no more than 15% of the value of its assets in illiquid securities.

Short Sales

A fund may engage in short sales for cash management purposes only if, at the time of the short sale, the fund owns or has the right to acquire securities equivalent in kind and amount to the securities being sold short.

In a short sale, the seller does not immediately deliver the securities sold and is said to have a short position in those securities until delivery occurs. To make delivery to the purchaser, the executing broker borrows the securities being sold short on behalf of the seller. While the short position is maintained, the seller collateralizes its obligation to deliver the securities sold short in an amount equal to the proceeds of the short sale plus an additional margin amount established by the Board of Governors of the Federal Reserve. If a fund engages in a short sale, the fund’s custodian will segregate cash, cash equivalents or other appropriate liquid securities on its records in an amount sufficient to meet the purchase price. There will be certain additional transaction costs associated with short sales, but the fund will endeavor to offset these costs with income from the investment of the cash proceeds of short sales.

Short-Term Securities

In order to meet anticipated redemptions, anticipated purchases of additional securities for a fund’s portfolio, or, in some cases, for temporary defensive purposes, these funds may invest a portion of their assets in money market and other short-term securities.

Examples of those securities include:


•	Securities issued or guaranteed by the U.S. government and its agencies and instrumentalities


•	Commercial Paper


•	Certificates of Deposit and Euro Dollar Certificates of Deposit


•	Bankers’ Acceptances


•	Short-term notes, bonds, debentures or other debt instruments


•	Repurchase agreements


•	Money market funds

Swap Agreements

Each fund may invest in swap agreements, consistent with its investment objective and strategies. A fund may enter into a swap agreement in order to, for example, attempt to obtain or preserve a particular return or spread at a lower cost than obtaining a return or spread through purchases and/or sales of instruments in other markets; protect against currency fluctuations; attempt to manage duration to protect against any increase in the price of securities the fund anticipates purchasing at a later date; or gain exposure to certain markets in the most economical way possible.

Swap agreements are two-party contracts entered into primarily by institutional investors for periods ranging from a few weeks to more than one year. In a standard “swap” transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments, which may be adjusted for an interest factor. The gross returns to be exchanged or “swapped” between the parties are generally calculated with respect to a “notional amount,” i.e., the return on or increase in value of a particular dollar amount invested at a particular interest rate, in a particular foreign currency, or in a “basket” of securities representing a particular index. Forms of swap agreements include, for example, interest rate swaps, under which fixed- or floating-rate interest payments on a specific principal amount are exchanged and total return swaps, under which one party agrees to pay the other the total return of a defined underlying asset (usually an index, including inflation indexes, stock, bond or defined portfolio of loans and mortgages) in exchange for fee payments, often a variable stream of cashflows based on LIBOR.

The funds may enter into credit default swap agreements to hedge an existing position by purchasing or selling credit protection. Credit default swaps enable an investor to buy/sell protection against a credit event of a specific issuer. The seller of credit protection

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against a security or basket of securities receives an up-front or periodic payment to compensate against potential default event(s). The fund may enhance returns by selling protection or attempt to mitigate credit risk by buying protection. Market supply and demand factors may cause distortions between the cash securities market and the credit default swap market.

Whether a fund’s use of swap agreements will be successful depends on the advisor’s ability to predict correctly whether certain types of investments are likely to produce greater returns than other investments. Interest rate swaps could result in losses if interest rate changes are not correctly anticipated by the fund. Total return swaps could result in losses if the reference index, security, or investments do not perform as anticipated by the fund. Credit default swaps could result in losses if the fund does not correctly evaluate the creditworthiness of the issuer on which the credit default swap is based. Because they are two-party contracts and because they may have terms of greater than seven days, swap agreements may be considered to be illiquid. Moreover, a fund bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a swap agreement counterparty. The funds will enter into swap agreements only with counterparties that meet certain standards of creditworthiness or that are cleared through a Derivatives Clearing Organization (“DCO”). Certain restrictions imposed on the funds by the Internal Revenue Code may limit the funds’ ability to use swap agreements.

The swaps market is an evolving market and was largely unregulated prior to the enactment of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”). The Dodd-Frank Act and related regulatory developments have imposed several new requirements on swap market participants, including: (i) new registration and business conduct requirements on swap dealers; (ii) mandatory execution of certain swaps on swap execution facilities or designated contract markets; and (iii) mandatory clearing of certain swaps with DCOs. The mandatory execution and clearing requirements will occur on a phased-in basis. Although central clearing is designed to decrease counterparty risk, it does not do so entirely since a fund will still be subject to the credit risk of the central clearing entity. In addition, swaps that are not cleared will be subject to regulatory collateral requirements that could limit or adversely affect a fund’s ability to enter into such swaps. Additionally, such collateral requirements, or other government regulations, could cause a fund to terminate new or existing swaps or to realize amounts to be received under such instruments at inopportune times.

Tender Option Bonds

Tender Option Bonds (TOBs) were created to increase the supply of high-quality, short-term tax-exempt obligations, and thus they are of particular interest to money market funds. However, Capital Value may purchase these instruments.

TOBs are created by municipal bond dealers who purchase long-term tax-exempt bonds in the secondary market, place the certificates in trusts, and sell interests in the trusts with puts or other liquidity guarantees attached. The credit quality of the resulting synthetic short-term instrument is based on the put provider’s short-term rating and the underlying bond’s long-term rating.

There is some risk that a remarketing agent will renege on a tender option agreement if the underlying bond is downgraded or defaults. Because of this, the portfolio managers monitor the credit quality of bonds underlying the funds’ TOB holdings and intend to sell or put back any TOB if the rating on the underlying bond falls below the second-highest rating category designated by a rating agency.

U.S. Government Securities

U.S. Treasury bills, notes, zero-coupon bonds and other bonds are direct obligations of the U.S. Treasury, which has never failed to pay interest and repay principal when due. Treasury bills have initial maturities of one year or less, Treasury notes from two to 10 years, and Treasury bonds more than 10 years. Although U.S. Treasury securities carry little principal risk if held to maturity, the prices of these securities (like all debt securities) change between issuance and maturity in response to fluctuating market interest rates.

A number of U.S. government agencies and instrumentalities issue debt securities. These agencies generally are created by Congress to fulfill a specific need, such as providing credit to home buyers or farmers. Among these agencies are the Federal Home Loan Banks, the Federal Farm Credit Banks and the Resolution Funding Corporation.

Some agency securities are backed by the full faith and credit of the U.S. government, and some are guaranteed only by the issuing agency. Agency securities typically offer somewhat higher yields than U.S. Treasury securities with similar maturities. However, these securities may involve greater risk of default than securities backed by the U.S. Treasury.

Interest rates on agency securities may be fixed for the term of the investment (fixed-rate agency securities) or tied to prevailing interest rates (floating-rate agency securities). Interest rate resets on floating-rate agency securities generally occur at intervals of one year or less, based on changes in a predetermined interest rate index.

Floating-rate agency securities frequently have caps limiting the extent to which coupon rates can be raised. The price of a floating-rate agency security may decline if its capped coupon rate is lower than prevailing market interest rates. Fixed- and floating-rate agency securities may be issued with a call date (which permits redemption before the maturity date). The exercise of a call may reduce an obligation’s yield to maturity.

Interest Rate Resets on Floating-Rate U.S. Government Agency Securities

Interest rate resets on floating-rate U.S. government agency securities generally occur at intervals of one year or less in response to changes in a predetermined interest rate index. There are two main categories of indices: those based on U.S. Treasury securities and

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those derived from a calculated measure, such as a cost-of-funds index. Commonly used indices include the three-month, six-month and one-year Treasury bill rates; the two-year Treasury note yield; the Eleventh District Federal Home Loan Bank Cost of Funds Index (EDCOFI); and the London Interbank Offered Rate (LIBOR). Fluctuations in the prices of floating-rate U.S. government agency securities are typically attributed to differences between the coupon rates on these securities and prevailing market interest rates between interest rate reset dates.

Variable-, Floating- and Auction-Rate Securities

Variable- and floating-rate securities, including floating-rate notes (FRNs), provide for periodic adjustments to the interest rate. The adjustments are generally based on an index-linked formula, or determined through a remarketing process.

These types of securities may be combined with a put or demand feature that permits the fund to demand payment of principal plus accrued interest from the issuer or a financial institution. One example is the variable-rate demand note (VRDN). VRDNs combine a demand feature with an interest rate reset mechanism designed to result in a market value for the security that approximates par. VRDNs are generally designed to meet the requirements of money market fund Rule 2a-7.

Auction rate securities (ARS) are variable rate bonds whose interest rates are reset at specified intervals through a Dutch auction process. A Dutch auction is a competitive bidding process designed to determine a single uniform clearing rate that enables purchases and sales of the ARS to take place at par. All accepted bids and holders of the ARS receive the same rate. ARS holders rely on the liquidity generated by the Dutch auction. There is a risk that an auction will fail due to insufficient demand for the securities. If an auction fails, an ARS may become illiquid until either a subsequent successful auction is conducted, the issuer redeems the issue, or a secondary market develops.

When-Issued and Forward Commitment Agreements

The funds may sometimes purchase new issues of securities on a when-issued or forward commitment basis in which the transaction price and yield are each fixed at the time the commitment is made, but payment and delivery occur at a future date.

For example, a fund may sell a security and at the same time make a commitment to purchase the same or a comparable security at a future date and specified price. Conversely, a fund may purchase a security and at the same time make a commitment to sell the same or a comparable security at a future date and specified price. These types of transactions are executed simultaneously in what are known as dollar-rolls, buy/sell back transactions, cash and carry, or financing transactions. For example, a broker-dealer may seek to purchase a particular security that a fund owns. The fund will sell that security to the broker-dealer and simultaneously enter into a forward commitment agreement to buy it back at a future date. This type of transaction generates income for the fund if the dealer is willing to execute the transaction at a favorable price in order to acquire a specific security.

When purchasing securities on a when-issued or forward commitment basis, a fund assumes the rights and risks of ownership, including the risks of price and yield fluctuations. Market rates of interest on debt securities at the time of delivery may be higher or lower than those contracted for on the when-issued security. Accordingly, the value of that security may decline prior to delivery, which could result in a loss to the fund. While the fund will make commitments to purchase or sell securities with the intention of actually receiving or delivering them, it may sell the securities before the settlement date if doing so is deemed advisable as a matter of investment strategy.

In purchasing securities on a when-issued or forward commitment basis, a fund will segregate cash, cash equivalents or other appropriate liquid securities on its record in an amount sufficient to meet the purchase price. To the extent a fund remains fully invested or almost fully invested at the same time it has purchased securities on a when-issued basis, there will be greater fluctuations in its net asset value than if it solely set aside cash to pay for when-issued securities. When the time comes to pay for the when-issued securities, the fund will meet its obligations with available cash, through the sale of securities, or, although it would not normally expect to do so, by selling the when-issued securities themselves (which may have a market value greater or less than the fund’s payment obligation). Selling securities to meet when-issued or forward commitment obligations may generate taxable capital gains or losses.

Zero-Coupon and Step-Coupon Securities

The funds may purchase zero-coupon debt securities. Zero-coupon securities do not make regular cash interest payments, and are sold at a deep discount to their face value.

The funds may also purchase step-coupon or step-rate debt securities. Instead of having a fixed coupon for the life of the security, coupon or interest payments may increase to predetermined rates at future dates. The issuer generally retains the right to call the security. Some step-coupon securities are issued with no coupon payments at all during an initial period, and only become interest-bearing at a future date; these securities are sold at a deep discount to their face value.

Although zero-coupon and certain step-coupon securities may not pay current cash income, federal income tax law requires the holder to include in income each year the portion of any original issue discount and other noncash income on such securities accrued during that year. In order to continue to qualify for treatment as a regulated investment company under the Internal Revenue Code and avoid certain excise tax, the funds are required to make distributions of any original issue discount and other noncash income accrued for

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each year. Accordingly, the funds may be required to dispose of other portfolio securities, which may occur in periods of adverse market prices, in order to generate a case to meet these distribution requirements.

Investment Policies

Unless otherwise indicated, with the exception of the percentage limitations on borrowing, the policies described below apply at the time a fund enters into a transaction. Accordingly, any later increase or decrease beyond the specified limitation resulting from a change in a fund’s assets will not be considered in determining whether it has complied with its investment policies.

For purposes of a fund’s investment policies, the party identified as the “issuer” of a municipal security depends on the form and conditions of the security. When the assets and revenues of a political subdivision are separate from those of the government that created the subdivision and the security is backed only by the assets and revenues of the subdivision, the subdivision is deemed the sole issuer. Similarly, in the case of an Industrial Development Bond, if the bond were backed only by the assets and revenues of a non-governmental user, the non-governmental user would be deemed the sole issuer. If, in either case, the creating government or some other entity were to guarantee the security, the guarantee would be considered a separate security and treated as an issue of the guaranteeing entity.

Fundamental Investment Policies

The funds’ fundamental investment policies are set forth below. These investment policies, a fund’s investment objective set forth in its prospectus, and a fund’s status as diversified may not be changed without approval of a majority of the outstanding votes of shareholders of a fund. Under the Investment Company Act, the vote of a majority of the outstanding votes of shareholders means, the vote of (A) 67 percent or more of the voting securities present at a shareholder meeting, if the holders of more than 50 percent of the outstanding voting securities are present or represented by proxy; or (B) more than 50 percent of the outstanding voting securities, whichever is less.



Subject	Policy
Senior Securities	A fund may not issue senior securities, except as permitted under the Investment Company Act.
Borrowing	A fund may not borrow money, except that a fund may borrow for temporary or emergency purposes (not for leveraging or investment) in an amount not exceeding 33⅓% of the fund’s total assets (including the amount borrowed) less liabilities (other than borrowings).
Lending	A fund may not lend any security or make any other loan if, as a result, more than 33⅓% of the fund’s total assets would be lent to other parties, except (i) through the purchase of debt securities in accordance with its investment objective, policies and limitations or (ii) by engaging in repurchase agreements with respect to portfolio securities.
Real Estate	A fund may not purchase or sell real estate unless acquired as a result of ownership of securities or other instruments. This policy shall not prevent a fund from investing in securities or other instruments backed by real estate or securities of companies that deal in real estate or are engaged in the real estate business.
Concentration	A fund may not concentrate its investments in securities of issuers in a particular industry (other than securities issued or guaranteed by the U.S. government or any of its agencies or instrumentalities).
Underwriting	A fund may not act as an underwriter of securities issued by others, except to the extent that the fund may be considered an underwriter within the meaning of the Securities Act of 1933 in the disposition of restricted securities.
Commodities	A fund may not purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments, provided that this limitation shall not prohibit the fund from purchasing or selling options and futures contracts or from investing in securities or other instruments backed by physical commodities.
Control	A fund may not invest for purposes of exercising control over management.

For purposes of the investment policy relating to senior securities, a fund may borrow from any bank provided that immediately after any such borrowing there is asset coverage of at least 300% for all borrowings of such fund. In the event that such asset coverage falls below 300%, the fund shall, within three days thereafter (not including Sundays and holidays) or such longer period as the SEC may prescribe by rules and regulations, reduce the amount of its borrowings to an extent that the asset coverage of such borrowings is at least 300%. In addition, when a fund enters into certain transactions involving potential leveraging, it will hold offsetting positions or segregate assets to cover such obligations at levels consistent with the guidance of the SEC and its staff.

For purposes of the investment policies relating to lending and borrowing, the funds have received an exemptive order from the SEC regarding an interfund lending program. Under the terms of the exemptive order, the funds may borrow money from or lend money to other American Century Investments-advised funds that permit such transactions. All such transactions will be subject to the limits for borrowing and lending set forth above. The funds will borrow money through the program only when the costs are equal to or lower than the costs of short-term bank loans. Interfund loans and borrowings normally extend only overnight, but can have a maximum duration of seven days. The funds will lend through the program only when the returns are higher than those available from other

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short-term instruments (such as repurchase agreements). The funds may have to borrow from a bank at a higher interest rate if an interfund loan is called or not renewed. Any delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs. For purposes of the funds’ investment policy relating to borrowing, short positions held by the funds are not considered borrowings.

For purposes of the investment policy relating to concentration, a fund shall not purchase any securities that would cause 25% or more of the value of the fund’s net assets at the time of purchase to be invested in the securities of one or more issuers conducting their principal business activities in the same industry, provided that

(a)

there is no limitation with respect to obligations issued or guaranteed by the U.S. government, any state, territory or possession of the United States, the District of Columbia or any of their authorities, agencies, instrumentalities or political subdivisions and repurchase agreements secured by such obligations (except that an Industrial Development Bond backed only by the assets and revenues of a non-governmental user will be deemed to be an investment in the industry represented by such user),


(b)	wholly owned finance companies will be considered to be in the industries of their parents if their activities are primarily related to financing the activities of their parents,


(c)	utilities will be divided according to their services, for example, gas, gas transmission, electric and gas, electric, and telephone will each be considered a separate industry, and


(d)	personal credit and business credit businesses will be considered separate industries.

Nonfundamental Investment Policies

In addition, the funds are subject to the following investment policies that are not fundamental and may be changed by the Board of Directors.



Subject	Policy
Leveraging	A fund may not purchase additional investment securities at any time during which outstanding borrowings exceed 5% of the total assets of the fund.
Liquidity	A fund may not purchase any security or enter into a repurchase agreement if, as a result, more than 15% of its net assets would be invested in illiquid securities. Illiquid securities include repurchase agreements not entitling the holder to payment of principal and interest within seven days, and securities that are illiquid by virtue of legal or contractual restrictions on resale or the absence of a readily available market.
Short Sales	A fund may not sell securities short, unless it owns or has the right to obtain securities equivalent in kind and amount to the securities sold short, and provided that transactions in futures contracts and options are not deemed to constitute selling securities short.
Margin	A fund may not purchase securities on margin, except to obtain such short-term credits as are necessary for the clearance of transactions, and provided that margin payments in connection with futures contracts and options on futures contracts shall not constitute purchasing securities on margin.
Futures and Options	A fund may enter into futures contracts and write and buy put and call options relating to futures contracts. A fund may not, however, enter into leveraged futures transactions if it would be possible for the fund to lose more than the notional value of the investment.
Issuers with Limited Operating Histories	A fund may invest in the equity securities of issuers with limited operating histories. See Investment in Issuers with Limited Operating Histories under Fund Investments and Risks . An issuer is considered to have a limited operating history if that issuer has a record of less than three years of continuous operation. Periods of capital formation, incubation, consolidations, and research and development may be considered in determining whether a particular issuer has a record of three years of continuous operation.

For purposes of the funds’ investment policy relating to leveraging, short positions held by the funds are not considered borrowings.

The Investment Company Act imposes certain additional restrictions upon the funds’ ability to acquire securities issued by insurance companies, broker-dealers, underwriters or investment advisors, and upon transactions with affiliated persons as defined by the Act. It also defines and forbids the creation of cross and circular ownership. Neither the SEC nor any other agency of the federal or state government participates in or supervises the management of the funds or their investment practices or policies.

Temporary Defensive Measures

For temporary defensive purposes, each fund may invest in securities that may not fit its investment objective or its stated market. During a temporary defensive period, a fund may invest a portion of its assets in money market, cash, cash-equivalents or other short-term securities.

Examples of those securities include:


•	securities issued or guaranteed by the U.S. government and its agencies and instrumentalities;


•	commercial paper;


•	interest-bearing bank accounts or certificates of deposit;

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•	short-term notes, bonds, or other debt instruments;


•	repurchase agreements; and


•	money market funds.

To the extent a fund assumes a defensive position, it may not achieve its investment objective.

Portfolio Turnover

The portfolio turnover rate of each fund for its most recent fiscal year is included in the Fund Summary section of that fund’s prospectus. The portfolio turnover rate for each fund’s last five fiscal years (or a shorter period if the fund is less than five years old) is shown in the Financial Highlights tables in the prospectus. Variations in a fund’s portfolio turnover rate from year to year may be due to a fluctuating volume of shareholder purchase and redemption activity, varying market conditions, and/or changes in the managers’ investment outlook.

Capital Value Fund

The portfolio managers of Capital Value seek to minimize realized capital gains by keeping portfolio turnover low and generally holding portfolio investments for long periods. Because a higher turnover rate may increase taxable capital gains, the managers carefully weigh the potential benefits of short-term investing against the tax impact such investing would have on the fund’s shareholders. However, the portfolio managers may sell securities to realize losses that can be used to offset realized capital gains. They will take such actions when they believe the tax benefits from realizing losses offset the near-term investment potential of that security.

Other Funds

With respect to each other fund, the managers may sell securities without regard to the length of time the security has been held. Accordingly, each fund’s portfolio turnover rate may be substantial.

The portfolio managers intend to purchase a given security whenever they believe it will contribute to the stated objective of a particular fund. In order to achieve each fund’s investment objective, the managers may sell a given security regardless of the length of time it has been held in the portfolio, and regardless of the gain or loss realized on the sale. The managers may sell a portfolio security if they believe that the security is not fulfilling its purpose because, among other things, it did not live up to the managers’ expectations, because it may be replaced with another security holding greater promise, because it has reached its optimum potential, because of a change in the circumstances of a particular company or industry or in general economic conditions, or because of some combination of such reasons.

When a general decline in security prices is anticipated, the equity funds may decrease or eliminate entirely their equity positions and increase their cash positions, and when a general rise in price levels is anticipated, the equity funds may increase their equity positions and decrease their cash positions. However, it should be expected that the funds will, under most circumstances, be essentially fully invested in equity securities.

Because investment decisions are based on a particular security’s anticipated contribution to a fund’s investment objective, the managers believe that the rate of portfolio turnover is irrelevant when they determine that a change is required to pursue the fund’s investment objective. As a result, a fund’s annual portfolio turnover rate cannot be anticipated and may be higher than that of other mutual funds with similar investment objectives. Higher turnover would generate correspondingly greater brokerage commissions, which is a cost the funds pay directly. Portfolio turnover also may affect the character of capital gains realized and distributed by the fund, if any, because short-term capital gains are characterized as ordinary income.

Because the managers do not take portfolio turnover rate into account in making investment decisions, (1) the managers have no intention of maintaining any particular rate of portfolio turnover, whether high or low, and (2) the portfolio turnover rates in the past should not be considered as representative of the rates that will be attained in the future.

Disclosure of Portfolio Holdings

The advisor (ACIM) has adopted policies and procedures with respect to the disclosure of fund portfolio holdings and characteristics, which are described below.

Distribution to the Public

Month-end full portfolio holdings for each fund will generally be made available for distribution 15 days after the end of each calendar quarter for each of the preceding three months. This disclosure is in addition to the portfolio disclosure in annual and semiannual shareholder reports and on Form N-Q, which disclosures are filed with the Securities and Exchange Commission within 60 days of each fiscal quarter end and also posted on americancentury.com at approximately the same time the filings are made. The distribution of holdings after the above time periods is not limited.

On a monthly basis, top 10 holdings (on an absolute basis and relative to the appropriate benchmark) for each fund (except Market Neutral Value Fund, which is limited to the top five pairs by type, as described below) will generally be made available for distribution 7 days after the end of each month, and will be posted on americancentury.com at approximately the same time.

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Portfolio characteristics that are derived from portfolio holdings will be made available for distribution 7 days after the end of each month, or as soon thereafter as possible, which timeframe may vary by fund. Certain characteristics, as determined by the advisor, will be posted on americancentury.com monthly at approximately the time they are made available for distribution. Data derived from portfolio returns and any other characteristics not deemed confidential will be available for distribution at any time. The advisor may make determinations of confidentiality on a fund-by-fund basis, and may add or delete characteristics to or from those considered confidential at any time.

Any American Century Investments fund that sells securities short as an investment strategy will disclose full portfolio holdings in annual and semiannual shareholder reports and on Form N-Q. These funds will make long and short holdings as of the end of a calendar quarter available for distribution 15 days after the end of each calendar quarter. These funds may also make limited disclosures as noted in the Single Event Requests section below. The distribution of holdings after the above time periods is not limited.

Examples of securities (both long and short) currently or previously held in a portfolio may be included in presentations or other marketing documents as soon as available. The inclusion of such examples is at the relevant portfolio’s team discretion.

So long as portfolio holdings are disclosed in accordance with the above parameters, the advisor makes no distinction among different categories of recipients, such as individual investors, institutional investors, intermediaries that distribute the funds’ shares, third-party service providers, rating and ranking organizations, and fund affiliates. Because this information is publicly available and widely disseminated, the advisor places no conditions or restrictions on, and does not monitor, its use. Nor does the advisor require special authorization for its disclosure.

Accelerated Disclosure

The advisor recognizes that certain parties, in addition to the advisor and its affiliates, may have legitimate needs for information about portfolio holdings and characteristics prior to the times prescribed above. Such accelerated disclosure is permitted under the circumstances described below.

Ongoing Arrangements

Certain parties, such as investment consultants who provide regular analysis of fund portfolios for their clients and intermediaries who pass through information to fund shareholders, may have legitimate needs for accelerated disclosure. These needs may include, for example, the preparation of reports for customers who invest in the funds, the creation of analyses of fund characteristics for intermediary or consultant clients, the reformatting of data for distribution to the intermediary’s or consultant’s clients, and the review of fund performance for ERISA fiduciary purposes.

In such cases, accelerated disclosure is permitted if the service provider enters an appropriate non-disclosure agreement with the funds’ distributor in which it agrees to treat the information confidentially until the public distribution date and represents that the information will be used only for the legitimate services provided to its clients (i.e., not for trading). Non-disclosure agreements require the approval of an attorney in the advisor’s legal department. The advisor’s compliance department receives quarterly reports detailing which clients received accelerated disclosure, what they received, when they received it and the purposes of such disclosure. Compliance personnel are required to confirm that an appropriate non-disclosure agreement has been obtained from each recipient identified in the reports.

Those parties who have entered into non-disclosure agreements as of December 31, 2017 are as follows:


•	Alight Solutions LLC


•	AllianceBernstein L.P.


•	American Fidelity Assurance Co.


•	Ameritas Life Insurance Corporation


•	AMP Capital Investors Limited


•	Annuity Investors Life Insurance Company


•	Aon Hewitt Investment Consulting


•	Athene Annuity & Life Assurance Company


•	AUL/American United Life Insurance Company


•	AXA Equitable Funds Management Group, LLC


•	Bell Globemedia Publishing


•	Bellwether Consulting, LLC


•	BNY Mellon Performance & Risk Analytics, LLC


•	Brighthouse Life Insurance Company


•	Callan Associates, Inc.


•	Calvert Asset Management Company, Inc.

27 #


•	Cambridge Associates, LLC


•	Cambridge Financial Services, Inc.


•	Capital Cities, LLC


•	Charles Schwab & Co., Inc.


•	Cleary Gull Inc.


•	Commerce Bank


•	Connecticut General Life Insurance Company


•	Corning Incorporated


•	Curcio Webb LLC


•	Deutsche AM Distributors, Inc.


•	EquiTrust Life Insurance Company


•	Farm Bureau Life Insurance Company


•	Fund Evaluation Group, LLC


•	Gavion, LLC


•	Government Employees Pension Service


•	Great-West Financial Retirement Plan Services, LLC


•	The Guardian Life Insurance Company of America


•	ICMA Retirement Corporation


•	Intel Corporation


•	InvesTrust Consulting, LLC


•	Iron Capital Advisors


•	Jefferson National Life Insurance Company


•	JLT Investment Management Limited


•	John Hancock Financial Services, Inc.


•	Kansas City Life Insurance Company


•	Kmotion, Inc.


•	Korea Investment Management Co. Ltd.


•	Korea Teachers Pension


•	Legal Super Pty Ltd.


•	The Lincoln National Life Insurance Company


•	Lipper Inc.


•	Marquette Associates


•	Massachusetts Mutual Life Insurance Company


•	Mercer Investment Management, Inc.


•	Merrill Lynch


•	Midland National Life Insurance Company


•	Minnesota Life Insurance Company


•	Modern Woodmen of America


•	Montana Board of Investments


•	Morgan Stanley Smith Barney LLC


•	Morningstar Investment Management LLC


•	Morningstar, Inc.


•	Morningstar Investment Services, Inc.


•	MUFG Union Bank, NA


•	Mutual of America Life Insurance Company


•	National Life Insurance Company


•	Nationwide Financial

28 #


•	NEPC


•	The Newport Group


•	Nomura Asset Management U.S. A. Inc.


•	Nomura Securities International, Inc.


•	Northwestern Mutual Life Insurance Co.


•	NYLIFE Distributors, LLC


•	Old Mutual Global Investors (UK) Limited


•	Pacific Life Insurance Company


•	Pavilion Advisory Group Inc.


•	Principal Life Insurance Company


•	Prudential Financial


•	RidgeWorth Capital Management, Inc.


•	Rocaton Investment Advisors, LLC


•	RSM US Wealth Management LLC


•	RVK, Inc.


•	S&P Financial Communications


•	Security Benefit Life Insurance Co.


•	Shinhan BNP Paribas Asset Management


•	SP-Fund Management Ltd.


•	State Street Global Exchange


•	SunTrust Bank


•	Symetra Life Insurance Company


•	Tokio Marine Asset Management Co., Ltd.


•	Towers Watson Investment Services, Inc.


•	Towers Watson Limited


•	UBS Financial Services, Inc.


•	UBS Wealth Management


•	Valic Financial Advisors Inc.


•	VALIC Retirement Services Company


•	Vestek Systems, Inc.


•	Voya Retirement Insurance and Annuity Company


•	Wells Fargo Bank, N.A


•	Wilshire Associates Incorporated

Once a party has executed a non-disclosure agreement, it may receive any or all of the following data for funds in which its clients have investments or are actively considering investment:

(1) Full holdings (both long and short) quarterly as soon as reasonably available;

(2) Full holdings (long only) monthly as soon as reasonably available;

(3) Top 10 holdings (top 5 pairs for each type for Market Neutral Value Fund) monthly as soon as reasonably available; and

(4) Portfolio attributes (such as sector or country weights), characteristics and performance attribution monthly as soon as reasonably available.

The types, frequency and timing of disclosure to such parties vary.

Single Event Requests

In certain circumstances, the advisor may provide fund holding information on an accelerated basis outside of an ongoing arrangement with manager-level or higher authorization. For example, from time to time the advisor may receive requests for proposals (RFPs) from consultants or potential clients that request information about a fund’s holdings on an accelerated basis. As long as such requests are on a one-time basis, and do not result in continued receipt of data, such information may be provided in the RFP. In these circumstances, top 15 long and short holdings may be disclosed 7 days after the end of each month. Such disclosure may be presented in paired trades, such as by showing a long holding in one sector or security and a corresponding short holding in another sector or

29 #

security together to show a long/short strategy. Such information will be provided with a confidentiality legend and only in cases where the advisor has reason to believe that the data will be used only for legitimate purposes and not for trading.

Service Providers

Various service providers to the funds and the funds’ advisor must have access to some or all of the funds’ portfolio holdings information on an accelerated basis from time to time in the ordinary course of providing services to the funds. These service providers include the funds’ custodian (daily, with no lag), auditors (as needed) and brokers involved in the execution of fund trades (as needed). Additional information about these service providers and their relationships with the funds and the advisor are provided elsewhere in this statement of additional information. In addition, the funds’ investment advisor may use analytical systems provided by third party data aggregators who have access to the funds’ portfolio holdings daily, with no lag. These data aggregators enter into separate non-disclosure agreements after authorization by an appropriate officer of the advisor. The agreements with service providers and data aggregators generally require that they treat the funds’ portfolio holdings information confidentially until the public distribution date and represent that the information will be used only for the legitimate services it provides (i.e., not for trading).

Additional Safeguards

The advisor’s policies and procedures include a number of safeguards designed to control disclosure of portfolio holdings and characteristics so that such disclosure is consistent with the best interests of fund shareholders, including procedures to address conflicts between the interests of shareholders and those of the advisor and its affiliates. First, the frequency with which this information is disclosed to the public, and the length of time between the date of the information and the date on which the information is disclosed, are selected to minimize the possibility of a third party improperly benefiting from fund investment decisions to the detriment of fund shareholders. In the event that a request for portfolio holdings or characteristics creates a potential conflict of interest that is not addressed by the safeguards and procedures described above, the advisor’s procedures require that such requests may only be granted with the approval of the advisor’s legal department and the relevant chief investment officers. In addition, distribution of portfolio holdings information, including compliance with the advisor’s policies and the resolution of any potential conflicts that may arise, is monitored quarterly by the advisor’s compliance department. Finally, the funds’ Board of Directors exercises oversight of disclosure of the funds’ portfolio securities. The board has received and reviewed a summary of the advisor’s policy and is informed on a quarterly basis of any changes to or violations of such policy detected during the prior quarter.

Neither the advisor nor the funds receive any compensation from any party for the distribution of portfolio holdings information.

The advisor reserves the right to change its policies and procedures with respect to the distribution of portfolio holdings information at any time. There is no guarantee that these policies and procedures will protect the funds from the potential misuse of holdings information by individuals or firms in possession of such information.

Management

The Board of Directors

The individuals listed below serve as directors of the funds. Each director will continue to serve in this capacity until death, retirement, resignation or removal from office. The board has adopted a mandatory retirement age for directors who are not “interested persons,” as that term is defined in the Investment Company Act (independent directors). Independent directors shall retire by December 31 of the year in which they reach their 75 ^th birthday.

Jonathan S. Thomas is an “interested person” because he currently serves as President and Chief Executive Officer of American Century Companies, Inc. (ACC), the parent company of American Century Investment Management, Inc. (ACIM or the advisor). The other directors (more than three-fourths of the total number) are independent. They are not employees, directors or officers of, and have no financial interest in, ACC or any of its wholly owned, direct or indirect, subsidiaries, including ACIM, American Century Investment Services, Inc. (ACIS) and American Century Services, LLC (ACS), and they do not have any other affiliations, positions or relationships that would cause them to be considered “interested persons” under the Investment Company Act. The directors serve in this capacity for seven (in the case of Jonathan S . Thomas, 16; and Stephen E. Yates, 8) registered investment companies in the American Century Investments family of funds.

The following table presents additional information about the directors. The mailing address for each director is 4500 Main Street, Kansas City, Missouri 64111.

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Name (Year of Birth)	Position(s) Held with Funds	Length of Time Served	Principal Occupation(s) During Past 5 Years	Number of American Century Portfolios Overseen by Director	Other Directorships Held During Past 5 Years
Independent Directors
Thomas W. Bunn (1953)	Director	Since 2017	Retired	68	SquareTwo Financial ; Barings (formerly Babson Capital Funds Trust ) (2013 to 2016)
Barry Fink (1955)	Director	Since 2012 (independent since 2016)	Retired; Executive Vice President, ACC (2007 to 2013); President, ACS (2007 to 2013); Chief Operating Officer, ACC (2007 to 2012)	68	None
Andrea C. Hall (1945)	Director	Since 1997	Retired	68	None
Jan M. Lewis (1957)	Director	Since 2011	Retired; President and Chief Executive Officer, Catholic Charities of Northeast Kansas (human services organization) (2006 to 2013)	68	None
M. Jeannine Strandjord (1945)	Director	Since 1994	Retired	68	Euronet Worldwide Inc. and MGP Ingredients, Inc.
John R. Whitten (1946)	Director	Since 2008	Retired	68	Rudolph Technologies, Inc.
Stephen E. Yates (1948)	Director and Chairman of the Board	Since 2012 (Chairman since 2018)	Retired	70	None
Interested Director
Jonathan S. Thomas (1963)	Director and President	Since 2007	President and Chief Executive Officer, ACC (2007 to present). Also serves as Chief Executive Officer, ACS ; Executive Vice President, ACIM ; Director, ACC , ACIM and other ACC subsidiaries	115	BioMed Valley Discoveries, Inc.

Qualifications of Directors

Generally, no one factor was decisive in the selection of the directors to the board. Qualifications considered by the board to be important to the selection and retention of directors include the following: (i) the individual’s business and professional experience and accomplishments; (ii) the individual’s educational background and accomplishments; (iii) the individual’s experience and expertise performing senior policy-making functions in business, government, education, accounting, law and/or administration; (iv) how the individual’s expertise and experience would contribute to the mix of relevant skills and experience on the board; (v) the individual’s ability to work effectively with the other members of the board; and (vi) the individual’s ability and willingness to make the time commitment necessary to serve as an effective director. In addition, the individuals’ ability to review and critically evaluate information, their ability to evaluate fund service providers, their ability to exercise good business judgment on behalf of fund shareholders, their prior service on the board, and their familiarity with the funds are considered important assets.

When assessing potential new directors, the board has a policy of considering individuals from various and diverse backgrounds. Such diverse backgrounds may include differences in professional experience, education, individual skill sets and other individual attributes. Additional information about each director’s individual educational and professional experience (supplementing the information provided in the table above) follows and was considered as part of his or her nomination to, or retention on, the board.

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Thomas W. Bunn: BS in Business Administration, Wake Forest University; MBA in Finance, University of North Carolina at Chapel Hill; formerly Vice Chairman and President, KeyCorp (banking services); 23 years of experience in investment, commercial and corporate banking managing directorship roles with Bank of America

Barry Fink: BA in English and History, Binghamton University; Juris Doctorate, University of Michigan; formerly held leadership roles during a 20-year career with Morgan Stanley Investment Management; formerly asset management and securities law attorney at Seward & Kissel; serves on the Executive Committee of the Board of Directors of ICI Mutual Insurance Company

Andrea C. Hall: BS in Biology, Florida State University; PhD in Biology, Georgetown University; formerly, advisor to the President, Senior Vice President and Director of Research Operations, Midwest Research Institute

Jan M. Lewis: BS in Civil Engineering, University of Nebraska and MBA, Rockhurst College; Graduate Certificate in Financial Markets and Institutions, Boston University; formerly, President, BUCON, Inc. (full-service design-build construction company); 20 years of experience with Butler Manufacturing Company (metal buildings producer) and its subsidiaries

M. Jeannine Strandjord: BS in Business Administration and Accounting, University of Kansas; CPA; formerly, Senior Vice President, Transformation, Senior Vice President of Financial Services, Treasurer and Chief Financial Officer, Global Markets Group; Sprint Corporation; formerly, with the accounting firm of Ernst & Whinney; formerly, Director, Charming Shoppes, Inc. and DST Systems Inc.

Jonathan S. Thomas: BA in Economics, University of Massachusetts; MBA, Boston College; formerly held senior leadership roles with Fidelity Investments, Boston Financial Services, Bank of America and Morgan Stanley; serves on the Board of Governors of the Investment Company Institute

John R. Whitten: BS in Business Administration, Cleveland State University; CPA; formerly, Chief Financial Officer and Treasurer, Applied Industrial Technologies, Inc. (bearings and power transmission company); thirteen years of experience with accounting firm Deloitte & Touche LLP

Stephen E. Yates: BS and MS in Industrial Engineering, University of Alabama; formerly, Executive Vice President, Technology & Operations, Key Corp (banking services); formerly, President, USAA Information Technology Company (financial services); 33 years of experience in Information Technology; formerly, Director, Applied Industrial Technologies, Inc.

Responsibilities of the Board

The board is responsible for overseeing the advisor’s management and operations of the funds pursuant to the management agreements. Directors also have significant responsibilities under the federal securities laws. Among other things, they:


•	oversee the performance of the funds;


•	oversee the quality of the advisory and shareholder services provided by the advisor and other service providers to the funds;


•	review annually the fees paid to the advisor for its services;


•	monitor potential conflicts of interest between the funds and their affiliates, including the advisor;


•	oversee custody of assets and the valuation of securities; and


•	oversee the funds’ compliance program.

In performing their duties, board members receive detailed information about the funds, the advisor and other service providers to the funds regularly throughout the year, and meet at least quarterly with management of the advisor to review reports about fund operations. The directors’ role is to provide oversight and not to provide day-to-day management.

The board has all powers necessary or convenient to carry out its responsibilities. Consequently, the board may adopt bylaws providing for the regulation and management of the affairs of the funds and may amend and repeal them to the extent that such bylaws do not reserve that right to the funds’ shareholders. They may increase or reduce the number of board members and may, subject to the Investment Company Act, fill board vacancies. Board members also may elect and remove such officers and appoint and terminate such agents as they consider appropriate. They may establish and terminate committees consisting of two or more directors who may exercise the powers and authority of the board as determined by the directors. They may, in general, delegate such authority as they consider desirable to any officer of the funds, to any board committee and to any agent or employee of the funds or to any custodian, transfer agent, investor servicing agent, principal underwriter or other service provider for a fund.

To communicate with the board, or a member of the board, a shareholder should send a written communication addressed to the attention of the corporate secretary (the “Corporate Secretary”) at American Century funds, P.O. Box 418210, Kansas City, Missouri 64141-9210. Shareholders who prefer to communicate by email may send their comments to corporatesecretary@americancentury.com. The Corporate Secretary will forward all such communications to each member of the Compliance and Shareholder Services Committee, or if applicable, the individual director(s) and/or committee chair named in the correspondence. However, if a shareholder communication is addressed exclusively to the funds’ independent directors, the Corporate Secretary will forward the communication to the Compliance and Shareholder Services Committee chair, who will determine the appropriate action.

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Board Leadership Structure and Standing Board Committees

Stephen E. Yates currently serves as the independent chairman of the board and has served in such capacity since 2018 . All of the board’s members except Jonathan S. Thomas are independent directors. The independent directors meet separately, as needed and at least in conjunction with each quarterly meeting of the board, to consider a variety of matters that are scheduled to come before the board and meet periodically with the funds’ Chief Compliance Officer and fund auditors. They are advised by independent legal counsel. No independent director may serve as an officer or employee of a fund. The board has also established several committees, as described below. The board believes that the current leadership structure, with independent directors filling all but one position on the board, with an independent director serving as chairman of the board, and with the board committees (with the exception of the Executive Committee) comprised only of independent directors, is appropriate and allows for independent oversight of the funds.

The board has an Audit Committee that approves the funds’ (or corporation’s) engagement of the independent registered public accounting firm and recommends approval of such engagement to the independent directors. The committee also oversees the activities of the accounting firm, receives regular reports regarding fund accounting, oversees securities valuation (approving the funds’ valuation policy and receiving reports regarding instances of fair valuation thereunder) and receives regular reports from the advisor’s internal audit department. The committee currently consists of John R. Whitten (chair), Andrea C. Hall, and Jan M. Lewis . It met four times during the fiscal year ended October 31, 2017 .

The board has a Governance Committee that is responsible for reviewing board procedures and committee structures. The committee also considers and recommends individuals for nomination as directors, and may recommend the creation of new committees. The names of potential director candidates may be drawn from a number of sources, including members of the board, management and shareholders. Shareholders may submit director nominations at any time to the Corporate Secretary, American Century funds, P.O. Box 418210, Kansas City, MO 64141-9210. When submitting nominations, shareholders should include the name, age and address of the candidate, as well as a detailed resume of the candidate’s qualifications and a signed statement from the candidate of his/her willingness to serve on the board. Shareholders submitting nominations should also include information concerning the number of fund shares and length of time held by the shareholder, and if applicable, similar information for the potential candidate. All nominations submitted by shareholders will be forwarded to the chair of the Governance Committee for consideration. The Corporate Secretary will maintain copies of such materials for future reference by the committee when filling board positions.

If this process yields more than one desirable candidate, the committee will rank them by order of preference depending on their qualifications and the funds’ needs. The candidate(s) may then be contacted to evaluate their interest and be interviewed by the full committee. Based upon its evaluation and any appropriate background checks, the committee will decide whether to recommend a candidate’s nomination to the board.

The Governance Committee also may recommend the creation of new committees, evaluate the membership structure of new and existing committees, consider the frequency and duration of board and committee meetings and otherwise evaluate the responsibilities, processes, resources, performance and compensation of the board. The committee currently consists of M. Jeannine Strandjord (chair), Thomas W. Bunn, Barry Fink, Andrea C. Hall, Jan M. Lewis, John R. Whitten and Stephen E. Yates. It met three times during the fiscal year ended October 31, 2017.

The board also has a Compliance and Shareholder Services Committee, which reviews the results of the funds’ compliance testing program, meets regularly with the funds’ Chief Compliance Officer, reviews shareholder communications, reviews quarterly reports regarding the quality of shareholder service provided by the advisor, and monitors implementation of the funds’ Code of Ethics. The committee currently consists of Barry Fink (chair), Thomas W. Bunn, M. Jeannine Strandjord and Stephen E. Yates. It met four times during the fiscal year ended October 31, 2017 .

The board has a Fund Performance Review Committee that meets quarterly to review the investment activities and strategies used to manage fund assets and monitor investment performance. The committee regularly receives reports from the advisor’s chief investment officer, portfolio managers and other investment personnel concerning the funds’ efforts to achieve their investment objectives. The committee also receives information regarding fund trading activities and monitors derivative usage. The Committee does not review individual security selections. The committee currently consists of Jan M. Lewis (chair), Thomas W. Bunn , Barry Fink, Andrea C. Hall, M. Jeannine Strandjord, John R. Whitten and Stephen E. Yates. The committee met four times during the fiscal year ended October 31, 2017.

Finally, the board has an Executive Committee that performs the functions of the board between board meetings, subject to the limitations on its power set out in the Maryland General Corporation Law and except for matters requiring the action of the entire board under the Investment Company Act. The committee currently consists of Stephen E. Yates (chair), Andrea C. Hall and Jonathan S. Thomas. The committee did not meet during the fiscal year ended October 31, 2017.

Risk Oversight by the Board

As previously disclosed, the board oversees the advisor’s management of the funds and meets at least quarterly with management of the advisor to review reports and receive information regarding fund operations. Risk oversight relating to the funds is one component of the board’s oversight and is undertaken in connection with the duties of the board. As described above, the board’s committees assist the board in overseeing various types of risks relating to the funds, including, but not limited to, investment risk, operational risk

33 #

and enterprise risk. The board receives regular reports from each committee regarding the committee’s areas of oversight responsibility and, through those reports and its regular interactions with management of the advisor during and between meetings, analyzes, evaluates, and provides feedback on the advisor’s risk management processes. In addition, the board receives information regarding, and has discussions with senior management of the advisor about, the advisor’s enterprise risk management system and strategies, including an annual review of the advisor’s risk management practices. There can be no assurance that all elements of risk, or even all elements of material risk, will be disclosed to or identified by the board, or that the advisor’s risk management systems and strategies, and the board’s oversight thereof, will mitigate all elements of risk, or even all elements of material risk to the funds.

Board Compensation

For the fiscal year ended October 31, 2017 , the funds and the American Century family of funds paid the directors listed in the following table the amounts shown. Under the terms of each management agreement with the advisor, the funds are responsible for paying such fees and expenses. Neither Jonathan S . Thomas nor any officer of the funds receives compensation from the funds.



Name of Director	Total Compensation from the Funds ⁽¹⁾	Total Compensation from the American Century Investments Family of Funds ⁽²⁾
Independent Directors
Thomas W. Bunn	$39,135	$129,167
Barry Fink	$96,568	$320,000
Andrea C. Hall, Ph.D.	$94,129	$312,000
Jan M. Lewis	$97,159	$322,000
James A. Olson ⁽³⁾	$108,625	$360,000
M. Jeannine Strandjord	$96,568	$320,000
John R. Whitten	$97,159	$322,000
Stephen E. Yates	$94,129	$312,000

¹ Includes compensation paid to the directors for the fiscal year ended October 31, 2017, and also includes amounts deferred at the election of the directors under the American Century Mutual Funds’ Independent Directors’ Deferred Compensation Plan.

² Includes compensation paid by the investment companies of the American Century Investments family of funds served by this board. The total amount of deferred compensation included in the table is as follows: Mr. Bunn, $ 129,167; Mr. Fink, $0; Dr. Hall, $0; Ms. Lewis, $0; Mr. Olson, $ 360,000 ; Ms. Strandjord, $ 25,833; Mr. Whitten $ 199,640 ; and Mr. Yates, $ 312,000 .


³	Mr. Olson retired from the board on December 31, 2017.

None of the funds currently provides any pension or retirement benefits to the directors except pursuant to the American Century Mutual Funds’ Independent Directors’ Deferred Compensation Plan adopted by the corporation. Under the plan, the independent directors may defer receipt of all or any part of the fees to be paid to them for serving as directors of the funds. All deferred fees are credited to accounts established in the names of the directors. The amounts credited to each account then increase or decrease, as the case may be, in accordance with the performance of one or more American Century funds selected by the directors. The account balance continues to fluctuate in accordance with the performance of the selected fund or funds until final payment of all amounts credited to the account. Directors are allowed to change their designation of funds from time to time.

Generally, deferred fees are not payable to a director until the distribution date elected by the director in accordance with the terms of the plan. Such distribution date may be a date on or after the director’s retirement date, but may be an earlier date if the director agrees not to make any additional deferrals after such distribution date. Distributions may commence prior to the elected payment date for certain reasons specified in the plan, such as unforeseeable emergencies, death or disability. Directors may receive deferred fee account balances either in a lump sum payment or in substantially equal installment payments to be made over a period not to exceed 10 years. Upon the death of a director, all remaining deferred fee account balances are paid to the director’s beneficiary or, if none, to the director’s estate.

The plan is an unfunded plan and, accordingly, the funds have no obligation to segregate assets to secure or fund the deferred fees. To date, the funds have met all payment obligations under the plan. The rights of directors to receive their deferred fee account balances are the same as the rights of a general unsecured creditor of the funds. The plan may be terminated at any time by the administrative committee of the plan. If terminated, all deferred fee account balances will be paid in a lump sum.

34 #

Ownership of Fund Shares

The directors owned shares in the funds as of December 31, 2017 as shown in the table below.



	Name of Director
	Jonathan S. Thomas ⁽¹⁾	Thomas W. Bunn	Barry Fink ⁽¹⁾	Andrea C. Hall, Ph.D. ⁽¹⁾	Jan M. Lewis ⁽¹⁾
Dollar Range of Equity Securities in the Funds:
Adaptive Equity	C	A	A	A	A
All Cap Growth	A	A	A	A	A
Balanced	A	C	A	D	A
Capital Value	A	A	A	A	A
Growth	E	A	A	E	A
Heritage	D	A	A	E	A
NT Growth	A	A	A	A	A
NT Heritage	A	A	A	A	A
Select	C	A	A	A	A
Small Cap Growth	B	A	A	D	D
Sustainable Equity	C	A	A	A	A
Ultra	E	A	A	E	A
Aggregate Dollar Range of Equity Securities in all Registered Investment Companies Overseen by Director in Family of Investment Companies	E	E	E	E	E

Ranges: A—none, B—$1-$10,000, C—$10,001-$50,000, D—$50,001-$100,000, E—More than $100,000

¹ This director owns shares of one or more registered investment companies in the American Century Investments family of funds that are not overseen by this board.



	Name of Director
	M. Jeannine Strandjord ⁽¹⁾	John R. Whitten ⁽¹⁾	Stephen E. Yates ⁽¹⁾
Dollar Range of Equity Securities in the Funds:	A	A	A
Adaptive Equity	A	C	A
All Cap Growth	A	A	A
Balanced	A	A	A
Capital Value	A	A	A
Growth	A	A	A
Heritage	A	A	A
NT Growth	A	A	A
NT Heritage	A	A	A
Select	A	A	A
Small Cap Growth	A	A	A
Sustainable Equity	A	A	A
Ultra	E	A	C
Aggregate Dollar Range of Equity Securities in all Registered Investment Companies Overseen by Director in Family of Investment Companies	E	E	E

Ranges: A—none, B—$1-$10,000, C—$10,001-$50,000, D—$50,001-$100,000, E—More than $100,000

¹ This director owns shares of one or more registered investment companies in the American Century Investments family of funds that are not overseen by this board.

35 #

Beneficial Ownership of Affiliates by Independent Directors

No independent director or his or her immediate family members beneficially owned shares of the advisor, the funds’ principal underwriter or any other person directly or indirectly controlling, controlled by, or under common control with the advisor or the funds’ principal underwriter as of December 31, 2017 .

Officers

The following table presents certain information about the executive officers of the funds. Each officer serves as an officer for 16 (in the case of Robert J. Leach, 15) investment companies in the American Century family of funds. No officer is compensated for his or her service as an officer of the funds. The listed officers are interested persons of the funds and are appointed or re-appointed on an annual basis. The mailing address for each officer listed below is 4500 Main Street, Kansas City, Missouri 64111.



Name (Year of Birth)	Offices with the Funds	Principal Occupation(s) During the Past Five Years
Jonathan S. Thomas (1963)	Director and President since 2007	President and Chief Executive Officer, ACC (2007 to present). Also serves as Chief Executive Officer, ACS; Executive Vice President, ACIM; Director, ACC, ACIM and other ACC subsidiaries
Amy D. Shelton (1964)	Chief Compliance Officer and Vice President since 2014	Chief Compliance Officer, American Century funds (2014 to present); Chief Compliance Officer, ACIM (2014 to present); Chief Compliance Officer, ACIS (2009 to present); Vice President, Client Interactions and Marketing, ACIS (2013 to 2014); Director, Client Interactions and Marketing, ACIS (2007 to 2013). Also serves as Vice President, ACIS
Charles A. Etherington (1957)	General Counsel since 2007 and Senior Vice President since 2006	Attorney, ACC (1994 to present); Vice President, ACC (2005 to present); General Counsel, ACC (2007 to present). Also serves as General Counsel, ACIM, ACS, ACIS and other ACC subsidiaries; and Senior Vice President, ACIM and ACS
C. Jean Wade (1964)	Vice President, Treasurer and Chief Financial Officer since 2012	Vice President, ACS (2000 to present)
Robert J. Leach (1966)	Vice President since 2006 and Assistant Treasurer since 2012	Vice President, ACS (2000 to present)
David H. Reinmiller (1963)	Vice President since 2000	Attorney, ACC (1994 to present); Associate General Counsel, ACC (2001 to present). Also serves as Vice President, ACIM and ACS
Ward D. Stauffer (1960)	Secretary since 2005	Attorney, ACC (2003 to present)

Code of Ethics

The funds, their investment advisor, principal underwriter and, if applicable, subadvisor have adopted codes of ethics under Rule 17j-1 of the Investment Company Act. They permit personnel subject to the codes to invest in securities, including securities that may be purchased or held by the funds, provided that they first obtain approval from the compliance department before making such investments.

Proxy Voting Policies

The advisor is responsible for exercising the voting rights associated with the securities purchased and/or held by the funds. The funds’ Board of Directors has approved the advisor’s proxy voting policies to govern the advisor’s proxy voting activities.

A copy of the advisor’s proxy voting policies is attached hereto as Appendix E. Information regarding how the advisor voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is available on the About Us page at americancentury.com. The advisor’s proxy voting record also is available on the SEC’s website at sec.gov.

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The Funds’ Principal Shareholders

A list of the funds’ principal shareholders appears in Appendix A .

Service Providers

The funds have no employees. To conduct the funds’ day-to-day activities, the corporation has hired a number of service providers. Each service provider has a specific function to fill on behalf of the funds that is described below.

ACIM, ACS and ACIS are wholly owned, directly or indirectly, by ACC. The Stowers Institute for Medical Research (SIMR) controls ACC by virtue of its beneficial ownership of more than 25% of the voting securities of ACC. SIMR is part of a not-for-profit biomedical research organization dedicated to finding the keys to the causes, treatments and prevention of disease.

Investment Advisor

American Century Investment Management, Inc. (ACIM) serves as the investment advisor for each of the funds. A description of the responsibilities of the advisor appears in each prospectus under the heading Management.

Each class of each fund is subject to a contractual unified management fee based on a percentage of the daily net assets of such class. For more information about the unified management fee, see The Investment Advisor under the heading Management in each fund’s prospectus. The amount of the fee is calculated daily and paid monthly in arrears. For each fund with a stepped fee schedule, the rate of the fee is determined by applying the formula indicated in the table below. This formula takes into account the assets of the fund as well as certain assets, if any, of other clients of the advisor outside the American Century Investments fund family (such as subadvised funds and separate accounts) that use very similar investment teams and strategies (strategy assets). For a fund with a corresponding NT fund, strategy assets for both funds also include the assets of the other. The use of strategy assets, rather than fund assets alone, in calculating the fee rate for a particular fund could allow the fund to realize scheduled cost savings more quickly. However, it is possible that a fund’s strategy assets will not include assets of other client accounts or that any such assets may not be sufficient to result in a lower fee rate. The management fee schedules for the funds appear below.

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Fund	Class	Percentage of Strategy Assets
Adaptive Equity	Investor, A and R	1.250% of the first $500 million 1.100% of the next $500 million 1.000% over $1 billion
	I	1.050% of the first $500 million 0.900% of the next $500 million 0.800% over $1 billion
	R6	0.900% of the first $500 million 0.750% of the next $500 million 0.650% over $1 billion
All Cap Growth	Investor, A, C and R	1.000%
	I	0.800%
Balanced	Investor	0.900% of the first $1 billion 0.800% over $1 billion
	I and R5	0.700% of the first $1 billion 0.600% over $1 billion
Capital Value	Investor and A	1.100% of the first $500 million 1.000% of the next $500 million 0.900% over $1 billion
	I	0.900% of the first $500 million 0.800% of the next $500 million 0.700% over $1 billion
Growth	Investor, A, C, and R	0.990% of the first $4 billion 0.970% of the next $4 billion 0.950% of the next $4 billion 0.930% of the next $4 billion 0.910% of the next $4 billion 0.890% of the next $5 billion 0.800% over $25 billion
	I and R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion
	Y and R6	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion

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Fund	Class	Percentage of Strategy Assets
Heritage	Investor, A, C and R	1.000%
	I and R5	0.800%
	Y and R6	0.650%
NT Growth	G	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
NT Heritage	G	0.650%
Select	Investor, A, C and R	0.990% of the first $4 billion 0.970% of the next $4 billion 0.950% of the next $4 billion 0.930% of the next $4 billion 0.910% of the next $4 billion 0.890% of the next $5 billion 0.800% over $25 billion
	I and R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion
	Y and R6	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
Small Cap Growth	Investor, A, C and R	1.500% of the first $250 million 1.250% of the next $250 million 1.150% of the next $250 million 1.100% over $750 million
	I and R5	1.300% of the first $250 million 1.050% of the next $250 million 0.950% of the next $250 million 0.900% over $750 million
	Y and R6	1.150% of the first $250 million 0.900% of the next $250 million 0.800% of the next $250 million 0.750% over $750 million

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Fund	Class	Percentage of Strategy Assets
Sustainable Equity	Investor, A, C and R	0.990% of the first $4 billion 0.970% of the next $4 billion 0.950% of the next $4 billion 0.930% of the next $4 billion 0.910% of the next $4 billion 0.890% of the next $5 billion 0.800% over $25 billion
	I and R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion
	Y	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion
Ultra	Investor, A, C and R	0.990% of the first $4 billion 0.970% of the next $4 billion 0.950% of the next $4 billion 0.930% of the next $4 billion 0.910% of the next $4 billion 0.890% of the next $5 billion 0.800% over $25 billion
	I and R5	0.790% of the first $4 billion 0.770% of the next $4 billion 0.750% of the next $4 billion 0.730% of the next $4 billion 0.710% of the next $4 billion 0.690% of the next $5 billion 0.600% over $25 billion
	Y and R6	0.640% of the first $4 billion 0.620% of the next $4 billion 0.600% of the next $4 billion 0.580% of the next $4 billion 0.560% of the next $4 billion 0.540% of the next $5 billion 0.450% over $25 billion

On each calendar day, each class of each fund accrues a management fee that is equal to the class’s management fee rate (as calculated pursuant to the above schedules) times the net assets of the class divided by 365 (366 in leap years). On the first business day of each month, the funds pay a management fee to the advisor for the previous month. The management fee is the sum of the daily fee calculations for each day of the previous month.

The management agreement between the corporation and the advisor shall continue in effect for a period of two years from its effective date (unless sooner terminated in accordance with its terms) and shall continue in effect from year to year thereafter for each fund so long as such continuance is approved at least annually by:


(1)	either the fund’s Board of Directors, or a majority of the outstanding voting securities of such fund (as defined in the Investment Company Act) and


(2)	the vote of a majority of the directors of the fund who are not parties to the agreement or interested persons of the advisor, cast in person at a meeting called for the purpose of voting on such approval.

The management agreement states that the funds’ Board of Directors or a majority of the outstanding voting securities of each class of such fund may terminate the management agreement at any time without payment of any penalty on 60 days’ written notice to the advisor. The management agreement shall be automatically terminated if it is assigned.

The management agreement states the advisor shall not be liable to the funds or their shareholders for anything other than willful misfeasance, bad faith, gross negligence or reckless disregard of its obligations and duties.

The management agreement also provides that the advisor and its officers, directors and employees may engage in other business, render services to others, and devote time and attention to any other business whether of a similar or dissimilar nature.

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Certain investments may be appropriate for the funds and also for other clients advised by the advisor. Investment decisions for the funds and other clients are made with a view to achieving their respective investment objectives after consideration of such factors as their current holdings, availability of cash for investment and the size of their investment generally. A particular security may be bought or sold for only one client or fund, or in different amounts and at different times for more than one but less than all clients or funds. A particular security may be bought for one client or fund on the same day it is sold for another client or fund, and a client or fund may hold a short position in a particular security at the same time another client or fund holds a long position. In addition, purchases or sales of the same security may be made for two or more clients or funds on the same date. The advisor has adopted procedures designed to ensure such transactions will be allocated among clients and funds in a manner believed by the advisor to be equitable to each. In some cases this procedure could have an adverse effect on the price or amount of the securities purchased or sold by a fund.

The advisor may aggregate purchase and sale orders of the funds with purchase and sale orders of its other clients when the advisor believes that such aggregation provides the best execution for the funds. The Board of Directors has approved the policy of the advisor with respect to the aggregation of portfolio transactions. To the extent equity trades are aggregated, shares purchased or sold are generally allocated to the participating portfolios pro rata based on order size. The advisor will not aggregate portfolio transactions of the funds unless it believes such aggregation is consistent with its duty to seek best execution on behalf of the funds and the terms of the management agreement. The advisor receives no additional compensation or remuneration as a result..3. of such aggregation.

Unified management fees incurred by each fund for the fiscal periods ended October 31, 2017 , 2016 and 2015 , are indicated in the following tables.



Unified Management Fees
Fund	2017	2016	2015
Adaptive Equity	$1,125,353 ⁽¹⁾	$1,155,646 ⁽⁶⁾	$1,228,503
All Cap Growth	$10,617,670	$10,421,132	$11,126,105
Balanced	$7,574,405	$7,196,676	$7,760,601
Capital Value	$1,525,604 ⁽²⁾	$1,417,457 ⁽⁷⁾	$1,565,030 ⁽⁸⁾
Growth	$69,251,286	$68,830,290	$81,881,774
Heritage	$48,419,791	$50,417,780	$57,346,695
NT Growth	$7,332,066 ⁽³⁾	$8,799,313	$8,842,658
NT Heritage	$4,504,604 ⁽⁴⁾	$5,384,003	$4,953,257
Select	$25,485,702 ⁽⁵⁾	$23,649,718	$24,278,320
Small Cap Growth	$6,799,101	$6,663,748	$5,839,142
Sustainable Equity	$2,152,986	$2,254,164	$2,476,423
Ultra	$87,250,585	$79,328,898	$82,072,398


¹	Amount shown reflects waiver by advisor of $ 98,454 in management fees.


²	Amount shown reflects waiver by advisor of $ 153,014 in management fees.


³	Amount shown reflects waiver by advisor of $ 2,145,687 in management fees.


⁴	Amount shown reflects waiver by advisor of $1,345,683 in management fees.


⁵	Amount shown reflects waiver by advisor of $ 139,827 in management fees.


⁶	Amount shown reflects waiver by advisor of $ 23,987 in management fees.


⁷	Amount shown reflects waiver by advisor of $142,193 in management fees.


⁸	Amount shown reflects waiver by advisor of $157,098 in management fees.

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Portfolio Managers

Accounts Managed

The portfolio managers are responsible for the day-to-day management of various accounts, as indicated by the following table. None of these accounts have an advisory fee based on the performance of the account.



Accounts Managed (As of October 31, 2017)
		Registered Investment Companies (e.g., American Century Investments funds and American Century Investments- subadvised funds)	Other Pooled Investment Vehicles (e.g., commingled trusts and 529 education savings plans)	Other Accounts (e.g., separate accounts and corporate accounts including incubation strategies and corporate money)
Jeffrey R. Bourke	Number of Accounts	2	0	1
Jeffrey R. Bourke	Assets	$10.5 billion ⁽¹⁾	N/A	$745.8 million
Robert J. Bove	Number of Accounts	1	0	0
Robert J. Bove	Assets	$228.8 million ⁽²⁾	N/A	N/A
Rob Brookby ⁽³⁾	Number of Accounts	3	1	1
Rob Brookby ⁽³⁾	Assets	$6.3 billion ⁽⁴⁾	$237.3 million	$12.7 million
Justin M. Brown	Number of Accounts	4	2	1
Justin M. Brown	Assets	$9.8 billion ⁽⁵⁾	$383.9 million	$477 million
Robert Gahagan	Number of Accounts	20	4	1
Robert Gahagan	Assets	$25.1 billion ⁽⁶⁾	$1.4 billion	$511.8 million
Brendan Healy	Number of Accounts	6	1	0
Brendan Healy	Assets	$3.5 billion ⁽⁷⁾	$495.5 million	N/A
Jeff Hoernemann	Number of Accounts	1	0	0
Jeff Hoernemann	Assets	$703.6 million ⁽⁸⁾	N/A	N/A
Brian Howell	Number of Accounts	21	6	5
Brian Howell	Assets	$25.0 billion ⁽⁶⁾	$1.6 billion	$964.6 million
Christopher J. Krantz	Number of Accounts	1	0	1
Christopher J. Krantz	Assets	$2.9 billion ⁽⁹⁾	N/A	$125.3 million
Keith Lee	Number of Accounts	4	0	2
Keith Lee	Assets	$13.3 billion ⁽¹⁰⁾	N/A	$871.0 million
Michael Li	Number of Accounts	4	0	2
Michael Li	Assets	$13.3 billion ⁽¹⁰⁾	N/A	$871.0 million
David MacEwen	Number of Accounts	26	38	1
David MacEwen	Assets	$42.4 billion ⁽⁶⁾	$9.1 billion	$11.0 million
Claudia Musat	Number of Accounts	9	2	0
Claudia Musat	Assets	$9.6 billion ⁽⁶⁾	$622.3 million	N/A
Stephen Pool	Number of Accounts	2	0	0
Stephen Pool	Assets	$206.3 million ⁽¹¹⁾	N/A	N/A
Joseph Reiland ⁽³⁾	Number of Accounts	4	0	0
Joseph Reiland ⁽³⁾	Assets	$1.6 billion ⁽¹²⁾	N/A	N/A
Steven Rossi	Number of Accounts	8	3	0
Steven Rossi	Assets	$8 billion ⁽⁶⁾	$740.2 million	N/A
Jackie Wagner	Number of Accounts	1	0	0
Jackie Wagner	Assets	$703.6 million ⁽⁸⁾	N/A	N/A
Brian Woglom	Number of Accounts	19	4	2
Brian Woglom	Assets	$21.7 billion ⁽⁷⁾	$1.5 billion	$80.7 million

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Gregory J. Woodhams ⁽³⁾	Number of Accounts	5	2	1
Gregory J. Woodhams ⁽³⁾	Assets	$11.2 billion ⁽¹³⁾	$416.5 million	$486 million
Nalin Yogasundram	Number of Accounts	3	1	1
Nalin Yogasundram	Assets	$6.4 billion ⁽¹⁴⁾	$219.3 million	$12.5 million


¹	Includes $10.2 billion in Ultra.


²	Includes $228.8 million in Sustainable Equity.


³	Information is provided as of February 14, 2018.


⁴	Includes $5.0 billion in Heritage and $793.6 million in NT Heritage.


⁵	Includes $228.8 million in Sustainable Equity, $8.2 billion in Growth and $1.4 billion in NT Growth.


⁶	Includes $890.0 million in Balanced.


⁷	Includes $152.4 million in Capital Value.


⁸	Includes $703.6 million in Small Cap Growth.


⁹	Includes $2.9 billion in Select.


¹⁰	Includes $2.9 billion in Select and $10.2 billion in Ultra.


¹¹	Includes $103.5 million in Adaptive Equity.


¹²	Includes $105.1 million in Adaptive Equity, $1.2 billion in All Cap Growth and $252.6 million in Sustainable Equity.


¹³	Includes $1.2 billion in All Cap Growth, $8.5 billion in Growth, $1.3 billion in NT Growth and $252.6 million in Sustainable Equity.


¹⁴	Includes $5.0 billion in Heritage and $825.0 million in NT Heritage.

Potential Conflicts of Interest

Certain conflicts of interest may arise in connection with the management of multiple portfolios. Potential conflicts include, for example, conflicts among investment strategies, such as one portfolio buying or selling a security while another portfolio has a differing, potentially opposite position in such security. This may include one portfolio taking a short position in the security of an issuer that is held long in another portfolio (or vice versa). Other potential conflicts may arise with respect to the allocation of investment opportunities, which are discussed in more detail below. American Century Investments has adopted policies and procedures that are designed to minimize the effects of these conflicts.

Responsibility for managing American Century Investments client portfolios is organized according to investment discipline. Investment disciplines include, for example, disciplined equity, global growth equity , global value equity , global fixed income and multi-asset strategies. Within each discipline are one or more portfolio teams responsible for managing specific client portfolios. Generally, client portfolios with similar strategies are managed by the same team using the same objective, approach, and philosophy. Accordingly, portfolio holdings, position sizes, and industry and sector exposures tend to be similar across similar portfolios, which minimizes the potential for conflicts of interest. In addition, American Century Investments maintains an ethical wall around each of its equity investment disciplines (global growth equity, global value equity, disciplined equity and global and non-U.S.), meaning that access to information regarding any portfolio’s transactional activities is only available to team members of the investment discipline that manages such portfolio.

The ethical wall is intended to aid in preventing the misuse of portfolio holdings information and trading activity in the other disciplines.

For each investment strategy, one portfolio is generally designated as the “policy portfolio.” Other portfolios with similar investment objectives, guidelines and restrictions, if any, are referred to as “tracking portfolios.” When managing policy and tracking portfolios, a portfolio team typically purchases and sells securities across all portfolios that the team manages. American Century Investments’ trading systems include various order entry programs that assist in the management of multiple portfolios, such as the ability to purchase or sell the same relative amount of one security across several funds. In some cases a tracking portfolio may have additional restrictions or limitations that cause it to be managed separately from the policy portfolio. Portfolio managers make purchase and sale decisions for such portfolios alongside the policy portfolio to the extent the overlap is appropriate, and separately, if the overlap is not.

American Century Investments may aggregate orders to purchase or sell the same security for multiple portfolios when it believes such aggregation is consistent with its duty to seek best execution on behalf of its clients. Orders of certain client portfolios may, by investment restriction or otherwise, be determined not available for aggregation. American Century Investments has adopted policies and procedures to minimize the risk that a client portfolio could be systematically advantaged or disadvantaged in connection with the aggregation of orders. To the extent equity trades are aggregated, shares purchased or sold are generally allocated to the participating portfolios pro rata based on order size. Because initial public offerings (IPOs) are usually available in limited supply and in amounts too small to permit across-the-board pro rata allocations, American Century Investments has adopted special procedures designed to promote a fair and equitable allocation of IPO securities among clients over time. Fixed-income securities transactions are not executed through a centralized trading desk. Instead, portfolio teams are responsible for executing trades with broker/dealers in a

43 #

predominantly dealer marketplace. Trade allocation decisions are made by the portfolio manager at the time of trade execution and orders entered on the fixed-income order management system.

Finally, investment of American Century Investments’ corporate assets in proprietary accounts may raise additional conflicts of interest. To mitigate these potential conflicts of interest, American Century Investments has adopted policies and procedures intended to provide that trading in proprietary accounts is performed in a manner that does not give improper advantage to American Century Investments to the detriment of client portfolios.

Compensation

American Century Investments portfolio manager compensation is structured to align the interests of portfolio managers with those of the shareholders whose assets they manage. As of October 31, 2017 , it includes the components described below, each of which is determined with reference to a number of factors such as overall performance, market competition, and internal equity.

Base Salary

Portfolio managers receive base pay in the form of a fixed annual salary.

Bonus

A significant portion of portfolio manager compensation takes the form of an annual incentive bonus tied to performance. Bonus payments are determined by a combination of factors. One factor is fund investment performance. Fund investment performance is generally measured by a combination of one-, three- and five-year pre-tax performance relative to various benchmarks and/or internally-customized peer groups, such as those indicated below. The performance comparison periods may be adjusted based on a fund’s inception date or a portfolio manager’s tenure on the fund. Unlike the funds’ other portfolio managers, David MacEwen is not separately compensated for his service as portfolio manager. Rather, as Co-Chief Investment Officer, a portion of Mr. MacEwen’s bonus is tied to the performance of all American Century funds under his purview, which is measured by an asset-weighted combination of one-, three- and five-year pre-tax performance relative to each fund’s benchmark and/or internally customized peer group (as described in each fund’s statement of additional information).



Fund	Benchmarks	Peer Group ⁽¹⁾
Adaptive Equity	Russell 1000 Index ⁽²⁾	Morningstar Mid-Cap Blend/Large Blend
All Cap Growth	Russell 3000 Growth Index	Morningstar Large Growth
Balanced	S&P 500 Index Bloomberg Barclays U.S. Aggregate Bond Index	Morningstar Moderate Allocation
Capital Value	Russell 1000 Value Index	Morningstar Large Value
Growth	Russell 1000 Growth Index	Morningstar Large Growth
Heritage	Russell Midcap Growth Index	Morningstar Mid-Cap Growth
NT Growth ⁽³⁾	N/A	N/A
NT Heritage ⁽³⁾	N/A	N/A
Select	Russell 1000 Growth Index	Morningstar Large Growth
Small Cap Growth	Russell 2000 Growth Index	Morningstar Small Growth
Sustainable Equity	S&P 500 Index	Morningstar Large Blend
Ultra	Russell 1000 Growth Index	Morningstar Large Growth


¹	Custom peer groups are constructed using all the funds in the indicated categories as a starting point. Funds are then eliminated from the peer group based on a standardized methodology designed to result in a final peer group that is both more stable over the long term (i.e., has less peer turnover) and that more closely represents the fund’s true peers based on internal investment mandates.


²	Effective July 1, 2016, the fund’s benchmark was changed from the Russell 3000 Index.


³	Performance of NT Growth and NT Heritage is not separately considered in determining portfolio manager compensation.

Portfolio managers may have responsibility for multiple American Century Investments mutual funds. In such cases, the performance of each is assigned a percentage weight appropriate for the portfolio manager’s relative levels of responsibility. Portfolio managers also may have responsibility for other types of similarly managed portfolios. If the performance of a similarly managed account is considered for purposes of compensation, it is measured in the same way as a comparable American Century Investments mutual fund (i.e., relative to the performance of a benchmark and/or peer group).

A second factor in the bonus calculation relates to the performance of a number of American Century Investments funds managed according to one of the following investment disciplines: global growth equity , global value equity , disciplined equity, global fixed-income, and multi-asset strategies. Performance is measured for each product individually as described above and then combined to create an overall composite for the product group. These composites may measure one-year performance (equal weighted) or a combination of one-, three- and five-year performance (equal or asset weighted) depending on the portfolio manager’s responsibilities

44 #

and products managed. This feature is designed to encourage effective teamwork among portfolio management teams in achieving long-term investment success for similarly styled portfolios.

A portion of portfolio managers’ bonuses may be tied to individual performance goals, such as research projects and the development of new products.

Restricted Stock Plans

Portfolio managers are eligible for grants of restricted stock of ACC. These grants are discretionary, and eligibility and availability can vary from year to year. The size of an individual’s grant is determined by individual and product performance as well as other product-specific considerations such as profitability. Grants can appreciate/depreciate in value based on the performance of the ACC stock during the restriction period (generally three to four years).

Deferred Compensation Plans

Portfolio managers are eligible for grants of deferred compensation. These grants are used in very limited situations, primarily for retention purposes. Grants are fixed and can appreciate/depreciate in value based on the performance of the American Century Investments mutual funds in which the portfolio manager chooses to invest them.

Ownership of Securities

The following table indicates the dollar range of securities of each fund beneficially owned by the fund’s portfolio managers as of October 31, 2017 .



Ownership of Securities
	Aggregate Dollar Range of Securities in Fund
Adaptive Equity
Stephen Pool	D
Joseph Reiland	E
All Cap Growth
Joseph Reiland ⁽¹⁾	C
Gregory J. Woodhams ⁽¹⁾	C
Balanced
Robert V. Gahagan ⁽²⁾	A
Brian Howell ⁽²⁾	A
G. David MacEwen ⁽²⁾	A
Claudia Musat ⁽²⁾	A
Steven Rossi ⁽²⁾	A
Capital Value
Brendan Healy	E
Brian Woglom	E
Growth
Justin Brown	E ⁽³⁾
Gregory J. Woodhams	G
Heritage
Rob Brookby ⁽¹⁾	A
Nalin Yogasundram	E

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Ownership of Securities
	Aggregate Dollar Range of Securities in Fund
NT Growth
Justin Brown ⁽⁴⁾	A
Gregory J. Woodhams ⁽⁴⁾	A
NT Heritage
Rob Brookby ⁽¹⁾⁽⁴⁾	A
Nalin Yogasundram ⁽⁴⁾	A
Select
Christopher J. Krantz	F
Keith Lee	G
Michael Li	E
Small Cap Growth
Jeff Hoernemann	D
Jackie Wagner	D
Sustainable Equity
Robert J. Bove	D
Justin M. Brown	C
Joseph Reiland	E
Gregory J. Woodhams	C
Ultra
Jeffrey R. Bourke	E
Keith Lee	G
Michael Li	F

Ranges: A – none; B – $1-$10,000; C – $10,001-$50,000; D – $50,001-$100,000; E – $100,001-$500,000; F – $500,001-$1,000,000; G – More than $1,000,000.


¹	Information is provided as of February 14, 2018.

^2. This portfolio manager serves on a team that oversees a number of funds in the same broad investment strategy and is not expected to invest in each such fund.


³	This figure excludes 401(k) investments in a collective trust vehicle that is managed substantially identically to Growth. Inclusion of such

401(k) investments would result in the amount categorized in the table as an F for Justin Brown.


⁴	The portfolio managers cannot invest directly in this fund, which is available for purchase only by certain funds of funds advised by American Century Investments.

Transfer Agent and Administrator

American Century Services, LLC (ACS), 4500 Main Street, Kansas City, Missouri 64111, serves as transfer agent and dividend-paying agent for the funds. It provides physical facilities, computer hardware and software and personnel for the day-to-day administration of the funds and the advisor. The advisor pays ACS’s costs for serving as transfer agent and dividend-paying agent for the funds out of the advisor’s unified management fee. For a description of this fee and the terms of its payment, see the above discussion under the caption Investment Advisor on page 37.

Proceeds from purchases of fund shares may pass through accounts maintained by the transfer agent at Commerce Bank, N.A. or UMB Bank, n.a. before being held at the fund’s custodian. Redemption proceeds also may pass from the custodian to the shareholder through such bank accounts.

From time to time, special services may be offered to shareholders who maintain higher share balances in our family of funds. These services may include the waiver of minimum investment requirements, expedited confirmation of shareholder transactions, newsletters and a team of personal representatives. Any expenses associated with these special services will be paid by the advisor.

Sub-Administrator

The advisor has entered into an Administration Agreement with State Street Bank and Trust Company (SSB) to provide certain fund accounting, fund financial reporting, tax and treasury/tax compliance services for the funds, including striking the daily net asset value for each fund. The advisor pays SSB a monthly fee as compensation for these services that is based on the total net assets of accounts in the American Century complex services by SSB. ACS does pay SSB for some additional services on a per fund basis. While ACS

46 #

continues to serve as the administrator of the funds, SSB provides sub-administrative services that were previously undertaken by ACS.

Distributor

The funds’ shares are distributed by American Century Investment Services, Inc. (ACIS), a registered broker-dealer. The distributor is a wholly owned subsidiary of ACC and its principal business address is 4500 Main Street, Kansas City, Missouri 64111.

The distributor is the principal underwriter of the funds’ shares. The distributor makes a continuous, best-efforts underwriting of the funds’ shares. This means the distributor has no liability for unsold shares. The advisor pays ACIS’s costs for serving as principal underwriter of the funds’ shares out of the advisor’s unified management fee. For a description of this fee and the terms of its payment, see the above discussion under the caption Investment Advisor on page 37. ACIS does not earn commissions for distributing the funds’ shares.

Certain financial intermediaries unaffiliated with the distributor or the funds may perform various administrative and shareholder services for their clients who are invested in the funds. These services may include assisting with fund purchases, redemptions and exchanges, distributing information about the funds and their performance, preparing and distributing client account statements, and other administrative and shareholder services that would otherwise be provided by the distributor or its affiliates. The distributor may pay fees out of its own resources to such financial intermediaries for providing these services.

Custodian Bank

State Street Bank and Trust Company (SSB), State Street Financial Center, One Lincoln Street, Boston, Massachusetts 02111 serves as custodian of the funds’ cash and securities. Foreign securities, if any, are held by foreign banks participating in a network coordinated by SSB. The custodian takes no part in determining the investment policies of the funds or in deciding which securities are purchased or sold by the funds. The funds, however, may invest in certain obligations of the custodian and may purchase or sell certain securities from or to the custodian.

Independent Registered Public Accounting Firm

Deloitte & Touche LLP is the independent registered public accounting firm of the funds. The address of Deloitte & Touche LLP is 1100 Walnut Street, Kansas City, Missouri 64106. As the independent registered public accounting firm of the funds, Deloitte & Touche LLP provides services including auditing the annual financial statements and financial highlights for each fund.

Brokerage Allocation

The advisor places orders for equity portfolio transactions with broker-dealers, who receive commissions for their services. Generally, commissions relating to securities traded on foreign exchanges will be higher than commissions relating to securities traded on U.S. exchanges. The advisor purchases and sells fixed-income securities through principal transactions, meaning the advisor normally purchases securities on a net basis directly from the issuer or a primary market-maker acting as principal for the securities. The funds generally do not pay a stated brokerage commission on these transactions, although the purchase price for debt securities usually includes an undisclosed compensation. Purchases of securities from underwriters typically include a commission or concession paid by the issuer to the underwriter, and purchases from dealers serving as market-makers typically include a dealer’s mark-up (i.e., a spread between the bid and asked prices).

Under the management agreement between the funds and the advisor, the advisor has the responsibility of selecting brokers and dealers to execute portfolio transactions. The funds’ policy is to secure the most favorable prices and execution of orders on its portfolio transactions. The advisor selects broker-dealers on their perceived ability to obtain “best execution” in effecting transactions in its clients’ portfolios. In selecting broker-dealers to effect portfolio transactions relating to equity securities, the advisor considers the full range and quality of a broker-dealer’s research and brokerage services, including, but not limited to, the following:


•	applicable commission rates and other transaction costs charged by the broker-dealer


•	value of research provided to the advisor by the broker-dealer (including economic forecasts, fundamental and technical advice on individual securities, market analysis, and advice, either directly or through publications or writings, as to the value of securities, availability of securities or of purchasers/sellers of securities)


•	timeliness of the broker-dealer’s trade executions


•	efficiency and accuracy of the broker-dealer’s clearance and settlement processes


•	broker-dealer’s ability to provide data on securities executions


•	financial condition of the broker-dealer


•	the quality of the overall brokerage and customer service provided by the broker-dealer

In transactions to buy and sell fixed-income securities, the selection of the broker- dealer is determined by the availability of the desired security and its offering price, as well as the broker-dealer’s general execution and operational and financial capabilities in the

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type of transaction involved. The advisor will seek to obtain prompt execution of orders at the most favorable prices or yields. The advisor does not consider the receipt of products or services other than brokerage or research services in selecting broker-dealers.

On an ongoing basis, the advisor seeks to determine what levels of commission rates are reasonable in the marketplace. In evaluating the reasonableness of commission rates, the advisor considers:


•	rates quoted by broker-dealers


•	the size of a particular transaction, in terms of the number of shares, dollar amount, and number of clients involved


•	the ability of a broker-dealer to execute large trades while minimizing market impact


•	the complexity of a particular transaction


•	the nature and character of the markets on which a particular trade takes place


•	the level and type of business done with a particular firm over a period of time


•	the ability of a broker-dealer to provide anonymity while executing trades


•	historical commission rates


•	rates that other institutional investors are paying, based on publicly available information

The brokerage commissions paid by the funds may exceed those that another broker-dealer might have charged for effecting the same transactions, because of the value of the brokerage and research services provided by the broker-dealer. Research services furnished by broker-dealers through whom the funds effect securities transactions may be used by the advisor in servicing all of its accounts, and not all such services may be used by the advisor in managing the portfolios of the funds.

Pursuant to its internal allocation procedures, the advisor regularly evaluates the brokerage and research services provided by each broker-dealer that it uses. On a semi-annual basis, each member of the advisor’s portfolio management team rates the quality of research and brokerage services provided by each broker-dealer that provides execution services and research to the advisor for its clients’ accounts. The resulting scores are used to rank these broker-dealers on a broker research list. In the event that the advisor has determined that best execution for a particular transaction may be obtained by more than one broker-dealer, the advisor may consider the relative positions of the broker-dealer on this list in determining the party through which to execute the transaction. Actual business received by any firm may be more or less than other broker-dealers with a similar rank. Execution-only brokers are used where deemed appropriate.

In the fiscal years ended October 31, 2017, 2016 and 2015 , the brokerage commissions including, as applicable, futures commissions, of each fund are listed in the following table.



Fund	2017	2016	2015
Adaptive Equity	$88,102	$152,342	$172,420
All Cap Growth	$264,045	$290,799	$278,359
Balanced	$196,392	$233,961	$199,041
Capital Value	$16,289	$35,264	$27,317
Growth	$1,902,906	$1,666,254	$2,861,802
Heritage	$1,756,777	$1,769,318	$2,134,215
NT Growth	$348,439	$285,235	$457,394
NT Heritage	$283,583	$250,608	$263,448
Select	$238,954	$206,820	$320,267
Small Cap Growth	$338,332	$605,046	$471,852
Sustainable Equity	$28,293	$61,043	$26,603
Ultra	$815,910	$735,353	$758,465

Brokerage commissions paid by a fund may vary significantly from year to year as a result of changing asset levels throughout the year, portfolio turnover, varying market conditions, and other factors.

The funds’ distributor (ACIS) and investment advisor (ACIM) are wholly owned, directly or indirectly, by ACC. Nomura Holdings, Inc. (Nomura) is an equity investor in ACC. The fund listed below paid a subsidiary of Nomura (Affiliated Broker) the following brokerage commissions for the fiscal years ended October 31, 2017, October 31, 2016, and October 31, 2015.



Fund	2017	2016	2015
Ultra	$25,793	—	—

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For the fiscal year ended October 31, 2017, the following table shows the percentage of the fund’s aggregate brokerage commissions paid to the Affiliated Broker and the percentage of the fund’s aggregate dollar amount of portfolio transactions involving the payment of commissions effected through the Affiliated Broker.



Fund	Percentage of Brokerage Commissions	Percentage of Dollar Amount Portfolio Transactions
Ultra	3.16%	0.85%

Regular Broker-Dealers

As of October 31, 2017 , each of the funds listed below owned securities of its regular brokers or dealers (as defined by Rule 10b-1 under the Investment Company Act of 1940) or of their parent companies.



Fund	Broker, Dealer or Parent	Value of Securities Owned As of October 31, 2017 (in thousands)
Adaptive Equity	None
All Cap Growth	Charles Schwab & Co., Inc.	$11,379
Balanced	Bank of America Corp.	$8,430
	Barclays Capital, Inc.	$424
	Credit Suisse Group	$543
	Deutsche Bank AG	$295
	JPMorgan Chase & Co.	$12,158
	Jefferies LLC	$192
	Morgan Stanley & Co., Inc.	$2,553
	UBS AG	$519
	Wells Fargo & Co.	$7,968
Capital Value	Ameriprise Financial, Inc.	$848
	Bank of America Corp.	$3,840
	Citigroup, Inc.	$2,933
	JPMorgan Chase & Co.	$4,937
	Morgan Stanley & Co., Inc.	$1,076
	State Street Corporation	$1,880
	Wells Fargo & Co.	$4,781
Growth	Bank of America Corp.	$51,945
	Charles Schwab & Co., Inc.	$90,421
Heritage	None
NT Growth	Bank of America Corp.	$8,636
	Charles Schwab & Co., Inc.	$15,045
NT Heritage	None
Select	JPMorgan Chase & Co.	$53,766
Small Cap Growth	None
Sustainable Equity	Ameriprise Financial, Inc.	$1,729
	Bank of America Corp.	$4,915
	JPMorgan Chase & Co.	$9,092
Ultra	JPMorgan Chase & Co.	$164,497

Information About Fund Shares

Each of the funds named on the front of this statement of additional information is a series of shares issued by the corporation, and shares of each fund have equal voting rights. In addition, each series (or fund) may be divided into separate classes. See Multiple Class Structur e, which follows. Additional funds and classes may be added without a shareholder vote.

Each fund votes separately on matters affecting that fund exclusively. Voting rights are not cumulative, so investors holding more than 50% of the corporation’s (all funds’) outstanding shares may be able to elect a Board of Directors. The corporation undertakes dollar-

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based voting, meaning that the number of votes a shareholder is entitled to is based upon the dollar amount of the shareholder’s investment. The election of directors is determined by the votes received from all the corporation’s shareholders without regard to whether a majority of shares of any one fund voted in favor of a particular nominee or all nominees as a group.

The assets belonging to each series are held separately by the custodian and the shares of each series represent a beneficial interest in the principal, earnings and profit (or losses) of investments and other assets held for each series. Within their respective series, all shares have equal redemption rights. Each share, when issued, is fully paid and non-assessable.

Each shareholder has rights to dividends and distributions declared by the fund he or she owns and to the net assets of such fund, upon its liquidation or dissolution, proportionate to his or her share ownership interest in the fund.

Multiple Class Structure

The corporation’s Board of Directors has adopted a multiple class plan pursuant to Rule 18f-3 adopted by the SEC. The plan is described in the prospectus of any fund that offers more than one class. Pursuant to such plan, the funds may issue the following classes of shares: Investor Class, I Class, Y Class, A Class, C Class, R Class, R5 Class, R6 Class and G Class. Not all funds offer all classes.

Shares of the NT funds are only available for purchase by certain funds advised by American Century Investments. Shares of all other funds are available as follows. The Investor Class is made available to investors directly from American Century Investments and/or through some financial intermediaries. Additional information regarding eligibility for Investor Class shares may be found in the funds’ prospectuses. The I Class is made available to institutional shareholders or through financial intermediaries that provide various shareholder and administrative services. Y Class shares are available through financial intermediaries that offer fee-based advisory programs. The A and C Classes also are made available through financial intermediaries, for purchase by individual investors who receive advisory and personal services from the intermediary. The R Class is made available through financial intermediaries and is generally used in 401(k) and other retirement plans. The R5 and R6 Classes are generally available only to participants in employer-sponsored retirement plans where a financial intermediary provides recordkeeping services to plan participants. The classes have different unified management fees as a result of their separate arrangements for shareholder services. In addition, the A, C and R Class shares each are subject to a separate Master Distribution and Individual Shareholder Services Plan (the A Class Plan, C Class Plan and R Class Plan, respectively, and collectively, the plans) described below. The plans have been adopted by the funds’ Board of Directors in accordance with Rule 12b-1 adopted by the SEC under the Investment Company Act.

Rule 12b-1

Rule 12b-1 permits an investment company to pay expenses associated with the distribution of its shares in accordance with a plan adopted by its Board of Directors and approved by its shareholders. Pursuant to such rule, the Board of Directors of the funds’ A, C and R Classes have approved and entered into the A Class Plan, C Class Plan and R Class Plan, respectively. The plans are described below.

In adopting the plans, the Board of Directors (including a majority of directors who are not interested persons of the funds, as defined in the Investment Company Act, hereafter referred to as the independent directors) determined that there was a reasonable likelihood that the plans would benefit the funds and the shareholders of the affected class. Some of the anticipated benefits include improved name recognition of the funds generally; and growing assets in existing funds, which helps retain and attract investment management talent, provides a better environment for improving fund performance, and can lower the total expense ratio for funds with stepped-fee schedules. Pursuant to Rule 12b-1, information about revenues and expenses under the plans is presented to the Board of Directors quarterly. Continuance of the plans must be approved by the Board of Directors, including a majority of the independent directors, annually. The plans may be amended by a vote of the Board of Directors, including a majority of the independent directors, except that the plans may not be amended to materially increase the amount to be spent for distribution without majority approval of the shareholders of the affected class. The plans terminate automatically in the event of an assignment and may be terminated upon a vote of a majority of the independent directors or by vote of a majority of outstanding shareholder votes of the affected class.

All fees paid under the plans will be made in accordance with Section 2830 of the Conduct Rules of the Financial Industry Regulatory Authority (FINRA).

The Share Class Plans

As described in the prospectuses, the A, C and R Class shares of the funds are made available to persons purchasing through broker-dealers, banks, insurance companies and other financial intermediaries that provide various administrative, shareholder and distribution services. In addition, the A, C, and R Classes are made available to participants in employer-sponsored retirement plans. The funds’ distributor enters into contracts with various banks, broker-dealers, insurance companies and other financial intermediaries, with respect to the sale of the funds’ shares and/or the use of the funds’ shares in various investment products or in connection with various financial services.

Certain recordkeeping and administrative services that would otherwise be performed by the funds’ transfer agent may be performed by a plan sponsor (or its agents) or by a financial intermediary for A, C and R Class investors. In addition to such services, the financial intermediaries provide various individual shareholder and distribution services.

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To enable the funds’ shares to be made available through such plans and financial intermediaries, and to compensate them for such services, the funds’ Board of Directors has adopted the A, C and R Class Plans. Pursuant to the plans, the following fees are paid and described further below.

A Class

The A Class pays the funds’ distributor 0.25% annually of the average daily net asset value of the A Class shares. The distributor may use these fees to pay for certain ongoing shareholder and administrative services and for distribution services, including past distribution services. This payment is fixed at 0.25% and is not based on expenses incurred by the distributor.

C Class

The C Class pays the funds’ distributor 1.00% annually of the average daily net asset value of the funds’ C Class shares, 0.25% of which is paid for certain ongoing individual shareholder and administrative services and 0.75% of which is paid for distribution services, including past distribution services. This payment is fixed at 1.00% and is not based on expenses incurred by the distributor.

R Class

The R Class pays the funds’ distributor 0.50% annually of the average daily net asset value of the R Class shares. The distributor may use these fees to pay for certain ongoing shareholder and administrative services and for distribution services, including past distribution services. This payment is fixed at 0.50% and is not based on expenses incurred by the distributor.

During the fiscal year ended October 31, 2017 , the aggregate amount of fees paid under each class plan was:



	A Class	C Class	R Class
Adaptive Equity	$63	—	$190
All Cap Growth	$26,294	$44,892	$72,160
Capital Value	$10,337	—	—
Growth	$333,537	$98,724	$490,381
Heritage	$1,152,800	$958,725	$205,597
Select	$95,990	$49,373	$15,466
Small Cap Growth	$197,554	$94,984	$15,255
Sustainable Equity	$186,659	$184,969	$19,028
Ultra	$166,721	$38,805	$51,808

The distributor then makes these payments to the financial intermediaries (including underwriters and broker-dealers, who may use some of the proceeds to compensate sales personnel) who offer the A, C and R Class shares for the services described below. No portion of these payments is used by the distributor to pay for advertising, printing costs or interest expenses.

Payments may be made for a variety of individual shareholder services, including, but not limited to:


(a)	providing individualized and customized investment advisory services, including the consideration of shareholder profiles and specific goals;


(b)	creating investment models and asset allocation models for use by shareholders in selecting appropriate funds;


(c)	conducting proprietary research about investment choices and the market in general;


(d)	periodic rebalancing of shareholder accounts to ensure compliance with the selected asset allocation;


(e)	consolidating shareholder accounts in one place;


(f)	paying service fees for providing personal, continuing services to investors, as contemplated by the Conduct Rules of FINRA; and


(g)	other individual services.

Individual shareholder services do not include those activities and expenses that are primarily intended to result in the sale of additional shares of the funds.

Distribution services include any activity undertaken or expense incurred that is primarily intended to result in the sale of A, C and R Class shares, which services may include but are not limited to:


(a)	paying sales commissions, on-going commissions and other payments to brokers, dealers, financial institutions or others who sell A, C and R Class shares pursuant to selling agreements;


(b)	compensating registered representatives or other employees of the distributor who engage in or support distribution of the funds’ A, C and R Class shares;


(c)	paying and compensating expenses (including overhead and telephone expenses) of the distributor;


(d)	printing prospectuses, statements of additional information and reports for other-than-existing shareholders;


(e)	preparing, printing and distributing sales literature and advertising materials provided to the funds’ shareholders and prospective shareholders;

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(f)	receiving and answering correspondence from prospective shareholders, including distributing prospectuses, statements of additional information, and shareholder reports;


(g)	providing facilities to answer questions from prospective shareholders about fund shares;


(h)	complying with federal and state securities laws pertaining to the sale of fund shares;


(i)	assisting shareholders in completing application forms and selecting dividend and other account options;


(j)	providing other reasonable assistance in connection with the distribution of fund shares;


(k)	organizing and conducting sales seminars and payments in the form of transactional and compensation or promotional incentives;


(l)	profit on the foregoing; and


(m)	such other distribution and services activities as the advisor determines may be paid for by the funds pursuant to the terms of the agreement between the corporation and the funds’ distributor and in accordance with Rule 12b1 of the Investment Company Act.

Valuation of a Fund’s Securities

The net asset value (NAV) for each class of each fund is calculated by adding the value of all portfolio securities and other assets attributable to the class, deducting liabilities and dividing the result by the number of shares of the class outstanding. Expenses and interest earned on portfolio securities are accrued daily.

All classes of the funds except the A Class are offered at their NAV. The A Class of the funds is offered at its public offering price, which is the net asset value plus the appropriate sales charge. This calculation may be expressed as a formula:

Offering Price = NAV/(1 – Sales Charge as a % of Offering Price)

For example, if the NAV of a fund’s A Class shares is $5.00, the public offering price would be $5/(1-5.75%) = $5.31.

Each fund’s NAV is calculated as of the close of business of the New York Stock Exchange (the NYSE) each day the NYSE is open for business. The NYSE usually closes at 4 p.m. Eastern time. The NYSE typically observes the following holidays: New Year’s Day, Martin Luther King Jr. Day, Presidents’ Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Although the funds expect the same holidays to be observed in the future, the NYSE may modify its holiday schedule at any time.

Debt securities not traded on a principal securities exchange are valued through valuations obtained from a commercial pricing service or at the most recent mean of the bid and asked prices provided by investment dealers in accordance with procedures established by the Board of Directors.

Because there are hundreds of thousands of municipal issues outstanding, and the majority of them do not trade daily, the prices provided by pricing services for these types of securities are generally determined without regard to bid or last sale prices. In valuing securities, the pricing services generally take into account institutional trading activity, trading in similar groups of securities, and any developments related to specific securities. The methods used by the pricing service and the valuations so established are reviewed by the advisor under the general supervision of the Board of Directors. There are a number of pricing services available, and the advisor, on the basis of ongoing evaluation of these services, may use other pricing services or discontinue the use of any pricing service in whole or in part.

Securities maturing within 60 days of the valuation date may be valued at cost, plus or minus any amortized discount or premium, unless the directors determine that this would not result in fair valuation of a given security. Other assets and securities for which quotations are not readily available are valued in good faith using methods approved by the Board of Directors.

Trading in securities on European and Far Eastern securities exchanges and over-the-counter markets is normally completed at various times before the close of business on each day that the NYSE is open. If an event were to occur after the value of a security was established, but before the NAV was determined, that was likely to materially change the NAV, then that security would be valued as determined in accordance with procedures adopted by the Board of Directors.

Trading of these securities in foreign markets may not take place on every day that the NYSE is open. In addition, trading may take place in various foreign markets and on some electronic trading networks on Saturdays or on other days when the NYSE is not open and on which the funds’ NAVs are not calculated. Therefore, such calculations do not take place contemporaneously with the

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determination of the prices of many of the portfolio securities used in such calculation, and the value of the funds’ portfolios may be affected on days when shares of the funds may not be purchased or redeemed.

Taxes

Federal Income Tax

Each fund intends to qualify annually as a regulated investment company (RIC) under Subchapter M of the Internal Revenue Code of 1986, as amended (the Code). RICs generally are not subject to federal and state income taxes. To qualify as a RIC a fund must, among other requirements, distribute substantially all of its net investment income and net realized capital gains (if any) to investors each year. If a fund were not eligible to be treated as a RIC, it would be liable for taxes at the fund level on all its income, significantly reducing its distributions to investors and eliminating investors’ ability to treat distributions received from the fund in the same manner in which they were realized by the fund. Under certain circumstances, the Code allows funds to cure deficiencies that would otherwise result in the loss of RIC status, including by paying a fund-level tax.

To qualify as a RIC, a fund must meet certain requirements of the Code, among which are requirements relating to sources of its income and diversification of its assets. A fund is also required to distribute 90% of its investment company taxable income each year. Additionally, a fund must declare dividends by December 31 of each year equal to at least 98% of ordinary income (as of December 31) and 98.2% of capital gains (as of October 31) to avoid the nondeductible 4% federal excise tax on any undistributed amounts.

A fund’s transactions in foreign currencies, forward contracts, options and futures contracts (including options and futures contracts on foreign currencies) will be subject to special provisions of the Code that, among other things, may affect the character of gains and losses realized by the fund (i.e., may affect whether gains or losses are ordinary or capital), accelerate recognition of income to the fund, defer fund losses, and affect the determination of whether capital gains and losses are characterized as long-term or short-term capital gains or losses. These rules could therefore affect the character, amount and timing of distributions to shareholders. These provisions also may require a fund to mark-to-market certain types of the positions in its portfolio (i.e., treat them as if they were sold), which may cause the fund to recognize income without receiving cash with which to make distributions in amounts necessary to satisfy the distribution requirements of the Code for relief from income and excise taxes. A fund will monitor its transactions and may make such tax elections as fund management deems appropriate with respect to these transactions.

A fund’s investment in foreign securities may be subject to withholding and other taxes imposed by foreign countries. However, tax conventions between certain countries and the United States may reduce or eliminate such taxes. Any foreign taxes paid by a fund will reduce its dividend distributions to investors.

If a fund purchases the securities of certain foreign investment entities called passive foreign investment companies (PFIC), capital gains on the sale of those holdings will be deemed ordinary income regardless of how long the fund holds the investment. The fund also may be subject to corporate income tax and an interest charge on certain dividends and capital gains earned from these investments, regardless of whether such income and gains are distributed to the fund. To avoid such tax and interest, the fund may elect to treat PFICs as sold on the last day of its fiscal year, mark-to-market these securities, and recognize any unrealized gains (or losses, to the extent of previously recognized gains) as ordinary income each year.

As of October 31, 2017 , the funds had no capital loss carryovers. When a fund has a capital loss carryover, it does not make capital gains distributions until the loss has been offset. The Regulated Investment Company Modernization Act of 2010 allows the funds to carry forward capital losses incurred in future taxable years for an unlimited period.

If you have not complied with certain provisions of the Internal Revenue Code and Regulations, either American Century Investments or your financial intermediary is required by federal law to withhold and remit to the IRS the applicable federal withholding rate of reportable payments (which may include dividends, capital gains distributions and redemption proceeds). Those regulations require you to certify that the Social Security number or tax identification number you provide is correct and that you are not subject to withholding for previous under-reporting to the IRS. You will be asked to make the appropriate certification on your account application. Payments reported by us to the IRS that omit your Social Security number or tax identification number will subject us to a non-refundable penalty of $50, which will be charged against your account if you fail to provide the certification by the time the report is filed.

If fund shares are purchased through taxable accounts, distributions of either cash or additional shares of net investment income and net short-term capital gains are taxable to you as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of a fund, in which case such distributions are taxed at the same rate as long-term capital gains. Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period. The required holding period for qualified dividend income is met if the underlying shares are held more than 60 days in the 121-day period beginning 60 days prior to the ex-dividend date. Dividends received by the funds on shares of stock of domestic corporations may qualify for the 70% dividends received deduction when distributed to corporate shareholders to the extent that the fund held those shares for more than 45 days.

Distributions from gains on assets held by the funds longer than 12 months are taxable as long-term gains regardless of the length of time you have held your shares in the fund. If you purchase shares in the fund and sell them at a loss within six months, your loss on

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the sale of those shares will be treated as a long-term capital loss to the extent of any long-term capital gains dividend you received on those shares.

Each fund may use the “equalization method” of accounting to allocate a portion of its earnings and profits to redemption proceeds. Although using this method generally will not affect a fund’s total returns, it may reduce the amount that a fund would otherwise distribute to continuing shareholders by reducing the effect of redemptions of fund shares on fund distributions to shareholders.

A redemption of shares of a fund (including a redemption made in an exchange transaction) will be a taxable transaction for federal income tax purposes and you generally will recognize gain or loss in an amount equal to the difference between the basis of the shares and the amount received. If a loss is realized on the redemption of fund shares, the reinvestment in additional fund shares within 30 days before or after the redemption may be subject to the “wash sale” rules of the Code, resulting in a postponement of the recognition of such loss for federal income tax purposes.

A 3.8% Medicare contribution tax is imposed on net investment income, including interest, dividends and capital gains, provided you meet specified income levels.

State and Local Taxes

Distributions by the funds also may be subject to state and local taxes, even if all or a substantial part of such distributions are derived from interest on U.S. government obligations which, if you received such interest directly, would be exempt from state income tax. However, most but not all states allow this tax exemption to pass through to fund shareholders when a fund pays distributions to its shareholders. You should consult your tax advisor about the tax status of such distributions in your state.

The information above is only a summary of some of the tax considerations affecting the funds and their U.S. shareholders. No attempt has been made to discuss individual tax consequences. A prospective investor should consult with his or her tax advisors or state or local tax authorities to determine whether the funds are suitable investments.

Financial Statements

The funds’ financial statements and financial highlights for the fiscal year ended October 31, 2017 have been audited by Deloitte & Touche LLP, independent registered public accounting firm. Their Reports of Independent Registered Public Accounting Firm and the financial statements included in the annual reports of each of these funds for the fiscal year ended October 31, 2017 , are incorporated herein by reference.

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Appendix A – Principal Shareholders

As of January 31, 2018 , the following shareholders owned more than 5% of the outstanding shares of a class of a fund. The table shows shares owned of record unless otherwise noted.



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
Adaptive Equity
Investor Class
	None
I Class
	RBC Capital Markets LLC Jerrys Enterprises Inc Edina, Minnesota	70%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	17%
	MLP&S Jacksonville, Florida	8%
A Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	100%
R Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	40%
	SSB&T Invictus Associates LLC Chesapeake, Virginia	22%
	SSB&T Ambassador Abstract LLC Huntington, New York	9%
	SSB&T PDM Technology North America Nashville, Tennessee	6%
	SSB&T Choice Property Management Service Darnestown, Maryland	5%
R6 Class
	Charles Schwab & Co Inc San Francisco, California	89%
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	11%
All Cap Growth
Investor Class
	None
I Class
	UBSFI Weehawken, New Jersey	33%
	National Financial Services LLC Jersey City, New Jersey	27%
	Morgan Stanley Smith Barney Jersey City, New Jersey	25%
	Nationwide Trust Co Columbus, Ohio	9%

A-1 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
A Class
	BNY Mellon Investment Servicing Inc FBO Primerica Financial Services King of Prussia, Pennsylvania	50%
	National Financial Services LLC Jersey City, New Jersey	10%
	Pershing LLC Jersey City, New Jersey	10%
	American Enterprise Investment Svc Minneapolis, Minnesota	6%
C Class
	American Enterprise Investment Svc Minneapolis, Minnesota	24%
	Morgan Stanley Smith Barney Jersey City, New Jersey	18%
	National Financial Services LLC Jersey City, New Jersey	12%
	Raymond James St. Petersburg, Florida	11%
	Pershing LLC Jersey City, New Jersey	6%
	LPL Financial San Diego, California	5%
	UBSFSI Weehawken, New Jersey	5%
R Class
	PIMS/Prudential Retirement Nominee Trustee Custodian Hartford, Connecticut	85%
Balanced
Investor Class
	Charles Schwab & Co Inc San Francisco, California	7%
	National Financial Services LLC Jersey City, New Jersey	7%
I Class
	Charles Schwab & Co Inc San Francisco, California	41%
	T Rowe Price Retirement Plan Svcs FBO Retirement Plan Clients Owings Mills, Maryland	27%
	National Financial Services LLC Jersey City, New Jersey	10%
R5 Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	100%
Capital Value
Investor Class
	Charles Schwab & Co Inc San Francisco, California	18%
	National Financial Services LLC Jersey City, New Jersey	8%

A-2 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
I Class
	Band & Co C/O US Bank Milwaukee, Wisconsin	27%
	Capinco C/O US Bank Milwaukee, Wisconsin	23%
	MLPF&S Jacksonville, Florida	22%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	12%
	Morgan Stanley Smith Barney Jersey City, New Jersey	9%
A Class
	Nationwide Trust Company FSB Columbus, Ohio	23%
	BNY Mellon Investment Servicing Inc FBO Primerica Financial Services King of Prussia, Pennsylvania	23%
	Raymond James St. Petersburg, Florida	11%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	8%
	LPL Financial San Diego, California	8%
Growth
Investor Class
	Charles Schwab & Co Inc San Francisco, California	7%
	National Financial Services LLC Jersey City, New Jersey	6%
I Class
	Wells Fargo Clearing Services LLC St. Louis, Missouri	54%
	National Financial Services LLC Jersey City, New Jersey	9%
	Morgan Stanley Smith Barney Jersey City, New Jersey	8%
	Charles Schwab & Co Inc San Francisco, California	5%
Y Class
	JP Morgan Securities LLC Brooklyn, New York	100%
A Class
	Hartford Life Insurance Company Hartford, Connecticut	21%
	MLPF&S Jacksonville, Florida	19%
	National Financial Services LLC Jersey City, New Jersey	7%

A-3 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
C Class
	Wells Fargo Clearing Services LLC St. Louis, Missouri	35%
	Morgan Stanley Smith Barney Jersey City, New Jersey	15%
	American Enterprise Investment Svcs Minneapolis, Minnesota	14%
	MLPF&S Jacksonville, Florida	12%
	National Financial Services LLC Jersey City, New Jersey	5%
R Class
	Hartford Life Insurance Company Hartford, Connecticut	72%
	National Financial Services LLC Jersey City, New Jersey	6%
	VOYA Institutional Trust Company Windsor, Connecticut	6%
R5 Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	100%
R6 Class
	National Financial Services LLC Jersey City, New Jersey	60%
	DCGT Trustee &/or Custodian FBO PLIC Various Retirement Plans Des Moines, Iowa	19%
Heritage
Investor Class
	National Financial Services LLC Jersey City, New Jersey	8%
	John Hancock Life Ins Co USA Boston, Massachusetts	6%
	Charles Schwab & Co Inc San Francisco, California	5%
I Class
	National Financial Services LLC Jersey City, New Jersey	18%
	UBSFSI Weehawken, New Jersey	14%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	10%
	Morgan Stanley Smith Barney Jersey City, New Jersey	9%
	MLPF&S Jacksonville, Florida	9%
	Charles Schwab & Co Inc San Francisco, California	8%

A-4 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
Y Class
	Pershing LLC Jersey City, New Jersey	93%
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	7%
A Class
	State Street Bank as TTEE and/or Cust FBO ADP Access Product Boston, Massachusetts Includes 16.25% registered for the benefit of ADP Access	18%
	Pershing LLC Jersey City, New Jersey	8%
	UMB Bank NA Topeka, Kansas	8%
	American United Life Indianapolis, Indiana Includes 5.54% registered for the benefit of Group Retirement Annuity II	8%
	American Enterprise Investment Svc Minneapolis, Minnesota	6%
	National Financial Services LLC Jersey City, New Jersey	6%
C Class
	American Enterprise Investment Svc Minneapolis, Minnesota	19%
	Morgan Stanley Smith Barney Jersey City, New Jersey	14%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	13%
	Pershing LLC Jersey City, New Jersey	9%
	National Financial Services LLC Jersey City, New Jersey	7%
	MLPF&S Inc Jacksonville, Florida	6%
	LPL Financial San Diego, California	6%
	Raymond James St. Petersburg, Florida	5%
	UBSFSI Weehawken, New Jersey	5%
R Class
	State Street Bank as TTEE and/or Cust FBO ADP Access Product Boston, Massachusetts	21%
	PIMS/Prudential Ret Plan Nominee Trustee Custodian Hartford, Connecticut Includes 15.11% registered for the benefit of 007 Prudential Smart Solution IRA and 5.02% registered for the benefit of 006 Prudential Smart Solution IRA	21%
	Hartford Life Insurance Company Hartford, Connecticut	14%

A-5 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
R5 Class	Mid Atlantic Trust Co FBO Pittsburgh, Pennsylvania Includes 70.97% registered for the benefits of 403(b) Thrift Plan of Goodwill Industries, 16.91% registered for the benefits of HOC Transport Company 401K Retire, and 8.57% registered for the benefits of Carlisle McNellie & Rini Co LPA	96%
R6 Class
	Charles Schwab & Co Inc San Francisco, California	18%
	Saxon & Co Cleveland, Ohio	14%
	National Financial Services LLC Jersey City, New Jersey	12%
	DCGT Trustee &/or Custodian FBO PLIC Various Retirement Plans Des Moines, Iowa	10%
	PIMS/Prudential Retirement Plan Morgan Hill, California	5%
NT Growth
G Class
	American Century Serv Corp SSB&T Custodian One Choice 2035 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	16%
	American Century Serv Corp SSB&T Custodian One Choice 2045 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	15%
	American Century Services LLC SSB&T Custodian One Choice 2040 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	14%
	American Century Services LLC SSB&T Custodian One Choice 2030 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	13%
	American Century Services LLC SSB&T Custodian One Choice 2025 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	12%
	American Century Services LLC SSB&T Custodian One Choice 2050 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	10%
	American Century Services LLC SSB&T Custodian One Choice 2020 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	7%
	American Century Serv Corp SSB&T Custodian One Choice In Retirement Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	6%
	American Century Services LLC SSB&T Custodian One Choice 2055 Portfolio NT Growth Omnibus Kansas City, Missouri Shares owned of record and beneficially	5%

A-6 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
NT Heritage
G Class
	American Century Serv Corp SSB&T Custodian One Choice 2035 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	15%
	American Century Serv Corp SSB&T Custodian One Choice 2045 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	15%
	American Century Services LLC SSB&T Custodian One Choice 2025 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	14%
	American Century Services LLC SSB&T Custodian One Choice 2030 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	14%
	American Century Services LLC SSB&T Custodian One Choice 2040 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	13%
	American Century Services LLC SSB&T Custodian One Choice 2050 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	10%
	American Century Services LLC SSB&T Custodian One Choice 2020 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	7%
	American Century Serv Corp SSB&T Custodian One Choice 2055 Portfolio NT Heritage Omnibus Kansas City, Missouri Shares owned of record and beneficially	5%
Select
Investor Class
	None
I Class
	National Financial Services LLC Jersey City, New Jersey	40%
	Wells Fargo Bank NA Greenwood Village, Colorado Includes 29.09% registered benefits of Penn St. Milton S. Hershey Med Cn C/O Fascore LLC	33%
	Wells Fargo Clearing Services LLC St. Louis Missouri	8%
	MLPF&S Jersey City, New Jersey	7%
	Morgan Stanely Smith Barney Jersey City, New Jersey	6%
Y Class
	Pershing LLC Jersey City, New Jersey	96%

A-7 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
A Class
	UMB Bank NA Topeka, Kansas	34%
	Pershing LLC Jersey City, New Jersey	17%
	Security Benefit Life Insurance Co Topeka, Kansas Includes 5.25% registered for the benefit of SBL Annuity Account XIV	7%
C Class
	Morgan Stanley Smith Barney Jersey City, New Jersey	15%
	LPL Financial San Diego, California	14%
	Raymond James St. Petersburg, Florida	14%
	Pershing LLC Jersey City, New Jersey	12%
	Charles Schwab & Co Inc San Francisco, California	11%
	American Enterprise Investment Svc Minneapolis, Minnesota	9%
	MLPF&S, Inc Jacksonville, Florida	8%
R Class
	Great-West Trust Co LLC FBO Recordkeeping for Various Benefit PL Omni Putnam Greenwood Village, Colorado	30%
	Reliance Trust Co Custodian FBO Mass Mutual Omnibus Atlanta, Georgia	20%
	VALIC Retirement Services FBO AIG FSB Houston, Texas	16%
	Ascensus Trust Company FBO Fargo, North Dakota Includes 7.31% registered for the benefit of ALFAB Inc 401K Plan	11%
R5 Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	100%
R6 Class
	Charles Schwab & Co Inc San Francisco, California	88%
	Equitable Life Insurance Jersey City, New Jersey	9%
Small Cap Growth
Investor Class
	Pershing LLC Jersey City, New Jersey	11%
	National Financial Services LLC Jersey City, New Jersey	5%

A-8 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
I Class
	Wells Fargo Bank NA Minneapolis, Minnesota	86%
Y Class
	Pershing LLC Jersey City, New Jersey	68%
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	32%
A Class
	Pershing LLC Jersey City, New Jersey	31%
	Charles Schwab & Co Inc San Francisco, California	8%
	National Financial Services LLC Jersey City, New Jersey	7%
	American Enterprise Investment Svc Minneapolis, Minnesota	6%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	5%
C Class
	Pershing LLC Jersey City, New Jersey	18%
	MLPF&S Inc Jacksonville, Florida	12%
	American Enterprise Investment Svc Minneapolis, Minnesota	10%
	National Financial Services LLC Jersey City, New Jersey	9%
	Raymond James St. Petersburg, Florida	8%
	Wells Fargo Clearing Service LLC St. Louis, Missouri	6%
	UBSFSI Weehawken, New Jersey	5%
R Class
	Hartford Hartford, Connecticut	17%
	Massachusetts Mutual Life Insurance Company Springfield, Massachusetts	15%
	DCGT Trustee &/or Custodian FBO PLIC Various Retirement Plans Des Moines, Iowa	9%
	Cheryl Dasilva & Bradford Kemp TTEE Beechwoods Software Inc 401K c/o Fascore LLC Greenwood Village, Colorado	6%
R5 Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	89%
	Ascensus Trust Company FBO Zepak Corporation Savings Plan 59043 Fargo, North Dakota	11%

A-9 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
R6 Class
	Charles Schwab & Co Inc San Francisco, California	75%
	Wells Fargo Bank FBO Various Retirement Plans Charlotte, North Carolina	15%
Sustainable Equity
Investor Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	34%
	Charles Schwab & Co Inc San Francisco, California	9%
	LPL Financial San Diego, California	8%
	National Financial Services LLC Jersey City, New Jersey	7%
I Class
	MLPF&S Jacksonville, Florida	32%
	National Financial Services LLC Jersey City, New Jersey	24%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	15%
	Charles Schwab & Co Inc San Francisco, California	12%
Y Class
	Edward D Jones & Co St. Louis, Missouri	88%
	Pershing LLC Jersey City, New Jersey	11%
A Class
	American Enterprise Investment Svc Minneapolis, Minnesota	21%
	MLPF&S Jacksonville, Florida	12%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	11%
	Pershing LLC Jersey City, New Jersey	9%
	Charles Schwab & Co Inc San Francisco, California	8%
	National Financial Services LLC Jersey City, New Jersey	8%
	Nationwide Trust Company Columbus, Ohio	5%
C Class
	American Enterprise Investment Svc Minneapolis, Minnesota	33%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	12%

A-10 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
	MLPF&S Inc Jacksonville, Florida	11%
	LPL Financial San Diego, California	9%
	Morgan Stanley Smith Barney Jersey City, New Jersey	7%
	National Financial Services LLC Jersey City, New Jersey	6%
	Raymond James St. Petersburg, Florida	5%
R Class
	Ascensus Trust Co Fargo, North Dakota Includes 10.48% registered for the benefit of Moody’s Jewelry, 10.76% for the benefit of Automated Business Design Inc, and 8.51% registered for the benefit of 590701	32%
	Mid Atlantic Trust Company Pittsburgh, Pennsylvania Includes 5.88% registered for the benefit of Prospect Machine Products Inc. 401K Profit Sharing Plan & Trust	13%
	Reliance Trust Co Custodian for Mass Mutual Omnibus Atlanta, Georgia	10%
	Capital Bank & Trust Co Greenwood Village, Colorado Includes 5.90% registered for the benefit of RVNA 403b Plan c/o Fascore LL C	9%
	M-7 Technologies Inc TTEE FBO M-7 Technologies 401K C/O Fascore LLC Greenwood Village, Colorado	7%
	National Financial Services LLC Jersey City, New Jersey	6%
R5 Class
	Nationwide Trust Co Columbus, Ohio	68%
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	32%
Ultra
Investor Class
	Charles Schwab & Co Inc San Francisco, California	7%
I Class
	National Financial Services LLC Jersey City, New Jersey	75%
Y Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	100%
A Class
	UMB Bank NA Topeka, Kansas	30%

A-11 #



Fund/ Class	Shareholder	Percentage of Outstanding Shares Owned Of Record
	Taynik & Co c/o State Street Bank Quincy, Massachusetts	8%
	Nationwide Trust Company Columbus, Ohio	7%
	State Street Corporation FBO ADP Access Boston, Massachusetts	6%
	MLPF&S, Inc Jacksonville, Florida	6%
C Class
	Morgan Stanley Smith Barney Jersey City, New Jersey	19%
	Raymond James Omnibus for Mutual Fund House Account St. Petersburg, Florida	13%
	Pershing LLC Jersey City, New Jersey	12%
	Wells Fargo Clearing Services LLC St. Louis, Missouri	11%
	American Enterprise Investment Svc Minneapolis, Minnesota	10%
	LPL Financial San Diego, California	9%
	MLPF&S Inc Jacksonville, Florida	6%
R Class
	Sammons Financial Network LLC West Des Moines, Iowa	21%
	Massachusetts Mutual Life Insurance Springfield, Massachusetts	20%
	Voya Institutional Trust Company Windsor, Connecticut	10%
	MLPF&S Inc Jacksonville, Florida	8%
	Hartford Life Insurance Co Hartford, Connecticut	8%
R5 Class
	American Century Investment Management, Inc. Kansas City, Missouri Shares owned of record and beneficially	100%
R6 Class
	National Financial Services LLC Jersey City, New Jersey	40%
	Charles Schwab & Co Inc San Francisco, California	13%
	PIM/Prudential Ret Plan Nominee Trustee Custodian 820 Anritsu Company Morgan Hill, California	13%
	Voya Retirement Insurance and Annuity Company Windsor, Connecticut	11%
	Great-West Trust Company LLC TTEE Employee Benefits Clients 401K Greenwood Village, Colorado	9%

A-12 #

The funds are unaware of any other shareholders, beneficial or of record, who own more than 5% of any class of a fund’s outstanding shares or who own more than 25% of the voting securities of the corporation. A shareholder owning beneficially more than 25% of the corporation’s outstanding shares may be considered a controlling person. The vote of any such person could have a more significant effect on matters presented at a shareholders’ meeting than votes of other shareholders. As of January 31, 2018, the funds’ officers and directors, as a group, owned 1.70% of Small Cap Growth’s R6 Class shares, and less than 1% of any class of the other funds’ outstanding shares.

A-13 #

Appendix B – Sales Charges and Payments to Dealers

Sales Charges

The sales charges applicable to the A and C Classes of the funds are described in the prospectuses for those classes in the section titled Investing Through a Financial Intermediary.

Shares of the A Class are subject to an initial sales charge, which declines as the amount of the purchase increases. Additional information regarding reductions and waivers of the A Class sales charge may be found in the funds’ prospectuses.

Shares of the A and C Classes are subject to a contingent deferred sales charge (CDSC) upon redemption of the shares in certain circumstances. The specific charges and when they apply are described in the relevant prospectuses. The CDSC may be waived for certain redemptions by some shareholders, as described in the prospectuses.

An investor may terminate his relationship with an intermediary at any time. If the investor does not establish a relationship with a new intermediary and transfer any accounts to that new intermediary, such accounts may be exchanged to the Investor Class of the fund, if such class is available. The investor will be the shareholder of record of such accounts. In this situation, any applicable CDSCs will be charged when the exchange is made.

The aggregate CDSCs paid to the distributor for the A Class shares in the fiscal year ended October 31, 2017 were All Cap Growth, $1,184 and Capital Value, $1,190.

The aggregate CDSCs paid to the distributor for the C Class shares in the fiscal year ended October 31, 2017 were All Cap Growth, $ 111; Growth, $809; Heritage, $4,983; Select, $709; Small Cap Growth, $140; Sustainable Equity, $1,035 and Ultra, $412.

Payments to Dealers

The funds’ distributor expects to pay dealer commissions to the financial intermediaries who sell A and/or C Class shares of the funds at the time of such sales. Payments for A Class shares will be as follows:



Purchase Amount	Dealer Commission as a % of Offering Price
< $50,000	5.00%
$50,000 - $99,999	4.00%
$100,000 - $249,999	3.25%
$250,000 - $499,999	2.00%
$500,000 - $999,999	1.75%
$1,000,000 - $3,999,999	1.00%
$4,000,000 - $9,999,999	0.50%
> $10,000,000	0.25%

No dealer commission will be paid on purchases by employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. Payments will equal 1.00% of the purchase price of the C Class shares sold by the intermediary. The distributor will retain the 12b-1 fee paid by the C Class of funds for the first 12 months after the shares are purchased. This fee is intended in part to permit the distributor to recoup a portion of on-going sales commissions to dealers plus financing costs, if any. Beginning with the first day of the 13th month, the distributor will make the C Class distribution and individual shareholder services fee payments described above to the financial intermediaries involved on a quarterly basis. In addition, C Class purchases and A Class purchases greater than $1,000,000 are subject to a CDSC as described in the prospectuses.

From time to time, the distributor may make additional payments to dealers, including but not limited to payment assistance for conferences and seminars, provision of sales or training programs for dealer employees and/or the public (including, in some cases, payment for travel expenses for registered representatives and other dealer employees who participate), advertising and sales campaigns about a fund or funds, and assistance in financing dealer-sponsored events. Other payments may be offered as well, and all such payments will be consistent with applicable law, including the then-current rules of the Financial Industry Regulatory Authority (FINRA). Such payments will not change the price paid by investors for shares of the funds.

B-1 #

Appendix C – Buying and Selling Fund Shares

Information about buying, selling, exchanging and, if applicable, converting fund shares is contained in the funds’ prospectuses. The prospectuses are available to investors without charge and may be obtained by calling us.

Employer-Sponsored Retirement Plans

Certain group employer-sponsored retirement plans that hold a single account for all plan participants with the fund, or that are part of a retirement plan or platform offered by banks, broker-dealers, financial advisors or insurance companies, or serviced by retirement recordkeepers are eligible to purchase Investor, A, C, R, R5 and R6 Class shares. Employer-sponsored retirement plans are not eligible to purchase I or Y Class shares. However, employer-sponsored retirement plans that were invested in the I Class prior to April 10, 2017 may make additional purchases. A and C Class purchases are available at net asset value with no dealer commission paid to the financial professional, and do not incur a CDSC. A, C and R Class shares purchased in employer-sponsored retirement plans are subject to applicable distribution and service (12b-1) fees, which the financial intermediary begins receiving immediately at the time of purchase. American Century does not impose minimum initial investment amount, plan size or participant number requirements by class for employer-sponsored retirement plans; however, financial intermediaries or plan recordkeepers may require plans to meet different requirements.

Examples of employer-sponsored retirement plans include the following:


•	401(a) plans


•	pension plans


•	profit sharing plans


•	401(k) plans (including plans with a Roth 401(k) feature, SIMPLE 401(k) plans and Solo 401(k) plans)


•	money purchase plans


•	target benefit plans


•	Taft-Hartley multi-employer pension plans


•	SERP and “Top Hat” plans


•	ERISA trusts


•	employee benefit plans and trusts


•	employer-sponsored health plans


•	457 plans


•	KEOGH or HR(10) plans


•	employer-sponsored 403(b) plans (including plans with a Roth 403(b) feature)


•	nonqualified deferred compensation plans


•	nonqualified excess benefit plans


•	nonqualified retirement plans

Traditional and Roth IRAs are not considered employer-sponsored retirement plans, and SIMPLE IRAs, SEP IRAs and SARSEPs are collectively referred to as Business IRAs. Business IRAs that (i) held shares of an A Class fund prior to March 1, 2009 that received sales charge waivers or (ii) held shares of an Advisor Class fund that was renamed A Class on March 1, 2010, may permit additional purchases by new and existing participants in A Class shares without an initial sales charge.

R Class IRA Accounts established prior to August 1, 2006 may make additional purchases.

Waiver of Minimum Initial Investment Amounts — I Class

A financial intermediary, upon receiving prior approval from American Century Investments, may waive applicable minimum initial investment amounts per shareholder for I Class shares in the following situations:


•	Broker-dealers , banks, trust companies, registered investment advisors and other financial intermediaries may make I Class shares available with no initial investment minimum in fee based advisory programs or accounts where such program or account is traded omnibus by the financial intermediary;


•	Qualified Tuition Programs under Section 529 that have entered into an agreement with the distributor; and


•	Certain other situations deemed appropriate by American Century Investments.

C-1 #

Appendix D – Explanation of Fixed-Income Securities Ratings

As described in the prospectuses, the funds invest in fixed-income securities. Those investments, however, are subject to certain credit quality restrictions, as noted in the prospectuses and in this statement of additional information. The following is a summary of the rating categories referenced in the prospectus disclosure.



Ratings of Corporate Debt Securities
Standard & Poor’s Long-Term Issue Credit Ratings*
Category	Definition
AAA	An obligation rated ‘AAA’ has the highest rating assigned by Standard & Poor’s. The obligor’s capacity to meet its financial commitment on the obligation is extremely strong.
AA	An obligation rated ‘AA’ differs from the highest-rated obligations only to a small degree. The obligor’s capacity to meet its financial commitment on the obligation is very strong.
A	An obligation rated ‘A’ is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher-rated categories. However, the obligor’s capacity to meet its financial commitment on the obligation is still strong.
BBB	An obligation rated ‘BBB’ exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation.
BB;B; CCC; CC; and C	Obligations rated ‘BB’, ‘B’, ‘CCC’, ‘CC’, and ‘C’ are regarded as having significant speculative characteristics. ‘BB’ indicates the least degree of speculation and ‘C’ the highest. While such obligations will likely have some quality and protective characteristics, these may be outweighed by large uncertainties or major exposures to adverse conditions.
BB	An obligation rated ‘BB’ is less vulnerable to nonpayment than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial, or economic conditions which could lead to the obligor’s inadequate capacity to meet its financial commitment on the obligation.
B	An obligation rated ‘B’ is more vulnerable to nonpayment than obligations rated ‘BB’, but the obligor currently has the capacity to meet its financial commitment on the obligation. Adverse business, financial, or economic conditions will likely impair the obligor’s capacity or willingness to meet its financial commitment on the obligation.
CCC	An obligation rated ‘CCC’ is currently vulnerable to nonpayment, and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitment on the obligation. In the event of adverse business, financial, or economic conditions, the obligor is not likely to have the capacity to meet its financial commitment on the obligation.
CC	An obligation rated ‘CC’ is currently highly vulnerable to nonpayment. The ‘CC’ rating is used when a default has not yet occurred, but Standard & Poor’s expects default to be a virtual certainty, regardless of the anticipated time to default.
C	An obligation rated ‘C’ is currently highly vulnerable to nonpayment,and the obligation is expected to have lower relative seniority or lower ultimate recovery compared to obligations that are rated higher.
D	An obligation rated ‘D’ is in default or in breach of an imputed promise. For non-hybrid capital instruments, the ‘D’ rating category is used when payments on an obligation are not made on the date due, unless Standard & Poor’s believes that such payments will be made within five business days in the absence of a stated grace period or within the earlier of the stated grace period or 30 calendar days. The ‘D’ rating also will be used upon the filing of a bankruptcy petition or the taking of similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. An obligation’s rating is lowered to ‘D’ if it is subject to a distressed exchange offer.
NR	This indicates that no rating has been requested, or that there is insufficient information on which to base a rating, or that Standard & Poor’s does not rate a particular obligation as a matter of policy.

*The ratings from “AA” to “CCC” may be modified by the addition of a plus (+) or minus (-) sign to show relative standing within the major rating categories.

D-1 #



Moody’s Investors Service, Inc. Global Long-Term Rating Scale
Category	Definition
Aaa	Obligations rated Aaa are judged to be of the highest quality, subject to the lowest level of credit risk.
Aa	Obligations rated Aa are judged to be of high quality and are subject to very low credit risk.
A	Obligations rated A are judged to be upper-medium grade and are subject to low credit risk.
Baa	Obligations rated Baa are judged to be medium-grade and subject to moderate credit risk and as such may possess certain speculative characteristics.
Ba	Obligations rated Ba are judged to be speculative and are subject to substantial credit risk.
B	Obligations rated B are considered speculative and are subject to high credit risk.
Caa	Obligations rated Caa are judged to be speculative of poor standing and are subject to very high credit risk.
Ca	Obligations rated Ca are highly speculative and are likely in, or very near, default, with some prospect of recovery of principal and interest.
C	Obligations rated C are the lowest rated and are typically in default, with little prospect for recovery of principal or interest.

Note: Moody’s appends numerical modifiers 1, 2, and 3 to each generic rating classification from Aa through Caa. The

modifier 1 indicates that the obligation ranks in the higher end of its generic rating category; the modifier 2 indicates a

mid-range ranking; and the modifier 3 indicates a ranking in the lower end of that generic rating category. Additionally, a

“(hyb)” indicator is appended to all ratings of hybrid securities issued by banks, insurers, finance companies, and securities

firms.



Fitch Investors Service, Inc. Long-Term Ratings
Category	Definition
AAA	Highest credit quality. ‘AAA’ ratings denote the lowest expectation of credit risk. They are assigned only in cases of exceptionally strong capacity for payment of financial commitments. This capacity is highly unlikely to be adversely affected by foreseeable events.
AA	High credit quality. ‘A’ ratings denote expectations of low credit risk. The capacity for payment of financial commitments is considered strong. This capacity may, nevertheless, be more vulnerable to adverse business or economic conditions than is the case for higher ratings.
A	High credit quality. ‘A’ ratings denote expectations of low credit risk. The capacity for payment of financial commitments is considered strong. This capacity may, nevertheless, be more vulnerable to adverse business or economic conditions than is the case for higher ratings.
BBB	Good credit quality. ‘BBB’ ratings indicate that expectations of credit risk are currently low. The capacity for payment of financial commitments is considered adequate but adverse business or economic conditions are more likely to impair this capacity.
BB	Speculative. ‘BB’ ratings indicate an elevated vulnerability to credit risk, particularly in the event of adverse changes in business or economic conditions over time; however, business or financial alternatives may be available to allow financial commitments to be met.
B	Highly speculative. ‘B’ ratings indicate that material credit risk is present.
CCC	Substantial credit risk. ‘CCC’ ratings indicate that substantial credit risk is present.
CC	Very high levels of credit risk. ‘CC’ ratings indicate very high levels of credit risk.
C	Exceptionally high levels of credit risk. ‘C’ indicates exceptionally high levels of credit risk.

Defaulted obligations typically are not assigned ‘RD’ or ‘D’ ratings, but are instead rated in the ‘B’ to ‘C’ rating categories, depending upon their recovery prospects and other relevant characteristics. This approach better aligns obligations that have comparable overall expected loss but varying vulnerability to default and loss.

Notes: The modifiers “+” or “-“ may be appended to a rating to denote relative status within major rating categories. Such suffixes are not added to the ‘AAA’ obligation rating category, or to corporate finance obligation ratings in the categories below ‘CCC’.

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Standard & Poor’s Corporate Short-Term Note Ratings
Category	Definition
A-1	A short-term obligation rated ‘A-1’ is rated in the highest category by Standard & Poor’s. The obligor’s capacity to meet its financial commitment on the obligation is strong. Within this category, certain obligations are designated with a plus sign (+). This indicates that the obligor’s capacity to meet its financial commitment on these obligations is extremely strong.
A-2	A short-term obligation rated ‘A-2’ is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher rating categories. However, the obligor’s capacity to meet its financial commitment on the obligation is satisfactory.
A-3	A short-term obligation rated ‘A-3’ exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation.
B	A short-term obligation rated ‘B’ is regarded as vulnerable and has significant speculative characteristics. The obligor currently has the capacity to meet its financial commitments; however, it faces major ongoing uncertainties which could lead to the obligor’s inadequate capacity to meet its financial commitments.
C	A short-term obligation rated ‘C’ is currently vulnerable to nonpayment and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitment on the obligation.
D	A short-term obligation rated ‘D’ is in default or in breach of an imputed promise. For non-hybrid capital instruments, the ‘D’ rating category is used when payments on an obligation are not made on the date due, unless Standard & Poor’s believes that such payments will be made within any stated grace period. However, any stated grace period longer than five business days will be treated as five business days. The ‘D’ rating also will be used upon the filing of a bankruptcy petition or the taking of a similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. An obligation’s rating is lowered to ‘D’ if it is subject to a distressed exchange offer.



Moody’s Global Short-Term Rating Scale
Category	Definition
P-1	Issuers (or supporting institutions) rated Prime-1 have a superior ability to repay short-term debt obligations.
P-2	Issuers (or supporting institutions) rated Prime-2 have a strong ability to repay short-term debt obligations.
P-3	Issuers (or supporting institutions) rated Prime-3 have an acceptable ability to repay short-term obligations.
NP	Issuers (or supporting institutions) rated Not Prime do not fall within any of the Prime rating categories.



Fitch Investors Service, Inc. Short-Term Ratings
Category	Definition
F1	Highest short-term credit quality. Indicates the strongest intrinsic capacity for timely payment of financial commitments; may have an added “+” to denote any exceptionally strong credit feature.
F2	Good short-term credit quality. Good intrinsic capacity for timely payment of financial commitments.
F3	Fair short-term credit quality. The intrinsic capacity for timely payment of financial commitments is adequate.
B	Speculative short-term credit quality. Minimal capacity for timely payment of financial commitments, plus heightened vulnerability to near term adverse changes in financial and economic conditions.
C	High short-term default risk. Default is a real possibility.
RD	Restricted default. Indicates an entity that has defaulted on one or more of its financial commitments, although it continues to meet other financial obligations. Typically applicable to entity ratings only.
D	Default Indicates a broad-based default event for an entity, or the default of a short-term obligation.



Standard & Poor’s Municipal Short-Term Note Ratings
Category	Definition
SP-1	Strong capacity to pay principal and interest. An issue determined to possess a very strong capacity to pay debt service is given a plus (+) designation.
SP-2	Satisfactory capacity to pay principal and interest, with some vulnerability to adverse financial and economic changes over the term of the notes.
SP-3	Speculative capacity to pay principal and interest.

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Moody’s US Municipal Short-Term Debt Ratings
Category	Definition
MIG 1	This designation denotes superior credit quality. Excellent protection is afforded by established cash flows, highly reliable liquidity support, or demonstrated broad-based access to the market for refinancing.
MIG 2	This designation denotes strong credit quality. Margins of protection are ample, although not as large as in the preceding group.
MIG 3	This designation denotes acceptable credit quality. Liquidity and cash-flow protection may be narrow, and market access for refinancing is likely to be less well-established.
SG	This designation denotes speculative-grade credit quality. Debt instruments in this category may lack sufficient margins of protection.



Moody’s Demand Obligation Ratings
Category	Definition
VMIG 1	This designation denotes superior credit quality. Excellent protection is afforded by the superior short-term credit strength of the liquidity provider and structural and legal protections that ensure the timely payment of purchase price upon demand.
VMIG 2	This designation denotes strong credit quality. Good protection is afforded by the strong short-term credit strength of the liquidity provider and structural and legal protections that ensure the timely payment of purchase price upon demand.
VMIG 3	This designation denotes acceptable credit quality. Adequate protection is afforded by the satisfactory short-term credit strength of the liquidity provider and structural and legal protections that ensure the timely payment of purchase price upon demand.
SG	This designation denotes speculative-grade credit quality. Demand features rated in this category may be supported by a liquidity provider that does not have an investment grade short-term rating or may lack the structural and/or legal protections necessary to ensure the timely payment of purchase price upon demand.

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Appendix E – Proxy Voting Policies

American Century Investment Management, Inc. (the “Advisor”) is the investment manager for a variety of advisory clients, including the American Century family of mutual funds. In such capacity, the Advisor has been delegated the authority to vote proxies with respect to investments held in the accounts it manages. The following is a statement of the proxy voting policies that have been adopted by the Advisor. In the exercise of proxy voting authority which has been delegated to it by particular clients, the Advisor will apply the following policies in accordance with, and subject to, any specific policies that have been adopted by the client and communicated to and accepted by the Advisor in writing.


A.	General Principles

In providing the service of voting client proxies, the Advisor is guided by general fiduciary principles, must act prudently, solely in the interest of its clients, and must not subordinate client interests to unrelated objectives. Except as otherwise indicated in these Policies, the Advisor will vote all proxies with respect to investments held in the client accounts it manages. The Advisor will attempt to consider all factors of its vote that could affect the value of the investment. Although in most instances the Advisor will vote proxies consistently across all client accounts, the votes will be based on the best interests of each client. As a result, accounts managed by the Advisor may at times vote differently on the same proposals. Examples of when an account’s vote might differ from other accounts managed by the Advisor include, but are not limited to, proxy contests and proposed mergers. In short, the Advisor will vote proxies in the manner that it believes will do the most to maximize shareholder value.


B.	Specific Proxy Matters

1. Routine Matters

a. Election of Directors

(1)

Generally. The Advisor will generally support the election of directors that result in a board made up of a majority of independent directors. In general, the Advisor will vote in favor of management's director nominees if they are running unopposed. The Advisor believes that management is in the best possible position to evaluate the qualifications of directors and the needs and dynamics of a particular board. The Advisor of course maintains the ability to vote against any candidate whom it feels is not qualified or if there are specific concerns about the individual, such as allegations of criminal wrongdoing or breach of fiduciary responsibilities. Additional information the Advisor may consider concerning director nominees include, but is not limited to, whether (1) there is an adequate explanation for repeated absences at board meetings, (2) the nominee receives non-board fee compensation, or (3) there is a family relationship between the nominee and the company’s chief executive officer or controlling shareholder. When management's nominees are opposed in a proxy contest, the Advisor will evaluate which nominees' publicly-announced management policies and goals are most likely to maximize shareholder value, as well as the past performance of the incumbents.


(2)	Committee Service. The Advisor will withhold votes for non-independent directors who serve on the audit, compensation, and/or nominating committees of the board.


(3)	Classification of Boards. The Advisor will support proposals that seek to declassify boards. Conversely, the Advisor will oppose efforts to adopt classified board structures.


(4)	Majority Independent Board. The Advisor will support proposals calling for a majority of independent directors on a board. The Advisor believes that a majority of independent directors can help to facilitate objective decision making and enhances accountability to shareholders.

(5)

Majority Vote Standard for Director Elections. The Advisor will vote in favor of proposals calling for directors to be elected by an affirmative majority of the votes cast in a board election, provided that the proposal allows for a plurality voting standard in the case of contested elections. The Advisor may consider voting against such shareholder proposals where a company’s board has adopted an alternative measure, such as a director resignation policy, that provides a meaningful alternative to the majority voting standard and appropriately addresses situations where an incumbent director fails to receive the support of the majority of the votes cast in an uncontested election.


(6)	Withholding Campaigns. The Advisor will support proposals calling for shareholders to withhold votes for directors where such actions will advance the principles set forth in paragraphs (1) through (5) above.

b. Ratification of Selection of Auditors

The Advisor will generally rely on the judgment of the issuer’s audit committee in selecting the independent auditors who will provide the best service to the company. The Advisor believes that independence of the auditors is paramount and will vote against auditors whose independence appears to be impaired. The Advisor will vote against proposed auditors in those circumstances where (1) an auditor has a financial interest in or association with the company, and is therefore not independent; (2) non-audit fees comprise more than 50% of the total fees paid by the company to the audit firm; or (3)

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there is reason to believe that the independent auditor has previously rendered an opinion to the issuer that is either inaccurate or not indicative of the company's financial position.

2. Compensation Matters

a. Executive Compensation

(1)

Advisory Vote on Compensation. The Advisor believes there are more effective ways to convey concerns about compensation than through an advisory vote on compensation (such as voting against specific excessive incentive plans or withholding votes from compensation committee members). The Advisor will consider and vote on a case-by-case basis on say-on-pay proposals and will generally support management proposals unless specific concerns exist, including if the Advisor concludes that executive compensation is (i) misaligned with shareholder interests, (ii) unreasonable in amount, or (iii) not in the aggregate meaningfully tied to the company’s performance.


(2)	Frequency of Advisory Votes on Compensation. The Advisor generally supports the triennial option for the frequency of say-on-pay proposals, but will consider management recommendations for an alternative approach.

b. Equity Based Compensation Plans

The Advisor believes that equity-based incentive plans are economically significant issues upon which shareholders are entitled to vote. The Advisor recognizes that equity-based compensation plans can be useful in attracting and maintaining desirable employees. The cost associated with such plans must be measured if plans are to be used appropriately to maximize shareholder value. The Advisor will conduct a case-by-case analysis of each stock option, stock bonus or similar plan or amendment, and generally approve management's recommendations with respect to adoption of or amendments to a company's equity-based compensation plans, provided that the total number of shares reserved under all of a company's plans is reasonable and not excessively dilutive.

The Advisor will review equity-based compensation plans or amendments thereto on a case-by-case basis. Factors that will be considered in the determination include the company's overall capitalization, the performance of the company relative to its peers, and the maturity of the company and its industry; for example, technology companies often use options broadly throughout its employee base which may justify somewhat greater dilution.

Amendments which are proposed in order to bring a company's plan within applicable legal requirements will be reviewed by the Advisor's legal counsel; amendments to executive bonus plans to comply with IRS Section 162(m) disclosure requirements, for example, are generally approved.

The Advisor will generally vote against the adoption of plans or plan amendments that:


•	Provide for immediate vesting of all stock options in the event of a change of control of the company without reasonable safeguards against abuse (see "Anti-Takeover Proposals" below);


•	Reset outstanding stock options at a lower strike price unless accompanied by a corresponding and proportionate reduction in the number of shares designated. The Advisor will generally oppose adoption of stock option plans that explicitly or historically permit repricing of stock options, regardless of the number of shares reserved for issuance, since their effect is impossible to evaluate;


•	Establish restriction periods shorter than three years for restricted stock grants;


•	Do not reasonably associate awards to performance of the company; or


•	Are excessively dilutive to the company.

3. Anti-Takeover Proposals

In general, the Advisor will vote against any proposal, whether made by management or shareholders, which the Advisor believes would materially discourage a potential acquisition or takeover. In most cases an acquisition or takeover of a particular company will increase share value. The adoption of anti-takeover measures may prevent or frustrate a bid from being made, may prevent consummation of the acquisition, and may have a negative effect on share price when no acquisition proposal is pending. The items below discuss specific anti-takeover proposals.

a. Cumulative Voting

The Advisor will vote in favor of any proposal to adopt cumulative voting and will vote against any proposal to eliminate cumulative voting that is already in place, except in cases where a company has a staggered board. Cumulative voting gives minority shareholders a stronger voice in the company and a greater chance for representation on the board. The Advisor believes that the elimination of cumulative voting constitutes an anti-takeover measure.

b. Staggered Board

If a company has a "staggered board," its directors are elected for terms of more than one year and only a segment of the board stands for election in any year. Therefore, a potential acquiror cannot replace the entire board in one year even if it controls a majority of the votes. Although staggered boards may provide some degree of continuity and stability of

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leadership and direction to the board of directors, the Advisor believes that staggered boards are primarily an anti-takeover device and will vote against establishing them and for eliminating them. However, the Advisor does not necessarily vote against the re-election of directors serving on staggered boards.

c. "Blank Check" Preferred Stock

Blank check preferred stock gives the board of directors the ability to issue preferred stock, without further shareholder approval, with such rights, preferences, privileges and restrictions as may be set by the board. In response to a hostile takeover attempt, the board could issue such stock to a friendly party or "white knight" or could establish conversion or other rights in the preferred stock which would dilute the common stock and make an acquisition impossible or less attractive. The argument in favor of blank check preferred stock is that it gives the board flexibility in pursuing financing, acquisitions or other proper corporate purposes without incurring the time or expense of a shareholder vote. Generally, the Advisor will vote against blank check preferred stock. However, the Advisor may vote in favor of blank check preferred if the proxy statement discloses that such stock is limited to use for a specific, proper corporate objective as a financing instrument.

d. Elimination of Preemptive Rights

When a company grants preemptive rights, existing shareholders are given an opportunity to maintain their proportional ownership when new shares are issued. A proposal to eliminate preemptive rights is a request from management to revoke that right.

While preemptive rights will protect the shareholder from having its equity diluted, it may also decrease a company's ability to raise capital through stock offerings or use stock for acquisitions or other proper corporate purposes. Preemptive rights may therefore result in a lower market value for the company's stock. In the long term, shareholders could be adversely affected by preemptive rights. The Advisor generally votes against proposals to grant preemptive rights, and for proposals to eliminate preemptive rights.

e. Non-targeted Share Repurchase

A non-targeted share repurchase is generally used by company management to prevent the value of stock held by existing shareholders from deteriorating. A non-targeted share repurchase may reflect management's belief in the favorable business prospects of the company. The Advisor finds no disadvantageous effects of a non-targeted share repurchase and will generally vote for the approval of a non-targeted share repurchase subject to analysis of the company’s financial condition.

f. Increase in Authorized Common Stock

The issuance of new common stock can also be viewed as an anti-takeover measure, although its effect on shareholder value would appear to be less significant than the adoption of blank check preferred. The Advisor will evaluate the amount of the proposed increase and the purpose or purposes for which the increase is sought. If the increase is not excessive and is sought for proper corporate purposes, the increase will be approved. Proper corporate purposes might include, for example, the creation of additional stock to accommodate a stock split or stock dividend, additional stock required for a proposed acquisition, or additional stock required to be reserved upon exercise of employee stock option plans or employee stock purchase plans. Generally, the Advisor will vote in favor of an increase in authorized common stock of up to 100%; increases in excess of 100% are evaluated on a case-by-case basis, and will be voted affirmatively if management has provided sound justification for the increase.

g. "Supermajority" Voting Provisions or Super Voting Share Classes

A "supermajority" voting provision is a provision placed in a company's charter documents which would require a "supermajority" (ranging from 66 to 90%) of shareholders and shareholder votes to approve any type of acquisition of the company. A super voting share class grants one class of shareholders a greater per-share vote than those of shareholders of other voting classes. The Advisor believes that these are standard anti-takeover measures and will generally vote against them. The supermajority provision makes an acquisition more time-consuming and expensive for the acquiror. A super voting share class favors one group of shareholders disproportionately to economic interest. Both are often proposed in conjunction with other anti-takeover measures.

h. "Fair Price" Amendments

This is another type of charter amendment that would require an offeror to pay a "fair" and uniform price to all shareholders in an acquisition. In general, fair price amendments are designed to protect shareholders from coercive, two-tier tender offers in which some shareholders may be merged out on disadvantageous terms. Fair price amendments also have an anti-takeover impact, although their adoption is generally believed to have less of a negative effect on stock price than other anti-takeover measures. The Advisor will carefully examine all fair price proposals. In general, the Advisor will vote against fair price proposals unless the Advisor concludes that it is likely that the share price will not be negatively affected and the proposal will not have the effect of discouraging acquisition proposals.

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i. Limiting the Right to Call Special Shareholder Meetings.

The corporation statutes of many states allow minority shareholders at a certain threshold level of ownership (frequently 10%) to call a special meeting of shareholders. This right can be eliminated (or the threshold increased) by amendment to the company's charter documents. The Advisor believes that the right to call a special shareholder meeting is significant for minority shareholders; the elimination of such right will be viewed as an anti-takeover measure and the Advisor will generally vote against proposals attempting to eliminate this right and for proposals attempting to restore it.

j. Poison Pills or Shareholder Rights Plans

Many companies have now adopted some version of a poison pill plan (also known as a shareholder rights plan). Poison pill plans generally provide for the issuance of additional equity securities or rights to purchase equity securities upon the occurrence of certain hostile events, such as the acquisition of a large block of stock.

The basic argument against poison pills is that they depress share value, discourage offers for the company and serve to "entrench" management. The basic argument in favor of poison pills is that they give management more time and leverage to deal with a takeover bid and, as a result, shareholders may receive a better price. The Advisor believes that the potential benefits of a poison pill plan are outweighed by the potential detriments. The Advisor will generally vote against all forms of poison pills.

The Advisor will, however, consider on a case-by-case basis poison pills that are very limited in time and preclusive effect. The Advisor will generally vote in favor of such a poison pill if it is linked to a business strategy that will - in our view - likely result in greater value for shareholders, if the term is less than three years, and if shareholder approval is required to reinstate the expired plan or adopt a new plan at the end of this term.

k. Golden Parachutes

Golden parachute arrangements provide substantial compensation to executives who are terminated as a result of a takeover or change in control of their company. The existence of such plans in reasonable amounts probably has only a slight anti-takeover effect. In voting, the Advisor will evaluate the specifics of the plan presented.

l. Reincorporation

Reincorporation in a new state is often proposed as one part of a package of anti-takeover measures. Several states (such as Pennsylvania, Ohio and Indiana) now provide some type of legislation that greatly discourages takeovers. Management believes that Delaware in particular is beneficial as a corporate domicile because of the well-developed body of statutes and case law dealing with corporate acquisitions.

The Advisor will examine reincorporation proposals on a case-by-case basis. Generally, if the Advisor believes that the reincorporation will result in greater protection from takeovers, the reincorporation proposal will be opposed. The Advisor will also oppose reincorporation proposals involving jurisdictions that specify that directors can recognize non-shareholder interests over those of shareholders. When reincorporation is proposed for a legitimate business purpose and without the negative effects identified above, the Advisor will generally vote affirmatively.

m. Confidential Voting

Companies that have not previously adopted a "confidential voting" policy allow management to view the results of shareholder votes. This gives management the opportunity to contact those shareholders voting against management in an effort to change their votes.

Proponents of secret ballots argue that confidential voting enables shareholders to vote on all issues on the basis of merit without pressure from management to influence their decision. Opponents argue that confidential voting is more expensive and unnecessary; also, holding shares in a nominee name maintains shareholders' confidentiality. The Advisor believes that the only way to insure anonymity of votes is through confidential voting, and that the benefits of confidential voting outweigh the incremental additional cost of administering a confidential voting system. Therefore, the Advisor will generally vote in favor of any proposal to adopt confidential voting.

n. Opting In or Out of State Takeover Laws

State takeover laws typically are designed to make it more difficult to acquire a corporation organized in that state. The Advisor believes that the decision of whether or not to accept or reject offers of merger or acquisition should be made by the shareholders, without unreasonably restrictive state laws that may impose ownership thresholds or waiting periods on potential acquirors. Therefore, the Advisor will generally vote in favor of opting out of restrictive state takeover laws.

4. Transaction Related Proposals

The Advisor will review transaction related proposals, such as mergers, acquisitions, and corporate reorganizations, on a case-by-case basis, taking into consideration the impact of the transaction on each client account. In some instances, such as the approval of a proposed merger, a transaction may have a differential impact on client accounts depending on the securities held in each

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account. For example, whether a merger is in the best interest of a client account may be influenced by whether an account holds, and in what proportion, the stock of both the acquirer and the acquiror. In these circumstances, the Advisor may determine that it is in the best interests of the accounts to vote the accounts’ shares differently on proposals related to the same transaction.

5. Other Matters

a. Shareholder Proposals Involving Social, Moral or Ethical Matters

The Advisor will generally vote in accordance with management’s recommendation on issues that primarily involve social, moral or ethical matters, such as the MacBride Principles pertaining to operations in Northern Ireland. While the resolution of such issues may have an effect on shareholder value, the precise economic effect of such proposals, and individual shareholder’s preferences regarding such issues, is often unclear. Where this is the case, the Advisor believes it is generally impossible to know how to vote in a manner that would accurately reflect the views of the Advisor’s clients, and therefore will review management’s assessment of the economic effect of such proposals and rely upon it if the Advisor believes its assessment is not unreasonable.

Shareholders may also introduce social, moral or ethical proposals which are the subject of existing law or regulation. Examples of such proposals would include a proposal to require disclosure of a company's contributions to political action committees or a proposal to require a company to adopt a non-smoking workplace policy. The Advisor believes that such proposals are better addressed outside the corporate arena, and will generally vote with management’s recommendation; in addition, the Advisor will generally vote against any proposal which would require a company to adopt practices or procedures which go beyond the requirements of existing, directly applicable law.

b. Anti-Greenmail Proposals

"Anti-greenmail" proposals generally limit the right of a corporation, without a shareholder vote, to pay a premium or buy out a 5% or greater shareholder. Management often argues that they should not be restricted from negotiating a deal to buy out a significant shareholder at a premium if they believe it is in the best interest of the company. Institutional shareholders generally believe that all shareholders should be able to vote on such a significant use of corporate assets. The Advisor believes that any repurchase by the company at a premium price of a large block of stock should be subject to a shareholder vote. Accordingly, it will generally vote in favor of anti-greenmail proposals.

c. Indemnification

The Advisor will generally vote in favor of a corporation's proposal to indemnify its officers and directors in accordance with applicable state law. Indemnification arrangements are often necessary in order to attract and retain qualified directors. The adoption of such proposals appears to have little effect on share value.

d. Non-Stock Incentive Plans

Management may propose a variety of cash-based incentive or bonus plans to stimulate employee performance. In general, the cash or other corporate assets required for most incentive plans is not material, and the Advisor will vote in favor of such proposals, particularly when the proposal is recommended in order to comply with IRC Section 162(m) regarding salary disclosure requirements. Case-by-case determinations will be made of the appropriateness of the amount of shareholder value transferred by proposed plans.

e. Director Tenure

These proposals ask that age and term restrictions be placed on the board of directors. The Advisor believes that these types of blanket restrictions are not necessarily in the best interests of shareholders and therefore will vote against such proposals, unless they have been recommended by management.

f. Directors’ Stock Options Plans

The Advisor believes that stock options are an appropriate form of compensation for directors, and the Advisor will generally vote for director stock option plans which are reasonable and do not result in excessive shareholder dilution. Analysis of such proposals will be made on a case-by-case basis, and will take into account total board compensation and the company’s total exposure to stock option plan dilution.

g. Director Share Ownership

The Advisor will generally vote against shareholder proposals which would require directors to hold a minimum number of the company's shares to serve on the Board of Directors, in the belief that such ownership should be at the discretion of Board members.

h. Non-U.S. Proxies

The Advisor will generally evaluate non-U.S. proxies in the context of the voting policies expressed herein but will also, where feasible, take into consideration differing laws, regulations, and practices in the relevant foreign market in

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determining if and how to vote. There may also be circumstances when practicalities and costs involved with non-U.S. investing make it disadvantageous to vote shares. For instance, the Advisor generally does not vote proxies in circumstances where share blocking restrictions apply, when meeting attendance is required in person, or when current share ownership disclosure is required.


C.	Use of Proxy Advisory Services

The Advisor takes into account information from many different sources, including independent proxy advisory services. However, the decision on how to vote proxies will be made by the Advisor in accordance with these policies and will not be delegated to a proxy advisory service.


D.	Monitoring Potential Conflicts of Interest

Corporate management has a strong interest in the outcome of proposals submitted to shareholders. As a consequence, management often seeks to influence large shareholders to vote with their recommendations on particularly controversial matters. In the vast majority of cases, these communications with large shareholders amount to little more than advocacy for management’s positions and give the Advisor’s staff the opportunity to ask additional questions about the matter being presented. Companies with which the Advisor has direct business relationships could theoretically use these relationships to attempt to unduly influence the manner in which the Advisor votes on matters for its clients. To ensure that such a conflict of interest does not affect proxy votes cast for the Advisor’s clients, our proxy voting personnel regularly catalog companies with whom the Advisor has significant business relationships; all discretionary (including case-by-case) voting for these companies will be voted by the client or an appropriate fiduciary responsible for the client (e.g., a committee of the independent directors of a fund or the trustee of a retirement plan).

In addition, to avoid any potential conflict of interest that may arise when one American Century mutual fund owns shares of another American Century mutual fund, the Advisor will “echo vote” such shares, if possible. Echo voting means the Advisor will vote the shares in the same proportion as the vote of all of the other holders of the fund’s shares. So, for example, if shareholders of a fund cast 80% of their votes in favor of a proposal and 20% against the proposal, any American Century fund that owns shares of such fund will cast 80% of its shares in favor of the proposal and 20% against. When this is not possible (as in the case of the “NT” funds, where the One Choice Target Date funds are the sole shareholder), the shares of the underlying fund (e.g. the “NT” fund) will be voted in the same proportion as the vote of the shareholders of the corresponding American Century policy portfolio for proposals common to both funds. For example, NT Growth Fund shares will be echo voted in accordance with the votes of the Growth Fund shareholders. In the case where the policy portfolio does not have a common proposal, shares will be voted in consultation with a committee of the independent directors.

************************************************************

The voting policies expressed above are of course subject to modification in certain circumstances and will be reexamined from time to time. With respect to matters that do not fit in the categories stated above, the Advisor will exercise its best judgment as a fiduciary to vote in the manner which will most enhance shareholder value.

Case-by-case determinations will be made by the Advisor’s staff, which is overseen by the General Counsel of the Advisor, in consultation with equity managers. Electronic records will be kept of all votes made.

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American Century Investments americancentury.com
Retail Investors P.O. Box 419200 Kansas City, Missouri 64141-6200 1-800-345-2021 or 816-531-5575	Financial Professionals P.O. Box 419385 Kansas City, Missouri 64141-6385 1-800-345-6488

Investment Company Act File No. 811-00816

CL-SAI-91794 1803

AMERICAN CENTURY MUTUAL FUNDS, INC.

PART C OTHER INFORMATION

Item 28. Exhibits

(a) (1) Articles of Incorporation of Twentieth Century Investors, Inc., dated June 26, 1990 (filed electronically as Exhibit b1a to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(2) Articles of Amendment of Twentieth Century Investors, Inc., dated November 19, 1990 (filed electronically as Exhibit b1b to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(3) Articles of Merger of Twentieth Century Investors, Inc., a Maryland corporation and Twentieth Century Investors, Inc., a Delaware corporation, dated February 22, 1991 (filed electronically as Exhibit b1c to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(4) Articles of Amendment of Twentieth Century Investors, Inc., dated August 10, 1993 (filed electronically as Exhibit b1d to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(5) Articles Supplementary of Twentieth Century Investors, Inc., dated September 2, 1993 (filed electronically as Exhibit b1e to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(6) Articles Supplementary of Twentieth Century Investors, Inc., dated April 24, 1995 (filed electronically as Exhibit b1f to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(7) Articles Supplementary of Twentieth Century Investors, Inc., dated October 11, 1995 (filed electronically as Exhibit b1g to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(8) Articles Supplementary of Twentieth Century Investors, Inc., dated January 22, 1996 (filed electronically as Exhibit b1h to Post-Effective Amendment No. 73 to the Registration Statement of the Registrant on February 29, 1996, File No. 2-14213, and incorporated herein by reference).

(9) Articles Supplementary of Twentieth Century Investors, Inc., dated March 11, 1996 (filed electronically as Exhibit b1i to Post-Effective Amendment No. 75 to the Registration Statement of the Registrant on June 14, 1996, File No. 2-14213, and incorporated herein by reference).

(10) Articles Supplementary of Twentieth Century Investors, Inc., dated September 9, 1996 (filed electronically as Exhibit a10 to Post-Effective Amendment No. 85 to the Registration Statement of the Registrant on September 1, 1999, File No. 2-14213, and incorporated herein by reference).

(11) Articles of Amendment of Twentieth Century Investors, Inc., dated December 2, 1996 (filed electronically as Exhibit b1j to Post-Effective Amendment No. 76 to the Registration Statement of the Registrant on February 28, 1997, File No. 2-14213, and incorporated herein by reference).

(12) Articles Supplementary of American Century Mutual Funds, Inc., dated December 2, 1996 (filed electronically as Exhibit b1k to Post-Effective Amendment No. 76 to the Registration Statement of the Registrant on February 28, 1997, File No. 2-14213, and incorporated herein by reference).

(13) Articles Supplementary of American Century Mutual Funds, Inc., dated July 28, 1997 (filed electronically as Exhibit b1l to Post-Effective Amendment No. 78 to the Registration Statement of the Registrant on February 26, 1998, File No. 2-14213, and incorporated herein by reference).

(14) Articles Supplementary of American Century Mutual Funds, Inc., dated November 28, 1997 (filed electronically as Exhibit a13 to Post-Effective Amendment No. 83 to the Registration Statement of the Registrant on February 26, 1999, File No. 2-14213, and incorporated herein by reference).

(15) Certificate of Correction to Articles Supplementary of American Century Mutual Funds, Inc., dated December 18, 1997 (filed electronically as Exhibit a14 to Post-Effective Amendment No. 83 to the Registration Statement of the Registrant on February 26, 1999, File No. 2-14213, and incorporated herein by reference).

(16) Articles Supplementary of American Century Mutual Funds, Inc., dated December 18, 1997 (filed electronically as Exhibit b1m to Post-Effective Amendment No. 78 to the Registration Statement of the Registrant on February 26, 1998, File No. 2-14213, and incorporated herein by reference).

(17) Articles Supplementary of American Century Mutual Funds, Inc., dated January 25, 1999 (filed electronically as Exhibit a16 to Post-Effective Amendment No. 83 to the Registration Statement of the Registrant on February 26, 1999, File No. 2-14213, and incorporated herein by reference).

1 #

(18) Articles Supplementary of American Century Mutual Funds, Inc., dated February 16, 1999 (filed electronically as Exhibit a17 to Post-Effective Amendment No. 83 to the Registration Statement of the Registrant on February 26, 1999, File No. 2-14213, and incorporated herein by reference).

(19) Articles Supplementary of American Century Mutual Funds, Inc., dated August 2, 1999 (filed electronically as Exhibit a19 to Post-Effective Amendment No. 89 to the Registration Statement of the Registrant on December 1, 2000, File No. 2-14213, and incorporated herein by reference).

(20) Articles Supplementary of American Century Mutual Funds, Inc., dated November 19, 1999 (filed electronically as Exhibit a19 to Post-Effective Amendment No. 87 to the Registration Statement of the Registrant on November 29, 1999, File No. 2-14213, and incorporated herein by reference).

(21) Articles Supplementary of American Century Mutual Funds, Inc., dated March 5, 2001 (filed electronically as Exhibit a21 to Post-Effective Amendment No. 93 to the Registration Statement of the Registrant on April 20, 2001, File No. 2-14213, and incorporated herein by reference).

(22) Certificate of Correction to Articles Supplementary, dated April 3, 2001 (filed electronically as Exhibit a22 to Post-Effective Amendment No. 93 to the Registration Statement of the Registrant on April 20, 2001, File No. 2-14213, and incorporated herein by reference).

(23) Articles Supplementary of American Century Mutual Funds, Inc., dated June 14, 2002 (filed electronically as Exhibit a23 to Post-Effective Amendment No. 98 to the Registration Statement of the Registrant on October 10, 2002, File No. 2-14213, and incorporated herein by reference).

(24) Certificate of Correction to Articles Supplementary of American Century Mutual Funds, Inc., dated June 25, 2002 (filed electronically as Exhibit a24 to Post-Effective Amendment No. 98 to the Registration Statement of the Registrant on October 10, 2002, File No. 2-14213, and incorporated herein by reference).

(25) Articles Supplementary of American Century Mutual Funds, Inc., dated February 12, 2003 (filed electronically as Exhibit a25 to Post-Effective Amendment No. 100 to the Registration Statement of the Registrant on February 28, 2003, File No. 2-14213, and incorporated herein by reference).

(26) Certificate of Correction to Articles Supplementary of American Century Mutual Funds, Inc., dated February 28, 2003 (filed electronically as Exhibit a26 to Post-Effective Amendment No. 101 to the Registration Statement of the Registrant on August 28, 2003, File No. 2-14213, and incorporated herein by reference).

(27) Articles Supplementary of American Century Mutual Funds, Inc., dated August 14, 2003 (filed electronically as Exhibit a27 to Post-Effective Amendment No. 102 to the Registration Statement of the Registrant on August 28, 2003, File No. 2-14213, and incorporated herein by reference).

(28) Articles Supplementary of American Century Mutual Funds, Inc., dated January 14, 2004 (filed electronically as Exhibit a28 to Post-Effective Amendment No. 104 to the Registration Statement of the Registrant on February 26, 2004, File No. 2-14213, and incorporated herein by reference).

(29) Articles Supplementary of American Century Mutual Funds, Inc., dated November 17, 2004 (filed electronically as Exhibit a29 to Post-Effective Amendment No. 106 to the Registration Statement of the Registrant on November 29, 2004, File No. 2-14213, and incorporated herein by reference).

(30) Articles Supplementary of American Century Mutual Funds, Inc., dated January 13, 2005 (filed electronically as Exhibit a30 to Post-Effective Amendment No. 109 to the Registration Statement of the Registrant on February 25, 2005, File No. 2-14213, and incorporated herein by reference).

(31) Articles Supplementary of American Century Mutual Funds, Inc., dated June 22, 2005 (filed electronically as Exhibit a31 to Post-Effective Amendment No. 111 to the Registration Statement of the Registrant on July 28, 2005, File No. 2-14213, and incorporated herein by reference).

(32) Articles Supplementary of American Century Mutual Funds, Inc., dated December 13, 2005 (filed electronically as Exhibit 1(ff) to the Registration Statement on Form N-14 of the Registrant on December 22, 2005, File No. 2-14213, and incorporated herein by reference).

(33) Articles Supplementary of American Century Mutual Funds, Inc., dated March 15, 2006 (filed electronically as Exhibit a33 to Post-Effective Amendment No. 116 to the Registration Statement of the Registrant on March 31, 2006, File No. 2-14213, and incorporated herein by reference).

(34) Articles Supplementary of American Century Mutual Funds, Inc., dated November 14, 2006 (filed electronically as Exhibit 1(hh) to the Registration Statement on Form N-14 of the Registrant on February 27, 2007, File No. 2-14213, and incorporated herein by reference).

(35) Articles of Amendment of American Century Mutual Funds, Inc., dated August 29, 2007 (filed electronically as Exhibit a35 to Post-Effective Amendment No. 121 to the Registration Statement of the Registrant on September 27, 2007, File No. 2-14213, and incorporated herein by reference).

2 #

(36) Articles Supplementary of American Century Mutual Funds, Inc., dated September 10, 2007 (filed electronically as Exhibit a36 to Post-Effective Amendment No. 121 to the Registration Statement of the Registrant on September 27, 2007, File No. 2-14213, and incorporated herein by reference).

(37) Articles of Amendment of American Century Mutual Funds, Inc., dated November 27, 2007 (filed electronically as Exhibit a37 to Post-Effective Amendment No. 122 to the Registration Statement of the Registrant on February 28, 2008, File No. 2-14213, and incorporated herein by reference).

(38) Articles Supplementary of American Century Mutual Funds, Inc., dated November 27, 2007 (filed electronically as Exhibit a38 to Post-Effective Amendment No. 122 to the Registration Statement of the Registrant on February 28, 2008, File No. 2-14213, and incorporated herein by reference.)

(39) Articles Supplementary of American Century Mutual Funds, Inc., dated June 5, 2008 (filed electronically as Exhibit 1(mm) to the Registration Statement on Form N-14 of the Registrant on January 30, 2009, File No. 2-14213, and incorporated herein by reference).

(40) Articles Supplementary of American Century Mutual Funds, Inc., dated March 9, 2009 (filed electronically as Exhibit a40 to Post-Effective Amendment No. 128 to the Registration Statement of the Registrant on July 15, 2011, File No. 2-14213, and incorporated herein by reference).

(41) Articles Supplementary of American Century Mutual Funds, Inc., dated September 15, 2009 (filed electronically as Exhibit a41 to Post-Effective Amendment No. 128 to the Registration Statement of the Registrant on July 15, 2011, File No. 2-14213, and incorporated herein by reference).

(42) Articles of Amendment of American Century Mutual Funds, Inc., dated November 5, 2009 (filed electronically as Exhibit a40 to Post-Effective Amendment No. 125 to the Registration Statement of the Registrant on February 8, 2010, File No. 2-14213, and incorporated herein by reference).

(43) Articles of Amendment of American Century Mutual Funds, Inc., dated February 16, 2010 (filed electronically as Exhibit a41 to Post-Effective Amendment No. 126 to the Registration Statement of the Registrant on February 28, 2011, File No. 2-14213, and incorporated herein by reference).

(44) Articles of Amendment of American Century Mutual Funds, Inc., dated June 28, 2010 (filed electronically as Exhibit a42 to Post-Effective Amendment No. 126 to the Registration Statement of the Registrant on February 28, 2011, File No. 2-14213, and incorporated herein by reference).

(45) Articles Supplementary of American Century Mutual Funds, Inc., dated November 1, 2010 (filed electronically as Exhibit a43 to Post-Effective Amendment No. 126 to the Registration Statement of the Registrant on February 28, 2011, File No. 2-14213, and incorporated herein by reference).

(46) Articles of Amendment of American Century Mutual Funds, Inc., dated September 7, 2011 (filed electronically as Exhibit a46 to Post-Effective Amendment No. 129 to the Registration Statement of the Registrant on September 29, 2011, File No. 2-14213, and incorporated herein by reference).

(47) Articles of Amendment of American Century Mutual Funds, Inc., dated May 2, 2013 (filed electronically as Exhibit a47 to Post-Effective Amendment No. 137 to the Registration Statement of the Registrant on July 25, 2013, File No. 2-14213, and incorporated herein by reference).

(48) Articles of Amendment of American Century Mutual Funds, Inc., dated October 2, 2013 (filed electronically as Exhibit a48 to Post-Effective Amendment No. 141 to the Registration Statement of the Registrant on February 27, 2015, File No. 2-14213, and incorporated herein by reference).

(49) Articles Supplementary of American Century Mutual Funds, Inc., dated January 6, 2014 (filed electronically as Exhibit a49 to Post-Effective Amendment No. 141 to the Registration Statement of the Registrant on February 27, 2015, File No. 2-14213, and incorporated herein by reference).

(50) Articles of Amendment of American Century Mutual Funds, Inc., dated June 11, 2015 (filed electronically as Exhibit a50 to Post-Effective No. 146 to the Registration Statement of the Registrant on September 12, 2016, File No. 2-14213, and incorporated herein by reference).

(51) Articles of Amendment of American Century Mutual Funds, Inc., dated July 13, 2016 (filed electronically as Exhibit a51 to Post-Effective No. 146 to the Registration Statement of the Registrant on September 12, 2016, File No. 2-14213, and incorporated herein by reference).

(52) Articles of Amendment of American Century Mutual Funds, Inc., dated August 11, 2016 (filed electronically as Exhibit a52 to Post-Effective No. 146 to the Registration Statement of the Registrant on September 12, 2016, File No. 2-14213, and incorporated herein by reference).

(53) Articles of Amendment of American Century Mutual Funds, Inc., effective as of April 10, 2017 (filed electronically as Exhibit a53 to Post-Effective No. 151 to the Registration Statement of the Registrant on April 7, 2017, File No. 2-14213, and incorporated herein by reference).

3 #

(54) Articles of Amendment of American Century Mutual Funds, Inc., effective as of July 31, 2017, are included herein.

(b) Amended and Restated By-laws, dated December 4, 2012 (filed electronically as Exhibit b to Post-Effective Amendment No. 133 to the Registration Statement of the Registrant on February 28, 2013, File No. 2-14213, and incorporated herein by reference).

(c) Registrant hereby incorporates by reference, as though set forth fully herein, Article Fifth, Article Seventh, and Article Eighth, of Registrant’s Articles of Incorporation, appearing as Exhibit (a)(1) herein and Article Fifth of Registrant’s Articles of Amendment, appearing as Exhibit (a)(4) herein and Sections 3-11 of Registrant’s Amended and Restated Bylaws, appearing as Exhibit b herein.

(d) (1) Restated Management Agreement with American Century Investment Management, Inc., effective as of August 1, 2011 (filed electronically as Exhibit d1 to Post-Effective Amendment No. 129 to the Registration Statement of the Registrant on September 29, 2011, File No. 2-14213, and incorporated herein by reference).

(2) Amendment No. 1 to Restated Management Agreement with American Century Investment Management, Inc., effective as of September 30, 2011 (filed electronically as Exhibit d2 to Post-Effective Amendment No. 129 to the Registration Statement of the Registrant on September 29, 2011, File No. 2-14213, and incorporated herein by reference).

(3) Amendment No. 2 to Restated Management Agreement with American Century Investment Management, Inc., effective as of July 26, 2013 (filed electronically as Exhibit d3 to Post-Effective Amendment No. 137 to the Registration Statement of the Registrant on July 25, 2013, File No. 2-14213, and incorporated herein by reference).

(4) Amendment No. 3 to Restated Management Agreement with American Century Investment Management, Inc., effective as of August 1, 2014 (filed electronically as Exhibit d4 to Post-Effective Amendment No. 141 to the Registration Statement of the Registrant on February 27, 2015, File No. 2-14213, and incorporated herein by reference).

(5) Amendment No. 4 to Restated Management Agreement with American Century Investment Management, Inc., effective as of December 1, 2016 (filed electronically as Exhibit d5 to Post-Effective Amendment No. 147 to the Registration Statement of the Registrant on November 28, 2016, File No. 2-14213, and incorporated herein by reference).

(6) Amendment No. 5 to Restated Management Agreement with American Century Investment Management, Inc., effective as of April 10, 2017 (filed electronically as Exhibit d6 to Post-Effective No. 151 to the Registration Statement of the Registrant on April 7, 2017, File No. 2-14213, and incorporated herein by reference).

(7) Amendment No. 6 to Restated Management Agreement with American Century Investment Management, Inc., effective as of July 31, 2017, is included herein.

(e) (1) Amended and Restated Distribution Agreement with American Century Investment Services, Inc., effective as of July 31, 2017, is included herein.

(2) Form of Dealer/Agency Agreement (filed electronically as Exhibit e2 to Post-Effective Amendment No. 75 to the Registration Statement of American Century Government Income Trust on April 7, 2017, File No. 002-99222, and incorporated herein by reference).

(f) Not Applicable.

(g) (1) Master Custodian Agreement with State Street Bank and Trust Company, made as of July 29, 2011 (filed electronically as Exhibit g2 to Post-Effective Amendment No. 61 to the Registration Statement of American Century Government Income Trust on July 29, 2011, File No. 2-99222, and incorporated herein by reference).

(2) Amendment to Master Custodian Agreement with State Street Bank and Trust Company, made as of May 21, 2015 (filed electronically as Exhibit g3 to Post-Effective Amendment No. 57 to the Registration Statement of American Century Target Maturities Trust on January 28, 2016, File No. 002-94608, and incorporated herein by reference).

(3) Amendment to Master Custodian Agreement with State Street Bank and Trust Company, made as of January 9, 2018 (filed electronically as Exhibit g3 to Pre-Effective Amendment No. 2 to the Registration Statement of American Century ETF Trust on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

(h) Amended and Restated Transfer Agency Agreement between American Century Mutual Funds, Inc. and American Century Services, LLC, dated August 1, 2007 (filed electronically as Exhibit h1 to Post-Effective Amendment No. 121 to the Registration Statement of the Registrant on September 27, 2007, File No. 2-14213, and incorporated herein by reference).

(i) Opinion and Consent of Counsel, dated April 7, 2017 (filed electronically as Exhibit i to Post-Effective No. 151 to the Registration Statement of the Registrant on April 7, 2017, File No. 2-14213, and incorporated herein by reference).

(j) Consent of Deloitte & Touche LLP, independent registered public accounting firm, dated February 26, 2018, is included herein.

(k) Not applicable.

(l) Not applicable.

4 #

(m) (1) Amended and Restated Master Distribution and Individual Shareholder Services Plan (C Class), effective as of September 30, 2011 (filed electronically as Exhibit m1 to Post-Effective Amendment No. 129 to the Registration Statement of the Registrant on September 29, 2011, File No. 2-14213, and incorporated herein by reference).

(2) Amended and Restated Master Distribution and Individual Shareholder Services Plan (A Class), effective as of December 1, 2016 (filed electronically as Exhibit m2 to Post-Effective Amendment No. 147 to the Registration Statement of the Registrant on November 28, 2016, File No. 2-14213, and incorporated herein by reference).

(3) Amended and Restated Master Distribution and Individual Shareholder Services Plan (R Class), effective as of December 1, 2016 (filed electronically as Exhibit m3 to Post-Effective Amendment No. 147 to the Registration Statement of the Registrant on November 28, 2016, File No. 2-14213, and incorporated herein by reference).

(n) Amended and Restated Multiple Class Plan, effective as of July 31, 2017, is included herein.

(o) Reserved.

(p) (1) American Century Investments Code of Ethics (filed electronically as Exhibit p1 to Post-Effective Amendment No. 63 to the Registration Statement of American Century California Tax-Free and Municipal Funds on December 29, 2017, File No. 2-82734, and incorporated herein by reference).

(2) Independent Directors’ Code of Ethics amended March 4, 2000 (filed electronically as Exhibit p2 to Pre-Effective Amendment No. 1 to the Registration Statement of American Century Growth Funds, Inc. on May 30, 2006, File No. 333-132114, and incorporated herein by reference).

(q) (1) Power of Attorney, effective January 1, 2018 (filed electronically as Exhibit q1 to Post-Effective Amendment No. 99 to the Registration Statement of American Century Capital Portfolios, Inc., on February 27, 2018, File No. 33-64872, and incorporated herein by reference).

(2) Secretary’s Certificate, December 1, 2017 (filed electronically as Exhibit q2 to Post-Effective Amendment No. 98 to the Registration Statement of American Century Capital Portfolios, Inc., on December 15, 2017, File No. 33-64872, and incorporated herein by reference).

Item 29. Persons Controlled by or Under Common Control with Registrant

Some of the directors of the Registrant serve, in substantially identical capacities, other registered investment companies in the American Century family of funds. In addition, several of the officers of the Registrant serve as officers for other registered investment companies in the American Century family of funds, each of which has American Century Investment Management, Inc. as its investment advisor. Nonetheless, the Registrant takes the position that it is not under common control with other American Century investment companies because the power residing in the respective boards and officers arises as a result of an official position with the respective investment companies.

Item 30. Indemnification

The Registrant is a Maryland corporation. Section 2-418 of the General Corporation Law of Maryland allows a Maryland corporation to indemnify its directors, officers, employees and agents to the extent provided in such statute.

Article Eighth of the Registrant’s Articles of Incorporation requires the indemnification of the corporation’s directors and officers to the extent permitted by the General Corporation Law of Maryland, the Investment Company Act and all other applicable laws.

The Registrant has purchased an insurance policy insuring its officers and directors against certain liabilities which such officers and directors may incur while acting in such capacities and providing reimbursement to the Registrant for sums which it may be permitted or required to pay to its officers and directors by way of indemnification against such liabilities, subject in either case to clauses respecting deductibility and participation.

Item 31. Business and Other Connections of the Investment Advisor

In addition to serving as the Registrant’s advisor, American Century Investment Management, Inc. (ACIM) provides portfolio management services for other investment companies as well as for other business and institutional clients. Except as listed below, none of the directors or officers of the advisor are or have been engaged in any business, profession, vocation or employment of a substantial nature, other than on behalf of the advisor and its affiliates, within the last two fiscal years.

Elaine Bourke (Vice President of ACIM). Served as Product Specialist, Credit Suisse Asset Management, 11 Madison Avenue, New York, NY 10010, 2011 to 2017.

Al Polit (Vice President of ACIM). Served as Partner and Senior Portfolio Manager, Lombardia Capital Partners, LLC, 55 South Lake Avenue, Suite 750, Pasadena, CA 91101, 2011 to 2017.

5 #

Edward Rosenberg (Vice President of ACIM). Served as Senior Vice President, Flexshares Head of ETF Capital Markets, Northern Trust, 50 South La Salle Street, Chicago, IL 60690, 2012 to 2017.

Jim Shore (Vice President of ACIM). Served as Founding Principal and Portfolio Manager, NorthRoad Capital Management, 530 5th Avenue, Lobby 1, New York, NY 10036, 2002 to 2017.

Guillaume Mascotto (Vice President of ACIM) Served as Vice President, Pacific Investment Management Company, 650 Newport Center Drive, Newport Beach, CA 92660, 2017 and Senior ESG Research Analyst, MSCI Inc., 250 Greenwich Street, New York, NY 10007, 2014 to 2017.

Matt Lewis (Vice President of ACIM). Served as Head, iShares Broker Dealer Execution Services-America, BlackRock, 400 Howard Street, San Francisco, CA 94105, 2012 to 2017

Michael Rode (Vice President of ACIM) Served as Managing Director, SunTrust Robinson Humphrey, 711 5th Avenue, New York, NY 10022, 2015 to 2017

Vidya Rajappa (Vice President of ACIM) Served as Senior Vice President, Alliance Bernstein, 1345 6th Ave, New York, NY 10105, 2001 to 2016

The principal address for ACIM is 4500 Main Street, Kansas City, MO 64111.

Item 32. Principal Underwriters

I. (a) American Century Investment Services, Inc. (ACIS) acts as principal underwriter for the following investment companies:

American Century Asset Allocation Portfolios, Inc.

American Century California Tax-Free and Municipal Funds

American Century Capital Portfolios, Inc.

American Century Growth Funds, Inc.

American Century Government Income Trust

American Century International Bond Funds

American Century Investment Trust

American Century Municipal Trust

American Century Mutual Funds, Inc.

American Century Quantitative Equity Funds, Inc.

American Century Strategic Asset Allocations, Inc.

American Century Target Maturities Trust

American Century Variable Portfolios, Inc.

American Century Variable Portfolios II, Inc.

American Century World Mutual Funds, Inc.

ACIS is registered with the Securities and Exchange Commission as a broker-dealer and is a member of the Financial Industry Regulatory Authority. ACIS is located at 4500 Main Street, Kansas City, Missouri 64111. ACIS is a wholly-owned subsidiary of American Century Companies, Inc.

(b) The following is a list of the directors and officers of ACIS as of January 8, 2018:



Name and Principal Business Address*	Positions and Offices With Underwriter	Positions and Offices With Registrant

Peter Cieszko	Director, President and Chief Executive Officer	none

Joe Schultz	Director and Senior Vice President	none

Jay Hummel	Senior Vice President	none

Gary P. Kostuke	Senior Vice President	none

6 #



Name and Principal Business Address*	Positions and Offices With Underwriter	Positions and Offices With Registrant
Richard T. Luchinsky	Senior Vice President	none

Andy Provencher	Senior Vice President	none

Michael J. Raddie	Senior Vice President	none

Elizabeth A. Young	Chief Privacy Officer, Senior AML Officer and Vice President	none

Ward D. Stauffer	Secretary	Secretary

Charles A. Etherington	Assistant Secretary and General Counsel	Senior Vice President and General Counsel

Brian L. Brogan	Assistant Secretary	Assistant Vice President and Assistant Secretary

Otis H. Cowan	Assistant Secretary	Assistant Vice President and Assistant Secretary

Janet A. Nash	Assistant Secretary	Assistant Vice President and Assistant Secretary

David H. Reinmiller	Assistant Secretary	Vice President

Robert Allen	Vice President	none

Ryan Ander	Vice President	none

Jennifer L. Barron	Vice President	none

Matthew R. Beck	Vice President	none

Stacey L. Belford	Vice President	none

Michael Bell	Vice President	none

Bradley Bendle	Vice President	none

Hayden S. Berk	Vice President	none

Stacy Bernstein	Vice President	none

Andrew M. Billingsley	Vice President	none

James D. Blythe	Vice President	none

Don Bonder	Vice President	none

Booth Boughan	Vice President	none

Emily Brockmeier	Vice President	none

Bruce W. Caldwell	Vice President	none

Alan D. Chingren	Vice President	none

Clayton Collins	Vice President	none

Chatten Cowherd	Vice President	none

7 #



Name and Principal Business Address*	Positions and Offices With Underwriter	Positions and Offices With Registrant
D. Alan Critchell, Jr.	Vice President	none

Terry Daugherty	Vice President	none

Mark Davis	Vice President	none

Ellen DeNicola	Vice President	none

Christopher J. DeSimone	Vice President	none

David P. Donovan	Vice President	none

Gabriel Dorman	Vice President	none

Ryan C. Dreier	Vice President	none

Devon Drew	Vice President	none

Megan Ekleberry	Vice President	none

Kevin G. Eknaian	Vice President	none

Catherine Ellis	Vice President	none

Sean Ensminger	Vice President	none

Gregg Erdman	Vice President	none

Christopher Van Evans	Vice President	none

Jill A. Farrell	Vice President	none

Michael C. Galkoski	Vice President	none

Diane Gallagher	Vice President	none

Glenn Godin	Vice President	none

Wendy Goodyear	Vice President	none

Timothy R. Guay	Vice President	none

Brett G. Hart	Vice President	none

Stacey L. Hoffman	Vice President	none

Tom Horning	Vice President	none

Robert O. Houston	Vice President	none

Terence M. Huddle	Vice President	none

Jennifer Ison	Vice President	none

Christopher T. Jackson	Vice President	none

Michael A. Jackson	Vice President	none

Cindy A. Johnson	Vice President	none

Phillip J. Joyce	Vice President	none

8 #



Name and Principal Business Address*	Positions and Offices With Underwriter	Positions and Offices With Registrant

Wesley S. Kabance	Vice President	none

Matthew S. Kives	Vice President	none

Matthew Kobata	Vice President	none

Joshua Kurtz	Vice President	none

Valeriya Litvak	Vice President	none

Dennis Logan	Vice President	none

Franklin Longo	Vice President	none

Brian Mayfield	Vice President	none

Thomas C. McCarthy	Vice President	none

Walter McGhee	Vice President	none

Joseph P. McGivney, Jr.	Vice President	none

Marek Michejada	Vice President	none

Christopher M. Monachino	Vice President	none

Nate Morris	Vice President	none

Susan M. Morris	Vice President	none

David M. Murphy	Vice President	none

Andrew Nepomuceno	Vice President	none

Kelly A. Ness	Vice President	none

John E. O’Connor	Vice President	none

Brad O’Neill	Vice President	none

Scott Pawlich	Vice President	none

Christy A. Poe	Vice President	none

Nathaniel Proctor	Vice President	none

William Rader	Vice President	none

Cheryl Redline	Vice President and Treasurer	none

Hunter Rodgers	Vice President	none

Gerald M. Rossi	Vice President	none

Brian Schappert	Vice President	none

Michael Schoonmaker	Vice President	none

Keith Seidman	Vice President	none

9 #



Name and Principal Business Address*	Positions and Offices With Underwriter	Positions and Offices With Registrant
Paul Shahrokhi	Vice President	none

Tracey L. Shank	Vice President	none

Amy D. Shelton	Vice President and Chief Compliance Officer	Vice President and Chief Compliance Officer

Steven Silverman	Vice President	none

Richard Smith	Vice President	none

Debra K. Stalnaker	Vice President	none

Michael W. Suess	Vice President	none

Michael T. Sullivan	Vice President	none

Lindsey Thompson	Vice President	none

Stephen C. Thune	Vice President	none

Tina Ussery-Franklin	Vice President	none

Ryan VanSickle	Vice President	none

Todd Williams	Vice President	none

Justin Wingate	Vice President	none

* All addresses are 4500 Main Street, Kansas City, Missouri 64111

Item 33. Location of Accounts and Records

All accounts, books and other documents required to be maintained by Section 31(a) of the 1940 Act, and the rules promulgated thereunder, are in the possession of American Century Investment Management, Inc., 4500 Main Street, Kansas City, MO 64111 and 1665 Charleston Road, Mountain View, CA 94043; American Century Services, LLC, 4500 Main Street, Kansas City, MO 64111; State Street Bank and Trust Company, State Street Financial Center, One Lincoln Street, Boston, MA 02111; and JPMorgan Chase Bank, 4 Metro Tech Center, Brooklyn, NY 11245.

Item 34. Management Services – Not Applicable.

Item 35. Undertakings – Not Applicable.

10 #

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement amendment pursuant to Rule 485(b) promulgated under the Securities Act of 1933, as amended, and has duly caused this amendment to be signed on its behalf by the undersigned, duly authorized, in the City of Kansas City, State of Missouri on the 27 ^th day of February, 2018.



	American Century Mutual Funds, Inc.
	(Registrant)
	By: * ___________________________________ Jonathan S. Thomas President

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement amendment has been signed by the following persons in the capacities and on the dates indicated.



SIGNATURE	TITLE	DATE

*	President and Director	February 27, 2018
Jonathan S. Thomas

*	Vice President, Treasurer and Chief Financial Officer	February 27, 2018
C. Jean Wade	Vice President, Treasurer and Chief Financial Officer

*	Director	February 27, 2018
Thomas W. Bunn

*	Director	February 27, 2018
Barry Fink

*	Director	February 27, 2018
Andrea C. Hall, Ph.D.

*	Director	February 27, 2018
Jan M. Lewis

*	Director	February 27, 2018
M. Jeannine Strandjord

*	Director	February 27, 2018
John R. Whitten

*	Director and Chairman of the Board	February 27, 2018
Stephen E. Yates




*By: /s/ Giles Walsh ____________________________________ Giles Walsh Attorney in Fact (pursuant to Power of Attorney dated January 1, 2018)



EXHIBIT NUMBER	DESCRIPTION OF DOCUMENT
EXHIBIT (a)(54)	Articles of Amendment of American Century Mutual Funds, Inc., effective as of July 31, 2017

EXHIBIT (d)(7)	Amendment No. 6 to Restated Management Agreement with American Century Investment Management, Inc., effective as of July 31, 2017

EXHIBIT (e)(1)	Amended and Restated Distribution Agreement with American Century Investment Services, Inc., effective as of July 31, 2017

EXHIBIT (j)	Consent of Deloitte & Touche LLP, independent registered public accounting firm, dated February 26, 2018

EXHIBIT (n)	Amended and Restated Multiple Class Plan, effective as of July 31, 2017

AMERICAN CENTURY MUTUAL FUNDS, INC.

ARTICLES OF AMENDMENT

AMERICAN CENTURY MUTUAL FUNDS, INC., a Maryland corporation whose principal Maryland office is located in Baltimore, Maryland (the “Corporation”), hereby certifies to the State Department of Assessments and Taxation of Maryland that:

FIRST: The Corporation is registered as an open-end company under the Investment Company Act of 1940.

SECOND: Pursuant to authority expressly vested in the Board of Directors by Article FIFTH and Article SEVENTH of the Articles of Incorporation of the Corporation (“Articles of Incorporation”), the Board of Directors of the Corporation has (i) determined to change the name of the Institutional Class to G Class for the series of shares titled NT Growth Fund and NT Heritage Fund; (ii) determined to set the unified management fee rate for the G Class of each of the Funds to be equal to the unified management fee rate for the existing R6 Class of the same Fund; (iii) determined to eliminate the R6 Class of each of the Funds; and (iv) increased in some cases and decreased in some cases the number of shares of capital stock of certain series and classes that the Corporation has authority to issue in accordance with Section 2-105(c) of the Maryland General Corporation Law (the “Reallocation”).

THIRD: Immediately prior to the Reallocation the Corporation had the authority to issue Thirteen Billion (13,000,000,000) shares of capital stock. Following the Reallocation, the Corporation has the authority to issue Thirteen Billion (13,000,000,000) shares of capital stock.

FOURTH: The par value of shares of the Corporation's capital stock before the Reallocation was, and after the Reallocation is, One Cent ($0.01) per share.

FIFTH: Immediately prior to the Reallocation, the aggregate par value of all shares of stock that the Corporation was authorized to issue was One Hundred Thirty Million Dollars ($130,000,000). After giving effect to the Reallocation, the aggregate par value of all shares of stock that the Corporation is authorized to issue is One Hundred Thirty Million Dollars ($130,000,000).

SIXTH: Immediately prior to the Reallocation the number of shares allocated among the duly established classes of shares (each hereinafter referred to as a “Class”) of the thirteen (13) series of stock and aggregate par value of each Class was as follows:



Series Name	Class Name	No. of Shares	Aggregate Par Value
Growth Fund	Investor	1,500,000,000	$15,000,000
	I	400,000,000	4,000,000
	A	120,000,000	1,200,000
	C	20,000,000	200,000
	R	30,000,000	300,000
	R6	300,000,000	3,000,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000



Series Name	Class Name	No. of Shares	Aggregate Par Value
Select Fund	Investor	350,000,000	3,500,000
	I	35,000,000	350,000
	A	50,000,000	500,000
	C	20,000,000	200,000
	R	30,000,000	300,000
	R6	50,000,000	500,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

Ultra Fund	Investor	3,350,000,000	33,500,000
	I	130,000,000	1,300,000
	A	70,000,000	700,000
	C	20,000,000	200,000
	R	40,000,000	400,000
	R6	50,000,000	500,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

Heritage Fund	Investor	1,500,000,000	15,000,000
	I	130,000,000	1,300,000
	A	340,000,000	3,400,000
	C	80,000,000	800,000
	R	40,000,000	400,000
	R6	60,000,000	600,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

All Cap Growth Fund	Investor	275,000,000	2,750,000
	I	20,000,000	200,000
	A	20,000,000	200,000
	C	20,000,000	200,000
	R	20,000,000	200,000

Balanced Fund	Investor	360,000,000	3,600,000
	I	40,000,000	400,000
	R5	50,000,000	500,000

New Opportunities Fund	Investor	180,000,000	1,800,000
	I	20,000,000	200,000
	A	30,000,000	300,000
	C	20,000,000	200,000
	R	20,000,000	200,000

Capital Value Fund	Investor	180,000,000	1,800,000
	I	20,000,000	200,000
	A	40,000,000	400,000



Series Name	Class Name	No. of Shares	Aggregate Par Value
Adaptive Equity Fund (f/k/a Veedot	Investor	140,000,000	1,400,000
Fund)	I	70,000,000	700,000
	A	40,000,000	400,000
	R	40,000,000	400,000
	R6	40,000,000	400,000

Small Cap Growth Fund	Investor	140,000,000	1,400,000
	I	200,000,000	2,000,000
	A	130,000,000	1,300,000
	C	20,000,000	200,000
	R	20,000,000	200,000
	R6	50,000,000	500,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

Sustainable Equity Fund (f/k/a	Investor	120,000,000	1,200,000
Fundamental Equity Fund)	I	20,000,000	200,000
	A	120,000,000	1,200,000
	C	40,000,000	400,000
	R	20,000,000	200,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

NT Growth Fund	Institutional	590,000,000	5,900,000
	R6	70,000,000	700,000

NT Heritage Fund	Institutional	430,000,000	4,300,000
	R6	70,000,000	700,000

SEVENTH: Pursuant to authority expressly vested in the Board of Directors by Article FIFTH and Article SEVENTH of the Articles of Incorporation, the Board of Directors of the Corporation has (a) approved the amendments stated in Article SECOND above and (b) has allocated Thirteen Billion (13,000,000,000) shares of the Thirteen Billion (13,000,000,000) shares of authorized capital stock of the Corporation among the thirteen (13) series of stock of the Corporation and the various Classes as follows:



Series Name	Class Name	No. of Shares	Aggregate Par Value
Growth Fund	Investor	1,500,000,000	$15,000,000
	I	400,000,000	4,000,000
	A	120,000,000	1,200,000
	C	20,000,000	200,000
	R	30,000,000	300,000
	R6	300,000,000	3,000,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000



Series Name	Class Name	No. of Shares		Aggregate Par Value
Select Fund	Investor	350,000,000		3,500,000
	I	35,000,000		350,000
	A	50,000,000		500,000
	C	20,000,000		200,000
	R	30,000,000		300,000
	R6	50,000,000		500,000
	R5	50,000,000		500,000
	Y	50,000,000		500,000

Ultra Fund	Investor	3,350,000,000		33,500,000
	I	130,000,000		1,300,000
	A	70,000,000		700,000
	C	20,000,000		200,000
	R	40,000,000		400,000
	R6	50,000,000		500,000
	R5	50,000,000		500,000
	Y	50,000,000		500,000

Heritage Fund	Investor	1,500,000,000		15,000,000
	I	130,000,000		1,300,000
	A	340,000,000		3,400,000
	C	80,000,000		800,000
	R	40,000,000		400,000
	R6	60,000,000		600,000
	R5	50,000,000		500,000
	Y	50,000,000		500,000

All Cap Growth Fund	Investor	275,000,000		2,750,000
	I	20,000,000		200,000
	A	20,000,000		200,000
	C	20,000,000		200,000
	R	20,000,000		200,000

Balanced Fund	Investor	360,000,000		3,600,000
	I	40,000,000		400,000
	R5	50,000,000		500,000

New Opportunities Fund	Investor	180,000,000	1,800,000
	I	20,000,000	200,000
	A	30,000,000	300,000
	C	20,000,000	200,000
	R	20,000,000	200,000

Capital Value Fund	Investor	180,000,000	1,800,000
	I	20,000,000	200,000
	A	40,000,000	400,000



Series Name	Class Name	No. of Shares		Aggregate Par Value
Adaptive Equity Fund (f/k/a Veedot	Investor	140,000,000	1,400,000
Fund)	I	70,000,000	700,000
	A	40,000,000	400,000
	R	40,000,000	400,000
	R6	40,000,000	400,000

Small Cap Growth Fund	Investor	140,000,000	1,400,000
	I	200,000,000	2,000,000
	A	130,000,000	1,300,000
	C	20,000,000	200,000
	R	20,000,000	200,000
	R6	50,000,000	500,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

Sustainable Equity Fund (f/k/a	Investor	120,000,000	1,200,000
Fundamental Equity Fund)	I	20,000,000	200,000
	A	120,000,000	1,200,000
	C	40,000,000	400,000
	R	20,000,000	200,000
	R5	50,000,000	500,000
	Y	50,000,000	500,000

NT Growth Fund	G	660,000,000	6,600,000

NT Heritage Fund	G	500,000,000	5,000,000

EIGHTH: Except as otherwise provided by the express provisions of these Articles of Amendment, nothing herein shall limit, by inference or otherwise, the discretionary right of the Board of Directors to serialize, classify or reclassify and issue any unissued shares of any series or class or any unissued shares that have not been allocated to a series or class, and to fix or alter all terms thereof, to the full extent provided by the Articles of Incorporation.

NINTH: A description of the series and classes of shares, including the preferences, conversion and other rights, voting powers, restrictions, limitations as to dividends, qualifications, and terms and conditions for redemption is set forth in the Articles of Incorporation and is not changed by these Articles of Amendment, except with respect to the creation and/or designation of the various series.

TENTH: The Board of Directors of the Corporation duly adopted resolutions dividing into series and classes the authorized capital stock of the Corporation and allocating shares to each as set forth in these Articles of Amendment.

ELEVENTH: The amendments to the Articles of Incorporation as set forth above was approved by at least a majority of the entire Board of Directors of the Corporation and were limited to changes expressly authorized by Section 2-105(c)(12) or Section 2-605 of the Maryland General Corporation Law without action by the stockholders.

TWELFTH: These Articles of Amendment shall become effective at 12:01 a.m. on July 31, 2017.

[Remainder of page intentionally left blank; signature page to follow.]

IN WITNESS WHEREOF, AMERICAN CENTURY MUTUAL FUNDS, INC. has caused these Articles of Amendment to be signed and acknowledged in its name and on its behalf by its Senior Vice President and attested to by its Assistant Secretary on this 5 ^th day of July, 2017.



ATTEST:		AMERICAN CENTURY MUTUAL FUNDS, INC.


/s/ Otis H. Cowan		/s/ Charles A. Etherington
Name:	Otis H. Cowan	Name:	Charles A. Etherington
Title	Assistant Secretary	Title:	Senior Vice President

THE UNDERSIGNED SENIOR VICE PRESIDENT OF AMERICAN CENTURY MUTUAL FUNDS, INC., who executed on behalf of said Corporation the foregoing Articles of Amendment, of which this certificate is made a part, hereby acknowledges, in the name of and on behalf of said Corporation, as to all matters or facts required to be verified under oath, the foregoing Articles of Amendment to be the corporate act of said Corporation and further certifies that, to the best of his knowledge, information and belief, those matters and facts, are true in all material respects under the penalties of perjury.



Dated: July 5, 2017		/s/ Charles A. Etherington
		Charles A. Etherington, Senior Vice President

American Century Mutual Funds, Inc.

AMENDMENT NO. 6 TO RESTATED MANAGEMENT AGREEMENT

THIS AMENDMENT NO. 6 TO RESTATED MANAGEMENT AGREEMENT (“Amendment”) is effective as of the 31 ^st day of July, 2017, by and between AMERICAN CENTURY MUTUAL FUNDS, INC., a Maryland corporation (hereinafter called the “Corporation”), and AMERICAN CENTURY INVESTMENT MANAGEMENT, INC., a Delaware corporation (hereinafter called the “Investment Manager”).

WHEREAS, the Corporation and the Investment Manager are parties to a certain Restated Management Agreement effective as of August 1, 2011, and amended effective as of September 30, 2011, July 26, 2013, August 1, 2014, December 1, 2016 and April 10, 2017 (“Agreement”);

WHEREAS, the parties hereto desire to enter into this Amendment to reflect the name change of the Institutional Class of Common stock to G Class and amend the fee schedule of such class for the series of shares titled NT Growth Fund and NT Heritage Fund; and

WHEREAS , the parties hereto desire to enter into this Amendment to reflect the elimination of the R6 Class of the series of shares titled NT Growth Fund and NT Heritage Fund.

NOW, THEREFORE, IN CONSIDERATION of the mutual promises and agreements herein contained, the parties agree as follows:

1. Amendment of Schedule A. Schedule A to the Agreement is hereby amended by deleting it in its entirety and inserting in lieu therefor the Schedule A attached hereto.

2. Ratification and Confirmation of Agreement. In the event of a conflict between the terms of this Amendment and the Agreement, it is the intention of the parties that the terms of this Amendment shall control and the Agreement shall be interpreted on that basis. To the extent the provisions of the Agreement have not been amended by this Amendment, the parties hereby confirm and ratify the Agreement.

3. Full Force and Effect. Except as expressly supplemented, amended or consented to hereby, all of the representations, warranties, terms, covenants and conditions of the Agreement shall remain unamended and shall continue to be in full force and effect.

[Remainder of page intentionally left blank; signature page to follow.]

American Century Mutual Funds, Inc.

IN WITNESS WHEREOF, the parties have caused this Amendment to be duly executed by their respective duly authorized officers to be effective as of the day and year first above written.



American Century Investment Management, Inc.	American Century Mutual Funds, Inc.
/s/ Otis H. Cowan	/s/ Charles A. Etherington
Otis H. Cowan Vice President	Charles A. Etherington Senior Vice President

American Century Mutual Funds, Inc.

Schedule A

Fee Schedules



Series	Investment Strategy Assets	Fee Schedule by Class
Series	Investment Strategy Assets	Investor	I	A	C	R	R6	R5	Y
Ultra Fund	First $4 billion	0.990%	0.790%	0.990%	0.990%	0.990%	0.640%	0.790%	0.640%
	Next $4 billion	0.970%	0.770%	0.970%	0.970%	0.970%	0.620%	0.770%	0.620%
	Next $4 billion	0.950%	0.750%	0.950%	0.950%	0.950%	0.600%	0.750%	0.600%
	Next $4 billion	0.930%	0.730%	0.930%	0.930%	0.930%	0.580%	0.730%	0.580%
	Next $4 billion	0.910%	0.710%	0.910%	0.910%	0.910%	0.560%	0.710%	0.560%
	Next $5 billion	0.890%	0.690%	0.890%	0.890%	0.890%	0.540%	0.690%	0.540%
	Over $25 billion	0.800%	0.600%	0.800%	0.800%	0.800%	0.450%	0.600%	0.450%
Heritage Fund	All Assets	1.000%	0.800%	1.000%	1.000%	1.000%	0.650%	0.800%	0.650%
All Cap Growth Fund	All Assets	1.000%	0.800%	1.000%	1.000%	1.000%	n/a	n/a	n/a
New Opportunities Fund	First $250 million	1.500%	1.300%	1.500%	1.500%	1.500%	n/a	n/a	n/a
	Next $250 million	1.250%	1.050%	1.250%	1.250%	1.250%	n/a	n/a	n/a
	Next $250 million	1.150%	0.950%	1.150%	1.150%	1.150%	n/a	n/a	n/a
	Over $750 million	1.100%	0.900%	1.100%	1.100%	1.100%	n/a	n/a	n/a
Growth Fund	First $4 billion	0.990%	0.790%	0.990%	0.990%	0.990%	0.640%	0.790%	0.640%
	Next $4 billion	0.970%	0.770%	0.970%	0.970%	0.970%	0.620%	0.770%	0.620%
	Next $4 billion	0.950%	0.750%	0.950%	0.950%	0.950%	0.600%	0.750%	0.600%
	Next $4 billion	0.930%	0.730%	0.930%	0.930%	0.930%	0.580%	0.730%	0.580%
	Next $4 billion	0.910%	0.710%	0.910%	0.910%	0.910%	0.560%	0.710%	0.560%
	Next $5 billion	0.890%	0.690%	0.890%	0.890%	0.890%	0.540%	0.690%	0.540%
	Over $25 billion	0.800%	0.600%	0.800%	0.800%	0.800%	0.450%	0.600%	0.450%

A-1



Series	Investment Strategy Assets	Fee Schedule by Class
Series	Investment Strategy Assets	Investor	I	A	C	R	R6	R5	Y
Select Fund	First $4 billion	0.990%	0.790%	0.990%	0.990%	0.990%	0.640%	0.790%	0.640%
	Next $4 billion	0.970%	0.770%	0.970%	0.970%	0.970%	0.620%	0.770%	0.620%
	Next $4 billion	0.950%	0.750%	0.950%	0.950%	0.950%	0.600%	0.750%	0.600%
	Next $4 billion	0.930%	0.730%	0.930%	0.930%	0.930%	0.580%	0.730%	0.580%
	Next $4 billion	0.910%	0.710%	0.910%	0.910%	0.910%	0.560%	0.710%	0.560%
	Next $5 billion	0.890%	0.690%	0.890%	0.890%	0.890%	0.540%	0.690%	0.540%
	Over $25 billion	0.800%	0.600%	0.800%	0.800%	0.800%	0.450%	0.600%	0.450%
Small Cap Growth Fund	First $250 million	1.500%	1.300%	1.500%	1.500%	1.500%	1.150%	1.300%	1.150%
	Next $250 million	1.250%	1.050%	1.250%	1.250%	1.250%	0.900%	1.050%	0.900%
	Next $250 million	1.150%	0.950%	1.150%	1.150%	1.150%	0.800%	0.950%	0.800%
	Over $750 million	1.100%	0.900%	1.100%	1.100%	1.100%	0.750%	0.900%	0.750%
Adaptive Equity Fund	First $500 million	1.250%	1.050%	1.250%	n/a	1.250%	0.900%	n/a	n/a
(f/k/a Veedot Fund)	Next $500 million	1.100%	0.900%	1.100%	n/a	1.100%	0.750%	n/a	n/a
	Over $1 billion	1.000%	0.800%	1.000%	n/a	1.000%	0.650%	n/a	n/a
Balanced Fund	First $1 billion	0.900%	0.700%	n/a	n/a	n/a	n/a	0.700%	n/a
	Over $1 billion	0.800%	0.600%	n/a	n/a	n/a	n/a	0.600%	n/a
Capital Value Fund	First $500 million	1.100%	0.900%	1.100%	n/a	n/a	n/a	n/a	n/a
	Next $500 million	1.000%	0.800%	1.000%	n/a	n/a	n/a	n/a	n/a
	Over $1 billion	0.900%	0.700%	0.900%	n/a	n/a	n/a	n/a	n/a

A-2



Series	Investment Strategy Assets	Fee Schedule by Class
Series	Investment Strategy Assets	Investor	I	A	C	R	R6	R5	Y
Sustainable Equity Fund	First $4 billion	0.990%	0.790%	0.990%	0.990%	0.990%	n/a	0.790%	0.640%
(f/k/a Fundamental Equity Fund)	Next $4 billion	0.970%	0.770%	0.970%	0.970%	0.970%	n/a	0.770%	0.620%
	Next $4 billion	0.950%	0.750%	0.950%	0.950%	0.950%	n/a	0.750%	0.600%
	Next $4 billion	0.930%	0.730%	0.930%	0.930%	0.930%	n/a	0.730%	0.580%
	Next $4 billion	0.910%	0.710%	0.910%	0.910%	0.910%	n/a	0.710%	0.560%
	Next $5 billion	0.890%	0.690%	0.890%	0.890%	0.890%	n/a	0.690%	0.540%
	Over $25 billion	0.800%	0.600%	0.800%	0.800%	0.800%	n/a	0.600%	0.450%



Series	Investment Strategy Assets	Fee Schedule by Class
Series	Investment Strategy Assets	G
NT Growth Fund	First $4 billion	0.640%
	Next $4 billion	0.620%
	Next $4 billion	0.600%
	Next $4 billion	0.580%
	Next $4 billion	0.560%
	Next $5 billion	0.540%
	Over $25 billion	0.450%
NT Heritage Fund	All Assets	0.650%

A-3

AMENDED AND RESTATED DISTRIBUTION AGREEMENT

THIS AMENDED AND RESTATED DISTRIBUTION AGREEMENT (the “Agreement”) is amended and restated effective as of the 31 ^st day of July, 2017, by and between AMERICAN CENTURY MUTUAL FUNDS, INC ., a Maryland corporation (the “Issuer”), and AMERICAN CENTURY INVESTMENT SERVICES, INC., a Delaware corporation (“Distributor”).

WHEREAS , the Issuer is an investment company registered as such with the Securities and Exchange Commission (“SEC”) under the Investment Company Act of 1940 (the “1940 Act”), whose common stock is currently divided into a number of separate series of shares, each corresponding to a distinct portfolio of securities, and many of which are also divided into multiple classes of shares;

WHEREAS , Distributor is registered as a broker-dealer with the SEC under the Securities Exchange Act of 1934 and is a member of the Financial Industry Regulatory Authority (“FINRA”);

WHEREAS , the Issuer has entered into an investment management agreement with American Century Investment Management, Inc. (the “Advisor”) for the provision of investment advisory services by the Advisor to the Issuer;

WHEREAS , the Board of Directors of the Issuer (the “Board”) wishes to engage the Distributor to act as the distributor of the shares of each class of the Issuer’s separate series, and any other series and classes as may be designated from time to time hereafter (the “Funds”), in accordance with the terms of this Agreement;

WHEREAS , the Issuer has changed the name of the Institutional Class of common stock to G Class for the series of shares titled NT Growth Fund and NT Heritage Fund;

WHEREAS , the Issuer has eliminated the R6 Class for the series of shares titled NT Growth Fund and NT Heritage Fund; and

WHEREAS , the Issuer desires to amend this Agreement to reflect the aforementioned changes and there are no other changes to this Agreement.

NOW, THEREFORE , in consideration of the mutual promises set forth herein, the parties agree as follows:


Section 1.	General Responsibilities

Issuer hereby engages Distributor to act as exclusive distributor of the shares of each class of the Funds. The Funds subject to this Agreement as of the date hereof are identified on SCHEDULE A , which may be amended from time to time in accordance with Section 11 below. Sales of a Fund's shares shall be made only to investors residing in those states in which such Fund is registered. After effectiveness of each Fund’s registration statement, Distributor will hold itself available to receive, as agent for the Fund, and will receive by mail, telex, telephone, or such other method as may be agreed

upon between Distributor and Issuer, orders for the purchase of Fund shares, and will accept or reject such orders on behalf of the Fund in accordance with the provisions of the applicable Fund’s prospectus. Distributor will be available to transmit orders, as promptly as possible after it accepts such orders, to the Fund’s transfer agent for processing at the shares’ net asset value next determined in accordance with the prospectuses.

a. Offering Price. All shares sold by Distributor under this Agreement shall be sold at the offering price of such shares, consisting of the net asset value per share (“Net Asset Value”) plus any applicable load, determined in the manner described in each Fund’s prospectus, as it may be amended from time to time, next computed after the order is accepted by Distributor, or one or more of its affiliates or designees. Each Fund shall determine and promptly furnish to Distributor a statement of the Net Asset Value of each class of the Fund’s shares at least once each day that the Fund is open for business, as described in its current prospectus.

b. Promotion Support. Each Fund shall furnish to Distributor for use in connection with the sale of its shares such written information with respect to said Fund as Distributor may reasonably request. Each Fund represents and warrants that such information, when authenticated by the signature of one of its officers, shall be true and correct. Each Fund shall also furnish to Distributor copies of its reports to its shareholders and such additional information regarding said Fund’s financial condition as Distributor may reasonably request. Any and all representations, statements and solicitations respecting a Fund’s shares made in advertisements, sales literature, and in any other manner whatsoever shall be limited to and conform in all respects to the information provided hereunder.

c. Regulatory Compliance. Each Fund shall furnish to Distributor copies of its current form of prospectus, as filed with the SEC, in such quantity as Distributor may reasonably request from time to time, and authorize Distributor to use the prospectus in connection with the sale of such Fund's shares. All such sales shall be initiated by offer of, and conducted in accordance with, such prospectus and all of the provisions of the Securities Act of 1933, the 1940 Act and all the rules and regulations promulgated thereunder. Distributor shall furnish applicable federal and state regulatory authorities with any information or reports related to its services under this Agreement that such authorities may lawfully request in order to ascertain whether the Funds’ operations are being conducted in a manner consistent with any applicable law or regulations.

d. Acceptance. All orders for the purchase of its shares are subject to acceptance by each Fund.

Section 2. Compensation

a. Investor Class, I Class, Y Class, R5 Class, R6 Class, and G Class of Shares. Distributor shall not be entitled to compensation for its services hereunder with respect to the Investor Class, I Class, Y Class, R5 Class, R6 Class, and G Class of each Fund.

b. A Class, C Class, and R Class of Shares. With respect to each of the A Class, C Class, and R Class of each Fund, as applicable, the 12b-1 fees to which Distributor is entitled under each Master Distribution and Individual Shareholder

Services Plan for such classes (each a “12b-1 Plan”) shall be paid to the Advisor, as Distributor’s paying agent, for payment of Distributor’s contractual obligations to third party intermediaries for distribution of Fund shares.

Section 3. Expenses

a. Distributor, or one or more of its affiliates or designees, shall pay all expenses incurred by it in connection with the performance of its distribution duties hereunder and under the 12b-1 Plan for each applicable class offered by a Fund that is subject to a 12b-1 Plan (the “Class”), including, but not limited to (A) payment of asset-based sales charges, including commission, ongoing commissions and other payments to brokers, dealers, financial institutions or others who sell the Class shares pursuant to Selling Agreements; (B) compensation to registered representatives or other employees of Distributor who engage in or support distribution of the Class shares; (C) compensation to, and expenses (including overhead and telephone expenses) of, Distributor; (D) printing of prospectuses, statements of additional information and reports for other than existing shareholders; (E) preparation, printing and distribution of sales literature and advertising materials provided to the Fund’s shareholders and prospective shareholders; (F) receiving and answering correspondence from prospective shareholders, including distributing prospectuses, statements of additional information, and shareholder reports; (G) the provision of facilities to answer questions from prospective investors about Fund shares; (H) complying with federal and state securities laws pertaining to the sale of Fund shares; (I) assisting investors in completing application forms and selecting dividend and other account options; (J) the provision of other reasonable assistance in connection with the distribution of Fund shares; (K) organizing and conducting of sales seminars and payments in the form of transactional compensation or promotional incentives; (L) profit on the foregoing; (M) payment of “service fees”, as contemplated by the Rule 2830 of the FINRA Conduct Rules; and (N) such other distribution and services activities as the Issuer determines may be paid for by the Issuer pursuant to the terms of this Agreement and in accordance with Rule 12b-1 of the 1940 Act.

b. In addition to paying the above expenses with respect to each Class, Distributor, or one or more of its affiliates or designees, shall pay all expenses incurred with respect to the other classes of each Fund in connection with their registration under the Securities Act of 1933 and the 1940 Act, the qualification of such shares for sale in each jurisdiction designated by the appropriate Advisor, the issue and transfer of such shares (including the expenses of confirming purchase and redemption orders and of supplying the information, prices and other data to be furnished by the Funds under this Agreement), the registration of Distributor as a broker, and the registration and qualification of its officers, directors and representatives under applicable federal and state laws.

Section 4. Independent Contractor

Distributor shall be an independent contractor. Neither Distributor nor any of its officers, directors, employees or representatives is or shall be an employee of a Fund in connection with the performance of Distributor’s duties hereunder. Distributor shall be responsible for its own conduct and the employment, control, compensation and conduct of its agents and employees, and for any injury to such agents or employees or

to others through its agents and employees. Any obligations of Distributor hereunder may be performed by one or more of the Distributor’s affiliates or designees.


Section 5.	Affiliation with the Funds

Subject to and in accordance with each Fund’s formative documents and Section 10 of the 1940 Act, it is understood: that the directors, officers, agents and shareholders of the Funds are or may be interested in Distributor as directors, officers, or shareholders of Distributor; that directors, officers, agents or shareholders of Distributor are or may be interested in the Funds as directors, officers, shareholders (directly or indirectly) or otherwise; and that the effect of any such interest shall be governed by the 1940 Act and Section 4 of this Agreement.


Section 6.	Books and Records

The parties hereto understand and agree that all documents, reports, records, books, files and other materials (“Fund Records”) relating to this Agreement and the services to be performed hereunder shall be the sole property of the Funds and that such property, to the extent held by Distributor, shall be held by Distributor as agent during the effective term of this Agreement. All Fund Records shall be delivered to the applicable Fund upon the termination of this Agreement, free from any claim or retention of rights by Distributor.


Section 7.	Services Not Exclusive

The services of Distributor to the Funds hereunder are not to be deemed exclusive, and Distributor shall be free to render similar services to others.


Section 8.	Renewal and Termination

a. Term and Annual Renewal. The term of this Agreement shall be from the date of its approval by the vote of a majority of the Board of each Issuer, and it shall continue in effect from year to year thereafter only so long as such continuance is specifically approved at least annually by the vote of a majority of its Board, and the vote of a majority of those members of the Board who are neither parties to the Agreement nor interested persons of any such party, cast at a meeting called for the purpose of voting on such approval. “Approved at least annually” shall mean approval occurring, with respect to the first continuance of the Agreement, during the 90 days prior to and including the date of its termination in the absence of such approval, and with respect to any subsequent continuance, during the 90 days prior to and including the first anniversary of the date upon which the most recent previous annual continuance of the Agreement became effective. The effective date of the Agreement with respect to each Fund is identified in the Schedule A of this Agreement.

b. Termination. This Agreement may be terminated at any time, without payment of any penalty, by the Board upon 60 days' written notice to Distributor, and by Distributor upon 60 days' written notice to the Issuer. This Agreement shall terminate automatically in the event of its assignment. The term “assignment” shall have the meaning set forth for such term in Section 2(a)(4) of the 1940 Act.

Section 9. Severability

If any provision of this Agreement shall be held or made invalid by a court decision, statute, rule or similar authority, the remainder of this Agreement shall not be affected thereby.


Section 10.	Applicable Law

This Agreement shall be construed in accordance with the laws of the State of Missouri.


Section 11.	Amendment

This Agreement and SCHEDULE A forming a part hereof may be amended at any time by a writing signed by each of the parties hereto. In the event that the Board indicates by resolution that Distributor is to serve as the distributor of a new series of shares of the Issuer (a “New Fund”) pursuant to the terms of this Agreement, whether such New Fund was in existence at the time of the effective date of this Agreement or subsequently formed, SCHEDULE A hereto shall be amended to reflect the addition of such New Fund and the distribution of the shares of such New Fund shall thereafter be covered by the terms of this Agreement. In the event that such New Fund issues multiple classes of shares, SCHEDULE A hereto shall be amended, as appropriate, to reflect the addition of each such class of the New Fund’s shares. In the event that any of the Funds listed on SCHEDULE A terminates its registration as an investment company, or otherwise ceases operations, SCHEDULE A shall be amended to reflect the deletion of such Fund and all of its classes.

[Remainder of page intentionally left blank; signature page to follow.]

AMERICAN CENTURY INVESTMENT SERVICES, INC.

By: /s/ Richard T. Luchinsky

Richard T. Luchinsky

Senior Vice President

AMERICAN CENTURY MUTUAL FUNDS, INC.

By: /s/ Charles A. Etherington

Charles A. Etherington

Senior Vice President

SCHEDULE A

Funds and Classes Covered by this Distribution Agreement

AMERICAN CENTURY MUTUAL FUNDS, INC.

Investor Class Funds Date Class Added to Agreement

Balanced Fund March 13, 2000

Growth Fund March 13, 2000

Heritage Fund March 13, 2000

Select Fund March 13, 2000

Ultra Fund March 13, 2000

All Cap Growth Fund March 13, 2000

New Opportunities Fund March 13, 2000

Capital Value Fund March 13, 2000

Adaptive Equity Fund March 13, 2000

Small Cap Growth Fund May 1, 2001

Sustainable Equity Fund July 29, 2005

G Class Funds

NT Heritage Fund April 28, 2006 *

NT Growth Fund April 28, 2006 *

I Class Funds

Balanced Fund March 13, 2000

Growth Fund March 13, 2000

Heritage Fund March 13, 2000

Select Fund March 13, 2000

Ultra Fund March 13, 2000

Capital Value Fund March 13, 2000

Adaptive Equity Fund March 13, 2000

Small Cap Growth Fund May 1, 2001

Sustainable Equity Fund July 29, 2005

New Opportunities Fund March 1, 2010

All Cap Growth Fund September 30, 2011

Y Class Funds

Growth Fund April 10, 2017

Heritage Fund April 10, 2017

Select Fund April 10, 2017

Small Cap Growth Fund April 10, 2017

Sustainable Equity Fund April 10, 2017

Ultra Fund April 10, 2017

A Class Funds

Growth Fund March 13, 2000

Capital Value Fund March 13, 2000

Select Fund March 13, 2000

Page A-1

A Class Funds (cont’d) Date Class Added to Agreement

Small Cap Growth Fund September 3, 2002

Sustainable Equity Fund November 17, 2004

Heritage Fund March 13, 2000

Ultra Fund March 13, 2000

New Opportunities Fund March 1, 2010

All Cap Growth Fund September 30, 2011

Adaptive Equity Fund December 1, 2016

C Class Funds

Ultra Fund May 1, 2001

Heritage Fund May 1, 2001

Small Cap Growth Fund September 3, 2007

Select Fund September 3, 2002

Sustainable Equity Fund November 17, 2004

Growth Fund March 1, 2010

New Opportunities Fund March 1, 2010

All Cap Growth Fund September 30, 2011

R Class Funds

Growth Fund August 29, 2003

Ultra Fund August 29, 2003

Select Fund July 29, 2005

Sustainable Equity Fund July 29, 2005

Heritage Fund September 27, 2007

Small Cap Growth Fund September 27, 2007

New Opportunities Fund March 1, 2010

All Cap Growth Fund September 30, 2011

Adaptive Equity Fund December 1, 2016

R5 Class Funds

Balanced Fund April 10, 2017

Growth Fund April 10, 2017

Heritage Fund April 10, 2017

Select Fund April 10, 2017

Small Cap Growth Fund April 10, 2017

Sustainable Equity Fund April 10, 2017

Ultra Fund April 10, 2017

R6 Class Funds

Growth Fund July 26, 2013

Ultra Fund July 26, 2013

Select Fund July 26, 2013

Heritage Fund July 26, 2013

Small Cap Growth Fund July 26, 2013

Adaptive Equity Fund December 1, 2016

* Originally Institutional Class became G Class on July 31, 2017.

Page A-2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Post-Effective Amendment No. 153 to Registration Statement No. 002-14213 on Form N-1A of our reports dated December 15, 2017, relating to the financial statements and financial highlights of Adaptive Equity Fund, All Cap Growth Fund, Balanced Fund, Capital Value Fund, Growth Fund, Heritage Fund, NT Growth Fund, NT Heritage Fund, Select Fund, Small Cap Growth Fund, Sustainable Equity Fund, and Ultra ^® Fund, each a series of American Century Mutual Funds, Inc., appearing in the Annual Report on Form N-CSR of American Century Mutual Funds, Inc. for the year ended October 31, 2017, and to the references to us under the headings “Financial Highlights” in each of the Prospectuses and “Independent Registered Public Accounting Firm” and “Financial Statements” in the Statement of Additional Information, which are part of such Registration Statement.

/s/ Deloitte & Touche LLP

Kansas City, Missouri

February 26, 2018

AMENDED AND RESTATED MULTIPLE CLASS PLAN

AMERICAN CENTURY MUTUAL FUNDS, INC.

WHEREAS , the above-named corporation (the “Issuer”) is an open-end management investment company registered under the Investment Company Act of 1940, as amended (the “1940 Act”);

WHEREAS , the common stock of the Issuer is currently allocated to various classes of separate series of shares;

WHEREAS , Rule 18f-3 requires that the Board of Directors of the Issuer (the “Board”), adopt a written plan (a “Multiple Class Plan”) setting forth (1) the specific arrangement for shareholder services and the distribution of securities for each class, (2) the allocation of expenses for each class, and (3) any related conversion features or exchange privileges;

WHEREAS , the Issuer has offered multiple classes of certain series of the Issuer’s shares pursuant to Rule 18f-3 under the 1940 Act since the Board initially adopted the original Multiple Class Plan;

WHEREAS , the Board, including a majority of those Directors who are not “interested persons” as defined in the 1940 Act (“Independent Directors”), has determined this Amended and Restated Multiple Class Plan (this “Plan”), adopted pursuant to Rule 18f-3 under the 1940 Act, is in the best interests of the shareholders of each class individually and the Issuer as a whole;

WHEREAS , the Issuer has changed the name of the Institutional Class of common stock to G Class for the series of shares titled NT Growth Fund and NT Heritage Fund;

WHEREAS , the Issuer has eliminated the R6 Class for the series of shares titled NT Growth Fund and NT Heritage Fund; and

WHEREAS , the Issuer desires to amend this Plan to reflect the aforementioned changes and there are no other changes to this Plan.

NOW, THEREFORE , the Issuer hereby amends and restates, on behalf of the Funds (as defined in Section 2a below), this Plan, in accordance with Rule 18f-3 under the 1940 Act on the following terms and conditions:

Section 1. Establishment of Plan

As required by Rule 18f-3 under the 1940 Act, this Plan describes the multiple class system for certain series of shares of the Issuer, including the separate class arrangements for shareholder services and/or distribution of shares, the method for allocating expenses

to classes and any related conversion features or exchange privileges applicable to the classes. Upon the initial effective date of this Plan, the Issuer began offering multiple classes of shares of its capital stock, as described herein, pursuant to Rule 18f-3 and this Plan.

Section 2. Features of the Classes

Division into Classes . Each series of shares of the Issuers identified in SCHEDULE A attached hereto, and each series of shares of any Issuer subsequently added to this Plan (collectively, the “Funds”), may offer one or more of the following classes of shares: Investor Class, I Class, Y Class, A Class, C Class, R Class, R5 Class, R6 Class, and G Class. The classes that each Fund is authorized to issue pursuant to this Plan are set forth in SCHEDULE A . Shares of each class of a Fund shall represent an equal pro rata interest in such Fund, and generally, shall have identical voting, dividend, liquidation and other rights, preferences, powers, restrictions, limitations, qualifications, and terms and conditions, except that each class of shares shall: (A) have a different designation; (B) bear any Class Expenses, as defined in Section 3d(3) below; (C) have exclusive voting rights on any matter submitted to shareholders that relates solely to its service arrangement; and (D) have separate voting rights on any matter submitted to shareholders in which the interests of one class differ from the interests of any other class.

b. Management Fees .

(1) Investor Class Unified Fee . The Issuer is a party to a management agreement (the “Management Agreement”) with American Century Investment Management, Inc., a registered investment adviser (the “Advisor”), for the provision of investment advisory and management services in exchange for a single, unified fee, as set forth on SCHEDULE A and as described in the Fund’s current Investor Class prospectus or prospectus supplement.

(2) I Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue I Class shares, the Management Agreement provides for a unified fee of 20 basis points less than the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current Investor Class prospectus or prospectus supplement. I Class shares are available to large institutional shareholders, such as corporations, endowments, foundations, 529 plans, and other pooled accounts, and individual shareholders that meet certain investment minimums established from time to time by the Advisor. These minimums may be waived or lowered in certain situations as deemed appropriate by the Advisor. I Class shares are not eligible for purchase by insurance companies, except in connection with a product for defined benefit plans not involving a group annuity contract.

(3) Y Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue Y Class shares, the Management Agreement provides for a unified fee of 35 basis points less than the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current

Investor Class prospectus or prospectus supplement. Y Class shares are available primarily for investors utilizing financial advisors and other financial intermediaries that offer fee-based advisory programs.

(4) A Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue A Class shares, the Management Agreement provides for a unified fee equal to the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current Investor Class prospectus or prospectus supplement. The A Class is intended to be sold to and through broker-dealers, banks and other financial intermediaries.

(5) C Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue C Class shares, the Management Agreement provides for a unified fee equal to the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current Investor Class prospectus or prospectus supplement. The C Class is intended to be sold to and through broker-dealers, banks and other financial intermediaries.

(6) R Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue R Class shares, the Management Agreement provides for a unified fee equal to the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current Investor Class prospectus or prospectus supplement. The R Class is intended to be sold to employer-sponsored retirement plans (including participant directed plans), insurance companies, broker-dealers, banks and other financial intermediaries.

(7) R5 Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue R5 Class shares, the Management Agreement provides for a unified fee of 20 basis points less than the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current Investor Class prospectus or prospectus supplement. R5 Class shares are available primarily for employer-sponsored retirement plans and other institutional investors that meet certain eligibility requirements established from time to time by the Advisor.

(8) R6 Class Unified Fee . For each Fund listed on SCHEDULE A as being authorized to issue R6 Class shares, the Management Agreement provides for a unified fee of 35 basis points less than the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current Investor Class prospectus or prospectus supplement. R6 Class shares are available primarily for employer-sponsored retirement plans and other institutional investors that meet certain eligibility requirements established from time to time by the Advisor.

(9) G Class Unified Fee. For each Fund listed on SCHEDULE A as being authorized to issue G Class shares, the Management Agreement provides for a unified fee of 35 basis points less than the existing unified fee in place for the corresponding Investor Class of such Fund, as described in the Fund’s current

Investor Class prospectus or prospectus supplement. G Class shares are available for purchase only by funds advised by American Century Investments and other American Century advisory clients that are subject to a contractual fee for investment management services. G Class shares do not have a minimum purchase amount.

c. Shareholder Services and Distribution Services .

(1) A Class Distribution Plan . Shares of the A Class of each Fund are offered subject to an A Class Master Distribution and Individual Shareholder Services Plan pursuant to Rule 12b-1 under the 1940 Act (the “A Class Plan”) adopted by the Issuer effective September 3, 2002. A Class shares of each Fund shall pay the Advisor, as paying agent for the Fund, for the expenses of individual shareholder services and distribution expenses incurred in connection with providing such services for shares of the Fund, as provided in the A Class Plan, at an aggregate annual rate of .25% of the average daily net assets of such class.

(2) C Class Distribution Plan . Shares of the C Class of each Fund are offered subject to a C Class Master Distribution and Individual Shareholder Services Plan pursuant to Rule 12b-1 under the 1940 Act (the “C Class Plan”) adopted by the Issuer effective May 1, 2001. C Class shares of each Fund shall pay the Advisor, as paying agent for the Fund, for the expenses of individual shareholder services and distribution expenses incurred in connection with providing such services for shares of the Fund, as provided in the C Class Plan, at an aggregate annual rate of 1.00% of the average daily net assets of such class (.75% for distribution expenses and .25% for individual shareholder services).

(3) R Class Distribution Plan . Shares of the R Class of each Fund are offered subject to an R Class Master Distribution and Individual Shareholder Services Plan pursuant to Rule 12b-1 under the 1940 Act (the “R Class Plan”) adopted by the Issuer effective August 29, 2003. R Class shares of each Fund shall pay the Advisor, as paying agent for the Fund, for the expenses of individual shareholder services and distribution expenses incurred in connection with providing such services for shares of the Fund, as provided in the R Class Plan, at an aggregate annual rate of .50% of the average daily net assets of such class.

(4) Definition of Services . Under the A, C and R Class Plans (collectively the “12b-1 Plans”), “distribution expenses” include, but are not limited to, expenses incurred in connection with (A) payment of sales commission, ongoing commissions and other payments to brokers, dealers, financial institutions or others who sell shares of the relevant class pursuant to Selling Agreements; (B) compensation to employees of Distributor who engage in or support distribution of the shares of the relevant class; (C) compensation to, and expenses (including overhead and telephone expenses) of, Distributor; (D) the printing of prospectuses, statements of additional information and reports for other than existing shareholders; (E) the preparation, printing and distribution of sales literature and advertising materials provided to the Funds’ shareholders and prospective shareholders; (F) receiving and answering correspondence from prospective

shareholders, including distributing prospectuses, statements of additional information, and shareholder reports; (G) the provision of facilities to answer questions from prospective investors about Fund shares; (H) complying with federal and state securities laws pertaining to the sale of Fund shares; (I) assisting investors in completing application forms and selecting dividend and other account options; (J) the provision of other reasonable assistance in connection with the distribution of Fund shares; (K) the organizing and conducting of sales seminars and payments in the form of transactional compensation or promotional incentives; (L) profit on the foregoing; and (M) such other distribution and services activities as the Issuer determines may be paid for by the Issuer pursuant to the terms of this Agreement and in accordance with Rule 12b-1 of the 1940 Act; provided that if the Securities and Exchanges Commission determines that any of the foregoing services are not permissible under Rule 12b-1, any payments for such activities will automatically cease.

“Individual shareholder services” are those activities for which services fees may be paid as contemplated by the Conduct Rules of the Financial Industry Regulatory Authority (“FINRA”), and may include, but are not limited to: (A) individualized and customized investment advisory services, including the consideration of shareholder profiles and specific goals; (B) the creation of investment models and asset allocation models for use by the shareholder in selecting appropriate Funds; (C) proprietary research about investment choices and the market in general; (D) periodic rebalancing of shareholder accounts to ensure compliance with the selected asset allocation; (E) consolidation of shareholder accounts in one place; and (F) other individual services; provided that if FINRA determines that any of the foregoing activities are not permissible, any payment for such activities will automatically cease.

d. Additional Features .

(1) Front-end Loads . A Class shares shall be subject to a front-end sales charge in the circumstances and pursuant to the schedules set forth in each Fund’s then-current prospectus.

(2) Contingent Deferred Sales Charges . A and C Class shares shall be subject to a contingent deferred sales charge in the circumstances and pursuant to the schedules as set forth in each Fund’s then-current prospectus.

Section 3. Allocation of Income and Expenses

Daily Dividend Funds . Funds that declare distributions of net investment income daily to maintain the same net asset value per share in each class (“Daily Dividend Funds”) will allocate gross income and expenses (other than Class Expenses, as defined below) to each class on the basis of “relative net assets (settled shares)”. Realized and unrealized capital gains and losses will be allocated to each class on the basis of relative net assets. “Relative net assets (settled shares),” for this purpose, are net assets valued in accordance with generally accepted accounting principles but excluding the value of subscriptions

receivable, in relation to the net assets of the particular Daily Dividend Fund. Expenses to be so allocated include Issuer Expenses and Fund Expenses, each as defined below.


b.	Non-Daily Dividend Funds . The gross income, realized and unrealized capital gains and losses and expenses (other than Class Expenses) of each Fund, other than the Daily Dividend Funds, shall be allocated to each class on the basis of its net asset value relative to the net asset value of the Fund. Expenses to be so allocated also include Issuer Expenses and Fund Expenses.

Apportionment of Certain Expenses . Expenses of a Fund shall be apportioned to each class of shares depending on the nature of the expense item. Issuer Expenses and Fund Expenses will be allocated among the classes of shares pro rata based on their relative net asset values in relation to the net asset value of all outstanding shares in the Fund. Approved Class Expenses shall be allocated to the particular class to which they are attributable. In addition, certain expenses may be allocated differently if their method of imposition changes. Thus, if a Class Expense can no longer be attributed to a class, it shall be charged to a Fund for allocation among classes, as determined by the Advisor.

d. Definitions .

(1) Issuer Expenses . “Issuer Expenses” include expenses of the Issuer that are not attributable to a particular Fund or class of a Fund. Issuer Expenses include fees and expenses of those Independent Directors, including counsel fees for the Independent Directors, and certain extraordinary expenses of the Issuer that are not attributable to a particular Fund or class of a Fund.

(2) Fund Expenses . “Fund Expenses” include expenses of the Issuer that are attributable to a particular fund but are not attributable to a particular class of the Fund. Fund Expenses include (i) interest expenses, (ii) taxes, (iii) brokerage expenses, and (iv) certain extraordinary expenses of a Fund that are not attributable to a particular class of a Fund.

(3) Class Expenses . “Class Expenses” are expenses that are attributable to a particular class of a Fund and shall be limited to: (i) applicable unified fee; (ii) payments made pursuant to the 12b-1 Plan of each applicable Class; and (iii) certain extraordinary expenses of an Issuer or Fund that are attributable to a particular class of a Fund.

(4) Extraordinary Expenses . “Extraordinary expenses” shall be allocated as an Issuer Expense, a Fund Expense or a Class Expense in such manner and utilizing such methodology as the Advisor shall reasonably determine, which determination shall be subject to ratification or approval of the Board and shall be consistent with applicable legal principles and requirements under the 1940 Act and the Internal Revenue Code, as amended. The Advisor shall report to the Board quarterly regarding those extraordinary expenses that have been allocated

as Class Expenses. Any such allocations shall be reviewed by, and subject to the approval of, the Board.

Section 4. Exchange Privileges

Subject to the restrictions and conditions set forth in the Funds’ prospectuses, shareholders may exchange shares of one class of a Fund for shares of the same class of another Fund, provided that the amount to be exchanged meets the applicable minimum investment requirements and the shares to be acquired in the exchange are qualified for sale in the stockholder's state of residence.

Section 5. Conversion Features

Conversions from one class of a Fund’s shares into another class of shares are not permitted; provided , however , that if a shareholder of a particular class is no longer eligible to own shares of that class, upon prior notice to such shareholder, those shares will be converted to shares of the same Fund but of another class in which such shareholder is eligible to invest. Similarly, if a shareholder becomes eligible to invest in shares of another class that has lower expenses than the class in which such shareholder is invested, such shareholder may be eligible to convert into shares of the same Fund but of the class with the lower expenses.

Section 6. Quarterly and Annual Reports

The Board shall receive quarterly and annual reports concerning all allocated Class Expenses and distribution and servicing expenditures complying with paragraph (b)(3)(ii) of Rule 12b-1, as it may be amended from time to time. In the reports, only expenditures properly attributable to the sale or servicing of a particular class of shares will be used to justify any distribution or servicing fee or other expenses charged to that class. Expenditures not related to the sale or servicing of a particular class shall not be presented to the Board to justify any fee attributable to that class. The reports, including the allocations upon which they are based, shall be subject to the review and approval of the Independent Directors of the Issuer who have no direct or indirect financial interest in the operation of this Plan in the exercise of their fiduciary duties.

Section 7. Waiver or Reimbursement of Expenses

Expenses may be waived or reimbursed by any adviser to the Issuer, by the Issuer’s underwriter or by any other provider of services to the Issuer without the prior approval of the Board, provided that the fee is waived or reimbursed to all shares of a particular Fund in proportion to their relative average daily net asset values.

Section 8. Effectiveness of Plan

Upon receipt of approval by votes of a majority of both (a) the Board and (b) the Independent Directors, this Plan which was originally effective September 3, 1996, shall be amended and restated as of July 31, 2017.

Section 9. Material Modifications

This Plan may not be amended to modify materially its terms unless such amendment is approved a majority of both (a) the Board and (b) the Independent Directors; provided ; however ; that a new Fund may be added, or an existing Fund deleted, by the Issuer upon approval by the Issuer’s Board by executing an amendment with a revised Schedule A to this Plan.

[Remainder of page intentionally left blank; signature page to follow.]

IN WITNESS WHEREOF , the Issuer has amended and restated this Plan effective as of July 31, 2017.



	AMERICAN CENTURY MUTUAL FUNDS, INC.
	By: /s/ Charles A. Etherington
	Charles A. Etherington
	Senior Vice President

SCHEDULE A

Series Covered by this Multiclass Plan



	Investor Class	I Class	Y Class	A Class	C Class	G Class	R Class	R5 Class	R6 Class
AMERICAN CENTURY MUTUAL FUNDS, INC.
Ø Balanced Fund	Yes	Yes	No	No	No	No	No	Yes	No
Ø Growth Fund	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes
Ø Heritage Fund	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes
Ø Select Fund	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes
Ø Ultra Fund	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes
Ø Adaptive Equity Fund	Yes	Yes	No	Yes	No	No	Yes	No	Yes
Ø All Cap Growth Fund	Yes	Yes	No	Yes	Yes	No	Yes	No	No
Ø New Opportunities Fund	Yes	Yes	No	Yes	Yes	No	Yes	No	No
Ø Capital Value Fund	Yes	Yes	No	Yes	No	No	No	No	No
Ø Small Cap Growth Fund	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes
Ø Sustainable Equity Fund	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No
Ø NT Growth Fund	No	No	No	No	No	Yes	No	No	No
Ø NT Heritage Fund	No	No	No	No	No	Yes	No	No	No

Page A-1