BLACKROCK FUNDS (Form: 485BPOS, Received: 01/27/2017 12:34:02)

As filed with the Securities and Exchange Commission on January 27, 2017

Securities Act File No. 33-26305

Investment Company Act File No. 811-05742

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

☒

Pre-Effective Amendment No.

□

Post-Effective Amendment No. 663

☒

and/or

REGISTRATION STATEMENT UNDER THE

INVESTMENT COMPANY ACT OF 1940

☒

Amendment No. 665

☒

(Check appropriate box or boxes)

BLACKROCK FUNDS ^SM

(Exact Name of Registrant as Specified in Charter)

100 Bellevue Parkway, Wilmington, Delaware 19809
United States of America

(Address of Principal Executive Offices)

Registrant’s Telephone Number, including Area Code: (800) 441-7762

John M. Perlowski

BLACKROCK FUNDS ^SM
55 East 52nd Street

New York, New York 10055
United States of America

(Name and Address of Agent for Service)

Copies to:

Counsel for the Fund:
Frank P. Bruno, Esq. Sidley Austin LLP 787 Seventh Avenue New York, New York 10019--6018	Benjamin Archibald, Esq. BlackRock Advisors, LLC 55 East 52nd Street New York, New York 10055

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

☒ Immediately upon filing pursuant to paragraph (b)

□ On (date) 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.
Title of Securities Being Registered: Shares of beneficial interest, par value $.001 per share.

JANUARY 27, 2017

Prospectus

BlackRock Funds ^SM | Investor, Institutional and Class R Shares

►	BlackRock Mid-Cap Growth Equity Portfolio
	Investor A: BMGAX • Investor B: BMGBX • Investor C: BMGCX • Institutional: CMGIX • Class R: BMRRX

►	BlackRock Advantage Small Cap Growth Fund

Investor A: CSGEX • Investor C: CGICX • Institutional: PSGIX

This Prospectus contains information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference.

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.

Not FDIC Insured • May Lose Value • No Bank Guarantee

Table of Contents

Fund Overview	Key facts and details about the Funds listed in this prospectus, including investment objectives, principal investment strategies, principal risk factors, fee and expense information and historical performance information
	Key Facts About BlackRock Mid-Cap Growth Equity Portfolio	3
	Key Facts About BlackRock Advantage Small Cap Growth Fund	10

Details About the Funds	Information about how the Funds invest, including investment objectives, investment processes, principal strategies and risk factors
	How Each Fund Invests	16
	Investment Risks	18

Account Information	Information about account services, sales charges and waivers, shareholder transactions, and distribution and other payments
	How to Choose the Share Class that Best Suits Your Needs	25
	Details About the Share Classes	29
	Distribution and Shareholder Servicing Payments	34
	How to Buy, Sell, Exchange and Transfer Shares	35
	Account Services and Privileges	40
	Funds’ Rights	41
	Participation in Fee-Based Programs	42
	Short-Term Trading Policy	42

Management of the Funds	Information about BlackRock and the Portfolio Managers
	BlackRock	44
	Portfolio Manager Information	46
	Conflicts of Interest	47
	Valuation of Fund Investments	48
	Dividends, Distributions and Taxes	49

Financial Highlights	Financial Performance of the Funds	51

General Information	Shareholder Documents	59
	Certain Fund Policies	59
	Statement of Additional Information	60

Glossary	Glossary of Investment Terms	61

For More Information	Funds and Service Providers	Inside Back Cover
	Additional Information	Back Cover

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Fund Overview

Key Facts About BlackRock Mid-Cap Growth Equity Portfolio

Investment Objective

The investment objective of BlackRock Mid-Cap Growth Equity Portfolio (“Mid-Cap Growth Equity” or the “Fund”), a series of BlackRock Funds ^SM (the “Trust”), is long-term capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that 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 $25,000 in the fund complex advised by BlackRock Advisors, LLC (“BlackRock”) and its affiliates. More information about these and other discounts is available from your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock, The PNC Financial Services Group, Inc. and their respective affiliates) (each a “Financial Intermediary”) and in the “Details About the Share Classes” section on page 29 of the Fund’s prospectus and in the “Purchase of Shares” section on page II-70 of Part II of the Fund’s statement of additional information.

Shareholder Fees (fees paid directly from your investment)	Investor A Shares	Investor B Shares	Investor C Shares	Institutional Shares	Class R Shares
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.25%	None	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of offering price or redemption proceeds, whichever is lower)	None ¹	4.50% ²	1.00% ³	None	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)	Investor A Shares	Investor B Shares	Investor C Shares	Institutional Shares	Class R Shares
Management Fee ⁴	0.80%	0.80%	0.80%	0.80%	0.80%
Distribution and/or Service (12b-1) Fees	0.25%	1.00%	1.00%	None	0.50%
Other Expenses	0.40%	1.40%	0.34%	0.31%	0.48%
Total Annual Fund Operating Expenses	1.45%	3.20%	2.14%	1.11%	1.78%
Fee Waivers and/or Expense Reimbursements ^4,5	(0.06)%	(1.04)%	—	—	(0.13)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements ^4,5	1.39%	2.16%	2.14%	1.11%	1.65%

¹	A contingent deferred sales charge (“CDSC”) of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at time of purchase as part of an investment of $1,000,000 or more.
²	The CDSC is 4.50% if shares are redeemed in less than one year. The CDSC for Investor B Shares decreases for redemptions made in subsequent years. After six years there is no CDSC on Investor B Shares. (See the section “Details About the Share Classes — Investor B Shares” in the Fund’s prospectus for the complete schedule of CDSCs.)
³	There is no CDSC on Investor C Shares after one year.

⁴

As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 44, BlackRock has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

⁵

As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 44, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) as a percentage of average daily net assets to 1.39% (for Investor A Shares), 2.16% (for Investor B and Investor C Shares), 1.11% (for Institutional Shares) and 1.65% (for Class R Shares) through January 31, 2018. The Fund may have to repay some of these waivers and/or reimbursements to BlackRock in the following two years. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

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Example:

This Example is intended to help you compare the cost of investing in the Fund with the cost 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. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. 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 A Shares	$659	$ 954	$1,270	$2,164
Investor B Shares	$669	$1,239	$1,784	$3,023
Investor C Shares	$317	$ 670	$1,149	$2,472
Institutional Shares	$113	$ 353	$ 612	$1,352
Class R Shares	$168	$ 548	$ 952	$2,084

You would pay the following expenses if you did not redeem your shares:

	1 Year	3 Years	5 Years	10 Years
Investor B Shares	$219	$889	$1,584	$3,023
Investor C Shares	$217	$670	$1,149	$2,472

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 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 81% of the average value of its portfolio.

Principal Investment Strategies of the Fund

Mid-Cap Growth Equity normally invests at least 80% of its net assets in equity securities issued by U.S. mid-capitalization companies which Fund management believes have above-average earnings growth potential. Equity securities consist primarily of common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock. Although a universal definition of mid-capitalization companies does not exist, the Fund generally defines these companies, at the time of the Fund’s investment, as those with market capitalizations comparable in size to the companies in the Russell Midcap ^® Growth Index (between approximately $1.978 billion and $26.284 billion as of May 27, 2016). In the future, the Fund may define mid-capitalization companies using a different index or classification system. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

The Fund may, when consistent with the Fund’s investment objective, buy or sell options or futures on a security or an index of securities (commonly known as derivatives). The primary purpose of using derivatives is to attempt to reduce risk to the Fund as a whole (hedge), but they may also be used to maintain liquidity and commit cash pending investment. Fund management also may, but under normal market conditions generally does not intend to, use derivatives for speculation to increase returns.

Principal Risks of Investing in the Fund

Risk is inherent in all investing. The value of your investment in Mid-Cap Growth Equity, as well as the amount of return you receive on your investment, may fluctuate significantly from day to day and over time. You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. The following is a summary description of the principal risks of investing in the Fund.

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creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks that apply to the underlying common stock.

■	Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
	Volatility Risk — Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
	Counterparty Risk — Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.
	Market and Liquidity Risk — The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately.
	Valuation Risk — Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them.

Hedging Risk — Hedges are sometimes subject to imperfect matching between the derivative and the underlying security, and there can be no assurance that the Fund’s hedging transactions will be effective. The use of hedging may result in certain adverse tax consequences.

Leverage Risk — Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund.

Tax Risk — Certain aspects of the tax treatment of derivative instruments, including swap agreements and commodity-linked derivative instruments, are currently unclear and may be affected by changes in legislation, regulations or other legally binding authority. Such treatment may be less favorable than that given to a direct investment in an underlying asset and may adversely affect the timing, character and amount of income the Fund realizes from its investments.

Regulatory Risk — Derivative contracts, including, without limitation, swaps, currency forwards and non-deliverable forwards, are subject to regulation under the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) in the United States and under comparable regimes in Europe, Asia and other non-U.S. jurisdictions. Under the Dodd-Frank Act, certain derivatives will become subject to margin requirements and swap dealers will be required to collect margin from the Fund with respect to such derivatives. Implementation of such regulations under the Dodd-Frank Act regarding clearing, mandatory trading and margining of swaps and other derivatives may increase the costs to the Fund of trading in these instruments and, as a result, may affect returns to investors in the Fund. In December 2015, the Securities and Exchange Commission proposed a new rule to regulate the use of derivatives by registered investment companies, such as the Fund. If the rule goes into effect, it could limit the ability of the Fund to invest or remain invested in derivatives.

■	Equity Securities Risk — Stock markets are volatile. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions.
■	Investment Style Risk — Under certain market conditions, growth investments have performed better during the later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles.
■	Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
■	Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
■	Mid Cap Securities Risk — The securities of mid cap companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies.

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“New Issues” Risk — “New issues” are IPOs of equity securities. Securities issued in IPOs have no trading history, and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may be highly volatile or may decline shortly after the IPO.

■

Preferred Securities Risk — Preferred securities may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company’s preferred securities generally pay dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred stock of larger companies.

Performance Information

The information shows you how Mid-Cap Growth Equity’s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to that of the Russell Midcap ^® Growth Index. To the extent that dividends and distributions have been paid by the Fund, the performance information of the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. Updated information on the Fund’s performance, including its current net asset value, can be obtained by visiting http://www.blackrock.com/funds or can be obtained by phone at (800) 882-0052.

Investor A Shares

ANNUAL TOTAL RETURNS ¹

BlackRock Mid-Cap Growth Equity Portfolio
As of 12/31

During the ten-year period shown in the bar chart, the highest return for a quarter was 20.97% (quarter ended June 30, 2009) and the lowest return for a quarter was -28.87% (quarter ended December 31, 2008).

As of 12/31/16 Average Annual Total Returns	1 Year	5 Years	10 Years ¹
BlackRock Mid-Cap Growth Equity Portfolio — Investor A Shares
Return Before Taxes	(2.61)%	12.31%	6.58%
Return After Taxes on Distributions	(2.61)%	10.23%	5.59%
Return After Taxes on Distributions and Sale of Fund Shares	(1.48)%	9.25%	5.03%
BlackRock Mid-Cap Growth Equity Portfolio — Investor B Shares
Return Before Taxes	(2.58)%	12.38%	6.50%
BlackRock Mid-Cap Growth Equity Portfolio — Investor C Shares
Return Before Taxes	1.02%	12.66%	6.35%
BlackRock Mid-Cap Growth Equity Portfolio — Institutional Shares
Return Before Taxes	3.04%	13.85%	7.54%
BlackRock Mid-Cap Growth Equity Portfolio — Class R Shares
Return Before Taxes	2.47%	13.22%	6.98%

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As of 12/31/16 Average Annual Total Returns	1 Year	5 Years	10 Years ¹
Russell Midcap ^® Growth Index (Reflects no deduction for fees, expenses or taxes)	7.33%	13.51%	7.83%

¹	A portion of the Fund’s total return was attributable to proceeds received in the fiscal years ended September 30, 2009, 2010 and 2011 in settlement of litigation.

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 the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Investor A Shares only, and the after-tax returns for Investor B, Investor C, Institutional and Class R Shares will vary.

Investment Manager

Mid-Cap Growth Equity’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).

Portfolio Managers

Name	Portfolio Manager of the Fund Since	Title
Lawrence Kemp	2013	Managing Director of BlackRock, Inc.
Kathryn Mongelli	2013	Director of BlackRock, Inc.
Phil Ruvinsky	2013	Director of BlackRock, Inc.

Purchase and Sale of Fund Shares

You may purchase or redeem shares of the Fund each day the New York Stock Exchange is open. To purchase or sell shares you should contact your Financial Intermediary, or, if you hold your shares through the Fund, you should contact the Fund by phone at (800) 441-7762, by mail (c/o BlackRock Funds, P.O. Box 9819, Providence, Rhode Island 02940-8019), or by the Internet at www.blackrock.com/funds. The Fund’s initial and subsequent investment minimums generally are as follows, although the Fund may reduce or waive the minimums in some cases:

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	Investor A and Investor C Shares	Investor B Shares	Institutional Shares	Class R Shares
Minimum Initial Investment	$1,000 for all accounts except: • $250 for certain fee-based programs. • $100 for certain employer-sponsored retirement plans. • $50, if establishing an Automatic Investment Plan.	Available only through exchanges and dividend reinvestments by current holders and for purchase by certain employer-sponsored retirement plans.	There is no minimum initial investment for employer-sponsored retirement plans (not including SEP IRAs, SIMPLE IRAs or SARSEPs), state sponsored 529 college savings plans, collective trust funds, investment companies or other pooled investment vehicles, unaffiliated thrifts and unaffiliated banks and trust companies, each of which may purchase shares of the Fund through a Financial Intermediary that has entered into an agreement with the Fund’s distributor to purchase such shares. $2 million for individuals and “Institutional Investors,” which include, but are not limited to, endowments, foundations, family offices, local, city, and state governmental institutions, corporations and insurance company separate accounts who may purchase shares of the Fund through a Financial Intermediary that has entered into an agreement with the Fund’s distributor to purchase such shares. $1,000 for investors of Financial Intermediaries that: (i) charge such investors a fee for advisory, investment consulting, or similar services or (ii) have entered into an agreement with the Fund’s distributor to offer Institutional Shares through a no-load program or investment platform.	$100 for all accounts.
Minimum Additional Investment	$50 for all accounts (with the exception of certain employer-sponsored retirement plans which may have a lower minimum).	N/A	No subsequent minimum.	No subsequent minimum.

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Tax Information

The Fund’s dividends and distributions may be subject to Federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to Federal income tax upon withdrawal from such tax-deferred arrangements.

Payments to Broker/Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the Financial Intermediary and your individual financial professional to recommend the Fund over another investment. Ask your individual financial professional or visit your Financial Intermediary’s website for more information.

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Fund Overview

Key Facts About BlackRock Advantage Small Cap Growth Fund

Investment Objective

The investment objective of BlackRock Advantage Small Cap Growth Fund (formerly known as BlackRock Small Cap Growth Equity Portfolio) (“Advantage Small Cap Growth” or the “Fund”), a series of BlackRock Funds ^SM (the “Trust”), is to seek long-term capital growth.

Fees and Expenses of the Fund

Shareholder Fees (fees paid directly from your investment)	Investor A Shares	Investor C Shares	Institutional Shares
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.25%	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of offering price or redemption proceeds, whichever is lower)	None ¹	1.00% ²	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)	Investor A Shares	Investor C Shares	Institutional Shares
Management Fee ^3,4,5	0.45%	0.45%	0.45%
Distribution and/or Service (12b-1) Fees	0.25%	1.00%	None
Other Expenses	0.34%	0.40%	0.31%
Total Annual Fund Operating Expenses ⁴	1.04%	1.85%	0.76%
Fee Waivers and/or Expense Reimbursements ^5,6	(0.29)%	(0.35)%	(0.26)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements ^5,6	0.75%	1.50%	0.50%

¹	A contingent deferred sales charge (“CDSC”) of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at time of purchase as part of an investment of $1,000,000 or more.
²	There is no CDSC on Investor C Shares after one year.

³	Management Fee has been restated to reflect current fees.
⁴	The Total Annual Fund Operating Expenses do not correlate to the ratios of expenses to average net assets given in the Fund’s most recent annual report, which do not include the restatement of the Management Fee to reflect current fees.
⁵	As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 44, BlackRock has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
⁶	As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 44, BlackRock has contractually agreed to waive and/or reimburse fees and/or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Interest Expense, Dividend Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) as a percentage of daily net assets to 0.75% (for Investor A Shares), 1.50% (for Investor C Shares) and 0.50% (for Institutional Shares) through January 31, 2018. The Fund may have to repay some of these waivers and/or reimbursements to BlackRock in the following two years. This contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Fund or by a vote of a majority of the outstanding voting securities of the Fund.

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Example:

	1 Year	3 Years	5 Years	10 Years
Investor A Shares	$598	$811	$1,042	$1,704
Investor C Shares	$253	$548	$ 968	$2,141
Institutional Shares	$ 51	$217	$ 397	$ 918

You would pay the following expenses if you did not redeem your shares:

	1 Year	3 Years	5 Years	10 Years
Investor C Shares	$153	$548	$968	$2,141

Portfolio Turnover:

Principal Investment Strategies of the Fund

Under normal circumstances, the Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of small cap companies and at least 80% of its net assets (plus any borrowings for investment purposes) in securities or instruments of issuers located in the United States. Equity securities consist primarily of common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock, such as derivatives. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. The Fund management team focuses on small capitalization companies that Fund management believes have above average prospects for earnings growth. Although a universal definition of small-capitalization companies does not exist, the Fund generally defines these companies as those with market capitalizations, at the time of the Fund’s investment, comparable in size to the companies in the Russell 2000 ^® Index (between approximately $133 million and $3.86 billion as of May 27, 2016). In the future, the Fund may define small-capitalization companies using a different index or classification system.

From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

The Fund may use derivatives, including options, warrants, futures, indexed securities, inverse securities, swaps and forward contracts both to seek to increase the return of the Fund and to hedge (or protect) the value of its assets against adverse movements in currency exchange rates, interest rates and movements in the securities markets. In order to manage cash flows into or out of the Fund effectively, the Fund may buy and sell financial futures contracts or options on such contracts. Derivatives are financial instruments whose value is derived from another security, a commodity (such as oil or gas), a currency or an index, including but not limited to the Russell 2000 ^® Index. The use of options, futures, indexed securities, inverse securities, swaps and forward contracts can be effective in protecting or enhancing the value of the Fund’s assets.

Principal Risks of Investing in the Fund

Risk is inherent in all investing. The value of your investment in Advantage Small Cap Growth, as well as the amount of return you receive on your investment, may fluctuate significantly from day to day and over time. You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. The following is a summary description of the principal risks of investing in the Fund.

■	Convertible Securities Risk — The market value of a convertible security performs like that of a regular debt security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible

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securities are subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks that apply to the underlying common stock.

■	Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
	Volatility Risk — Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
	Counterparty Risk — Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.
	Market and Liquidity Risk — The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately.
	Valuation Risk — Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them.

Leverage Risk — Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund.

■	Equity Securities Risk — Stock markets are volatile. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions.

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High Portfolio Turnover Risk — The Fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover (more than 100%) may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities. The sale of Fund portfolio securities may result in the realization and/or distribution to shareholders of higher capital gains or losses as compared to a fund with less active trading policies. These effects of higher than normal portfolio turnover may adversely affect Fund performance.

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Investment Style Risk — Under certain market conditions, growth investments have performed better during the later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles.

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Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.

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Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.

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■	Small Cap and Emerging Growth Securities Risk — Small cap or emerging growth companies may have limited product lines or markets. They may be less financially secure than larger, more established companies. They may depend on a more limited management group than larger capitalized companies.

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Warrants Risk — If the price of the underlying stock does not rise above the exercise price before the warrant expires, the warrant generally expires without any value and the Fund will lose any amount it paid for the warrant. Thus, investments in warrants may involve substantially more risk than investments in common stock. Warrants may trade in the same markets as their underlying stock; however, the price of the warrant does not necessarily move with the price of the underlying stock.

Performance Information

The information shows you how Advantage Small Cap Growth’s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to that of the Russell 2000 ^® Growth Index. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. Updated information on the Fund’s performance, including its current net asset value, can be obtained by visiting http://www.blackrock.com/funds or can be obtained by phone at (800) 882-0052.

Investor A Shares

ANNUAL TOTAL RETURNS ¹

BlackRock Advantage Small Cap Growth Fund
As of 12/31

During the ten-year period shown in the bar chart, the highest return for a quarter was 26.00% (quarter ended June 30, 2009) and the lowest return for a quarter was -28.84% (quarter ended December 31, 2008).

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As of 12/31/16 Average Annual Total Returns	1 Year	5 Years	10 Years ¹
BlackRock Advantage Small Cap Growth Fund — Investor A Shares
Return Before Taxes	7.12%	10.95%	6.63%
Return After Taxes on Distributions	7.12%	5.79%	4.08%
Return After Taxes on Distributions and Sale of Fund Shares	4.03%	7.25%	4.64%
BlackRock Advantage Small Cap Growth Fund — Investor C Shares
Return Before Taxes	11.16%	11.27%	6.30%
BlackRock Advantage Small Cap Growth Fund — Institutional Shares
Return Before Taxes	13.45%	12.50%	7.59%
Russell 2000 ^® Growth Index (Reflects no deduction for fees, expenses or taxes)	11.32%	13.74%	7.76%

¹	A portion of the Fund’s total return was attributable to proceeds received in the fiscal year ended September 30, 2009 in settlement of litigation.

Investment Manager

Advantage Small Cap Growth’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).

Portfolio Manager

Name	Portfolio Manager of the Fund Since	Title
Travis Cooke, CFA	2013	Managing Director of BlackRock, Inc.

Purchase and Sale of Fund Shares

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	Investor A and Investor C Shares	Institutional Shares
Minimum Initial Investment	$1,000 for all accounts except: • $250 for certain fee-based programs. • $100 for certain employer-sponsored retirement plans. • $50, if establishing an Automatic Investment Plan.	There is no minimum initial investment for employer-sponsored retirement plans (not including SEP IRAs, SIMPLE IRAs or SARSEPs), state sponsored 529 college savings plans, collective trust funds, investment companies or other pooled investment vehicles, unaffiliated thrifts and unaffiliated banks and trust companies, each of which may purchase shares of the Fund through a Financial Intermediary that has entered into an agreement with the Fund’s distributor to purchase such shares. $2 million for individuals and “Institutional Investors,” which include, but are not limited to, endowments, foundations, family offices, local, city, and state governmental institutions, corporations and insurance company separate accounts who may purchase shares of the Fund through a Financial Intermediary that has entered into an agreement with the Fund’s distributor to purchase such shares. $1,000 for investors of Financial Intermediaries that: (i) charge such investors a fee for advisory, investment consulting, or similar services or (ii) have entered into an agreement with the Fund’s distributor to offer Institutional Shares through a no-load program or investment platform.
Minimum Additional Investment	$50 for all accounts (with the exception of certain employer-sponsored retirement plans which may have a lower minimum).	No subsequent minimum.

Tax Information

Payments to Broker/Dealers and Other Financial Intermediaries

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Details About the Funds

Included in this prospectus are sections that tell you about buying and selling shares, management information, shareholder features of BlackRock Mid-Cap Growth Equity Portfolio (“Mid-Cap Growth Equity”) and BlackRock Advantage Small Cap Growth Fund (formerly known as BlackRock Small Cap Growth Equity Portfolio) (“Advantage Small Cap Growth”) (each a “Fund” and collectively the “Funds”), each a series of BlackRock Funds ^SM (the “Trust”), and your rights as a shareholder.

How Each Fund Invests

If the Trust’s Board of Trustees (the “Board”) determines that the investment objective of a Fund should be changed, shareholders will be given at least 30 days’ notice before any such change is made. However, such change can be effected without shareholder approval.

Mid-Cap Growth Equity

Investment Objective

The investment objective of Mid-Cap Growth Equity is long-term capital appreciation.

Investment Process

Fund management focuses on mid-capitalization growth companies. Mid-Cap Growth Equity seeks to invest in companies where, in the opinion of Fund management, free cash flow is likely to grow for a sustained period. Factors considered in Fund management’s analysis of a company may include 1) a large and underpenetrated addressable market, 2) a technology or service model that creates recurring demand for product, and 3) a competitive landscape that allows for stable or expanding margins. Fund management’s outlook for a company based upon these and other factors is then compared to the outlook of the company implied in the current share price of the company. Fund management looks to invest in companies where its view of future cash flows is more favorable than that which it believes is implied by the current price.

Principal Investment Strategies

Mid-Cap Growth Equity normally invests at least 80% of its net assets (which means net assets plus any borrowings for investment purposes) in equity securities issued by U.S. mid-capitalization companies which Fund management believes have above-average earnings growth potential. Equity securities consist primarily of common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock. Although a universal definition of mid-capitalization companies does not exist, the Fund generally defines these companies, at the time of the Fund’s investment, as those with market capitalizations comparable in size to the companies in the Russell Midcap ^® Growth Index (between approximately $1.978 billion and $26.284 billion as of May 27, 2016). In the future, the Fund may define mid-capitalization companies using a different index or classification system. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

The Fund may, when consistent with the Fund’s investment objective, buy or sell options or futures on a security or an index of securities (commonly known as derivatives). An option is the right to buy or sell an instrument at a specific price on or before a specific date. A future is an agreement to buy or sell an instrument at a specific price on a specific date. The primary purpose of using derivatives is to attempt to reduce risk to the Fund as a whole (hedge), but they may also be used to maintain liquidity and commit cash pending investment. Fund management also may, but under normal market conditions generally does not intend to, use derivatives for speculation to increase returns.

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ABOUT THE PORTFOLIO MANAGEMENT TEAM OF MID-CAP GROWTH EQUITY

Mid-Cap Growth Equity is managed by a team of financial professionals. Lawrence Kemp, Kathryn Mongelli and Phil Ruvinsky are the portfolio managers and are jointly and primarily responsible for the day-to-day management of the Fund. Please see “Management of the Funds — Portfolio Manager Information” for additional information about the portfolio management team.

Advantage Small Cap Growth

Investment Objective

The investment objective of Advantage Small Cap Growth is to seek long-term capital growth.

Investment Process

The Fund will seek to pursue its investment objective by investing in small cap growth securities in a disciplined manner using proprietary return forecast models. These forecast models are designed to identify aspects of mispricing across stocks, which the Fund can seek to capture by over- and under-weighting particular equities while seeking to control incremental risk.

The Fund has no stated minimum holding period for investments and may buy or sell securities whenever Fund management sees an appropriate opportunity. The Fund may engage in active and frequent trading of investments.

Principal Investment Strategies

Under normal circumstances, the Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of small cap companies and at least 80% of its net assets (plus any borrowings for investment purposes) in securities or instruments of issuers located in the United States. Equity securities consist primarily of common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock, such as derivatives. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. The Fund management team focuses on small capitalization companies that Fund management believes have above average prospects for earnings growth. Although a universal definition of small-capitalization companies does not exist, the Fund generally defines these companies as those with market capitalizations, at the time of the Fund’s investment, comparable in size to the companies in the Russell 2000 ^® Index (between approximately $133 million and $3.86 billion as of May 27, 2016). The market capitalizations of companies in each index change with market conditions and the composition of the index. The Fund will not sell a company’s securities solely because that company’s market capitalization rises above the Fund’s definition of small cap company. A company’s market capitalization may go up or down due to market fluctuations. In the future, the Fund may define small-capitalization companies using a different index or classification system.

From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

ABOUT THE PORTFOLIO MANAGER OF ADVANTAGE SMALL CAP GROWTH

Travis Cooke, CFA, is the portfolio manager and is primarily responsible for the day-to-day management of the Fund. Please see “Management of the Funds — Portfolio Manager Information” for additional information about the portfolio manager.

Other Strategies Applicable to the Funds

In addition to the principal strategies discussed above, each Fund (except as noted below) may also invest or engage in the following investments/strategies:

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■	Debt Securities (Advantage Small Cap Growth) — The Fund may invest in debt securities, including debt securities that are issued together with a particular equity security.

■	Foreign Securities — Each Fund may invest in equity securities of companies located outside the United States. Mid-Cap Growth Equity may invest up to 10% of its assets in foreign securities.

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Illiquid/Restricted Securities (Advantage Small Cap Growth) — The Fund may invest up to 15% of its net assets in illiquid securities that it cannot sell within seven days at approximately current value. The Fund may also invest in restricted securities, which are securities that cannot be offered for public resale unless registered under the applicable securities laws or that have a contractual restriction that prohibits or limits their resale (i.e., Rule 144A securities). They may include private placement securities that have not been registered under the applicable securities laws. Restricted securities may not be listed on an exchange and may have no active trading market and therefore may be considered to be illiquid. Rule 144A securities are restricted securities that can be resold to qualified institutional buyers but not to the general public and may be considered to be liquid securities.

■	Investment Companies — Each Fund has the ability to invest in other investment companies, such as exchange-traded funds (“ETFs”), unit investment trusts, and open-end and closed-end funds. Each Fund may invest in affiliated investment companies, including affiliated money market funds and affiliated ETFs.
■	Money Market Securities — Each Fund may invest in high quality money market securities pending investments or when it expects to need cash to pay redeeming shareholders. Each Fund will not be deemed to deviate from its normal strategies if it holds these securities pending investments.

■	Real Estate Investment Trusts (Advantage Small Cap Growth) — The Fund may invest in real estate investment trusts (“REITs”). REITs are companies that own interests in real estate or in real estate related loans or other interests, and have revenue primarily consisting of rent derived from owned, income producing real estate properties and capital gains from the sale of such properties. REITs can generally be classified as equity REITs, mortgage REITs and hybrid REITs. Equity REITs invest the majority of their assets directly in real property and derive their income primarily from rents. Equity REITs can also realize capital gains by selling properties that have appreciated in value. Mortgage REITs invest the majority of their assets in real estate mortgages and derive their income primarily from interest payments. Hybrid REITs combine the characteristics of both equity REITs and mortgage REITs. REITs are not taxed on income distributed to shareholders provided they comply with the requirements of the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”).
■	Repurchase Agreements and Purchase and Sale Contracts (Advantage Small Cap Growth) — The Fund may enter into certain types of repurchase agreements or purchase and sale contracts. Under a repurchase agreement, the seller agrees to repurchase a security at a mutually agreed-upon time and price. A purchase and sale contract is similar to a repurchase agreement, but purchase and sale contracts also provide that the purchaser receives any interest on the security paid during the period.
■	Securities Lending (Advantage Small Cap Growth) — The Fund may lend securities with a value up to 33 ¹ ⁄ 3 % of its total assets to financial institutions that provide cash or securities issued or guaranteed by the U.S. Government as collateral.

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Temporary Defensive Strategies — It is possible that in extreme market conditions a Fund may temporarily invest some or all of its assets in high quality money market securities. Such a temporary defensive strategy would be inconsistent with a Fund’s principal investment strategies. The reason for acquiring money market securities would be to avoid market losses. However, if market conditions improve, this strategy could result in reducing the potential gain from the market upswing, thus reducing the Fund’s opportunity to achieve its investment objective.

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When-Issued and Delayed Delivery Securities and Forward Commitments — The purchase or sale of securities on a when-issued basis, on a delayed delivery basis or through a forward commitment involves the purchase or sale of securities by a Fund at an established price with payment and delivery taking place in the future. Each Fund enters into these transactions to obtain what is considered an advantageous price to the Fund at the time of entering into the transaction.

Investment Risks

This section contains a discussion of the general risks of investing in the Funds. The “Investment Objectives and Policies” section in the Statement of Additional Information (the “SAI”) also includes more information about the Funds, their investments and the related risks. As with any fund, there can be no guarantee that a Fund will meet its investment objective or that a Fund’s performance will be positive for any period of time. An investment in a Fund is not a deposit in any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or by any bank or governmental agency.

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Principal Risks of Investing in the Funds

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Convertible Securities Risk — The market value of a convertible security performs like that of a regular debt security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible securities are subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks that apply to the underlying common stock.

■	Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
	Volatility Risk – The Fund’s use of derivatives may reduce the Fund’s returns and/or increase volatility. Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
	Counterparty Risk – Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.
	Market and Liquidity Risk – Some derivatives are more sensitive to interest rate changes and market price fluctuations than other securities. The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately. The Fund could also suffer losses related to its derivatives positions as a result of unanticipated market movements, which losses are potentially unlimited. Finally, BlackRock Advisors, LLC (“BlackRock”) may not be able to predict correctly the direction of securities prices, interest rates and other economic factors, which could cause the Fund’s derivatives positions to lose value.
	Valuation Risk – Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. Derivatives may also expose the Fund to greater risk and increase its costs. Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund.
	Hedging Risk – When a derivative is used as a hedge against a position that the Fund holds, any loss generated by the derivative generally should be substantially offset by gains on the hedged investment, and vice versa. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains. Hedges are sometimes subject to imperfect matching between the derivative and the underlying security, and there can be no assurance that the Fund’s hedging transactions will be effective. The use of hedging may result in certain adverse tax consequences noted below.

Tax Risk – The federal income tax treatment of a derivative may not be as favorable as a direct investment in an underlying asset and may adversely affect the timing, character and amount of income the Fund realizes from its investments. As a result, a larger portion of the Fund’s distributions may be treated as ordinary income rather than capital gains. In addition, certain derivatives are subject to mark-to-market or straddle provisions of the Internal Revenue Code. If such provisions are applicable, there could be an increase (or decrease) in the amount of taxable dividends paid by the Fund. In addition, the tax treatment of certain derivatives, such as swaps, is unsettled and may be subject to future legislation, regulation or administrative pronouncements issued by the Internal Revenue Service (“IRS”).

Regulatory Risk – Derivative contracts, including, without limitation, swaps, currency forwards and non-deliverable forwards, are subject to regulation under the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) in the United States and under comparable regimes in Europe, Asia and other non-U.S. jurisdictions. Under the Dodd-Frank Act, certain derivatives will become subject to margin requirements and swap dealers will be required to collect margin from the Fund with respect to such derivatives. Implementation of such regulations under the Dodd-Frank Act regarding clearing, mandatory trading and margining of swaps and other derivatives may increase the costs to the Fund of trading in these instruments and, as a result, may affect returns to investors in the Fund.

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	regulation that may be implemented on the ability of the Fund to use swaps or any other financial derivative product, and there can be no assurance that any new governmental regulation will not adversely affect the Fund’s ability to achieve its investment objective.
	Risks Specific to Certain Derivatives Used by the Fund

Swaps – Swap agreements are two-party contracts entered into 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 can be adjusted for an interest factor. Swap agreements involve the risk that the party with whom the Fund has entered into the swap will default on its obligation to pay the Fund and the risk that the Fund will not be able to meet its obligations to pay the other party to the agreement.

Forward Foreign Currency Exchange Contracts – Forward foreign currency exchange transactions are over-the-counter contracts to purchase or sell a specified amount of a specified currency or multinational currency unit at a price and future date set at the time of the contract. Forward foreign currency exchange contracts do not eliminate fluctuations in the value of non-U.S. securities but rather allow the Fund to establish a fixed rate of exchange for a future point in time. This strategy can have the effect of reducing returns and minimizing opportunities for gain.

Indexed and Inverse Securities – Indexed and inverse securities provide a potential return based on a particular index of value or interest rates. The Fund’s return on these securities will be subject to risk with respect to the value of the particular index. These securities are subject to leverage risk and correlation risk. Certain indexed and inverse securities have greater sensitivity to changes in interest rates or index levels than other securities, and the Fund’s investment in such instruments may decline significantly in value if interest rates or index levels move in a way Fund management does not anticipate.

Futures – Futures are standardized, exchange-traded contracts that obligate a purchaser to take delivery, and a seller to make delivery, of a specific amount of an asset at a specified future date at a specified price. The primary risks associated with the use of futures contracts and options are: (a) the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the futures contract or option; (b) the possible lack of a liquid secondary market for a futures contract and the resulting inability to close a futures contract when desired; (c) losses caused by unanticipated market movements, which are potentially unlimited; (d) the investment adviser’s inability to predict correctly the direction of securities prices, interest rates, currency exchange rates and other economic factors; and (e) the possibility that the counterparty will default in the performance of its obligations.

Options – An option is an agreement that, for a premium payment or fee, gives the option holder (the purchaser) the right but not the obligation to buy (a “call option”) or sell (a “put option”) the underlying asset (or settle for cash in an amount based on an underlying asset, rate, or index) at a specified price (the “exercise price”) during a period of time or on a specified date. Investments in options are considered speculative. When the Fund purchases an option, it may lose the premium paid for it if the price of the underlying security or other assets decreased or remained the same (in the case of a call option) or increased or remained the same (in the case of a put option). If a put or call option purchased by the Fund were permitted to expire without being sold or exercised, its premium would represent a loss to the Fund. To the extent that the Fund writes or sells an option, if the decline or increase in the underlying asset is significantly below or above the exercise price of the written option, the Fund could experience a substantial loss.

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Equity Securities Risk — Common and preferred stocks represent equity ownership in a company. Stock markets are volatile. The price of equity securities will fluctuate and can decline and reduce the value of a portfolio investing in equities. The value of equity securities purchased by the Fund could decline if the financial condition of the companies the Fund invests in declines or if overall market and economic conditions deteriorate. The value of equity securities may also decline due to factors that affect a particular industry or industries, such as labor shortages or an increase in production costs and competitive conditions within an industry. In addition, the value may decline due to general market conditions that are not specifically related to a company or industry, such as real or perceived adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates or generally adverse investor sentiment.

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High Portfolio Turnover Risk (Advantage Small Cap Growth Principal Risk; Mid-Cap Growth Equity Other Risk) — The Fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover (more than 100%) may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities. The sale of Fund portfolio securities may result in the realization and/or distribution to shareholders of higher capital gains or losses

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as compared to a fund with less active trading policies. These effects of higher than normal portfolio turnover may adversely affect Fund performance.

■	Investment Style Risk — Under certain market conditions, growth investments have performed better during the later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles.
■	Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. As an open-end investment company registered with the SEC, the Fund is subject to the federal securities laws, including the Investment Company Act of 1940, as amended (the “Investment Company Act”), the rules thereunder, and various SEC and SEC staff interpretive positions. In accordance with these laws, rules and positions, the Fund must “set aside” liquid assets (often referred to as “asset segregation”), or engage in other SEC- or staff-approved measures, to “cover” open positions with respect to certain kinds of instruments. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
■	Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
■	Mid Cap Securities Risk (Mid-Cap Growth Equity) — The securities of mid cap companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies.

■	“New Issues” Risk — “New issues” are IPOs of equity securities. Investments in companies that have recently gone public have the potential to produce substantial gains for the Fund. However, there is no assurance that the Fund will have access to profitable IPOs and therefore investors should not rely on these past gains as an indication of future performance. The investment performance of the Fund during periods when it is unable to invest significantly or at all in IPOs may be lower than during periods when the Fund is able to do so. In addition, as the Fund increases in size, the impact of IPOs on the Fund’s performance will generally decrease. Securities issued in IPOs are subject to many of the same risks as investing in companies with smaller market capitalizations. Securities issued in IPOs have no trading history, and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may be highly volatile or may decline shortly after the IPO. When an IPO is brought to the market, availability may be limited and the Fund may not be able to buy any shares at the offering price, or, if it is able to buy shares, it may not be able to buy as many shares at the offering price as it would like.
■	Preferred Securities Risk — Preferred securities may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company’s preferred securities generally pay dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred stock of larger companies.
■	Small Cap and Emerging Growth Securities Risk (Advantage Small Cap Growth) — Small cap or emerging growth companies may have limited product lines or markets. They may be less financially secure than larger, more established companies. They may depend on a small number of key personnel. If a product fails or there are other adverse developments, or if management changes, the Fund’s investment in a small cap or emerging growth company may lose substantial value. In addition, it is more difficult to get information on smaller companies, which tend to be less well known, have shorter operating histories, do not have significant ownership by large investors and are followed by relatively few securities analysts.

The securities of small cap and emerging growth companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than larger cap securities or the market as a whole. In addition, small cap and emerging growth securities may be particularly sensitive to changes in interest rates, borrowing costs and earnings. Investing in small cap and emerging growth securities requires a longer term view.

■	Warrants Risk (Advantage Small Cap Growth) — If the price of the underlying stock does not rise above the exercise price before the warrant expires, the warrant generally expires without any value and the Fund will lose any

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amount it paid for the warrant. Thus, investments in warrants may involve substantially more risk than investments in common stock. Warrants may trade in the same markets as their underlying stock; however, the price of the warrant does not necessarily move with the price of the underlying stock.

Other Risks of Investing in the Funds

Each Fund (except as noted below) may also be subject to certain other risks associated with its investments and investment strategies, including:

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Borrowing Risk — Borrowing may exaggerate changes in the net asset value of Fund shares and in the return on the Fund’s portfolio. Borrowing will cost the Fund interest expense and other fees. The costs of borrowing may reduce the Fund’s return. Borrowing may cause the Fund to liquidate positions when it may not be advantageous to do so to satisfy its obligations.

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Debt Securities Risk (Advantage Small Cap Growth) — Debt securities, such as bonds, involve credit risk. Credit risk is the risk that the borrower will not make timely payments of principal and interest. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on the issuer’s financial condition and on the terms of the securities. Debt securities are also subject to interest rate risk. Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. The Fund may be subject to a greater risk of rising interest rates due to the current period of historically low rates.

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Emerging Markets Risk (Advantage Small Cap Growth) — The risks of foreign investments are usually much greater for emerging markets. Investments in emerging markets may be considered speculative. Emerging markets may include those in countries considered emerging or developing by the World Bank, the International Finance Corporation or the United Nations. Emerging markets are riskier than more developed markets because they tend to develop unevenly and may never fully develop. They are more likely to experience hyperinflation and currency devaluations, which adversely affect returns to U.S. investors. In addition, many emerging markets have far lower trading volumes and less liquidity than developed markets. Since these markets are often small, they may be more likely to suffer sharp and frequent price changes or long-term price depression because of adverse publicity, investor perceptions or the actions of a few large investors. In addition, traditional measures of investment value used in the United States, such as price to earnings ratios, may not apply to certain small markets. Also, there may be less publicly available information about issuers in emerging markets than would be available about issuers in more developed capital markets, and such issuers may not be subject to accounting, auditing and financial reporting standards and requirements comparable to those to which U.S. companies are subject. Communications between the United States and emerging market countries may be unreliable, increasing the risk of delayed settlements or losses of security certificates.

	Many emerging markets have histories of political instability and abrupt changes in policies. As a result, their governments are more likely to take actions that are hostile or detrimental to private enterprise or foreign investment than those of more developed countries. Some countries have pervasive corruption and crime that may hinder investments. Certain emerging markets may also face other significant internal or external risks, including the risk of war, and ethnic, religious and racial conflicts. In addition, governments in many emerging market countries participate to a significant degree in their economies and securities markets, which may impair investment and economic growth.
■	Expense Risk — Fund expenses are subject to a variety of factors, including fluctuations in the Fund’s net assets. Accordingly, actual expenses may be greater or less than those indicated. For example, to the extent that the Fund’s net assets decrease due to market declines or redemptions, the Fund’s expenses will increase as a percentage of Fund net assets. During periods of high market volatility, these increases in the Fund’s expense ratio could be significant.
■	Foreign Securities Risk — Because the Fund may invest in companies located in countries other than the United States, the Fund may be exposed to risks associated with foreign investments.

■	The value of holdings traded outside the United States (and any hedging transactions in foreign currencies) will be affected by changes in currency exchange rates.
■	The costs of non-U.S. securities transactions tend to be higher than those of U.S. transactions.
■	Foreign holdings may be adversely affected by foreign government action.
■	International trade barriers or economic sanctions against certain non-U.S. countries may adversely affect these holdings.
■	The economies of certain countries may compare unfavorably with the U.S. economy.
■	Foreign securities markets may be smaller than the U.S. markets, which may make trading more difficult.

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Investment in Other Investment Companies Risk — As with other investments, investments in other investment companies, including ETFs, are subject to market and selection risk. In addition, if the Fund acquires shares of investment companies, including ones affiliated with the Fund, shareholders bear both their proportionate share of expenses in the Fund (including management and advisory fees) and, indirectly, the expenses of the investment companies (to the extent not offset by BlackRock through waivers to the Fund’s management fees). To the extent the Fund is held by an affiliated fund, the ability of the Fund itself to hold other investment companies may be limited.

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Liquidity Risk (Advantage Small Cap Growth) — Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid securities may reduce the returns of the Fund because it may be difficult to sell the illiquid securities at an advantageous time or price. To the extent that the Fund’s principal investment strategies involve derivatives or securities with substantial market and/or credit risk, the Fund will tend to have the greatest exposure to liquidity risk. Liquid investments may become illiquid after purchase by the Fund, particularly during periods of market turmoil. Illiquid investments may be harder to value, especially in changing markets, and if the Fund is forced to sell these investments to meet redemption requests or for other cash needs, the Fund may suffer a loss. In addition, when there is illiquidity in the market for certain securities, the Fund, due to limitations on illiquid investments, may be subject to purchase and sale restrictions.

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Money Market Securities Risk — If market conditions improve while the Fund has invested some or all of its assets in high quality money market securities, this strategy could result in reducing the potential gain from the market upswing, thus reducing the Fund’s opportunity to achieve its investment objective.

■	Real Estate Related Securities Risk (Advantage Small Cap Growth) — The main risk of real estate related securities is that the value of the underlying real estate may go down. Many factors may affect real estate values. These factors include both the general and local economies, the amount of new construction in a particular area, the laws and regulations (including zoning and tax laws) affecting real estate and the costs of owning, maintaining and improving real estate. The availability of mortgages and changes in interest rates may also affect real estate values. If the Fund’s real estate related investments are concentrated in one geographic area or in one property type, the Fund will be particularly subject to the risks associated with that area or property type.
■	REIT Investment Risk (Advantage Small Cap Growth) — In addition to the risks facing real estate related securities, such as a decline in property values due to increasing vacancies, a decline in rents resulting from unanticipated economic, legal or technological developments or a decline in the price of securities of real estate companies due to a failure of borrowers to pay their loans or poor management, investments in REITs involve unique risks. REITs may have limited financial resources, may trade less frequently and in limited volume and may be more volatile than other securities.
■	Repurchase Agreements and Purchase and Sale Contracts Risk (Advantage Small Cap Growth) — If the other party to a repurchase agreement or purchase and sale contract defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security in either situation and the market value of the security declines, the Fund may lose money.
■	Securities Lending Risk (Advantage Small Cap Growth) — Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, the Fund may lose money and there may be a delay in recovering the loaned securities. The Fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. These events could trigger adverse tax consequences for the Fund.

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Valuation Risk —The price the Fund could receive upon the sale of any particular portfolio investment may differ from the Fund’s valuation of the investment, particularly for securities that trade in thin or volatile markets or that are valued using a fair valuation methodology or a price provided by an independent pricing service. As a result, the price received upon the sale of an investment may be less than the value ascribed by the Fund, and the Fund could realize a greater than expected loss or lesser than expected gain upon the sale of the investment. Pricing services that value fixed-income securities generally utilize a range of market-based and security-specific inputs and assumptions, as well as considerations about general market conditions, to establish a price. Pricing services generally value fixed-income securities assuming orderly transactions of an institutional round lot size, but may be held or transactions may be conducted in such securities in smaller, odd lot sizes. Odd lots often trade at lower prices than institutional round lots. The Fund’s ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third-party service providers.

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When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will

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not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.

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Account Information

How to Choose the Share Class that Best Suits Your Needs

Each Fund currently offers multiple share classes (Investor A, Investor C and Institutional Shares in this prospectus for Advantage Small Cap Growth; Investor A, Investor B, Investor C, Institutional and Class R Shares in this prospectus for Mid-Cap Growth Equity), each with its own sales charge and expense structure, allowing you to invest in the way that best suits your needs. Each share class represents an ownership interest in the same investment portfolio of the particular Fund. When you choose your class of shares, you should consider the size of your investment and how long you plan to hold your shares. Either your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock, The PNC Financial Services Group, Inc. (“PNC”) and their respective affiliates) (each a “Financial Intermediary”) can help you determine which share class is best suited to your personal financial goals. Investor A, Investor B and Investor C Shares are sometimes referred to herein collectively as “Investor Shares.”

For example, if you select Institutional Shares of a Fund, you will not pay any sales charge. However, only certain investors may buy Institutional Shares. If you select Investor A Shares of a Fund, you generally pay a sales charge at the time of purchase and an ongoing service fee of 0.25% per year. You may be eligible for a sales charge reduction or waiver.

If you select Investor C or Class R Shares of a Fund (if available for your Fund), you will invest the full amount of your purchase price, but you will be subject to a distribution fee of 0.75% per year for Investor C Shares and 0.25% per year for Class R Shares and a service fee of 0.25% per year for both classes of shares under plans adopted pursuant to Rule 12b-1 under the Investment Company Act. Because these fees are paid out of each Fund’s assets on an ongoing basis, over time these fees increase the cost of your investment and may cost you more than paying other types of sales charges. In addition, you may be subject to a deferred sales charge when you sell Investor C Shares within one year. Classes with lower expenses will have higher net asset values and dividends relative to other share classes.

Investor B Shares are offered on a very limited basis as described below. Investor B Shares are subject to ongoing service and distribution fees and may be subject to a deferred sales charge.

Each Fund’s shares are distributed by BlackRock Investments, LLC (the “Distributor”), an affiliate of BlackRock.

The table on the following pages summarizes key features of each of the share classes offered by this prospectus.

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Share Classes at a Glance ¹

	Investor A	Investor B ²	Investor C ^3,4	Institutional	Class R ²
Availability	Generally available through Financial Intermediaries.	Available only through exchanges and dividend reinvestments by current holders and for purchase by certain employer-sponsored retirement plans.	Generally available through Financial Intermediaries.	Limited to certain investors, including: • Individuals and “Institutional Investors,” which include, but are not limited to, endowments, foundations, family offices, local, city, and state governmental institutions, corporations and insurance company separate accounts, who may purchase shares of the Fund through a Financial Intermediary that has entered into an agreement with the Distributor to purchase such shares. • Employer-sponsored retirement plans (not including SEP IRAs, SIMPLE IRAs or SARSEPs), state sponsored 529 college savings plans, collective trust funds, investment companies or other pooled investment vehicles, unaffiliated thrifts and unaffiliated banks and trust companies, each of which may purchase shares of the Fund through a Financial Intermediary that has entered into an agreement with the Distributor to purchase such shares. • Employees, officers and directors/trustees of BlackRock or its affiliates. • Participants in certain programs sponsored by BlackRock or its affiliates or other Financial Intermediaries.	Available only to certain employer-sponsored retirement plans.

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	Investor A	Investor B ²	Investor C ^3,4	Institutional	Class R ²
Minimum Investment	$1,000 for all accounts except: • $250 for certain fee-based programs. • $100 for certain employer-sponsored retirement plans. • $50, if establishing an Automatic Investment Plan (“AIP”).	Investor B Shares are not generally available for purchase (see above).	$1,000 for all accounts except: • $250 for certain fee-based programs. • $100 for certain employer-sponsored retirement plans. • $50, if establishing an AIP.	There is no investment minimum for: • Employer-sponsored retirement plans (not including SEP IRAs, SIMPLE IRAs or SARSEPs), state sponsored 529 college savings plans, collective trust funds, investment companies or other pooled investment vehicles, unaffiliated thrifts and unaffiliated banks and trust companies. • Employees, officers and directors/trustees of BlackRock or its affiliates. $2 million for individuals and Institutional Investors. $1,000 for investors of Financial Intermediaries that: (i) charge such investors a fee for advisory, investment consulting, or similar services or (ii) have entered into an agreement with the Distributor to offer Institutional Shares through a no-load program or investment platform.	• $100 for all accounts.
Initial Sales Charge?	Yes. Payable at time of purchase. Lower sales charges are available for larger investments.	No. Entire purchase price is invested in shares of the Fund.	No. Entire purchase price is invested in shares of the Fund.	No. Entire purchase price is invested in shares of the Fund.	No. Entire purchase price is invested in shares of the Fund.

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	Investor A	Investor B ²	Investor C ^3,4	Institutional	Class R ²
Deferred Sales Charge?	No. (May be charged for purchases of $1 million or more that are redeemed within 18 months.)	Yes. Payable if you redeem within six years of purchase.	Yes. Payable if you redeem within one year of purchase.	No.	No.
Distribution and Service (12b-1) Fees?	No Distribution Fee. 0.25% Annual Service Fee.	0.75% Annual Distribution Fee. 0.25% Annual Service Fee.	0.75% Annual Distribution Fee. 0.25% Annual Service Fee.	No.	0.25% Annual Distribution Fee. 0.25% Annual Service Fee.
Redemption Fees?	No.	No.	No.	No.	No.
Conversion to Investor A Shares?	N/A	Yes, automatically after approximately eight years.	No.	No.	No.
Advantage	Makes sense for investors who are eligible to have the sales charge reduced or eliminated or who have a long-term investment horizon because there are no ongoing distribution fees.	No up-front sales charge so you start off owning more shares.	No up-front sales charge so you start off owning more shares. These shares may make sense for investors who have a shorter investment horizon relative to Investor A Shares.	No up-front sales charge so you start off owning more shares. No distribution or service fees.	No up-front sales charge so you start off owning more shares.
Disadvantage	You pay a sales charge up-front, and therefore you start off owning fewer shares.	Limited availability. You pay ongoing distribution fees each year you own Investor B Shares, which means that over the long term you can expect higher total fees per share than Investor A Shares and, as a result, lower total performance.	You pay ongoing distribution fees each year you own Investor C Shares, which means that over the long term you can expect higher total fees per share than Investor A Shares and, as a result, lower total performance.	Limited availability.	Limited availability. You pay ongoing distribution fees each year you own Class R Shares, which means that over the long term you can expect higher total fees per share than Investor A Shares and, as a result, lower total performance. Class R Shares do not convert to Investor A Shares, so you will continue paying the ongoing distribution fees as long as you hold Class R Shares.

¹	Please see “Details About the Share Classes” for more information about each share class.

Investor B and Class R Shares are currently offered only by Mid-Cap Growth Equity.

³	If you establish a new account directly with a Fund and do not have a Financial Intermediary associated with your account, you may only invest in Investor A Shares. Applications without a Financial Intermediary that select Investor C Shares will not be accepted.
⁴	The Funds will not accept a purchase order of $500,000 or more for Investor C Shares. Your Financial Intermediary may set a lower maximum for Investor C Shares.

The following pages will cover the additional details of each share class, including the Institutional and Class R Share requirements, the sales charge table for Investor A Shares, reduced sales charge information, Investor B and Investor C Share CDSC information, and sales charge waivers.

More information about existing sales charge reductions and waivers is available free of charge in a clear and prominent format via hyperlink at www.blackrock.com and in the SAI, which is available on the website or on request.

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Details About the Share Classes

Investor A Shares — Initial Sales Charge Option

The following table shows the front-end sales charges that you may pay if you buy Investor A Shares. The offering price for Investor A Shares includes any front-end sales charge. The front-end sales charge expressed as a percentage of the offering price may be higher or lower than the charge described below due to rounding. Similarly, any contingent deferred sales charge paid upon certain redemptions of Investor A Shares expressed as a percentage of the applicable redemption amount may be higher or lower than the charge described below due to rounding. You may qualify for a reduced front-end sales charge. Purchases of Investor A Shares at certain fixed dollar levels, known as “breakpoints,” cause a reduction in the front-end sales charge. Once you achieve a breakpoint, you pay that sales charge on your entire purchase amount (and not just the portion above the breakpoint). If you select Investor A Shares, you will pay a sales charge at the time of purchase as shown in the following table.

Your Investment	Sales Charge as a % of Offering Price	Sales Charge as a % of Your Investment ¹	Dealer Compensation as a % of Offering Price
Less than $25,000	5.25%	5.54%	5.00%
$25,000 but less than $50,000	4.75%	4.99%	4.50%
$50,000 but less than $100,000	4.00%	4.17%	3.75%
$100,000 but less than $250,000	3.00%	3.09%	2.75%
$250,000 but less than $500,000	2.50%	2.56%	2.25%
$500,000 but less than $750,000	2.00%	2.04%	1.75%
$750,000 but less than $1,000,000	1.50%	1.52%	1.25%
$1,000,000 and over ²	0.00%	0.00%	— ²

Rounded to the nearest one-hundredth percent.

If you invest $1,000,000 or more in Investor A Shares, you will not pay an initial sales charge. In that case, BlackRock compensates the Financial Intermediary from its own resources. However, if you redeem your shares within 18 months after purchase, you may be charged a deferred sales charge of 1.00% of the lesser of the original cost of the shares being redeemed or your redemption proceeds. Such deferred sales charge may be waived in connection with certain fee-based programs.

No initial sales charge applies to Investor A Shares that you buy through reinvestment of Fund dividends or capital gains.

Sales Charges Reduced or Eliminated for Investor A Shares

There are several ways in which the sales charge can be reduced or eliminated. Purchases of Investor A Shares at certain fixed dollar levels, known as “breakpoints,” cause a reduction in the front-end sales charge (as described above in the “Investor A Shares — Initial Sales Charge Option” section). Additionally, the front-end sales charge can be reduced or eliminated through one or a combination of the following: a Letter of Intent, the right of accumulation, the reinstatement privilege (described under “Account Services and Privileges”), or a waiver of the sales charge (described below).

Reductions or eliminations through a Letter of Intent or the right of accumulation will apply to the value of all qualifying holdings in shares of mutual funds sponsored and advised by BlackRock or its affiliates (“BlackRock Funds”) owned by (a) the investor, or (b) the investor’s spouse and any children and a trust, custodial account or fiduciary account for the benefit of any such individuals. For this purpose, the value of an investor’s holdings means the offering price of the newly purchased shares (including any applicable sales charge) plus the current value (including any sales charges paid) of all other shares the investor already holds taken together.

Qualifying Holdings — Investor Shares, Institutional Shares (in most BlackRock Funds) and investments in the BlackRock CollegeAdvantage 529 Program.

Qualifying Holdings may include shares held in accounts held at a Financial Intermediary, including personal accounts, certain retirement accounts, UGMA/UTMA accounts, Joint Tenancy accounts, trust accounts and Transfer on Death accounts, as well as shares purchased by a trust of which the investor is a beneficiary. For purposes of the Letter of Intent and right of accumulation, the investor may not combine with the investor’s other holdings shares held in pension, profit sharing or other employer-sponsored retirement plans if those shares are held in the name of a nominee or custodian.

In order to receive a reduced sales charge, at the time an investor purchases shares of a Fund, the investor should inform the Financial Intermediary and/or BlackRock Funds of any other shares of a Fund or any other BlackRock Fund

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that qualify for a reduced sales charge. Failure by the investor to notify the Financial Intermediary or BlackRock Funds may result in the investor not receiving the sales charge reduction to which the investor is otherwise entitled.

The Financial Intermediary or BlackRock Funds may request documentation — including account statements and records of the original cost of the shares owned by the investor, the investor’s spouse and/or children showing that the investor qualifies for a reduced sales charge. The investor should retain these records because — depending on where an account is held or the type of account — the Fund and/or the Financial Intermediary or BlackRock Funds may not be able to maintain this information.

For more information, see the SAI or contact your Financial Intermediary.

Letter of Intent

An investor may qualify for a reduced front-end sales charge immediately by signing a “Letter of Intent” stating the investor’s intention to buy a specified amount of Investor A, Investor C and/or Institutional Shares and/or make an investment through the BlackRock CollegeAdvantage 529 Program in one or more BlackRock Funds within the next 13 months that would, if bought all at once, qualify the investor for a reduced sales charge. The initial investment must meet the minimum initial purchase requirement. The 13-month Letter of Intent period commences on the day that the Letter of Intent is received by the Fund.

The market value of current holdings in the BlackRock Funds (including Investor A, Investor B, Investor C and Institutional Shares and the BlackRock CollegeAdvantage 529 Program Class A and Class C Units) as of the date of commencement that are eligible under the Right of Accumulation may be counted towards the sales charge reduction.

The investor must notify the Fund of (i) any current holdings in the BlackRock Funds and/or the BlackRock CollegeAdvantage 529 Program that should be counted towards the sales charge reduction and (ii) any subsequent purchases that should be counted towards the Letter of Intent.

During the term of the Letter of Intent, the Fund will hold Investor A Shares representing up to 5% of the indicated amount in an escrow account for payment of a higher sales load if the full amount indicated in the Letter of Intent is not purchased. If the full amount indicated is not purchased within the 13-month period, and the investor does not pay the higher sales load within 20 days, the Fund will redeem enough of the Investor A Shares held in escrow to pay the difference.

Right of Accumulation

Investors have a “right of accumulation” under which the current value of an investor’s existing Investor A and A1, Investor B and B1, Investor C, C1, C2 and C3, and Institutional Shares in most BlackRock Funds and the investment in the BlackRock CollegeAdvantage 529 Program by the investor or by or on behalf of the investor’s spouse and children may be combined with the amount of the current purchase in determining whether an investor qualifies for a breakpoint and a reduced front-end sales charge. Financial Intermediaries may value current holdings of their customers differently for purposes of determining whether an investor qualifies for a breakpoint and a reduced front-end sales charge, although customers of the same Financial Intermediary will be treated similarly. In order to use this right, the investor must alert BlackRock to the existence of any previously purchased shares.

Other Front-End Sales Charge Waivers

The following persons may also buy Investor A Shares without paying a sales charge:

■	Certain employer-sponsored retirement plans. For purposes of this waiver, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs;
■	Rollovers of current investments through certain employer-sponsored retirement plans, provided the shares are transferred to the same BlackRock Fund as either a direct rollover, or subsequent to distribution, the rolled-over proceeds are contributed to a BlackRock IRA through an account directly with the Fund; or purchases by IRA programs that are sponsored by Financial Intermediary firms provided the Financial Intermediary firm has entered into a Class A Net Asset Value agreement with respect to such program with the Distributor;
■	Insurance company separate accounts;
■	Registered investment advisers, trust companies and bank trust departments exercising discretionary investment authority with respect to amounts to be invested in the Fund;
■	Persons participating in a fee-based program (such as a wrap account) under which they pay advisory fees to a broker-dealer or other financial institution;
■	Financial Intermediaries who have entered into an agreement with the Distributor and have been approved by the Distributor to offer Fund shares to self-directed investment brokerage accounts that may or may not charge a transaction fee;

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Persons associated with a Fund, a Fund’s manager, a Fund’s sub-advisers, transfer agent, Distributor, fund accounting agents, Barclays PLC (“Barclays”) and their respective affiliates (to the extent permitted by these firms) including: (a) officers, directors and partners; (b) employees and retirees; (c) employees of firms who have entered into selling agreements to distribute shares of BlackRock Funds; (d) immediate family members of such persons; and (e) any trust, pension, profit-sharing or other benefit plan for any of the persons set forth in (a) through (d); and

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State sponsored 529 college savings plans.

The availability of Investor A Shares sales charge waivers may depend on the policies, procedures and trading platforms of your Financial Intermediary; consult your financial adviser.

Investor A Shares at Net Asset Value

If you invest $1,000,000 or more in Investor A Shares, you will not pay any initial sales charge. However, if you redeem your Investor A Shares within 18 months after purchase, you may be charged a deferred sales charge of 1.00% of the lesser of the original cost of the shares being redeemed or your redemption proceeds. For a discussion on waivers, see “Contingent Deferred Sales Charge Waivers.”

If you are eligible to buy both Investor A and Institutional Shares, you should buy Institutional Shares since Investor A Shares are subject to a front end sales charge and an annual 0.25% service fee, while Institutional Shares are not. The Distributor normally pays the annual Investor A Shares service fee to dealers as a shareholder servicing fee on a monthly basis.

Investor B (offered only by Mid-Cap Growth Equity) and Investor C Shares — Deferred Sales Charge Options

Investor B Shares are currently available for purchase only through exchanges and dividend reinvestments by current holders of Investor B Shares and for purchase by certain employer-sponsored retirement plans. If you select Investor C Shares, you do not pay an initial sales charge at the time of purchase. However if you redeem your Investor B Shares within six years after purchase or your Investor C Shares within one year after purchase, you may be required to pay a deferred sales charge. The charge will apply to the lesser of the original cost of the shares being redeemed or the proceeds of your redemption. No deferred sales charge applies to shares that you buy through reinvestment of dividends or capital gains. You will also pay distribution fees of 0.75% and service fees of 0.25% for both classes of shares each year. Because these fees are paid out of the Fund’s assets on an ongoing basis, over time these fees increase the cost of your investment and may cost you more than paying other types of sales charges. The Distributor uses the money that it receives from the deferred sales charges and the distribution fees to cover the costs of marketing, advertising and compensating the Financial Intermediary who assists you in purchasing Fund shares.

The Distributor currently pays dealers a sales concession of 4.00% of the purchase price of Investor B Shares from its own resources at the time of sale. The Distributor also normally pays the annual Investor B Shares service fee to dealers as a shareholder servicing fee on a monthly basis. The Distributor normally retains the Investor B Shares distribution fee.

The Distributor currently pays dealers a sales concession of 1.00% of the purchase price of Investor C Shares from its own resources at the time of sale. The Distributor pays the annual Investor C Shares distribution fee and the annual Investor C Shares service fee as an ongoing concession and as a shareholder servicing fee, respectively, to dealers for Investor C Shares held for over a year and normally retains the Investor C Shares distribution fee and service fee during the ﬁrst year after purchase. For certain employer-sponsored retirement plans, the Distributor will pay the full Investor C Shares distribution fee and service fee to dealers beginning in the ﬁrst year after purchase in lieu of paying the sales concession. This may depend on the policies, procedures and trading platforms of your Financial Intermediary; consult your financial adviser.

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Investor B Shares (offered only by Mid-Cap Growth Equity)

If you redeem Investor B Shares within six years after purchase, you may be charged a deferred sales charge. No deferred sales charge applies to shares that you buy through reinvestment of dividends or capital gains. When you redeem Investor B Shares, the redemption order is processed so that the lowest deferred sales charge is charged. Investor B Shares that are not subject to the deferred sales charge are redeemed first. After that, the Fund redeems the shares that have been held the longest. The amount of the charge gradually decreases as you hold your shares over time, according to the following schedule:

Years Since Purchase	Sales Charge ¹
0–1	4.50%
1–2	4.00%
2–3	3.50%
3–4	3.00%
4–5	2.00%
5–6	1.00%
6 and thereafter	0.00%

The percentage charge will apply to the lesser of the original cost of the shares being redeemed or the proceeds of your redemption. Not all BlackRock Funds have identical deferred sales charge schedules. If you exchange your shares for shares of another BlackRock Fund, the original deferred sales charge schedule will apply.

Any CDSC paid on a redemption of Investor B Shares expressed as a percentage of the applicable redemption amount may be higher or lower than the charge described due to rounding.

Your Investor B Shares convert automatically into Investor A Shares approximately eight years after purchase. Any Investor B Shares received through reinvestment of dividends paid on converting shares will also convert pro rata based on the amount of shares being converted. Investor A Shares are subject to lower annual expenses than Investor B Shares. The conversion of Investor B Shares to Investor A Shares is not a taxable event for Federal income tax purposes.

Different conversion schedules apply to Investor B Shares of different BlackRock Funds. For example, Investor B Shares of fixed-income funds typically convert approximately ten years after purchase compared to approximately eight years for equity funds. If you acquire your Investor B Shares in an exchange from another BlackRock Fund with a different conversion schedule, the conversion schedule that applies to the shares you acquire in the exchange will apply. The length of time that you hold both the original and exchanged Investor B Shares in both BlackRock Funds will count toward the conversion schedule. The conversion schedule may be modified in certain other cases as well.

Investor C Shares

If you redeem Investor C Shares within one year after purchase, you may be charged a deferred sales charge of 1.00%. The charge will apply to the lesser of the original cost of the shares being redeemed or the proceeds of your redemption. When you redeem Investor C Shares, the redemption order is processed so that the lowest deferred sales charge is charged. Investor C Shares that are not subject to the deferred sales charge are redeemed first. In addition, you will not be charged a deferred sales charge when you redeem shares that you acquire through reinvestment of Fund dividends or capital gains. Any CDSC paid on the redemptions of Investor C Shares expressed as a percentage of the applicable redemption amount may be higher or lower than the charge described due to rounding.

Investor C Shares do not offer a conversion privilege.

Contingent Deferred Sales Charge Waivers

The deferred sales charge relating to Investor Shares may be reduced or waived in certain circumstances, such as:

■	Redemptions of shares purchased through certain employer-sponsored retirement plans and rollovers of current investments in a Fund through such plans;
■	Exchanges pursuant to the exchange privilege, as described in “How to Buy, Sell, Exchange and Transfer Shares — How to Exchange Shares or Transfer your Account”;
■	Redemptions made in connection with minimum required distributions from IRA or 403(b)(7) accounts due to the shareholder reaching the age of 70½;
■	Certain post-retirement withdrawals from an IRA or other retirement plan if you are over 59½ years old and you purchased your shares prior to October 2, 2006;
■	Redemptions made with respect to certain retirement plans sponsored by a Fund, BlackRock or an affiliate;

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■	Redemptions resulting from shareholder death as long as the waiver request is made within one year of death or, if later, reasonably promptly following completion of probate (including in connection with the distribution of account assets to a beneficiary of the decedent);
■	Withdrawals resulting from shareholder disability (as defined in the Internal Revenue Code) as long as the disability arose subsequent to the purchase of the shares;
■	Involuntary redemptions made of shares in accounts with low balances;
■	Certain redemptions made through the Systematic Withdrawal Plan offered by a Fund, BlackRock or an affiliate;
■	Redemptions related to the payment of BNY Mellon Investment Servicing Trust Company custodial IRA fees; and
■	Redemptions when a shareholder can demonstrate hardship, in the absolute discretion of a Fund.

Institutional Shares

Institutional Shares are not subject to any sales charge. Only certain investors are eligible to buy Institutional Shares. Your Financial Intermediary can help you determine whether you are eligible to buy Institutional Shares. A Fund may permit a lower initial investment for certain investors if their purchase, combined with purchases by other investors received together by the Fund, meets the minimum investment requirement.

Eligible Institutional investors include the following:

■	Individuals and “Institutional Investors” with a minimum initial investment of $2 million who may purchase shares of a Fund through a Financial Intermediary that has entered into an agreement with the Distributor to purchase such shares;
■	Investors of Financial Intermediaries that: (i) charge such investors a fee for advisory, investment consulting, or similar services or (ii) have entered into an agreement with the Distributor to offer Institutional Shares through a no-load program or investment platform, in each case, with a minimum initial investment of $1,000;
■	Employer-sponsored retirement plans (not including SEP IRAs, SIMPLE IRAs or SARSEPs), state sponsored 529 college savings plans, collective trust funds, investment companies or other pooled investment vehicles, unaffiliated thrifts and unaffiliated banks and trust companies, each of which is not subject to any minimum initial investment and may purchase shares of a Fund through a Financial Intermediary that has entered into an agreement with the Distributor to purchase such shares;
■	Trust department clients of PNC Bank and Bank of America, N.A. and their affiliates for whom they (i) act in a fiduciary capacity (excluding participant directed employee benefit plans); (ii) otherwise have investment discretion; or (iii) act as custodian for at least $2 million in assets, who are not subject to any minimum initial investment;
■	Holders of certain Bank of America Corporation (“BofA Corp.”) sponsored unit investment trusts (“UITs”) who reinvest dividends received from such UITs in shares of the Fund, who are not subject to any minimum initial investment; and
■	Employees, officers and directors/trustees of BlackRock, Inc., BlackRock Funds, BofA Corp., PNC, Barclays or their respective affiliates, who are not subject to any minimum initial investment.

The Funds reserve the right to modify or waive the above-stated policies at any time.

Class R Shares (offered only by Mid-Cap Growth Equity)

Class R Shares are available only to certain employer-sponsored retirement plans. For this purpose, employer-sponsored retirement plans do not include SEP IRAs, SIMPLE IRAs or SARSEPs. If you buy Class R Shares, you will pay neither an initial sales charge nor a CDSC. However, Class R Shares are subject to a distribution fee of 0.25% per year and a service fee of 0.25% per year. Because these fees are paid out of the Fund’s assets on an ongoing basis, over time these fees increase the cost of your investment and may cost you more than paying other types of sales charges.

Class R Shares do not offer a conversion privilege.

The Distributor currently pays the annual Class R Shares distribution fee and annual Class R Shares service fee to dealers as an ongoing concession and as a shareholder servicing fee, respectively, on a monthly basis.

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Distribution and Shareholder Servicing Payments

Plan Payments

The Trust, on behalf of the Funds, has adopted a plan (the “Plan”) pursuant to Rule 12b-1 under the Investment Company Act with respect to the Investor Shares and Class R Shares that allows a Fund to pay distribution fees for the sale of its shares and/or shareholder servicing fees for certain services provided to its shareholders.

Under the Plan, Investor B, Investor C and Class R Shares pay a distribution fee to the Distributor and/or its affiliates, including PNC and its affiliates, for distribution and sales support services. The distribution fees may be used to pay the Distributor for distribution and sales support services and to pay the Distributor and BlackRock, PNC and their respective affiliates for sales support services provided and related expenses incurred in connection with the sale of Investor B, Investor C and Class R Shares. The distribution fees may also be used to pay Financial Intermediaries for sales support services and related expenses. All Investor B, Investor C and Class R Shares pay a maximum distribution fee per year that is a percentage of the average daily net asset value of the Investor B, Investor C and Class R Shares of the Fund. Institutional and Investor A Shares do not pay distribution fees.

Under the Plan, the Funds also pay shareholder servicing fees (also referred to as general shareholder liaison services fees) to Financial Intermediaries for providing support services to their customers who own Investor A, Investor B, Investor C and/or Class R Shares of the Fund. The shareholder servicing fee payment is calculated as a percentage of the average daily net asset value of Investor A, Investor B, Investor C and Class R Shares of the Fund. All Investor A, Investor B, Investor C and Class R Shares pay this shareholder servicing fee. Institutional Shares do not pay a shareholder servicing fee.

In return for the shareholder servicing fee, Financial Intermediaries (including BlackRock) may provide one or more of the following services to their customers who own Investor A, Investor B, Investor C and Class R Shares:

■	Answering customer inquiries regarding account status and history, the manner in which purchases, exchanges and redemptions or repurchases of shares may be effected and certain other matters pertaining to the customers’ investments;
■	Assisting customers in designating and changing dividend options, account designations and addresses; and

■	Providing other similar shareholder liaison services.

The shareholder servicing fees payable pursuant to the Plan are paid to compensate Financial Intermediaries for the administration and servicing of shareholder accounts and are not costs which are primarily intended to result in the sale of a Fund’s shares.

Because the fees paid by a Fund under the Plan are paid out of Fund 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. In addition, the distribution fees paid by Investor B, Investor C and Class R Shares may over time cost investors more than the front-end sales charge on Investor A Shares. For more information on the Plan, including a complete list of services provided thereunder, see the SAI.

Other Payments by the Funds

In addition to fees that a Fund may pay to a Financial Intermediary pursuant to the Plan and fees a Fund pays to its transfer agent, BNY Mellon Investment Servicing (US) Inc. (the “Transfer Agent”), BlackRock, on behalf of a Fund, may enter into non-Plan agreements with affiliated and unaffiliated Financial Intermediaries pursuant to which the Fund will pay a Financial Intermediary for administrative, networking, recordkeeping, sub-transfer agency, sub-accounting and/or shareholder services. These non-Plan payments are generally based on either (1) a percentage of the average daily net assets of Fund shareholders serviced by a Financial Intermediary or (2) a fixed dollar amount for each account serviced by a Financial Intermediary. The aggregate amount of these payments may be substantial.

Other Payments by BlackRock

From time to time, BlackRock, the Distributor or their affiliates also may pay a portion of the fees for administrative, networking, recordkeeping, sub-transfer agency, sub-accounting and shareholder services described above at its or their own expense and out of its or their profits. BlackRock, the Distributor and their affiliates may also compensate affiliated and unaffiliated Financial Intermediaries for the sale and distribution of shares of the Funds. These payments would be in addition to the Fund payments described in this prospectus and may be a fixed dollar amount, may be based on the number of customer accounts maintained by the Financial Intermediary, may be based on a percentage of the value of shares sold to, or held by, customers of the Financial Intermediary or may be calculated on another basis. The aggregate amount of these payments by BlackRock, the Distributor and their affiliates may be substantial and, in some circumstances, may create an incentive for a Financial Intermediary, its employees or associated persons to recommend or sell shares of a Fund to you.

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Please contact your Financial Intermediary for details about payments it may receive from a Fund or from BlackRock, the Distributor or their affiliates. For more information, see the SAI.

How to Buy, Sell, Exchange and Transfer Shares

The chart on the following pages summarizes how to buy, sell, exchange and transfer shares through your Financial Intermediary. You may also buy, sell, exchange and transfer shares through BlackRock if your account is held directly with BlackRock. To learn more about buying, selling, exchanging or transferring shares through BlackRock, call (800) 441-7762. Because the selection of a mutual fund involves many considerations, your Financial Intermediary may help you with this decision.

With certain limited exceptions, the Funds are generally available only to investors residing in the United States and may not be distributed by a foreign Financial Intermediary. Under this policy, in order to accept new accounts or additional investments (including by way of exchange from another BlackRock Fund) into existing accounts, each Fund generally requires that (i) a shareholder that is a natural person be a U.S. citizen or resident alien, in each case residing within the United States or a U.S. territory (including APO/FPO/DPO addresses), and have a valid U.S. taxpayer identification number, and (ii) a Financial Intermediary or a shareholder that is an entity be domiciled in the United States and have a valid U.S. taxpayer identification number or be domiciled in a U.S. territory and have a valid U.S. taxpayer identification number or IRS Form W-8. Any existing account that is updated to reflect a non-U.S. address will also be restricted from making additional investments.

Each Fund may reject any purchase order, modify or waive the minimum initial or subsequent investment requirements for any shareholders and suspend and resume the sale of any share class of the Fund at any time for any reason. In addition, the Funds may waive certain requirements regarding the purchase, sale, exchange or transfer of shares described below.

Under certain circumstances, if no activity occurs in an account within a time period specified by state law, a shareholder’s shares in a Fund may be transferred to that state.

How to Buy Shares

	Your Choices	Important Information for You to Know
Initial Purchase	First, select the share class appropriate for you	Refer to the “Share Classes at a Glance” table in this prospectus (be sure to read this prospectus carefully). When you place your initial order, you must indicate which share class you select (if you do not specify a share class and do not qualify to purchase Institutional Shares, you will receive Investor A Shares). Certain factors, such as the amount of your investment, your time frame for investing, and your financial goals, may affect which share class you choose. Your Financial Intermediary can help you determine which share class is appropriate for you. Class R Shares are available only to certain retirement and other similar plans.
	Next, determine the amount of your investment	Refer to the minimum initial investment in the “Share Classes at a Glance” table of this prospectus. Be sure to note the maximum investment amounts in Investor C Shares. See “Account Information — Details About the Share Classes” for information on a lower initial investment requirement for certain Fund investors if their purchase, combined with purchases by other investors received together by the Fund, meets the minimum investment requirement.
	Have your Financial Intermediary submit your purchase order	The price of your shares is based on the next calculation of the Fund’s net asset value after your order is placed. Any purchase orders placed prior to the close of business on the New York Stock Exchange (the “NYSE”) (generally 4:00 p.m. Eastern time) will be priced at the net asset value determined that day. Certain Financial Intermediaries, however, may require submission of orders prior to that time. Purchase orders placed after that time will be priced at the net asset value determined on the next business day. A broker dealer or financial institution maintaining the account in which you hold shares may charge a separate account, service or transaction fee on the purchase or sale of Fund shares that would be in addition to the fees and expenses shown in the Fund’s “Fees and Expenses” table.

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	Your Choices	Important Information for You to Know
Initial Purchase (continued)	Have your Financial Intermediary submit your purchase order (continued)	The Fund may reject any order to buy shares and may suspend the sale of shares at any time. Certain Financial Intermediaries may charge a processing fee to confirm a purchase.
	Or contact BlackRock (for accounts held directly with BlackRock)	To purchase shares directly from BlackRock, call (800) 441-7762 and request a new account application. Mail the completed application along with a check payable to “BlackRock Funds” to the Transfer Agent at the address on the application.
Add to Your Investment	Purchase additional shares	For Investor A and Investor C Shares, the minimum investment for additional purchases is generally $50 for all accounts (with the exception of certain employer-sponsored retirement plans which may have a lower minimum for additional purchases). The minimums for additional purchases may be waived under certain circumstances. Institutional and Class R Shares have no minimum for additional purchases.
	Have your Financial Intermediary submit your purchase order for additional shares	To purchase additional shares you may contact your Financial Intermediary. For more details on purchasing by Internet see below.
	Or contact BlackRock (for accounts held directly with BlackRock)	Purchase by Telephone: Call (800) 441-7762 and speak with one of our representatives. The Fund has the right to reject any telephone request for any reason. Purchase in Writing: You may send a written request to BlackRock at the address on the back cover of this prospectus. Purchase by VRU: Investor Shares may also be purchased by use of the Fund’s automated voice response unit (“VRU”) service at (800) 441-7762. Purchase by Internet: You may purchase your shares, and view activity in your account, by logging onto the BlackRock website at www.blackrock.com/funds. Purchases made on the Internet using Automated Clearing House (“ACH”) will have a trade date that is the day after the purchase is made. Certain institutional clients’ purchase orders of Institutional Shares placed by wire prior to the close of business on the NYSE will be priced at the net asset value determined that day. Contact your Financial Intermediary or BlackRock for further information. The Fund limits Internet purchases in Investor Shares of the Fund to $25,000 per trade. Different maximums may apply to certain institutional investors. Please read the On-Line Services Disclosure Statement and User Agreement, the Terms and Conditions page and the Consent to Electronic Delivery Agreement (if you consent to electronic delivery), before attempting to transact online. The Fund employs reasonable procedures to confirm that transactions entered over the Internet are genuine. By entering into the User Agreement with the Fund in order to open an account through the website, the shareholder waives any right to reclaim any losses from the Fund or any of its affiliates incurred through fraudulent activity.
	Acquire additional shares by reinvesting dividends and capital gains	All dividends and capital gains distributions are automatically reinvested without a sales charge. To make any changes to your dividend and/or capital gains distributions options, please call (800) 441-7762, or contact your Financial Intermediary (if your account is not held directly with BlackRock).
	Participate in the Automatic Investment Plan (“AIP”)	BlackRock’s AIP allows you to invest a specific amount on a periodic basis from your checking or savings account into your investment account. Refer to the “Account Services and Privileges” section of this prospectus for additional information.

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	Your Choices	Important Information for You to Know
How to Pay for Shares	Making payment for purchases	Payment for an order must be made in Federal funds or other immediately available funds by the time specified by your Financial Intermediary, but in no event later than 4:00 p.m. (Eastern time) on the third business day (in the case of Investor Shares) or the first business day (in the case of Institutional Shares) following BlackRock’s receipt of the order. If payment is not received by this time, the order will be canceled, and you and your Financial Intermediary will be responsible for any loss to the Fund. For shares purchased directly from the Fund, a check payable to BlackRock Funds which bears the name of the Fund you are purchasing must accompany a completed purchase application. There is a $20 fee for each purchase check that is returned due to insufficient funds. The Fund does not accept third-party checks. You may also wire Federal funds to the Fund to purchase shares, but you must call (800) 441-7762 before doing so to confirm the wiring instructions.

How to Sell Shares

	Your Choices	Important Information for You to Know
Full or Partial Redemption of Shares	Have your Financial Intermediary submit your sales order	You can make redemption requests through your Financial Intermediary. Shareholders should indicate whether they are redeeming Investor A, Investor B, Investor C, Institutional or Class R Shares. The price of your shares is based on the next calculation of the Fund’s net asset value after your order is placed. For your redemption request to be priced at the net asset value on the day of your request, you must submit your request to your Financial Intermediary prior to that day’s close of business on the NYSE (generally 4:00 p.m. Eastern time). Certain Financial Intermediaries, however, may require submission of orders prior to that time. Any redemption request placed after that time will be priced at the net asset value at the close of business on the next business day. Certain Financial Intermediaries may charge a fee to process a redemption of shares. The Fund may reject an order to sell shares under certain circumstances.
	Selling shares held directly with BlackRock	Methods of Redeeming Redeem by Telephone: You may redeem Investor Shares held at BlackRock by telephone request if certain conditions are met and if the amount being sold is less than (i) $100,000 for payments by check or (ii) $250,000 for payments through ACH or wire transfer. Certain redemption requests, such as those in excess of these amounts, must be in writing with a medallion signature guarantee. For Institutional Shares, certain redemption requests may require written instructions with a medallion signature guarantee. Call (800) 441-7762 for details. You can obtain a medallion signature guarantee stamp from a bank, securities dealer, securities broker, credit union, savings and loan association, national securities exchange or registered securities association. A notary public seal will not be acceptable. The Fund, its administrators and the Distributor will employ reasonable procedures to confirm that instructions communicated by telephone are genuine. The Fund and its service providers will not be liable for any loss, liability, cost or expense for acting upon telephone instructions that are reasonably believed to be genuine in accordance with such procedures. The Fund may refuse a telephone redemption request if it believes it is advisable to do so. During periods of substantial economic or market change, telephone redemptions may be difficult to complete. Please find alternative redemption methods below. Redeem by VRU: Investor Shares may also be redeemed by use of the Fund’s automated VRU service. Payment for Investor Shares redeemed by the VRU service may be made for non-retirement accounts in

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	Your Choices	Important Information for You to Know
Full or Partial Redemption of Shares (continued)	Selling shares held directly with BlackRock (continued)	amounts up to $25,000, either through check, ACH or wire. Redeem by Internet: You may redeem in your account, by logging onto the BlackRock website at www.blackrock.com/funds. Proceeds from Internet redemptions may be sent via check, ACH or wire to the bank account of record. Payment for Investor Shares redeemed by Internet may be made for non-retirement accounts in amounts up to $25,000, either through check, ACH or wire. Different maximums may apply to investors in Institutional Shares. Redeem in Writing: You may sell shares held at BlackRock by writing to BlackRock, P.O. Box 9819, Providence, Rhode Island 02940-8019 or for overnight delivery, 4400 Computer Drive, Westborough, Massachusetts 01588. All shareholders on the account must sign the letter. A medallion signature guarantee will generally be required but may be waived in certain limited circumstances. You can obtain a medallion signature guarantee stamp from a bank, securities dealer, securities broker, credit union, savings and loan association, national securities exchange or registered securities association. A notary public seal will not be acceptable. If you hold stock certificates, return the certificates with the letter. Proceeds from redemptions may be sent via check, ACH or wire to the bank account of record. Payment of Redemption Proceeds Redemption proceeds may be paid by check or, if the Fund has verified banking information on file, through ACH or by wire transfer. Payment by Check: BlackRock will normally mail redemption proceeds within seven days following receipt of a properly completed request. Shares can be redeemed by telephone and the proceeds sent by check to the shareholder at the address on record. Shareholders will pay $15 for redemption proceeds sent by check via overnight mail. You are responsible for any additional charges imposed by your bank for this service. The Fund reserves the right to reinvest any dividend or distribution amounts (e.g., income dividends or capital gains) which you have elected to receive by check should your check be returned as undeliverable or remain uncashed for more than 6 months. No interest will accrue on amounts represented by uncashed checks. Your check will be reinvested in your account at the net asset value next calculated, on the day of the investment. When reinvested, those amounts are subject to the risk of loss like any fund investment. If you elect to receive distributions in cash and a check remains undeliverable or uncashed for more than 6 months, your cash election may also be changed and automatically to reinvest and your future dividend and capital gains distributions will be reinvested in the Fund at the net asset value as of the date of payment of the distribution. Payment by Wire Transfer: Payment for redeemed shares for which a redemption order is received before 4:00 p.m. (Eastern time) on a business day is normally made in Federal funds wired to the redeeming shareholder on the next business day, provided that the Fund’s custodian is also open for business. Payment for redemption orders received after 4:00 p.m. (Eastern time) or on a day when the Fund’s custodian is closed is normally wired in Federal funds on the next business day following redemption on which the Fund’s custodian is open for business. The Fund reserves the right to wire redemption proceeds within seven days after receiving a redemption order if, in the judgment of the Fund, an earlier payment could adversely affect the Fund. If a shareholder has given authorization for expedited redemption, shares can be redeemed by Federal wire transfer to a single previously designated bank account. Shareholders will pay $7.50 for redemption proceeds sent by Federal wire transfer. You are responsible for any additional charges imposed by your bank for this service. No charge for wiring redemption payments with respect to Institutional Shares is imposed by the Fund.

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	Your Choices	Important Information for You to Know
Full or Partial Redemption of Shares (continued)	Selling shares held directly with BlackRock (continued)	The Fund is not responsible for the efficiency of the Federal wire system or the shareholder’s firm or bank. To change the name of the single, designated bank account to receive wire redemption proceeds, it is necessary to send a written request to the Fund at the address on the back cover of this prospectus. Payment by ACH: Redemption proceeds may be sent to the shareholder’s bank account (checking or savings) via ACH. Payment for redeemed shares for which a redemption order is received before 4:00 p.m. (Eastern time) on a business day is normally sent to the redeeming shareholder the next business day, with receipt at the receiving bank within the next two business days (48-72 hours), provided that the Fund’s custodian is also open for business. Payment for redemption orders received after 4:00 p.m. (Eastern time) or on a day when the Fund’s custodian is closed is normally sent on the next business day following redemption on which the Fund’s custodian is open for business. The Fund reserves the right to send redemption proceeds within seven days after receiving a redemption order if, in the judgment of the Fund, an earlier payment could adversely affect the Fund. No charge for sending redemption payments via ACH is imposed by the Fund. *** If you make a redemption request before the Fund has collected payment for the purchase of shares, the Fund may delay mailing your proceeds. This delay will usually not exceed ten days.

How to Exchange Shares or Transfer Your Account

	Your Choices	Important Information for You to Know
Exchange Privilege	Selling shares of one fund to purchase shares of another BlackRock Fund (“exchanging”)	Investor A, Investor B, Investor C or Institutional Shares of the Fund are generally exchangeable for shares of the same class of another BlackRock Fund. No exchange privilege is available for Class R Shares. You can exchange $1,000 or more of Investor A, Investor B or Investor C Shares from one fund into the same class of another fund which offers that class of shares (you can exchange less than $1,000 of Investor A, Investor B or Investor C Shares if you already have an account in the fund into which you are exchanging). Investors who currently own Institutional Shares of the Fund may make exchanges into Institutional Shares of other BlackRock Funds except for investors holding shares through certain client accounts at Financial Intermediaries that are omnibus with the Fund and do not meet applicable minimums. There is no required minimum amount with respect to exchanges of Institutional Shares. You may only exchange into a share class and fund that are open to new investors or in which you have a current account if the fund is closed to new investors. Some of the BlackRock Funds impose a different initial or deferred sales charge schedule. The CDSC will continue to be measured from the date of the original purchase. The CDSC schedule applicable to your original purchase will apply to the shares you receive in the exchange and any subsequent exchange. To exercise the exchange privilege, you may contact your Financial Intermediary. Alternatively, if your account is held directly with BlackRock, you may: (i) call (800) 441-7762 and speak with one of our representatives, (ii) make the exchange via the Internet by accessing your account online at www.blackrock.com/funds, or (iii) send a written request to the Fund at the address on the back cover of this prospectus. Please note, if you indicated on your New Account Application that you did not want the Telephone Exchange Privilege, you will not be able to place exchanges via the telephone until you update this option either in writing or by calling (800) 441-7762. The Fund has the right to reject any telephone request for any reason.

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	Your Choices	Important Information for You to Know
Exchange Privilege (continued)	Selling shares of one fund to purchase shares of another BlackRock Fund (“exchanging”) (continued)	Although there is currently no limit on the number of exchanges that you can make, the exchange privilege may be modified or terminated at any time in the future. The Fund may suspend or terminate your exchange privilege at any time for any reason, including if the Fund believes, in its sole discretion, that you are engaging in market timing activities. See “Short-Term Trading Policy” below. For Federal income tax purposes a share exchange is a taxable event and a capital gain or loss may be realized. Please consult your tax adviser or other Financial Intermediary before making an exchange request.
Transfer Shares to Another Financial Intermediary	Transfer to a participating Financial Intermediary	You may transfer your shares of the Fund only to another Financial Intermediary that has entered into an agreement with the Distributor. Certain shareholder services may not be available for the transferred shares. All future trading of these assets must be coordinated by the receiving firm. If your account is held directly with BlackRock, you may call (800) 441-7762 with any questions; otherwise please contact your Financial Intermediary to accomplish the transfer of shares.
	Transfer to a non-participating Financial Intermediary	You must either: • Transfer your shares to an account with the Fund; or • Sell your shares, paying any applicable deferred sales charge. If your account is held directly with BlackRock, you may call (800) 441-7762 with any questions; otherwise please contact your Financial Intermediary to accomplish the transfer of shares.

Account Services and Privileges

The following table provides examples of account services and privileges available in your BlackRock account. Certain of these account services and privileges are only available to shareholders of Investor Shares whose accounts are held directly with BlackRock. If your account is held directly with BlackRock, please call (800) 441-7762 or visit www.blackrock.com/funds for additional information as well as forms and applications. Otherwise, please contact your Financial Intermediary for assistance in requesting one or more of the following services and privileges.

Automatic Investment Plan	Allows systematic investments on a periodic basis from your checking or savings account.	BlackRock’s AIP allows you to invest a specific amount on a periodic basis from your checking or savings account into your investment account. You may apply for this option upon account opening or by completing the Automatic Investment Plan application. The minimum investment amount for an automatic investment is $50 per portfolio. This is no longer available for purchase of Investor B Shares. If a shareholder has an AIP for purchase of Investor B Shares, the investor must redirect investment into Investor A or Investor C Shares.
Dividend Allocation Plan	Automatically invests your distributions into another BlackRock Fund of your choice pursuant to your instructions, without any fees or sales charges.	Dividend and capital gains distributions may be reinvested in your account to purchase additional shares or paid in cash. Using the Dividend Allocation Plan, you can direct your distributions to your bank account (checking or savings), to purchase shares of another fund at BlackRock without any fees or sales charges, or by check to a special payee. Please call (800) 441-7762 for details. If investing in another fund at BlackRock, the receiving fund must be open to new purchases.
EZ Trader	Allows an investor to purchase or sell Investor Shares by telephone or over the Internet through ACH.	(NOTE: This option is offered to shareholders whose accounts are held directly with BlackRock. Please speak with your Financial Intermediary if your account is held elsewhere.) Prior to establishing an EZ Trader account, please contact your bank to confirm that it is a member of the ACH system. Once confirmed, complete an application, making sure to include the appropriate bank information, and return the application to the address listed on the form. Prior to placing a telephone or Internet purchase or sale order, please call (800) 441-7762 to confirm that your bank information has been

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EZ Trader (continued)	Allows an investor to purchase or sell Investor Shares by telephone or over the Internet through ACH. (continued)	updated on your account. Once this is established, you may place your request to sell shares with a Fund by telephone or Internet. Proceeds will be sent to your pre-designated bank account.
Systematic Exchange Plan	This feature can be used by investors to systematically exchange money from one fund to up to four other funds.	A minimum of $10,000 in the initial BlackRock Fund is required, and investments in any additional funds must meet minimum initial investment requirements.
Systematic Withdrawal Plan (“SWP”)	This feature can be used by investors who want to receive regular distributions from their accounts.	To start an SWP, a shareholder must have a current investment of $10,000 or more in a BlackRock Fund. Shareholders can elect to receive cash payments of $50 or more at any interval they choose. Shareholders may sign up by completing the SWP Application Form, which may be obtained from BlackRock. Shareholders should realize that if withdrawals exceed income the invested principal in their account will be depleted. To participate in the SWP, shareholders must have their dividends reinvested. Shareholders may change or cancel the SWP at any time, with a minimum of 24 hours’ notice. If a shareholder purchases additional Investor A Shares of a fund at the same time he or she redeems shares through the SWP, that investor may lose money because of the sales charge involved. No CDSC will be assessed on redemptions of Investor A, Investor B or Investor C Shares made through the SWP that do not exceed 12% of the account’s net asset value on an annualized basis. For example, monthly, quarterly, and semi-annual SWP redemptions of Investor A, Investor B or Investor C Shares will not be subject to the CDSC if they do not exceed 1%, 3% and 6%, respectively, of an account’s net asset value on the redemption date. SWP redemptions of Investor A, Investor B or Investor C Shares in excess of this limit will still pay any applicable CDSC. Ask your Financial Intermediary for details.
Reinstatement Privilege		If you redeem Investor A or Institutional Shares, and within 60 days buy new Investor A Shares of the same or another BlackRock Fund (equal to all or a portion of the redemption amount), you will not pay a sales charge on the new purchase amount. This right may be exercised once a year and within 60 days of the redemption, provided that the Investor A Share class of that fund is currently open to new investors or the shareholder has a current account in that closed fund. Shares will be purchased at the net asset value calculated at the close of trading on the day the request is received. To exercise this privilege, the Fund must receive written notification from the shareholder of record or the Financial Intermediary of record, at the time of purchase. Investors should consult a tax adviser concerning the tax consequences of exercising this reinstatement privilege.

Funds’ Rights

Each Fund may:

■	Suspend the right of redemption if trading is halted or restricted on the NYSE or under other emergency conditions described in the Investment Company Act;
■	Postpone the date of payment upon redemption if trading is halted or restricted on the NYSE or under other emergency conditions described in the Investment Company Act or if a redemption request is made before the Fund has collected payment for the purchase of shares;
■	Redeem shares for property other than cash as may be permitted under the Investment Company Act; and
■	Redeem shares involuntarily in certain cases, such as when the value of a shareholder account falls below a specified level.

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may redeem the shares in your account if the net asset value of those shares in your account falls below $500 for any reason, including market fluctuation.

You will be notified that the value of your account is less than the Fund Minimum before the Fund makes any involuntary redemption. This notification will provide you with a 90 calendar day period to make an additional investment in order to bring the value of your account to at least $500 before the Fund makes an involuntary redemption. This involuntary redemption will not charge any deferred sales charge, and may not apply to accounts of certain employer-sponsored retirement plans (not including IRAs), qualified state tuition plan (529 Plan) accounts, and select fee-based programs at your Financial Intermediary.

Participation in Fee-Based Programs

If you participate in certain fee-based programs offered by BlackRock or an affiliate of BlackRock or by Financial Intermediaries that have agreements with the Distributor, you may be able to buy Institutional Shares, including by exchange from other share classes. Sales charges on the shares being exchanged may be reduced or waived under certain circumstances. You generally cannot transfer shares held through a fee-based program into another account. Instead, you will have to redeem your shares held through the program and purchase shares of another class, which may be subject to distribution and service fees. This may be a taxable event, and you will pay any applicable sales charges or redemption fees.

Shareholders that participate in a fee-based program generally have two options at termination. The program can be terminated and the shares liquidated, or the program can be terminated and the shares held in an account. In general, when a shareholder chooses to continue to hold the shares, whatever share class was held in the program can be held after termination. Shares that have been held for less than specified periods within the program may be subject to a fee upon redemption. Shareholders that held Investor A or Institutional Shares in the program are eligible to purchase additional shares of the respective share class of a Fund, but may be subject to upfront sales charges with respect to Investor A Shares. Additional purchases of Institutional Shares are permitted only if you have an existing position at the time of purchase or are otherwise eligible to purchase Institutional Shares.

Details about these features and the relevant charges are included in the client agreement for each fee-based program and are available from your Financial Intermediary.

Short-Term Trading Policy

The Board has determined that the interests of long-term shareholders and each Fund’s ability to manage its investments may be adversely affected when shares are repeatedly bought, sold or exchanged in response to short-term market fluctuations — also known as “market timing.” The Funds are not designed for market timing organizations or other entities using programmed or frequent purchases and sales or exchanges. The exchange privilege is not intended as a vehicle for short-term trading. Excessive purchase and sale or exchange activity may interfere with portfolio management, increase expenses and taxes and may have an adverse effect on the performance of a Fund and its returns to shareholders. For example, large flows of cash into and out of a Fund may require the management team to allocate a significant amount of assets to cash or other short-term investments or sell securities, rather than maintaining such assets in securities selected to achieve the Fund’s investment objective. Frequent trading may cause a Fund to sell securities at less favorable prices, and transaction costs, such as brokerage commissions, can reduce a Fund’s performance.

A fund’s investment in non-U.S. securities is subject to the risk that an investor may seek to take advantage of a delay between the change in value of a fund’s portfolio securities and the determination of the fund’s net asset value as a result of different closing times of U.S. and non-U.S. markets by buying or selling fund shares at a price that does not reflect their true value. A similar risk exists for funds that invest in securities of small capitalization companies, securities of issuers located in emerging markets or high yield securities (“junk bonds”) that are thinly traded and therefore may have actual values that differ from their market prices. This short-term arbitrage activity can reduce the return received by long-term shareholders. Each Fund will seek to eliminate these opportunities by using fair value pricing, as described in “Management of the Funds ― Valuation of Fund Investments” below.

Each Fund discourages market timing and seeks to prevent frequent purchases and sales or exchanges of Fund shares that it determines may be detrimental to a Fund or long-term shareholders. The Board has approved the policies discussed below to seek to deter market timing activity. The Board has not adopted any specific numerical restrictions on purchases, sales and exchanges of Fund shares because certain legitimate strategies will not result in harm to a Fund or its shareholders.

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If as a result of its own investigation, information provided by a Financial Intermediary or other third party, or otherwise, a Fund believes, in its sole discretion, that your short-term trading is excessive or that you are engaging in market timing activity, it reserves the right to reject any specific purchase or exchange order. If a Fund rejects your purchase or exchange order, you will not be able to execute that transaction, and the Fund will not be responsible for any losses you therefore may suffer. For transactions placed directly with a Fund, the Fund may consider the trading history of accounts under common ownership or control for the purpose of enforcing these policies. Transactions placed through the same Financial Intermediary on an omnibus basis may be deemed part of a group for the purpose of this policy and may be rejected in whole or in part by a Fund. Certain accounts, such as omnibus accounts and accounts at Financial Intermediaries, however, include multiple investors and such accounts typically provide a Fund with net purchase or redemption and exchange requests on any given day where purchases, redemptions and exchanges of shares are netted against one another and the identity of individual purchasers, redeemers and exchangers whose orders are aggregated may not be known by a Fund. While the Funds monitor for market timing activity, the Funds may be unable to identify such activities because the netting effect in omnibus accounts often makes it more difficult to locate and eliminate market timers from the Funds. The Distributor has entered into agreements with respect to Financial Intermediaries that maintain omnibus accounts with the Funds pursuant to which such Financial Intermediaries undertake to cooperate with the Distributor in monitoring purchase, exchange and redemption orders by their customers in order to detect and prevent short-term or excessive trading in the Fund’s shares through such accounts. Identification of market timers may also be limited by operational systems and technical limitations. In the event that a Financial Intermediary is determined by a Fund to be engaged in market timing or other improper trading activity, the Fund’s Distributor may terminate such Financial Intermediary’s agreement with the Distributor, suspend such Financial Intermediary’s trading privileges or take other appropriate actions.

There is no assurance that the methods described above will prevent market timing or other trading that may be deemed abusive.

The Funds may from time to time use other methods that they believe are appropriate to deter market timing or other trading activity that may be detrimental to a Fund or long-term shareholders.

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Management of the Funds

BlackRock

BlackRock manages each Fund’s investments and its business operations subject to the oversight of the Board. While BlackRock is ultimately responsible for the management of the Funds, it is able to draw upon the trading, research and expertise of its asset management affiliates for portfolio decisions and management with respect to certain portfolio securities. BlackRock is an indirect, wholly-owned subsidiary of BlackRock, Inc.

BlackRock, a registered investment adviser, was organized in 1994 to perform advisory services for investment companies. BlackRock and its affiliates had approximately $5.148 trillion in investment company and other portfolio assets under management as of December 31, 2016.

BlackRock serves as manager to each Fund pursuant to an investment advisory agreement (the “Management Agreement”). Pursuant to the Management Agreement, BlackRock is entitled to fees computed daily and payable monthly.

BlackRock has contractually agreed to waive the management fee with respect to any portion of each Fund’s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

BlackRock has voluntarily agreed to waive its management fees by the amount of investment advisory fees each Fund pays to BlackRock indirectly through its investment in affiliated money market funds (the “affiliated money market fund waiver”).

BlackRock has contractually agreed to cap net expenses for each Fund (excluding: (i) interest, taxes, dividends tied to short sales, brokerage commissions, and other expenditures which are capitalized in accordance with generally accepted accounting principles; (ii) expenses incurred directly or indirectly by the Fund as a result of investments in other investment companies and pooled investment vehicles; (iii) other expenses attributable to, and incurred as a result of, the Fund’s investments; and (iv) other extraordinary expenses (including litigation expenses) not incurred in the ordinary course of the Fund’s business, if any) of each share class of a Fund at the levels shown below and in the Fund’s fees and expenses table in the “Fund Overview” section of this prospectus. Items (i), (ii), (iii) and (iv) in the preceding sentence are referred to in this prospectus as “Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses.” To achieve these expense caps, BlackRock has agreed to waive and/or reimburse fees or expenses if the Fund’s operating expenses exceed a certain limit.

Mid-Cap Growth Equity Total Annual Management Fee

With respect to Mid-Cap Growth Equity, the maximum annual management fee that can be paid to BlackRock (as a percentage of average daily net assets) is calculated as follows:

Average Daily Net Assets	Rate of Management Fee
First $1 billion	0.800%
$1 billion – $2 billion	0.700%
$2 billion – $3 billion	0.650%
Greater than $3 billion	0.625%

With respect to Mid-Cap Growth Equity, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses to the amounts noted in the table below.

	Contractual Caps ¹ on Total Annual Fund Operating Expenses ² (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses)
Investor A	1.39%

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	Contractual Caps ¹ on Total Annual Fund Operating Expenses ² (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses)
Investor B	2.16%
Investor C	2.16%
Institutional	1.11%
Class R	1.65%

¹	The contractual caps are in effect through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

²	As a percentage of average daily net assets.

Advantage Small Cap Growth Total Annual Management Fee

With respect to Advantage Small Cap Growth, effective December 1, 2016, the maximum annual management fee that can be paid to BlackRock (as a percentage of average daily net assets) is calculated as follows:

Average Daily Net Assets	Rate of Management Fee
First $1 billion	0.45%
$1 billion – $3 billion	0.42%
$3 billion – $5 billion	0.41%
$5 billion – $10 billion	0.39%
Greater than $10 billion	0.38%

With respect to Advantage Small Cap Growth, prior to December 1, 2016, the maximum annual management fee that could be paid to BlackRock (as a percentage of average daily net assets) was calculated as follows:

Average Daily Net Assets	Rate of Management Fee
First $1 billion	0.550%
$1 billion – $2 billion	0.500%
$2 billion – $3 billion	0.475%
Greater than $3 billion	0.450%

With respect to Advantage Small Cap Growth, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses to the amounts noted in the table below.

	Contractual Caps ¹ on Total Annual Fund Operating Expenses ² (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses
Investor A Shares	0.75%
Investor C Shares	1.50%
Institutional Shares	0.50%

¹	The contractual caps are in effect through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested Trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
²	As a percentage of average daily net assets.

The amount of the contractual waivers and/or reimbursements of fees and expenses made pursuant to the contractual caps on net expenses will be reduced by the amount of the affiliated money market fund waiver.

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share class for the current fiscal year, provided that: (i) the Fund has more than $50 million in assets and (ii) BlackRock or an affiliate serves as the Fund’s manager or administrator. This repayment applies only to the contractual caps on net expenses and does not apply to the contractual management fee waiver described above or any voluntary waivers that may be in effect from time to time.

For the fiscal year ended September 30, 2016, each Fund paid BlackRock management fees, net of any applicable waiver, as a percentage of the Fund’s average daily net assets as follows:

Mid-Cap Growth Equity	0.80%
Advantage Small Cap Growth	0.55%

A discussion of the basis for the Board’s approval of the Management Agreement with respect to each of the Funds is included in the respective Fund’s annual shareholder report for the fiscal year ended September 30, 2016.

From time to time, a manager, analyst, or other employee of BlackRock or its affiliates may express views regarding a particular asset class, company, security, industry, or market sector. The views expressed by any such person are the views of only that individual as of the time expressed and do not necessarily represent the views of BlackRock or any other person within the BlackRock organization. Any such views are subject to change at any time based upon market or other conditions and BlackRock disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for the Funds are based on numerous factors, may not be relied on as an indication of trading intent on behalf of the Funds.

Legal Proceedings. On May 27, 2014, certain purported investors in the BlackRock Global Allocation Fund, Inc. (“Global Allocation”) and the BlackRock Equity Dividend Fund (“Equity Dividend”) filed a consolidated complaint (the “Consolidated Complaint”) in the United States District Court for the District of New Jersey against BlackRock Advisors, LLC, BlackRock Investment Management, LLC and BlackRock International Limited (collectively, the “Defendants”) under the caption In re BlackRock Mutual Funds Advisory Fee Litigation . The Consolidated Complaint, which purports to be brought derivatively on behalf of Global Allocation and Equity Dividend, alleges that the Defendants violated Section 36(b) of the Investment Company Act by receiving allegedly excessive investment advisory fees from Global Allocation and Equity Dividend. The Consolidated Complaint seeks, among other things, to recover on behalf of Global Allocation and Equity Dividend all allegedly excessive advisory fees from one year prior to the filing of the lawsuit and purported lost investment returns on those amounts, plus interest. The Defendants believe the claims in the Consolidated Complaint are without merit and intend to vigorously defend the action.

Portfolio Manager Information

Information regarding the portfolio managers of each Fund is set forth below. Further information regarding the portfolio managers, including other accounts managed, compensation, ownership of Fund shares, and possible conflicts of interest, is available in the SAI.

Mid-Cap Growth Equity

Portfolio Manager	Primary Role	Since	Title and Recent Biography
Lawrence Kemp	Jointly and primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Managing Director of BlackRock, Inc. since 2012; Prior to joining BlackRock, Inc., Mr. Kemp was a Managing Director at UBS Global Asset Management.
Kathryn Mongelli	Jointly and primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Director of BlackRock, Inc. since 2013; Vice President and Research Analyst at T. Rowe Price Associates from 2010 to 2013; Director of UBS Global Asset Management from 2005 to 2010.
Phil Ruvinsky	Jointly and primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Director of BlackRock, Inc. since 2013; Sector Head and Research Analyst at Surview Capital LLC from 2010 to 2013; Various positions, including Portfolio Manager and Investment Analyst, at UBS Global Asset Management from 2002 to 2010.

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Advantage Small Cap Growth

Portfolio Manager	Primary Role	Since	Title and Recent Biography
Travis Cooke, CFA	Primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Managing Director of BlackRock, Inc. since 2012; Director of BlackRock, Inc. from 2009 to 2011; Principal of Barclays Global Investors from 2002 to 2009.

Conflicts of Interest

The investment activities of BlackRock and its affiliates (including BlackRock, Inc. and PNC and their affiliates, directors, partners, trustees, managing members, officers and employees (collectively, the “Affiliates”)) in the management of, or their interest in, their own accounts and other accounts they manage, may present conflicts of interest that could disadvantage the Funds and their shareholders.

BlackRock and its Affiliates provide investment management services to other funds and discretionary managed accounts that follow investment programs similar to those of the Funds. BlackRock and its Affiliates are involved worldwide with a broad spectrum of financial services and asset management activities and may engage in the ordinary course of business in activities in which their interests or the interests of their clients may conflict with those of the Funds. One or more Affiliates act or may act as an investor, investment banker, research provider, investment manager, commodity pool operator, commodity trading advisor, financier, underwriter, adviser, market maker, trader, prime broker, lender, agent and principal, and have other direct and indirect interests in securities, currencies, commodities, derivatives and other instruments in which the Funds may directly or indirectly invest. Thus, it is likely that the Funds will have multiple business relationships with and will invest in, engage in transactions with, make voting decisions with respect to, or obtain services from, entities for which an Affiliate performs or seeks to perform investment banking or other services. Specifically, the Funds may invest in securities of, or engage in other transactions with, companies with which an Affiliate has developed or is trying to develop investment banking relationships or in which an Affiliate has significant debt or equity investments or other interests. The Funds also may invest in securities of, or engage in other transactions with, companies for which an Affiliate provides or may in the future provide research coverage. An Affiliate may have business relationships with, and purchase, or distribute or sell services or products from or to, distributors, consultants or others who recommend the Funds or who engage in transactions with or for the Funds, and may receive compensation for such services. The Funds may also make brokerage and other payments to Affiliates in connection with the Funds’ portfolio investment transactions. An Affiliate may engage in proprietary trading and advise accounts and funds that have investment objectives similar to those of the Funds and/or that engage in and compete for transactions in the same types of securities, currencies and other instruments as the Funds. This may include transactions in securities issued by other open-end and closed-end investment companies (which may include investment companies that are affiliated with the Funds and BlackRock, to the extent permitted under the Investment Company Act). The trading activities of these Affiliates are carried out without reference to positions held directly or indirectly by the Funds and may result in an Affiliate having positions in certain securities that are senior or junior to, or have interests different from or adverse to, the securities that are owned by the Funds.

No Affiliate is under any obligation to share any investment opportunity, idea or strategy with the Funds. As a result, an Affiliate may compete with the Funds for appropriate investment opportunities. The results of the Funds’ investment activities, therefore, may differ from those of an Affiliate and of other accounts managed by an Affiliate, and it is possible that the Funds could sustain losses during periods in which one or more Affiliates and other accounts achieve profits on their trading for proprietary or other accounts. The opposite result is also possible.

In addition, the Funds may, from time to time, enter into transactions in which an Affiliate or its other clients have an adverse interest. Furthermore, transactions undertaken by Affiliate-advised clients may adversely impact the Funds. Transactions by one or more Affiliate-advised clients or BlackRock may have the effect of diluting or otherwise disadvantaging the values, prices or investment strategies of the Funds. The Funds’ activities may be limited because of regulatory restrictions applicable to one or more Affiliates and/or their internal policies designed to comply with such restrictions.

Under a securities lending program approved by the Board, the Trust, on behalf of the Funds, has retained BlackRock Investment Management, LLC, an Affiliate of BlackRock, to serve as the securities lending agent for the Funds to the extent that the Funds participate in the securities lending program. For these services, the lending agent will receive a fee from the Funds, including a fee based on the returns earned on the Funds’ investment of the cash received as

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collateral for the loaned securities. In addition, one or more Affiliates may be among the entities to which the Funds may lend their portfolio securities under the securities lending program.

The activities of Affiliates may give rise to other conflicts of interest that could disadvantage the Funds and their shareholders. BlackRock has adopted policies and procedures designed to address these potential conflicts of interest. See the SAI for further information.

Valuation of Fund Investments

When you buy shares, you pay the net asset value, plus any applicable sales charge. This is the offering price. Shares are also redeemed at their net asset value, minus any applicable deferred sales charge or redemption fee. A Fund calculates the net asset value of each class of its shares each day the NYSE is open, generally as of the close of regular trading hours on the NYSE, based on prices at the time of closing. The NYSE generally closes at 4:00 p.m. (Eastern time). The net asset value used in determining your share price is the next one calculated after your purchase or redemption order is received.

Generally, Institutional Shares will have the highest net asset value because that class has the lowest expenses. Investor A Shares will have a higher net asset value than Investor B, Investor C or Class R Shares, and Class R Shares will have a higher net asset value than Investor B or Investor C Shares. Also, dividends paid on Investor A, Institutional and Class R Shares will generally be higher than dividends paid on Investor B and Investor C Shares because Investor A, Institutional and Class R Shares have lower expenses.

Equity securities and other instruments for which market quotations are readily available are valued at market value, which is generally determined using the last reported closing price or, if a reported closing price is not available, the last traded price on the exchange or market on which the security or instrument is primarily traded at the time of valuation. Each Fund values fixed-income portfolio securities and non-exchange traded derivatives using last available bid prices or current market quotations provided by dealers or prices (including evaluated prices) supplied by the Fund’s approved independent third-party pricing services, each in accordance with valuation procedures approved by the Board. Pricing services may use matrix pricing or valuation models that utilize certain inputs and assumptions to derive values. Pricing services generally value fixed-income securities assuming orderly transactions of institutional round lot size, but the Fund may hold or transact in such securities in smaller, odd lot sizes. Odd lots often trade at lower prices than institutional round lots. Short-term debt securities with remaining maturities of 60 days or less may be valued on the basis of amortized cost.

Foreign currency exchange rates are generally determined as of the close of business on the NYSE. Foreign securities owned by a Fund may trade on weekends or other days when the Fund does not price its shares. As a result, a Fund’s net asset value may change on days when you will not be able to purchase or redeem the Fund’s shares.

Generally, trading in foreign securities, U.S. Government securities, money market instruments and certain fixed-income securities is substantially completed each day at various times prior to the close of business on the NYSE. The values of such securities used in computing the net asset value of a Fund’s shares are determined as of such times.

When market quotations are not readily available or are not believed by BlackRock to be reliable, a Fund’s investments are valued at fair value. Fair value determinations are made by BlackRock in accordance with procedures approved by the Board. BlackRock may conclude that a market quotation is not readily available or is unreliable if a security or other asset or liability does not have a price source due to its lack of liquidity, if BlackRock believes a market quotation from a broker-dealer or other source is unreliable, where the security or other asset or other liability is thinly traded (e.g., municipal securities, certain small cap and emerging growth companies, and certain non-U.S. securities) or where there is a significant event subsequent to the most recent market quotation. For this purpose, a “significant event” is deemed to occur if BlackRock determines, in its business judgment prior to or at the time of pricing a Fund’s assets or liabilities, that it is likely that the event will cause a material change to the last closing market price of one or more assets or liabilities held by the Fund. For instance, significant events may occur between the foreign market close and the close of business on the NYSE that may not be reflected in the computation of the Funds’ net assets. If such event occurs, those instruments may be fair valued. Similarly, foreign securities whose values are affected by volatility that occurs in U.S. markets on a trading day after the close of foreign securities markets may be fair valued.

For certain foreign securities, a third-party vendor supplies evaluated, systematic fair value pricing based upon the movement of a proprietary multi-factor model after the relevant foreign markets have closed. This systematic fair value pricing methodology is designed to correlate the prices of foreign securities following the close of the local markets to the price that might have prevailed as of a Fund’s pricing time.

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Fair value represents a good faith approximation of the value of a security. The fair value of one or more securities may not, in retrospect, be the price at which those assets could have been sold during the period in which the particular fair values were used in determining a Fund’s net asset value.

Each Fund may accept orders from certain authorized Financial Intermediaries or their designees. Each Fund will be deemed to receive an order when accepted by the Financial Intermediary or designee, and the order will receive the net asset value next computed by the Fund after such acceptance. If the payment for a purchase order is not made by a designated later time, the order will be canceled and the Financial Intermediary could be held liable for any losses.

Dividends, Distributions and Taxes

BUYING A DIVIDEND

Unless your investment is in a tax-deferred account, you may want to avoid buying shares shortly before a Fund pays a dividend. The reason? If you buy shares when a Fund has declared but not yet distributed ordinary income or capital gains, you will pay the full price for the shares and then receive a portion of the price back in the form of a taxable dividend. Before investing you may want to consult your tax adviser.

Each Fund will distribute net investment income, if any, and net realized capital gains, if any, at least annually. Each Fund may also pay a special distribution at the end of the calendar year to comply with Federal tax requirements. Dividends may be reinvested automatically in shares of a Fund at net asset value or may be taken in cash. If you would like to receive dividends in cash, contact your Financial Intermediary or the applicable Fund. Although this cannot be predicted with any certainty, each Fund anticipates that a significant amount of its dividends, if any, will consist of capital gains. Capital gains may be taxable to you at different rates depending on how long the Fund held the assets sold.

You will pay tax on dividends from a Fund whether you receive them in cash or additional shares. If you redeem Fund shares or exchange them for shares of another fund, you generally will be treated as having sold your shares, and any gain on the transaction may be subject to tax. Certain dividend income received by a Fund, including dividends received from U.S. corporations and qualifying foreign corporations, and long-term capital gains are eligible for taxation at a maximum rate of 15% for individuals with incomes below approximately $415,000 ($465,000 if married filing jointly), amounts adjusted annually for inflation, and 20% for individuals with any income in excess of those amounts that is net long-term capital gain or qualified dividend income. To the extent a Fund makes any distributions derived from long-term capital gains and qualifying dividend income, such distributions will be eligible for taxation at the reduced rates.

By law, your dividends and redemption proceeds will be subject to a 28% withholding tax if you have not provided a taxpayer identification number or social security number or the number you have provided is incorrect.

If you are neither a tax resident nor a citizen of the United States or if you are a foreign entity, a Fund’s ordinary income dividends (which include distributions of net short-term capital gain) will generally be subject to a 30% U.S. withholding tax, unless a lower treaty rate applies. However, certain distributions reported by a Fund as either interest related dividends or short-term capital gain dividends and paid to a foreign shareholder may be eligible for an exemption from U.S. withholding tax.

A 30% withholding tax is currently imposed on U.S.-source dividends, interest and other income items, and will be imposed on proceeds from the sale, redemption or other disposition of property producing U.S.-source dividends and interest paid after December 31, 2018, to (i) foreign financial institutions, including non-U.S. investment funds, unless they agree to collect and disclose to the IRS information regarding their direct and indirect U.S. account holders and (ii) certain other foreign entities, unless they certify certain information regarding their direct and indirect U.S. owners. To avoid withholding, foreign financial institutions will need to (i) enter into agreements with the IRS that state that they will provide the IRS information, including the names, addresses and taxpayer identification numbers of direct and indirect U.S. account holders, comply with due diligence procedures with respect to the identification of U.S. accounts, report to the IRS certain information with respect to U.S. accounts, agree to withhold tax on certain payments made to non-compliant foreign financial institutions or to account holders that fail to provide the required information, and determine certain other information concerning their account holders, or (ii) in the event that an applicable intergovernmental agreement and implementing legislation are adopted, provide local revenue authorities with similar

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account holder information. Other foreign entities will need to either provide the name, address, and taxpayer identification number of each substantial U.S. owner or certifications of no substantial U.S. ownership unless certain exceptions apply.

Dividends and interest received by a Fund and capital gains recognized by the Fund may give rise to withholding and other taxes imposed by foreign countries. Tax conventions between certain countries and the United States may reduce or eliminate such taxes. You may be able to claim a credit or take a deduction for foreign taxes paid by a Fund if certain requirements are met.

This section summarizes some of the consequences under current Federal tax law of an investment in a Fund. It is not a substitute for individualized tax advice. Consult your tax adviser about the potential tax consequences of an investment in a Fund under all applicable tax laws.

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Financial Highlights

The Financial Highlights tables are intended to help you understand each Fund’s financial performance for the periods shown. Certain information reflects the financial results for a single Fund share. The total returns in the table represent the rate that an investor would have earned or lost on an investment in each indicated Fund (assuming reinvestment of all dividends and/or distributions). The information has been audited by Deloitte & Touche LLP, whose report, along with each Fund’s financial statements, is included in the indicated Fund’s Annual Report, which is available upon request.

BlackRock Mid-Cap Growth Equity Portfolio

	Institutional
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 16.42	$ 17.67	$ 18.22	$ 13.58	$ 11.10
Net investment income (loss) ¹	(0.12)	(0.11)	(0.12)	0.05	0.04
Net realized and unrealized gain	2.00	0.77	2.49	4.59	2.44
Net increase from investment operations	1.88	0.66	2.37	4.64	2.48
Distributions from net realized gain ²	(0.43)	(1.91)	(2.92)	—	—
Net asset value, end of year	$ 17.87	$ 16.42	$ 17.67	$ 18.22	$ 13.58
Total Return ³
Based on net asset value	11.60%	4.37%	14.70%	34.17%	22.34%
Ratios to Average Net Assets
Total expenses ⁴	1.11%	1.06%	1.11%	1.13%	1.11%
Total expenses after fees waived, reimbursed and paid indirectly	1.08%	1.05%	1.10%	1.11%	1.07%
Net investment income (loss)	(0.71)%	(0.61)%	(0.68)%	0.30%	0.27%
Supplemental Data
Net assets, end of year (000)	$99,759	$84,605	$33,448	$21,485	$18,526
Portfolio turnover rate	81%	95%	123%	160%	88%

¹	Based on average shares outstanding.
²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, assumes the reinvestment of distributions.

⁴	Includes recoupment of past waived and/or reimbursed fees. Excluding the recoupment of past waived and/or reimbursed fees, the ratios were as follows:

	Year Ended September 30,
	2016	2015	2014	2013	2012
Expense ratios	1.10%	1.06%	1.08%	1.11%	1.11%

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Financial Highlights (continued)

BlackRock Mid-Cap Growth Equity Portfolio (continued)

	Investor A
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 14.43	$ 15.78	$ 16.56	$ 12.38	$ 10.15
Net investment income (loss) ¹	(0.15)	(0.14)	(0.16)	0.00 ²	(0.01)
Net realized and unrealized gain	1.76	0.67	2.24	4.18	2.24
Net increase from investment operations	1.61	0.53	2.08	4.18	2.23
Distributions from net realized gain ³	(0.38)	(1.88)	(2.86)	—	—
Net asset value, end of year	$ 15.66	$ 14.43	$ 15.78	$ 16.56	$ 12.38
Total Return ⁴
Based on net asset value	11.29%	4.01%	14.38%	33.76%	21.97%
Ratios to Average Net Assets
Total expenses	1.45%	1.43% ⁵	1.48%	1.55%	1.55%
Total expenses after fees waived, reimbursed and paid indirectly	1.39%	1.39%	1.39%	1.39%	1.39%
Net investment income (loss)	(1.02)%	(0.89)%	(1.01)%	0.03%	(0.06)%
Supplemental Data
Net assets, end of year (000)	$394,544	$350,962	$315,762	$282,726	$237,748
Portfolio turnover rate	81%	95%	123%	160%	88%

¹	Based on average shares outstanding.
²	Amount is less than $0.005 per share.
³	Distributions for annual periods determined in accordance with federal income tax regulations.
⁴	Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.

⁵	Includes recoupment of past waived and/or reimbursed fees. There was no financial impact to the expense ratios for the year ended September 30, 2015.

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Financial Highlights (continued)

BlackRock Mid-Cap Growth Equity Portfolio (continued)

	Investor B
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$11.77	$13.22	$14.27	$10.75	$ 8.88
Net investment loss ¹	(0.21)	(0.21)	(0.24)	(0.08)	(0.09)
Net realized and unrealized gain	1.42	0.55	1.90	3.60	1.96
Net increase from investment operations	1.21	0.34	1.66	3.52	1.87
Distributions from net realized gain ²	(0.31)	(1.79)	(2.71)	—	—
Net asset value, end of year	$12.67	$11.77	$13.22	$14.27	$10.75
Total Return ³
Based on net asset value	10.40%	3.23%	13.47%	32.74%	21.06%
Ratios to Average Net Assets
Total expenses	3.20%	2.75%	2.66%	2.70%	2.59%
Total expenses after fees waived, reimbursed and paid indirectly	2.16%	2.16%	2.16%	2.16%	2.16%
Net investment loss	(1.80)%	(1.65)%	(1.79)%	(0.66)%	(0.88)%
Supplemental Data
Net assets, end of year (000)	$1,178	$2,069	$3,313	$4,330	$5,123
Portfolio turnover rate	81%	95%	123%	160%	88%

¹	Based on average shares outstanding.
²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.

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Financial Highlights (continued)

BlackRock Mid-Cap Growth Equity Portfolio (continued)

	Investor C
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 11.68	$ 13.16	$ 14.28	$ 10.75	$ 8.89
Net investment loss ¹	(0.20)	(0.21)	(0.23)	(0.09)	(0.08)
Net realized and unrealized gain	1.41	0.55	1.88	3.62	1.94
Net increase from investment operations	1.21	0.34	1.65	3.53	1.86
Distributions from net realized gain ²	(0.34)	(1.82)	(2.77)	—	—
Net asset value, end of year	$ 12.55	$ 11.68	$ 13.16	$ 14.28	$ 10.75
Total Return ³
Based on net asset value	10.48%	3.23%	13.42%	32.84%	20.92%
Ratios to Average Net Assets
Total expenses	2.14% ⁴	2.16% ⁴	2.17% ⁴	2.23% ⁴	2.31%
Total expenses after fees waived, reimbursed and paid indirectly	2.12%	2.16%	2.16%	2.16%	2.16%
Net investment loss	(1.75)%	(1.67)%	(1.77)%	(0.75)%	(0.81)%
Supplemental Data
Net assets, end of year (000)	$52,723	$44,719	$31,257	$23,959	$18,774
Portfolio turnover rate	81%	95%	123%	160%	88%

¹	Based on average shares outstanding.

²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.

⁴	Includes recoupment of past waived and/or reimbursed fees. Excluding the recoupment of past waived and/or reimbursed fees, the ratios were as follows:

	Year Ended September 30,
	2016	2015	2014	2013	2012
Expense ratios	2.13%	2.12%	2.16%	2.23%	—

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Financial Highlights (continued)

BlackRock Mid-Cap Growth Equity Portfolio (concluded)

	Class R
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$14.27	$15.63	$16.44	$12.32	$10.13
Net investment loss ¹	(0.18)	(0.18)	(0.20)	(0.04)	(0.03)
Net realized and unrealized gain	1.72	0.68	2.22	4.16	2.22
Net increase from investment operations	1.54	0.50	2.02	4.12	2.19
Distributions from net realized gain ²	(0.34)	(1.86)	(2.83)	—	—
Net asset value, end of year	$15.47	$14.27	$15.63	$16.44	$12.32
Total Return ³
Based on net asset value	10.94%	3.79%	14.03%	33.44%	21.62%
Ratios to Average Net Assets
Total expenses ⁴	1.78%	1.73%	1.74% ⁴	1.74%	1.84%
Total expenses after fees waived, reimbursed and paid indirectly	1.65%	1.65%	1.65%	1.65%	1.65%
Net investment loss	(1.28)%	(1.15)%	(1.26)%	(0.26)%	(0.28)%
Supplemental Data
Net assets, end of year (000)	$7,646	$7,495	$7,704	$9,352	$6,663
Portfolio turnover rate	81%	95%	123%	160%	88%

¹	Based on average shares outstanding.
²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, assumes the reinvestment of distributions.

⁴	Includes recoupment of past waived and/or reimbursed fees with no financial impact to the expense ratios.

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Financial Highlights (continued)

BlackRock Advantage Small Cap Growth Fund

	Institutional
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 17.82	$ 22.28	$ 29.86	$ 26.67	$ 20.09
Net investment income (loss) ¹	0.03	0.02	(0.06)	0.01	0.04
Net realized and unrealized gain	1.11	0.49	2.58	5.90	7.14
Net increase from investment operations	1.14	0.51	2.52	5.91	7.18
Distributions: ²
From net investment income	—	—	—	(0.07)	—
From net realized gain	(1.02)	(4.97)	(10.10)	(2.65)	(0.60)
Total distributions	(1.02)	(4.97)	(10.10)	(2.72)	(0.60)
Net asset value, end of year	$ 17.94	$ 17.82	$ 22.28	$ 29.86	$ 26.67
Total Return ³
Based on net asset value	6.81%	2.35%	8.90%	25.36%	36.16%
Ratios to Average Net Assets
Total expenses	0.86%	0.82%	0.87% ⁴	0.82%	0.82%
Total expenses after fees waived, reimbursed and paid indirectly	0.86%	0.82%	0.87%	0.82%	0.82%
Net investment income (loss)	0.20%	0.12%	(0.24)%	0.06%	0.15%
Supplemental Data
Net assets, end of year (000)	$490,215	$503,423	$454,928	$862,261	$979,582
Portfolio turnover rate	103%	137%	132%	175%	147%

¹	Based on average shares outstanding.

²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, assumes the reinvestment of distributions.

⁴	Includes recoupment of past waived and/or reimbursed fees with no financial impact to the expense ratios.

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Financial Highlights (continued)

BlackRock Advantage Small Cap Growth Fund (continued)

	Investor A
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 14.38	$ 18.91	$ 26.75	$ 24.17	$ 18.31
Net investment loss ¹	(0.01)	(0.03)	(0.12)	(0.06)	(0.04)
Net realized and unrealized gain	0.88	0.41	2.31	5.27	6.50
Net increase from investment operations	0.87	0.38	2.19	5.21	6.46
Distributions from net realized gain ²	(0.97)	(4.91)	(10.03)	(2.63)	(0.60)
Net asset value, end of year	$ 14.28	$ 14.38	$ 18.91	$ 26.75	$ 24.17
Total Return ³
Based on net asset value	6.57%	2.01%	8.60%	24.91%	35.73%
Ratios to Average Net Assets
Total expenses	1.14%	1.13%	1.15%	1.14%	1.17%
Total expenses after fees waived, reimbursed and paid indirectly	1.14%	1.13%	1.15%	1.14%	1.17%
Net investment loss	(0.09)%	(0.17)%	(0.56)%	(0.25)%	(0.18)%
Supplemental Data
Net assets, end of year (000)	$250,357	$255,692	$282,684	$332,978	$352,073
Portfolio turnover rate	103%	137%	132%	175%	147%

¹	Based on average shares outstanding.

²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.

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Financial Highlights (concluded)

BlackRock Advantage Small Cap Growth Fund (concluded)

	Investor C
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 9.37	$ 13.99	$ 22.23	$ 20.50	$ 15.73
Net investment loss ¹	(0.08)	(0.10)	(0.21)	(0.21)	(0.19)
Net realized and unrealized gain	0.56	0.30	1.89	4.38	5.56
Net increase from investment operations	0.48	0.20	1.68	4.17	5.37
Distributions from net realized gain ²	(0.97)	(4.82)	(9.92)	(2.44)	(0.60)
Net asset value, end of year	$ 8.88	$ 9.37	$ 13.99	$ 22.23	$ 20.50
Total Return ³
Based on net asset value	5.72%	1.19%	7.73%	23.91%	34.63%
Ratios to Average Net Assets
Total expenses	1.95%	1.91%	1.93%	1.95%	1.99%
Total expenses after fees waived, reimbursed and paid indirectly	1.95%	1.91%	1.93%	1.95%	1.99%
Net investment loss	(0.90)%	(0.96)%	(1.33)%	(1.06)%	(0.99)%
Supplemental Data
Net assets, end of year (000)	$23,689	$28,109	$32,598	$33,193	$28,787
Portfolio turnover rate	103%	137%	132%	175%	147%

¹	Based on average shares outstanding.

²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.

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General Information

Shareholder Documents

Electronic Access to Annual Reports, Semi-Annual Reports and Prospectuses

Electronic copies of most financial reports and prospectuses are available on BlackRock’s website. Shareholders can sign up for e-mail notifications of annual and semi-annual reports and prospectuses by enrolling in the Funds’ electronic delivery program. To enroll:

Shareholders Who Hold Accounts with Investment Advisers, Banks or Brokerages: Please contact your Financial Intermediary. Please note that not all investment advisers, banks or brokerages may offer this service.

Shareholders Who Hold Accounts Directly With BlackRock:

■	Access the BlackRock website at http://www.blackrock.com/edelivery; and
■	Log into your account

Delivery of Shareholder Documents

Each Fund delivers only one copy of shareholder documents, including prospectuses, shareholder reports and proxy statements, to shareholders with multiple accounts at the same address. This practice is known as “householding” and is intended to eliminate duplicate mailings and reduce expenses. Mailings of your shareholder documents may be householded indefinitely unless you instruct us otherwise. If you do not want the mailing of these documents to be combined with those for other members of your household, please contact your Fund at (800) 441-7762.

Certain Fund Policies

Anti-Money Laundering Requirements

Each Fund is subject to the USA PATRIOT Act (the “Patriot Act”). The Patriot Act is intended to prevent the use of the U.S. financial system in furtherance of money laundering, terrorism or other illicit activities. Pursuant to requirements under the Patriot Act, each Fund is required to obtain sufficient information from shareholders to enable it to form a reasonable belief that it knows the true identity of its shareholders. This information will be used to verify the identity of investors or, in some cases, the status of Financial Intermediaries. Such information may be verified using third-party sources. This information will be used only for compliance with the Patriot Act or other applicable laws, regulations and rules in connection with money laundering, terrorism, or economic sanctions.

Each Fund reserves the right to reject purchase orders from persons who have not submitted information sufficient to allow the Fund to verify their identity. Each Fund also reserves the right to redeem any amounts in the Fund from persons whose identity it is unable to verify on a timely basis. It is each Fund’s policy to cooperate fully with appropriate regulators in any investigations conducted with respect to potential money laundering, terrorism, or other illicit activities.

BlackRock Privacy Principles

BlackRock is committed to maintaining the privacy of its current and former fund investors and individual clients (collectively, “Clients”) and to safeguarding their non-public personal information. The following information is provided to help you understand what personal information BlackRock collects, how we protect that information and why in certain cases we share such information with select parties.

If you are located in a jurisdiction where specific laws, rules or regulations require BlackRock to provide you with additional or different privacy-related rights beyond what is set forth below, then BlackRock will comply with those specific laws, rules or regulations.

BlackRock obtains or verifies personal non-public information from and about you from different sources, including the following: (i) information we receive from you or, if applicable, your Financial Intermediary, on applications, forms or other documents; (ii) information about your transactions with us, our affiliates, or others; (iii) information we receive from a consumer reporting agency; and (iv) from visits to our website.

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BlackRock does not sell or disclose to non-affiliated third parties any non-public personal information about its Clients, except as permitted by law, or as is necessary to respond to regulatory requests or to service Client accounts. These non-affiliated third parties are required to protect the confidentiality and security of this information and to use it only for its intended purpose.

We may share information with our affiliates to service your account or to provide you with information about other BlackRock products or services that may be of interest to you. In addition, BlackRock restricts access to non-public personal information about its Clients to those BlackRock employees with a legitimate business need for the information. BlackRock maintains physical, electronic and procedural safeguards that are designed to protect the non-public personal information of its Clients, including procedures relating to the proper storage and disposal of such information.

Statement of Additional Information

If you would like further information about each Fund, including how each Fund invests, please see the SAI.

For a discussion of each Fund’s policies and procedures regarding the selective disclosure of its portfolio holdings, please see the SAI. The Funds make their top ten holdings available on a monthly basis at www.blackrock.com generally within 5 business days after the end of the month to which the information applies.

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Glossary

This glossary contains an explanation of some of the common terms used in this prospectus. For additional information about the Funds, please see the SAI.

Acquired Fund Fees and Expenses — fees and expenses charged by other investment companies in which a Fund invests a portion of its assets.

Annual Fund Operating Expenses — expenses that cover the costs of operating a Fund.

Distribution Fees — fees used to support a Fund’s marketing and distribution efforts, such as compensating Financial Intermediaries, advertising and promotion.

Management Fee — a fee paid to BlackRock for managing a Fund.

Other Expenses — include accounting, administration, transfer agency, custody, professional and registration fees.

Russell Midcap ^® Growth Index — an unmanaged index that consists of the bottom 800 securities of the Russell 1000 ^® Index with greater-than-average growth orientation as ranked by total market capitalization. Securities in this index generally have higher price-to-book and price-to-earnings ratios, lower dividend yields and higher forecasted growth values.

Russell 2000 ^® Growth Index — an unmanaged index that measures performance of the small-cap growth segment of the U.S. equity universe. It includes those Russell 2000 ^® Index companies with higher price-to-value ratios and higher forecasted growth values.

Service Fees — fees used to compensate Financial Intermediaries for certain shareholder servicing activities.

Shareholder Fees — these fees include sales charges that you may pay when you buy or sell shares of a Fund.

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For More Information

Funds and Service Providers

FUNDS

BlackRock Funds ^SM
BlackRock Mid-Cap Growth Equity Portfolio
BlackRock Advantage Small Cap Growth Fund
100 Bellevue Parkway
Wilmington, Delaware 19809

Written Correspondence:
P.O. Box 9819
Providence, Rhode Island 02940-8019

Overnight Mail:
4400 Computer Drive
Westborough, Massachusetts 01588

(800) 441-7762

MANAGER AND ADMINISTRATOR

BlackRock Advisors, LLC
100 Bellevue Parkway
Wilmington, Delaware 19809

TRANSFER AGENT

BNY Mellon Investment Servicing (US) Inc.
301 Bellevue Parkway
Wilmington, Delaware 19809

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Deloitte & Touche LLP
1700 Market Street
Philadelphia, Pennsylvania 19103

ACCOUNTING SERVICES PROVIDER

BNY Mellon Investment Servicing (US) Inc.
301 Bellevue Parkway
Wilmington, Delaware 19809

DISTRIBUTOR

BlackRock Investments, LLC
40 East 52nd Street
New York, New York 10022

CUSTODIAN

The Bank of New York Mellon
One Wall Street
New York, New York 10286

COUNSEL

Sidley Austin LLP
787 Seventh Avenue
New York, New York 10019-6018

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Additional Information

For more information:
This prospectus contains important information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference. More information about the Funds is available at no charge upon request. This information includes:

Annual/Semi-Annual Reports
These reports contain additional information about each of the Fund’s investments. The annual report describes each Fund’s performance, lists portfolio holdings, and discusses recent market conditions, economic trends and Fund investment strategies that significantly affected a Fund’s performance for the last fiscal year.

Statement of Additional Information
A Statement of Additional Information (“SAI”), dated January 27, 2017, has been filed with the Securities and Exchange Commission (“SEC”). The SAI, which includes additional information about each Fund, may be obtained free of charge, along with each Fund’s annual and semi-annual reports, by calling (800) 441-7762. The SAI, as supplemented from time to time, is incorporated by reference into this prospectus.

BlackRock Investor Services
Representatives are available to discuss account balance information, mutual fund prospectuses, literature, programs and services available. Hours: 8:00 a.m. to 6:00 p.m. (Eastern time), on any business day. Call: (800) 441-7762.

Purchases and Redemptions
Call your Financial Intermediary or BlackRock Investor Services at (800) 441-7762.

World Wide Web
General Fund information and specific Fund performance, including the SAI and annual/semi-annual reports, can be accessed free of charge at www.blackrock.com/prospectus. Mutual fund prospectuses and literature can also be requested via this website.

Written Correspondence
BlackRock Funds ^SM
P.O. Box 9819
Providence, Rhode Island 02940

Overnight Mail
BlackRock Funds ^SM
4400 Computer Drive
Westborough, Massachusetts 01588

Internal Wholesalers/Broker Dealer Support
Available on any business day to support investment professionals. Call: (800) 882-0052.

Portfolio Characteristics and Holdings
A description of each Fund’s policies and procedures related to disclosure of portfolio characteristics and holdings is available in the SAI.

For information about portfolio holdings and characteristics, BlackRock fund shareholders and prospective investors may call (800) 882-0052.

Securities and Exchange Commission
You may also view and copy public information about each Fund, including the SAI, by visiting the EDGAR database on the SEC’s website (http://www.sec.gov) or the SEC’s Public Reference Room in Washington, D.C. Copies of this information can be obtained, for a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov, or by writing to the Public Reference Room of the SEC, Washington, D.C. 20549. Information about obtaining documents on the SEC’s website without charge may be obtained by calling (800) SEC-0330.

You should rely only on the information contained in this prospectus. No one is authorized to provide you with information that is different from information contained in this prospectus.

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

BLACKROCK FUNDS ^SM
INVESTMENT COMPANY ACT FILE # 811-05742

PRO-MCSC-0117

JANUARY 27, 2017

Prospectus

BlackRock Funds ^SM | Service Shares

►	BlackRock Mid-Cap Growth Equity Portfolio
	Service: CMGSX

►	BlackRock Advantage Small Cap Growth Fund

Service: PCGEX

This Prospectus contains information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference.

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.

Not FDIC Insured • May Lose Value • No Bank Guarantee

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Fund Overview	Key facts and details about the Funds listed in this prospectus, including investment objectives, principal investment strategies, principal risk factors, fee and expense information and historical performance information
	Key Facts About BlackRock Mid-Cap Growth Equity Portfolio	3
	Key Facts About BlackRock Advantage Small Cap Growth Fund	8

Details About the Funds	Information about how the Funds invest, including investment objectives, investment processes, principal strategies and risk factors
	How Each Fund Invests	13
	Investment Risks	15

Account Information	Information about account services, sales charges and waivers, shareholder transactions, and distribution and other payments
	How to Choose the Share Class that Best Suits Your Needs	22
	Distribution and Shareholder Servicing Payments	22
	How to Buy, Sell, Exchange and Transfer Shares	23
	Funds’ Rights	27
	Short-Term Trading Policy	28

Management of the Funds	Information about BlackRock and the Portfolio Managers
	BlackRock	29
	Portfolio Manager Information	31
	Conflicts of Interest	32
	Valuation of Fund Investments	33
	Dividends, Distributions and Taxes	34

Financial Highlights	Financial Performance of the Funds	36

General Information	Shareholder Documents	38
	Certain Fund Policies	38
	Statement of Additional Information	39

Glossary	Glossary of Investment Terms	40

For More Information	Funds and Service Providers	Inside Back Cover
	Additional Information	Back Cover

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Fund Overview

Key Facts About BlackRock Mid-Cap Growth Equity Portfolio

Investment Objective

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold Service Shares of Mid-Cap Growth Equity.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)	Service Shares
Management Fee ¹	0.80%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses	0.21%
Total Annual Fund Operating Expenses	1.26%
Fee Waivers and/or Expense Reimbursements ^1,2	—
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements ^1,2	1.26%

As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 29, BlackRock Advisors, LLC (“BlackRock”) has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 29, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) to 1.58% of average daily net assets through January 31, 2018. The Fund may have to repay some of these waivers and/or reimbursements to BlackRock in the following two years. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

Example:

	1 Year	3 Years	5 Years	10 Years
Service Shares	$128	$400	$692	$1,523

Portfolio Turnover:

Principal Investment Strategies of the Fund

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or other instruments whose price is linked to the value of common stock. Although a universal definition of mid-capitalization companies does not exist, the Fund generally defines these companies, at the time of the Fund’s investment, as those with market capitalizations comparable in size to the companies in the Russell Midcap ^® Growth Index (between approximately $1.978 billion and $26.284 billion as of May 27, 2016). In the future, the Fund may define mid-capitalization companies using a different index or classification system. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

Principal Risks of Investing in the Fund

■

■	Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
	Volatility Risk — Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
	Counterparty Risk — Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.
	Market and Liquidity Risk — The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately.
	Valuation Risk — Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them.

Leverage Risk — Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund.

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the Fund. In December 2015, the Securities and Exchange Commission proposed a new rule to regulate the use of derivatives by registered investment companies, such as the Fund. If the rule goes into effect, it could limit the ability of the Fund to invest or remain invested in derivatives.

■	Equity Securities Risk — Stock markets are volatile. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions.
■	Investment Style Risk — Under certain market conditions, growth investments have performed better during the later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles.
■	Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
■	Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
■	Mid Cap Securities Risk — The securities of mid cap companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies.
■	“New Issues” Risk — “New issues” are IPOs of equity securities. Securities issued in IPOs have no trading history, and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may be highly volatile or may decline shortly after the IPO.

■

Performance Information

The information shows you how Mid-Cap Growth Equity’s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to that of the Russell Midcap ^® Growth Index. To the extent that dividends and distributions have been paid by the Fund, the performance information of the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. Updated information on the Fund’s performance, including its current net asset value, can be obtained by visiting http://www.blackrock.com/funds or can be obtained by phone at (800) 882-0052.

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Service Shares

ANNUAL TOTAL RETURNS ¹

BlackRock Mid-Cap Growth Equity Portfolio
As of 12/31

During the ten-year period shown in the bar chart, the highest return for a quarter was 20.88% (quarter ended June 30, 2009) and the lowest return for a quarter was -28.88% (quarter ended December 31, 2008).

As of 12/31/16 Average Annual Total Returns	1 Year	5 Years	10 Years ¹
BlackRock Mid-Cap Growth Equity Portfolio — Service Shares
Return Before Taxes	2.86%	13.39%	7.17%
Return After Taxes on Distributions	2.86%	11.39%	6.22%
Return After Taxes on Distributions and Sale of Fund Shares	1.62%	10.17%	5.54%
Russell Midcap ^® Growth Index (Reflects no deduction for fees, expenses or taxes)	7.33%	13.51%	7.83%

¹	A portion of the Fund’s total return was attributable to proceeds received in the fiscal years ended September 30, 2009, 2010 and 2011 in settlement of litigation.

Investment Manager

Mid-Cap Growth Equity’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).

Portfolio Managers

Name	Portfolio Manager of the Fund Since	Title
Lawrence Kemp	2013	Managing Director of BlackRock, Inc.
Kathryn Mongelli	2013	Director of BlackRock, Inc.
Phil Ruvinsky	2013	Director of BlackRock, Inc.

Purchase and Sale of Fund Shares

You may purchase or redeem shares of the Fund each day the New York Stock Exchange is open. To purchase or sell shares you should contact your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock, The PNC Financial Services Group, Inc. and their respective affiliates) (each a “Financial Intermediary”), or, if you hold your shares through the Fund, you should contact the Fund by phone at (800) 537-4942, by mail (c/o BlackRock Funds, P.O. Box 9819, Providence, Rhode Island 02940-8019), or by the Internet at www.blackrock.com/funds. The Fund’s initial and subsequent investment

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minimums for Service Shares generally are as follows, although the Fund may reduce or waive the minimums in some cases:

	Service Shares
Minimum Initial Investment	$5,000
Minimum Additional Investment	No subsequent minimum.

Tax Information

Payments to Broker/Dealers and Other Financial Intermediaries

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Fund Overview

Key Facts About BlackRock Advantage Small Cap Growth Fund

Investment Objective

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold Service Shares of Advantage Small Cap Growth.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)	Service Shares
Management Fee ^1,2,3	0.45%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses	0.33%
Total Annual Fund Operating Expenses ²	1.03%
Fee Waivers and/or Expense Reimbursements ^3,4	(0.28)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements ^3,4	0.75%

¹	Management Fee has been restated to reflect current fees.
²	The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets given in the Fund’s most recent annual report, which does not include the restatement of the Management Fee to reflect current fees.
³	As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 29, BlackRock Advisors, LLC (“BlackRock”) has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
⁴	As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 29, BlackRock Advisors, LLC (“BlackRock”) has contractually agreed to waive and/or reimburse fees and/or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) to 0.75% of average daily net assets through January 31, 2018. The Fund may have to repay some of these waivers and/or reimbursements to BlackRock in the following two years. This contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Fund or by a vote of a majority of the outstanding voting securities of the Fund.

Example:

	1 Year	3 Years	5 Years	10 Years
Service Shares	$77	$300	$541	$1,234

Portfolio Turnover:

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Principal Investment Strategies of the Fund

From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

Principal Risks of Investing in the Fund

■	Convertible Securities Risk — The market value of a convertible security performs like that of a regular debt security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible securities are subject to the risk that the issuer will not be able to pay interest or dividends when due, and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Since it derives a portion of its value from the common stock into which it may be converted, a convertible security is also subject to the same types of market and issuer risks as apply to the underlying common stock.
■	Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
	Volatility Risk — Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
	Counterparty Risk — Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.
	Market and Liquidity Risk — The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately.
	Valuation Risk — Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them.

Leverage Risk — Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund.

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■	Equity Securities Risk — Stock markets are volatile. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions.

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■	Investment Style Risk — Under certain market conditions, growth investments have performed better during the later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles.
■	Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
■	Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
■	“New Issues” Risk — “New issues” are IPOs of equity securities. Securities issued in IPOs have no trading history, and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may be highly volatile or may decline shortly after the IPO.

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Small Cap and Emerging Growth Securities Risk — Small cap or emerging growth companies may have limited product lines or markets. They may be less financially secure than larger, more established companies. They may depend on a more limited management group than larger capitalized companies.

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Performance Information

The information shows you how Advantage Small Cap Growth’s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to that of the Russell 2000 ^® Growth Index. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results.The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. Updated information on the Fund’s performance, including its current net asset value, can be obtained by visiting http://www.blackrock.com/funds or can be obtained by phone at (800) 882-0052.

Service Shares

ANNUAL TOTAL RETURNS ¹

BlackRock Advantage Small Cap Growth Fund
As of 12/31

During the ten-year period shown in the bar chart, the highest return for a quarter was 26.06% (quarter ended June 30, 2009) and the lowest return for a quarter was -28.81% (quarter ended December 31, 2008).

As of 12/31/16 Average Annual Total Returns	1 Year	5 Years	10 Years ¹
BlackRock Advantage Small Cap Growth Fund — Service Shares
Return Before Taxes	13.11%	12.17%	7.29%
Return After Taxes on Distributions	13.11%	7.20%	4.84%
Return After Taxes on Distributions and Sale of Fund Shares	7.42%	8.30%	5.22%
Russell 2000 ^® Growth Index (Reflects no deduction for fees, expenses or taxes)	11.32%	13.74%	7.76%

¹	A portion of the Fund’s total return was attributable to proceeds received in the fiscal year ended September 30, 2009 in settlement of litigation.

Investment Manager

Advantage Small Cap Growth’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).

Portfolio Manager

Name	Portfolio Manager of the Fund Since	Title
Travis Cooke, CFA	2013	Managing Director of BlackRock, Inc.

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Purchase and Sale of Fund Shares

	Service Shares
Minimum Initial Investment	$5,000
Minimum Additional Investment	No subsequent minimum.

Tax Information

Payments to Broker/Dealers and Other Financial Intermediaries

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Details About the Funds

How Each Fund Invests

Mid-Cap Growth Equity

Investment Objective

The investment objective of Mid-Cap Growth Equity is long-term capital appreciation.

Investment Process

Principal Investment Strategies

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ABOUT THE PORTFOLIO MANAGEMENT TEAM OF MID-CAP GROWTH EQUITY

Advantage Small Cap Growth

Investment Objective

The investment objective of Advantage Small Cap Growth is to seek long-term capital growth.

Investment Process

Principal Investment Strategies

Under normal circumstances, the Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of small cap companies and at least 80% of its net assets (plus any borrowings for investment purposes) in securities or instruments of issuers located in the United States. Equity securities consist primarily of common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock, such as derivatives. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. The Fund management team focuses on small capitalization companies that Fund management believes have above average prospects for earnings growth. Although a universal definition of small-capitalization companies does not exist, the Fund generally defines these companies as those with market capitalizations, at the time of the Fund’s investment, comparable in size to the companies in the Russell 2000 ^® Index (between approximately $133 million and $3.86 billion as of May 27, 2016). The market capitalizations of companies in each index change with market conditions and the composition of the index. The Fund will not sell a company’s securities solely because that company’s market capitalization rises above the Fund’s definition of small cap company. A company’s market capitalization may go up or down due to market fluctuations. In the future, the Fund may define small-capitalization companies using a different index or classification system.

From time to time the Fund may invest in shares of companies through “new issues” or initial public offerings (“IPOs”).

ABOUT THE PORTFOLIO MANAGER OF ADVANTAGE SMALL CAP GROWTH

Other Strategies Applicable to the Funds

In addition to the principal strategies discussed above, each Fund (except as noted below) may also invest or engage in the following investments/strategies:

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■	Debt Securities (Advantage Small Cap Growth) — The Fund may invest in debt securities, including debt securities that are issued together with a particular equity security.

■	Foreign Securities — Each Fund may invest in equity securities of companies located outside the United States. Mid-Cap Growth Equity may invest up to 10% of its assets in foreign securities.

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■	Investment Companies — Each Fund has the ability to invest in other investment companies, such as exchange-traded funds (“ETFs”), unit investment trusts, and open-end and closed-end funds. Each Fund may invest in affiliated investment companies, including affiliated money market funds and affiliated ETFs.
■	Money Market Securities — Each Fund may invest in high quality money market securities pending investments or when it expects to need cash to pay redeeming shareholders. Each Fund will not be deemed to deviate from its normal strategies if it holds these securities pending investments.

■	Real Estate Investment Trusts (Advantage Small Cap Growth) — The Fund may invest in real estate investment trusts (“REITs”). REITs are companies that own interests in real estate or in real estate related loans or other interests, and have revenue primarily consisting of rent derived from owned, income producing real estate properties and capital gains from the sale of such properties. REITs can generally be classified as equity REITs, mortgage REITs and hybrid REITs. Equity REITs invest the majority of their assets directly in real property and derive their income primarily from rents. Equity REITs can also realize capital gains by selling properties that have appreciated in value. Mortgage REITs invest the majority of their assets in real estate mortgages and derive their income primarily from interest payments. Hybrid REITs combine the characteristics of both equity REITs and mortgage REITs. REITs are not taxed on income distributed to shareholders provided they comply with the requirements of the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”).
■	Repurchase Agreements and Purchase and Sale Contracts (Advantage Small Cap Growth) — The Fund may enter into certain types of repurchase agreements or purchase and sale contracts. Under a repurchase agreement, the seller agrees to repurchase a security at a mutually agreed-upon time and price. A purchase and sale contract is similar to a repurchase agreement, but purchase and sale contracts also provide that the purchaser receives any interest on the security paid during the period.
■	Securities Lending (Advantage Small Cap Growth) — The Fund may lend securities with a value up to 33 ¹ ⁄ 3 % of its total assets to financial institutions that provide cash or securities issued or guaranteed by the U.S. Government as collateral.

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Investment Risks

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Principal Risks of Investing in the Funds

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■	Derivatives Risk — The Fund’s use of derivatives may increase its costs, reduce the Fund’s returns and/or increase volatility. Derivatives involve significant risks, including:
	Volatility Risk – The Fund’s use of derivatives may reduce the Fund’s returns and/or increase volatility. Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate with the overall securities markets.
	Counterparty Risk – Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation.
	Market and Liquidity Risk – Some derivatives are more sensitive to interest rate changes and market price fluctuations than other securities. The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately. The Fund could also suffer losses related to its derivatives positions as a result of unanticipated market movements, which losses are potentially unlimited. Finally, BlackRock Advisors, LLC (“BlackRock”) may not be able to predict correctly the direction of securities prices, interest rates and other economic factors, which could cause the Fund’s derivatives positions to lose value.
	Valuation Risk – Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. Derivatives may also expose the Fund to greater risk and increase its costs. Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund.
	Hedging Risk – When a derivative is used as a hedge against a position that the Fund holds, any loss generated by the derivative generally should be substantially offset by gains on the hedged investment, and vice versa. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains. Hedges are sometimes subject to imperfect matching between the derivative and the underlying security, and there can be no assurance that the Fund’s hedging transactions will be effective. The use of hedging may result in certain adverse tax consequences noted below.

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	regulation that may be implemented on the ability of the Fund to use swaps or any other financial derivative product, and there can be no assurance that any new governmental regulation will not adversely affect the Fund’s ability to achieve its investment objective.
	Risks Specific to Certain Derivatives Used by the Fund

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as compared to a fund with less active trading policies. These effects of higher than normal portfolio turnover may adversely affect Fund performance.

■	Investment Style Risk — Under certain market conditions, growth investments have performed better during the later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use different investment styles.
■	Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. As an open-end investment company registered with the SEC, the Fund is subject to the federal securities laws, including the Investment Company Act of 1940, as amended (the “Investment Company Act”), the rules thereunder, and various SEC and SEC staff interpretive positions. In accordance with these laws, rules and positions, the Fund must “set aside” liquid assets (often referred to as “asset segregation”), or engage in other SEC- or staff-approved measures, to “cover” open positions with respect to certain kinds of instruments. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
■	Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
■	Mid Cap Securities Risk (Mid-Cap Growth Equity) — The securities of mid cap companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies.

■	“New Issues” Risk — “New issues” are IPOs of equity securities. Investments in companies that have recently gone public have the potential to produce substantial gains for the Fund. However, there is no assurance that the Fund will have access to profitable IPOs and therefore investors should not rely on these past gains as an indication of future performance. The investment performance of the Fund during periods when it is unable to invest significantly or at all in IPOs may be lower than during periods when the Fund is able to do so. In addition, as the Fund increases in size, the impact of IPOs on the Fund’s performance will generally decrease. Securities issued in IPOs are subject to many of the same risks as investing in companies with smaller market capitalizations. Securities issued in IPOs have no trading history, and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may be highly volatile or may decline shortly after the IPO. When an IPO is brought to the market, availability may be limited and the Fund may not be able to buy any shares at the offering price, or, if it is able to buy shares, it may not be able to buy as many shares at the offering price as it would like.
■	Preferred Securities Risk — Preferred securities may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company’s preferred securities generally pay dividends only after the company makes required payments to holders of its bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred stock of larger companies.
■	Small Cap and Emerging Growth Securities Risk (Advantage Small Cap Growth) — Small cap or emerging growth companies may have limited product lines or markets. They may be less financially secure than larger, more established companies. They may depend on a small number of key personnel. If a product fails or there are other adverse developments, or if management changes, the Fund’s investment in a small cap or emerging growth company may lose substantial value. In addition, it is more difficult to get information on smaller companies, which tend to be less well known, have shorter operating histories, do not have significant ownership by large investors and are followed by relatively few securities analysts.

■	Warrants Risk (Advantage Small Cap Growth) — If the price of the underlying stock does not rise above the exercise price before the warrant expires, the warrant generally expires without any value and the Fund will lose any

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Other Risks of Investing in the Funds

Each Fund (except as noted below) may also be subject to certain other risks associated with its investments and investment strategies, including:

■

	Many emerging markets have histories of political instability and abrupt changes in policies. As a result, their governments are more likely to take actions that are hostile or detrimental to private enterprise or foreign investment than those of more developed countries. Some countries have pervasive corruption and crime that may hinder investments. Certain emerging markets may also face other significant internal or external risks, including the risk of war, and ethnic, religious and racial conflicts. In addition, governments in many emerging market countries participate to a significant degree in their economies and securities markets, which may impair investment and economic growth.
■	Expense Risk — Fund expenses are subject to a variety of factors, including fluctuations in the Fund’s net assets. Accordingly, actual expenses may be greater or less than those indicated. For example, to the extent that the Fund’s net assets decrease due to market declines or redemptions, the Fund’s expenses will increase as a percentage of Fund net assets. During periods of high market volatility, these increases in the Fund’s expense ratio could be significant.
■	Foreign Securities Risk — Because the Fund may invest in companies located in countries other than the United States, the Fund may be exposed to risks associated with foreign investments.

■	The value of holdings traded outside the United States (and any hedging transactions in foreign currencies) will be affected by changes in currency exchange rates.
■	The costs of non-U.S. securities transactions tend to be higher than those of U.S. transactions.
■	Foreign holdings may be adversely affected by foreign government action.
■	International trade barriers or economic sanctions against certain non-U.S. countries may adversely affect these holdings.
■	The economies of certain countries may compare unfavorably with the U.S. economy.
■	Foreign securities markets may be smaller than the U.S. markets, which may make trading more difficult.

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■	Real Estate Related Securities Risk (Advantage Small Cap Growth) — The main risk of real estate related securities is that the value of the underlying real estate may go down. Many factors may affect real estate values. These factors include both the general and local economies, the amount of new construction in a particular area, the laws and regulations (including zoning and tax laws) affecting real estate and the costs of owning, maintaining and improving real estate. The availability of mortgages and changes in interest rates may also affect real estate values. If the Fund’s real estate related investments are concentrated in one geographic area or in one property type, the Fund will be particularly subject to the risks associated with that area or property type.
■	REIT Investment Risk (Advantage Small Cap Growth) — In addition to the risks facing real estate related securities, such as a decline in property values due to increasing vacancies, a decline in rents resulting from unanticipated economic, legal or technological developments or a decline in the price of securities of real estate companies due to a failure of borrowers to pay their loans or poor management, investments in REITs involve unique risks. REITs may have limited financial resources, may trade less frequently and in limited volume and may be more volatile than other securities.
■	Repurchase Agreements and Purchase and Sale Contracts Risk (Advantage Small Cap Growth) — If the other party to a repurchase agreement or purchase and sale contract defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security in either situation and the market value of the security declines, the Fund may lose money.
■	Securities Lending Risk (Advantage Small Cap Growth) — Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, the Fund may lose money and there may be a delay in recovering the loaned securities. The Fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. These events could trigger adverse tax consequences for the Fund.

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not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.

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Account Information

How to Choose the Share Class that Best Suits Your Needs

Each Fund currently offers multiple share classes (Service Shares in this prospectus), each with its own sales charge and expense structure, allowing you to invest in the way that best suits your needs. Each share class represents an ownership interest in the same investment portfolio of the particular Fund. When you choose your class of shares, you should consider the size of your investment and how long you plan to hold your shares. Either your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock, The PNC Financial Services Group, Inc. (“PNC”) and their respective affiliates) (each a “Financial Intermediary”) can help you determine which share class is best suited to your personal financial goals.

Each Fund’s shares are distributed by BlackRock Investments, LLC (the “Distributor”), an affiliate of BlackRock.

The table below summarizes key features of the Service Share class of each Fund.

Service Shares at a Glance


Availability	Limited to certain investors, including: Financial Intermediaries (such as banks and brokerage firms) acting on behalf of their customers, certain persons who were shareholders of the Compass Capital Group of Funds at the time of its combination with The PNC ^® Fund in 1996 and investors that participate in the Capital Directions ^SM asset allocation program. Service Shares will normally be held by Financial Intermediaries or in the name of nominees of Financial Intermediaries on behalf of their customers. Service Shares are normally purchased through a customer’s account at a Financial Intermediary through procedures established by such Financial Intermediary. In these cases, confirmation of share purchases and redemptions will be sent to the Financial Intermediaries. A customer’s ownership of shares will be recorded by the Financial Intermediary and reflected in the account statements provided by such Financial Intermediaries to their customers. Investors wishing to purchase Service Shares should contact their Financial Intermediaries.
Minimum Investment	$5,000. However, institutions may set a higher minimum for their customers.
Initial Sales Charge?	No. Entire purchase price is invested in shares of the Fund.
Deferred Sales Charge?	No.
Distribution and Service (12b-1) Fees?	No Distribution Fee. 0.25% Annual Service Fee.
Redemption Fees?	No.
Advantage	No up-front sales charge so you start off owning more shares.
Disadvantage	Limited availability.

Distribution and Shareholder Servicing Payments

Plan Payments

The Trust, on behalf of the the Funds, has adopted a plan (the “Plan”) pursuant to Rule 12b-1 under the Investment Company Act that allows a Fund to pay distribution fees for the sale of its shares and/or shareholder servicing fees for certain services provided to its shareholders.

Under the Plan, the Funds pay shareholder servicing fees (also referred to as general shareholder liaison services fees) to Financial Intermediaries for providing support services to their customers who own Service Shares of the Fund. The shareholder servicing fee payment is calculated as a percentage of the average daily net asset value of Service Shares of the Fund. All Service Shares pay this shareholder servicing fee.

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In return for the shareholder servicing fee, Financial Intermediaries (including BlackRock) may provide one or more of the following services to their customers who own Service Shares:

■	Answering customer inquiries regarding account status and history, the manner in which purchases, exchanges and redemptions or repurchases of shares may be effected and certain other matters pertaining to the customers’ investments;
■	Assisting customers in designating and changing dividend options, account designations and addresses; and

■	Providing other similar shareholder liaison services.

Other Payments by the Funds

Other Payments by BlackRock

Please contact your Financial Intermediary for details about payments it may receive from a Fund or from BlackRock, the Distributor or their affiliates. For more information, see the SAI.

How to Buy, Sell, Exchange and Transfer Shares

The chart on the following pages summarizes how to buy, sell, exchange and transfer shares through your Financial Intermediary. You may also buy, sell, exchange and transfer shares through BlackRock if your account is held directly with BlackRock. To learn more about buying, selling, exchanging or transferring shares through BlackRock, call (800) 537-4942. Because the selection of a mutual fund involves many considerations, your Financial Intermediary may help you with this decision.

With certain limited exceptions, the Funds are generally available only to investors residing in the United States and may not be distributed by a foreign Financial Intermediary. Under this policy, in order to accept new accounts or additional investments (including by way of exchange from another mutual fund sponsored and advised by BlackRock or its affiliates (a “BlackRock Fund”)) into existing accounts, each Fund generally requires that (i) a shareholder that is a natural person be a U.S. citizen or resident alien, in each case residing within the United States or a U.S. territory (including APO/FPO/DPO addresses), and have a valid U.S. taxpayer identification number, and (ii) a Financial Intermediary or a shareholder that is an entity be domiciled in the United States and have a valid U.S. taxpayer identification number or be domiciled in a U.S. territory and have a valid U.S. taxpayer identification number or IRS Form W-8. Any existing account that is updated to reflect a non-U.S. address will also be restricted from making additional investments.

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Under certain circumstances, if no activity occurs in an account within a time period specified by state law, a shareholder’s shares in a Fund may be transferred to that state.

Persons who were shareholders of an investment portfolio of the Compass Capital Group of Funds in 1996 at the time the portfolio combined with The PNC ^® Fund may purchase and redeem Service Shares of the same fund and for the same account in which they held shares on that date through the procedures described in this section.

How to Buy Shares

	Your Choices	Important Information for You to Know
Initial Purchase	Determine the amount of your investment	Refer to the minimum initial investment in the “Service Shares at a Glance” table in this prospectus (be sure to read this prospectus carefully).
	Have your Financial Intermediary submit your purchase order	The price of your shares is based on the next calculation of the Fund’s net asset value after your order is placed. Any purchase orders placed prior to the close of business on the New York Stock Exchange (the “NYSE”) (generally 4:00 p.m. Eastern time) will be priced at the net asset value determined that day. Certain Financial Intermediaries, however, may require submission of orders prior to that time. Purchase orders placed after that time will be priced at the net asset value determined on the next business day. A broker-dealer or financial institution maintaining the account in which you hold shares may charge a separate account, service or transaction fee on the purchase or sale of Fund shares that would be in addition to the fees and expenses shown in the Fund’s “Fees and Expenses” table. The Fund may reject any order to buy shares and may suspend the sale of shares at any time. Certain Financial Intermediaries may charge a processing fee to confirm a purchase.
Add to Your Investment	Purchase additional shares	There is no minimum amount for additional investments.
	Have your Financial Intermediary submit your purchase order for additional shares	To purchase additional shares you may contact your Financial Intermediary.
	Or contact BlackRock (for accounts held directly with BlackRock)	Purchase by Telephone: Call (800) 537-4942 and speak with one of our representatives. The Fund has the right to reject any telephone request for any reason. Purchase by Internet: You may purchase your shares, and view activity in your account, by logging onto the BlackRock website at www.blackrock.com. Purchases made on the Internet using the Automated Clearing House (“ACH”) will have a trade date that is the day after the purchase is made. Certain institutional clients’ purchase orders placed by wire prior to the close of business on the NYSE will be priced at the net asset value determined that day. Contact your Financial Intermediary or BlackRock for further information. Limits on amounts that may be purchased via Internet may vary. For additional information call BlackRock at (800) 537-4942. Please read the On-Line Services Disclosure Statement and User Agreement, the Terms and Conditions page and the Consent to Electronic Delivery Agreement (if you consent to electronic delivery), before attempting to transact online. The Fund employs reasonable procedures to confirm that transactions entered over the Internet are genuine. By entering into the User Agreement with the Fund in order to open an account through the website, the shareholder waives any right to reclaim any losses from the Fund or any of its affiliates, incurred through fraudulent activity.

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	Your Choices	Important Information for You to Know
Add to Your Investment (continued)	Acquire additional shares by reinvesting dividends and capital gains	All dividends and capital gains distributions are automatically reinvested without a sales charge. To make any changes to your dividend and/or capital gains distributions options, please call (800) 537-4942 or contact your Financial Intermediary (if your account is not held directly with BlackRock).
How to Pay for Shares	Making payment for purchases	Payment for Service Shares must normally be made in Federal funds or other immediately available funds by the time specified by your Financial Intermediary but in no event later than 4:00 p.m. (Eastern time) on the first business day following BlackRock’s receipt of the order. Payment may also, at the discretion of the Fund, be made in the form of securities that are permissible investments for the Fund. If payment is not received by this time, the order will be canceled and you and your Financial Intermediary will be responsible for any loss to the Fund.

How to Sell Shares

	Your Choices	Important Information for You to Know
Full or Partial Redemption of Shares	Have your Financial Intermediary submit your sales order	You can make redemption requests through your Financial Intermediary in accordance with the procedures applicable to your accounts. These procedures may vary according to the type of account and the Financial Intermediary involved and customers should consult their Financial Intermediary in this regard. Financial Intermediaries are responsible for transmitting redemption orders and crediting their customers’ accounts with redemption proceeds on a timely basis. Information relating to such redemption services and charges to process a redemption of shares, if any, should be obtained by customers from their Financial Intermediaries. Financial Intermediaries may place redemption orders by telephoning (800) 537-4942. The price of your shares is based on the next calculation of the Fund’s net asset value after your order is placed. For your redemption request to be priced at the net asset value on the day of your request, you must submit your request to your Financial Intermediary prior to that day’s close of business on the NYSE (generally 4:00 p.m. Eastern time). Certain Financial Intermediaries, however, may require submission of orders prior to that time. Any redemption request placed after that time will be priced at the net asset value at the close of business on the next business day. Shareholders who hold more than one class should indicate which class of shares they are redeeming. The Fund may reject an order to sell shares under certain circumstances.
	Selling shares held directly with BlackRock	Methods of Redeeming Redeem by Telephone: Institutions may place redemption orders by telephoning (800) 537-4942. The Fund, its administrators and the Distributor will employ reasonable procedures to confirm that instructions communicated by telephone are genuine. The Fund and its service providers will not be liable for any loss, liability, cost or expense for acting upon telephone instructions that are reasonably believed to be genuine in accordance with such procedures. The Fund may refuse a telephone redemption request if it believes it is advisable to do so. During periods of substantial economic or market change, telephone redemptions may be difficult to complete. Please find below alternative redemption methods. Redeem by Internet: You may redeem in your account, by logging onto the BlackRock website at www.blackrock.com/funds. Proceeds from Internet redemptions will be sent via wire to the bank account of record. Redeem in Writing: Redemption requests may be sent in proper form to BlackRock Funds, P.O. Box 9819, Providence, RI 02940-8019. Under certain circumstances, a medallion signature guarantee will be

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	Your Choices	Important Information for You to Know
Full or Partial Redemption of Shares (continued)	Selling shares held directly with BlackRock (continued)	required. Payment of Redemption Proceeds Redemption proceeds may be paid by check or, if the Fund has verified banking information on file, by wire transfer. Payment by Check: BlackRock will normally mail redemption proceeds within seven days following receipt of a properly completed request. Shares can be redeemed by telephone and the proceeds sent by check via overnight mail. You are responsible for any additional charges imposed by your bank for this service. The Fund reserves the right to reinvest any dividend or distribution amounts (e.g., income dividends or capital gains) which you have elected to receive by check should your check be returned as undeliverable or remain uncashed for more than 6 months. No interest will accrue on amounts represented by uncashed checks. Your check will be reinvested in your account at the net asset value next calculated, on the day of the investment. When reinvested, those amounts are subject to the risk of loss like any fund investment. If you elect to receive distributions in cash and a check remains undeliverable or uncashed for more than 6 months, your cash election may also be changed automatically to reinvest and your future dividend and capital gains distributions will be reinvested in the Fund at the net asset value as of the date of payment of the distribution. Payment by Wire Transfer: Payment for redeemed shares for which a redemption order is received before 4:00 p.m. (Eastern time) on a business day is normally made in Federal funds wired to the redeeming shareholder on the next business day, provided that the Fund’s custodian is also open for business. Payment for redemption orders received after 4:00 p.m. (Eastern time) or on a day when the Fund’s custodian is closed is normally wired in Federal funds on the next business day following redemption on which the Fund’s custodian is open for business. The Fund reserves the right to wire redemption proceeds within seven days after receiving a redemption order if, in the judgment of the Fund, an earlier payment could adversely affect the Fund. Shares can be redeemed by Federal wire transfer to a single previously designated bank account. No charge for wiring redemption payments with respect to Service Shares is imposed by the Fund, although Financial Intermediaries may charge their customers for redemption services. Information relating to such redemption services and charges, if any, should be obtained by customers from their Financial Intermediaries. You are responsible for any additional charges imposed by your bank for wire transfers. The Fund is not responsible for the efficiency of the Federal wire system or the shareholder’s firm or bank. To change the name of the single, designated bank account to receive wire redemption proceeds, it is necessary to send a written request to the Fund at the address on the back cover of this prospectus. *** If you make a redemption request before the Fund has collected payment for the purchase of shares, the Fund may delay mailing your proceeds. This delay will usually not exceed ten days.

How to Exchange Shares or Transfer your Account

	Your Choices	Important Information for You to Know
Exchange Privilege	Selling shares of one fund to purchase shares of another BlackRock Fund (“exchanging”)	Service Shares of the Fund are generally exchangeable for shares of the same class of another BlackRock Fund. You can exchange Service Shares from one fund into the same class of another fund which offers that class of shares. Refer to the minimum initial investment in the “Service Shares at a Glance” table in this prospectus.

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	Your Choices	Important Information for You to Know
Exchange Privilege (continued)	Selling shares of one fund to purchase shares of another BlackRock Fund (“exchanging”) (continued)	You may only exchange into a share class and fund that are open to new investors or in which you have a current account if the fund is closed to new investors To exercise the exchange privilege, you may contact your Financial Intermediary. Alternatively, if your account is held directly with BlackRock, you may: (i) call (800) 537-4942 and speak with one of our representatives, (ii) make the exchange via the Internet by accessing your account online at www.blackrock.com, or (iii) send a written request to the Fund at the address on the back cover of this prospectus. Please note, if you indicated on your New Account Application that you did not want the Telephone Exchange Privilege, you will not be able to place exchanges via the telephone until you update this option either in writing or by calling (800) 537-4942. The Fund has the right to reject any telephone request for any reason. Although there is currently no limit on the number of exchanges that you can make, the exchange privilege may be modified or terminated at any time in the future. The Fund may suspend or terminate your exchange privilege at any time for any reason, including if the Fund believes, in its sole discretion, that you are engaging in market timing activities. See “Short-Term Trading Policy” below. For Federal income tax purposes a share exchange is a taxable event and a capital gain or loss may be realized. Please consult your tax adviser or other Financial Intermediary before making an exchange request.
Transfer Shares to Another Financial Intermediary	Transfer to a participating Financial Intermediary	You may transfer your shares of the Fund only to another Financial Intermediary that has an agreement with the Distributor. Certain shareholder services may not be available for the transferred shares. All future trading of these assets must be coordinated by the receiving firm.
	Transfer to a non-participating Financial Intermediary	You must either: • Transfer your shares to an account with the Fund; or • Sell your shares.

Funds’ Rights

Each Fund may:

■	Suspend the right of redemption if trading is halted or restricted on the NYSE or under other emergency conditions described in the Investment Company Act;
■	Postpone the date of payment upon redemption if trading is halted or restricted on the NYSE or under other emergency conditions described in the Investment Company Act or if a redemption request is made before the Fund has collected payment for the purchase of shares;
■	Redeem shares for property other than cash as may be permitted under the Investment Company Act; and
■	Redeem shares involuntarily in certain cases, such as when the value of a shareholder account falls below a specified level.

Note on Low Balance Accounts. Because of the high cost of maintaining smaller shareholder accounts, BlackRock has set a minimum balance of $500 in each Fund position you hold within your account (the “Fund Minimum”), and may redeem the shares in your account if the net asset value of those shares in your account falls below $500 for any reason, including market fluctuation.

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Short-Term Trading Policy

There is no assurance that the methods described above will prevent market timing or other trading that may be deemed abusive.

The Funds may from time to time use other methods that they believe are appropriate to deter market timing or other trading activity that may be detrimental to a Fund or long-term shareholders.

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Management of the Funds

BlackRock

BlackRock has contractually agreed to cap net expenses for each Fund (excluding: (i) interest, taxes, dividends tied to short sales, brokerage commissions, and other expenditures which are capitalized in accordance with generally accepted accounting principles; (ii) expenses incurred directly or indirectly by the Fund as a result of investments in other investment companies and pooled investment vehicles; (iii) other expenses attributable to, and incurred as a result of, the Fund’s investments; and (iv) other extraordinary expenses (including litigation expenses) not incurred in the ordinary course of the Fund’s business, if any) of Service Shares of the Funds at the levels shown below and in the Fund’s fees and expenses table in the “Fund Overview” section of this prospectus. Items (i), (ii), (iii) and (iv) in the preceding sentence are referred to in this prospectus as “Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses.” To achieve these expense caps, BlackRock has agreed to waive and/or reimburse fees or expenses if the Fund’s operating expenses exceed a certain limit.

Mid-Cap Growth Equity Total Annual Management Fee

With respect to Mid-Cap Growth Equity, the maximum annual management fee that can be paid to BlackRock (as a percentage of average daily net assets) is calculated as follows:

Average Daily Net Assets	Rate of Management Fee
First $1 billion	0.800%
$1 billion – $2 billion	0.700%
$2 billion – $3 billion	0.650%
Greater than $3 billion	0.625%

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	Contractual Cap ¹ on Total Annual Fund Operating Expenses ² (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses)
Service	1.58%

¹	The contractual cap is in effect through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

²	As a percentage of average daily net assets.

Advantage Small Cap Growth Total Annual Management Fee

Average Daily Net Assets	Rate of Management Fee
First $1 billion	0.45%
$1 billion – $3 billion	0.42%
$3 billion – $5 billion	0.41%
$5 billion – $10 billion	0.39%
Greater than $10 billion	0.38%

Average Daily Net Assets	Rate of Management Fee
First $1 billion	0.550%
$1 billion – $2 billion	0.500%
$2 billion – $3 billion	0.475%
Greater than $3 billion	0.450%

	Contractual Cap ¹ on Total Annual Fund Operating Expenses ² (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses
Service Shares	0.75%

¹	The contractual cap is in effect through January 31, 2018. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested Trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
²	As a percentage of daily net assets.

With respect to the contractual agreement to cap net expenses, if during a Fund’s fiscal year the operating expenses of a share class, that at any time during the prior two fiscal years received a waiver and/or reimbursement from BlackRock, are less than the expense limit for that share class, the share class is required to repay BlackRock up to the lesser of (a) the amount of fees waived or expenses reimbursed during those prior two fiscal years under the agreement and (b) the amount by which the expense limit for that share class exceeds the operating expenses of the share class for the current fiscal year, provided that: (i) the Fund has more than $50 million in assets and (ii) BlackRock or an affiliate serves as the Fund’s manager or administrator. This repayment applies only to the contractual caps on net expenses and does not apply to the contractual management fee waiver described above or any voluntary waivers that may be in effect from time to time.

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For the fiscal year ended September 30, 2016, each Fund paid BlackRock management fees, net of any applicable waiver, as a percentage of the Fund’s average daily net assets as follows:

Mid-Cap Growth Equity	0.80%
Advantage Small Cap Growth	0.55%

Portfolio Manager Information

Mid-Cap Growth Equity

Portfolio Manager	Primary Role	Since	Title and Recent Biography
Lawrence Kemp	Jointly and primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Managing Director of BlackRock, Inc. since 2012; Prior to joining BlackRock, Inc., Mr. Kemp was a Managing Director at UBS Global Asset Management.
Kathryn Mongelli	Jointly and primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Director of BlackRock, Inc. since 2013; Vice President and Research Analyst at T. Rowe Price Associates from 2010 to 2013; Director of UBS Global Asset Management from 2005 to 2010.
Phil Ruvinsky	Jointly and primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Director of BlackRock, Inc. since 2013; Sector Head and Research Analyst at Surview Capital LLC from 2010 to 2013; Various positions, including Portfolio Manager and Investment Analyst, at UBS Global Asset Management from 2002 to 2010.

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Advantage Small Cap Growth

Portfolio Manager	Primary Role	Since	Title and Recent Biography
Travis Cooke, CFA	Primarily responsible for the day-to-day management of the Fund’s portfolio, including setting the Fund’s overall investment strategy and overseeing the management of the Fund.	2013	Managing Director of BlackRock, Inc. since 2012; Director of BlackRock, Inc. from 2009 to 2011; Principal of Barclays Global Investors from 2002 to 2009.

Conflicts of Interest

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collateral for the loaned securities. In addition, one or more Affiliates may be among the entities to which the Funds may lend their portfolio securities under the securities lending program.

Valuation of Fund Investments

When you buy shares, you pay the net asset value. This is the offering price. Shares are also redeemed at their net asset value. A Fund calculates the net asset value of each class of its shares each day the NYSE is open, generally as of the close of regular trading hours on the NYSE, based on prices at the time of closing. The NYSE generally closes at 4:00 p.m. (Eastern time). The net asset value used in determining your share price is the next one calculated after your purchase or redemption order is received.

When market quotations are not readily available or are not believed by BlackRock to be reliable, a Fund’s investments are valued at fair value. Fair value determinations are made by BlackRock in accordance with procedures approved by the Board. BlackRock may conclude that a market quotation is not readily available or is unreliable if a security or other asset or liability does not have a price source due to its lack of liquidity, if BlackRock believes a market quotation from a broker-dealer or other source is unreliable, where the security or other asset or liability is thinly traded (e.g., municipal securities, certain small cap and emerging growth companies, and certain non-U.S. securities) or where there is a significant event subsequent to the most recent market quotation. For this purpose, a “significant event” is deemed to occur if BlackRock determines, in its business judgment prior to or at the time of pricing a Fund’s assets or liabilities, that it is likely that the event will cause a material change to the last closing market price of one or more assets or liabilities held by the Fund. For instance, significant events may occur between the foreign market close and the close of business on the NYSE that may not be reflected in the computation of the Funds’ net assets. If such event occurs, those instruments may be fair valued. Similarly, foreign securities whose values are affected by volatility that occurs in U.S. markets on a trading day after the close of foreign securities markets may be fair valued.

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Dividends, Distributions and Taxes

BUYING A DIVIDEND

A 30% withholding tax is currently imposed on U.S.-source dividends, interest and other income items, and will be imposed on proceeds from the sale, redemption or other disposition of property producing U.S.-source dividends and interest paid after December 31, 2018, to (i) foreign financial institutions, including non-U.S. investment funds, unless they agree to collect and disclose to the IRS information regarding their direct and indirect U.S. account holders and (ii) certain other foreign entities unless they certify certain information regarding their direct and indirect U.S. owners. To avoid withholding, foreign financial institutions will need to (i) enter into agreements with the IRS that state that they will provide the IRS information, including the names, addresses and taxpayer identification numbers of direct and indirect U.S. account holders, comply with due diligence procedures with respect to the identification of U.S. accounts, report to the IRS certain information with respect to U.S. accounts, agree to withhold tax on certain payments made to non-compliant foreign financial institutions or to account holders that fail to provide the required information, and determine certain other information concerning their account holders, or (ii) in the event that an applicable intergovernmental agreement and implementing legislation are adopted, provide local revenue authorities with similar account holder information. Other foreign entities will need to either provide the name, address, and taxpayer identification number of each substantial U.S. owner or certifications of no substantial U.S. ownership unless certain exceptions apply.

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Financial Highlights

BlackRock Mid-Cap Growth Equity Portfolio

	Service
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$15.00	$16.34	$17.05	$12.77	$10.49
Net investment loss ¹	(0.13)	(0.16)	(0.19)	(0.02)	(0.01)
Net realized and unrealized gain	1.82	0.71	2.31	4.30	2.29
Net increase from investment operations	1.69	0.55	2.12	4.28	2.28
Distributions from net realized gain ²	(0.34)	(1.89)	(2.83)	—	—
Net asset value, end of year	$16.35	$15.00	$16.34	$17.05	$12.77
Total Return ³
Based on net asset value	11.39%	3.94%	14.11%	33.52%	21.74%
Ratios to Average Net Assets
Total expenses	1.26% ⁴	1.50% ⁴	1.58% ⁴	1.67% ⁴	2.29%
Total expenses after fees waived, reimbursed and paid indirectly	1.25%	1.48%	1.58%	1.58%	1.58%
Net investment loss	(0.88)%	(1.00)%	(1.17)%	(0.15)%	(0.06)%
Supplemental Data
Net assets, end of year (000)	$1,343	$1,384	$3,838	$2,065	$1,865
Portfolio turnover rate	81%	95%	123%	160%	88%

¹	Based on average shares outstanding.
²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, assumes the reinvestment of distributions.

⁴	Includes recoupment of past waived and/or reimbursed fees. Excluding the recoupment of past waived and/or reimbursed fees, the ratios were as follows:

	Year Ended September 30,
	2016	2015	2014	2013	2012
Expense ratios	1.24%	1.42%	1.33%	1.51%	—

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Financial Highlights (concluded)

BlackRock Advantage Small Cap Growth Fund

	Service
	Year Ended September 30,
	2016	2015	2014	2013	2012
Per Share Operating Performance
Net asset value, beginning of year	$ 15.55	$ 20.05	$ 27.81	$ 25.01	$ 18.93
Net investment loss ¹	(0.01)	(0.03)	(0.12)	(0.06)	(0.04)
Net realized and unrealized gain	0.97	0.43	2.40	5.49	6.72
Net increase from investment operations	0.96	0.40	2.28	5.43	6.68
Distributions from net realized gain ²	(0.98)	(4.90)	(10.04)	(2.63)	(0.60)
Net asset value, end of year	$ 15.53	$ 15.55	$ 20.05	$ 27.81	$ 25.01
Total Return ³
Based on net asset value	6.57%	2.00%	8.62%	24.96%	35.72%
Ratios to Average Net Assets
Total expenses	1.13% ⁴	1.12%	1.12%	1.12%	1.20%
Total expenses after fees waived, reimbursed and paid indirectly	1.13%	1.12%	1.12%	1.12%	1.17%
Net investment loss	(0.07)%	(0.17)%	(0.53)%	(0.25)%	(0.15)%
Supplemental Data
Net assets, end of year (000)	$12,054	$19,596	$23,621	$24,792	$29,281
Portfolio turnover rate	103%	137%	132%	175%	147%

¹	Based on average shares outstanding.

²	Distributions for annual periods determined in accordance with federal income tax regulations.
³	Where applicable, assumes the reinvestment of distributions.

⁴	Includes recoupment of past waived and/or reimbursed fees with no financial impact to the expense ratios.

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General Information

Shareholder Documents

Electronic Access to Annual Reports, Semi-Annual Reports and Prospectuses

Shareholders Who Hold Accounts Directly With BlackRock:

■	Access the BlackRock website at http://www.blackrock.com/edelivery; and
■	Log into your account