MAINSTAY FUNDS TRUST (Form: 485BPOS, Received: 02/29/2016 06:44:42)

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 26, 2016

FILE NO. 333-160918

FILE NO. 811-22321

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER


		*THE SECURITIES ACT OF 1933*		þ
		Post-Effective Amendment No. 89		þ

AND

REGISTRATION STATEMENT

UNDER


				*THE INVESTMENT COMPANY ACT OF 1940*		þ
				Amendment No. 91

MAINSTAY FUNDS TRUST

(exact name of registrant as specified in charter)

51 MADISON AVENUE,

NEW YORK, NEW YORK 10010

(address of principal executive office)

REGISTRANT’S TELEPHONE NUMBER: (212) 576-7000

Copy to:

J. Kevin Gao, Esq.

MainStay Funds Trust

169 Lackawanna Avenue

Parsippany, NJ 07054

Thomas C. Bogle, Esq.

Corey F. Rose, Esq.

Dechert LLP

1900 K Street, NW

Washington, DC 20006

(NAME AND ADDRESS OF AGENT FOR SERVICE)

It is proposed that this filing will become effective

Immediately upon filing pursuant to paragraph (b) of Rule 485

on February 29, 2016 pursuant to paragraph (b)(1) of Rule 485

60 days after filing pursuant to paragraph (a)(1) of Rule 485

on February 29, 2016, pursuant to paragraph (a)(1) of Rule 485

75 days after filing pursuant to paragraph (a)(2) of Rule 485

on 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


Prospectus for MainStay Asset Allocation Funds
MainStay Funds ^{^®}	February 29, 2016


	Class A	Investor Class	Class B	Class C	Class I	Class R3
Asset Allocation
MainStay Conservative Allocation Fund	MCKAX	MCKNX	MCKBX	MCKCX	MCKIX	MCKRX
MainStay Moderate Allocation Fund	MMRAX	MMRDX	MMRBX	MMRCX	MMRIX	MMRHX
MainStay Moderate Growth Allocation Fund	MGDAX	MGDNX	MGDBX	MGDCX	MGDIX	MGDRX
MainStay Growth Allocation Fund	MGXAX	MGXNX	MGXBX	MGXCX	MGXIX	MGXRX




















Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this Prospectus. Any representation to the contrary is a criminal offense.

Table of Contents

Asset Allocation Funds


MainStay Conservative Allocation Fund	4
MainStay Moderate Allocation Fund	11
MainStay Moderate Growth Allocation Fund	18
MainStay Growth Allocation Fund	25
Investment Risks	32
Shareholder Guide	44
Know With Whom You Are Investing	78
Financial Highlights	81

MainStay Conservative Allocation Fund

Investment Objective

The Fund seeks current income and, secondarily, long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 51 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	None		None		None		None		None		None
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		0.50	%
	Other Expenses	0.11	%	0.25	%	0.25	%	0.25	%	0.11	%	0.21	% ²
	Acquired (Underlying) Fund Fees and Expenses	0.86	%	0.86	%	0.86	%	0.86	%	0.86	%	0.86	%
	Total Annual Fund Operating Expenses	1.22	%	1.36	%	2.11	%	2.11	%	0.97	%	1.57	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. Based on estimated amounts for the current fiscal year.

Example

The 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 (except as indicated with respect to Class B and Class C shares). The Example reflects Class B shares converting into Investor Class shares in years 9-10; fees could be lower if you are eligible to convert to Class A shares instead. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 667	$ 681	$ 214	$ 714	$ 214	$ 314	$ 99	$ 160
3 Years	$ 916	$ 957	$ 661	$ 961	$ 661	$ 661	$ 309	$ 496
5 Years	$ 1,183	$ 1,254	$ 1,134	$ 1,334	$ 1,134	$ 1,134	$ 536	$ 855
10 Years	$ 1,946	$ 2,095	$ 2,250	$ 2,250	$ 2,441	$ 2,441	$ 1,190	$ 1,867

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 may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 40% of the average value of its portfolio.

Principal Investment Strategies

MainStay Conservative Allocation Fund

investors with a particular risk profile as represented by the asset class allocations described below, and invests in a distinct mix of Underlying Funds.

The Fund seeks to achieve its investment objective by normally investing approximately 60% (within a range of 50% to 70%) of its assets in Underlying Fixed-Income Funds and approximately 40% (within a range of 30% to 50%) of its assets in Underlying Equity Funds. The Underlying Equity Funds may consist of approximately 10% (within the range of 0% to 20%) of international equity funds. New York Life Investments may change the asset class allocations, the Underlying Funds in which the Fund invests, or the target weighting without prior approval from shareholders. With respect to investments in Underlying Equity Funds with a global mandate, New York Life Investments will allocate such investments equally between U.S. equity funds and international equity funds.

Certain Underlying Funds may be identified as spanning several asset classes for purposes of determining the Fund's overall allocation to U.S. equities, international equities, and fixed-income asset classes based on certain factors, including, but not limited to, the Underlying Fund's investment strategy and portfolio characteristics. The Underlying Equity and Fixed-Income Funds may engage in strategies involving non-traditional asset classes (e.g., derivatives), non-traditional investment strategies (e.g., non-correlated returns or short sales) or illiquid assets.

New York Life Investments uses a two-step asset allocation process to create the Fund's portfolio. The first step includes a strategic review of the target allocations to the equity and fixed-income asset classes and a determination of any tactical allocation adjustments to establish the portion of the Fund's investable portfolio (meaning the Fund's assets available for investment, other than working cash balances) to be invested in each asset class.

The following table illustrates the Fund's target allocations among asset classes (the target allocations and/or actual holdings will vary from time to time as a result of the tactical allocation process, although these variations will remain within the ranges described above):


	U.S. Equity	International Equity	Total Equity	Fixed-Income
MainStay Conservative Allocation Fund*	30%	10%	40%	60%

*Percentages represent target allocations, actual allocation percentages may vary up to +/-10% under normal conditions.

The second step in the portfolio's construction process involves the actual selection of Underlying Funds to represent the broad asset classes indicated above and determination of target weightings among the Underlying Funds for the Fund's portfolio. The Fund may invest in any or all of the Underlying Funds within an asset class, but will not normally invest in every Underlying Fund at one time. Selection of individual Underlying Funds is based on several factors, including, but not limited to, past performance and total portfolio characteristics (e.g., size, style, credit quality and duration). For cash management purposes, the Fund may hold a portion of its assets in U.S. government securities, cash or cash equivalents. The Fund also may invest in Underlying Funds that are money market funds.

New York Life Investments monitors the Fund's portfolio daily to ensure that the Fund's actual asset class allocations among the Underlying Funds continue to conform to the Fund's target allocations over time and may periodically adjust target asset class allocations based on various quantitative and qualitative data relating to the U.S. and international economies, securities markets, and various segments within those markets. In response to adverse market or other conditions, the Fund may, regardless of its normal asset class allocations, temporarily hold all or a portion of its assets in U.S. government securities, money market funds, cash, or cash equivalents. In connection with the asset allocation process, the Fund may from time to time invest more than 25% of its assets in one Underlying Fund.

Principal Risks of the Fund

Asset Allocation Risk: Although allocation among different asset classes generally limits the Fund's exposure to the risks of any one class, the risk remains that New York Life Investments may favor an asset class that performs poorly relative to the other asset classes. For example, deteriorating stock market conditions might cause an overall weakness in the market that reduces the absolute level of stock prices in that market. Under these circumstances, if the Fund, through its holdings of Underlying Funds, were invested primarily in stocks, it would perform poorly relative to a portfolio invested primarily in bonds. The Underlying Funds selected by New York Life Investments may underperform the market or other investments. Similarly, the portfolio managers of the Underlying Funds could be incorrect in their analysis of economic trends, countries, industries, companies, the relative attractiveness of asset classes or other matters. Moreover, because the Fund has set limitations on the amount of assets that may be allocated to each asset class, the Fund has less flexibility in its investment strategy than mutual funds that are not subject to such limitations. In addition, the asset allocations made by the Fund may not be ideal for all investors and may not effectively increase returns or decrease risk for investors.

Concentration Risk: To the extent that the Fund invests a significant portion of its assets in a single Underlying Fund, it will be particularly sensitive to the risks associated with that Underlying Fund and changes in the value of that Underlying Fund may have a significant effect on the net asset value of the Fund. Similarly, the extent to which an Underlying Fund invests a significant portion of its assets in a single industry or economic sector may also adversely impact the Fund, depending on the Fund's level of investment in that Underlying Fund.

MainStay Conservative Allocation Fund

Funds and may have an incentive to select certain Underlying Funds due to compensation considerations. Moreover, a situation could occur where proper action for the Fund could be adverse to the interest of an Underlying Fund or vice versa.

New York Life Investments and the portfolio managers have a fiduciary duty to the Fund to act in the Fund's best interests when selecting Underlying Funds. Under the oversight of the Fund’s Board of Trustees, New York Life Investments will carefully analyze any such situation and take all steps believed to be necessary to minimize and, where possible, eliminate potential conflicts.

Large Transaction Risks: To minimize disruptions to the operations of the Fund and the Underlying Funds, New York Life Investments seeks to maintain existing target allocations and to implement small changes to target allocations through the netting of purchases and redemptions of Fund shares. These practices may temporarily affect New York Life Investments' ability to fully implement the Fund's investment strategies.

Portfolio Management Risk: The investment strategies, practices and risk analysis used by the Fund's Manager may not produce the desired results. In addition, the Fund may not achieve its investment objective if the Fund's Manager takes temporary positions in response to unusual or adverse market, economic or political conditions, or other unusual or abnormal circumstances.

Principal Risks of the Underlying Funds

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money. An investment in the Fund is not guaranteed, and you may experience losses. The Fund's level of risk will depend on its investment allocation in the Underlying Funds. Principal risks of the Underlying Funds which could adversely affect the performance of the Fund, may include:

Market Changes Risk: The value of an Underlying Fund's investments may fluctuate because of changes in the markets in which the Underlying Fund invests, which could cause the Underlying Fund to underperform other funds with similar objectives. Changes in these markets may be rapid and unpredictable. From time to time, markets may experience periods of stress for potentially prolonged periods that may result in (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions. Such conditions may add significantly to the risk of volatility in the net asset value of the Underlying Fund's shares.

Portfolio Management Risk: The investment strategies, practices and risk analysis used by the Underlying Fund's manager or subadvisor may not produce the desired results. In addition, the Fund may not achieve its investment objective if the Underlying Fund's manager or subadvisor takes temporary positions in response to unusual or adverse market, economic or political conditions, or other unusual or abnormal circumstances.

Derivatives Risk: Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index. Derivative strategies may expose the Underlying Fund to greater risk and often involve leverage, which may exaggerate a loss, potentially causing the Underlying Fund to lose more money than it would have lost had it invested in the underlying instrument. Derivatives may be difficult to sell, unwind or value. Derivatives may also be subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable to honor its contractual obligations to the Underlying Fund. Futures may be more volatile than direct investments in the instrument underlying the contract, and may not correlate perfectly to the underlying instrument. Futures and other derivatives also may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. Due to fluctuations in the price of the underlying security, the Underlying Fund may not be able to profitably exercise an option and may lose its entire investment in an option. Forward commitments entail the risk that the instrument may be worth less when it is issued or received than the price the Underlying Fund agreed to pay when it made the commitment. The use of foreign currency forwards may result in currency exchange losses due to fluctuations in currency exchange rates or an imperfect correlation between portfolio holdings denominated in a particular currency and the forward contracts entered into by the Underlying Fund. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Derivatives may also increase the expenses of the Underlying Fund.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Underlying Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Debt Securities Risk: The risks of investing in debt securities include (without limitation): (i) credit risk, e.g., the issuer or guarantor of a debt security may be unable or unwilling (or be perceived as unable or unwilling) to make timely principal and/or interest payments or otherwise honor its obligations; (ii) maturity risk, e.g., a debt security with a longer maturity may fluctuate in value more than one with a shorter maturity; (iii) market risk, e.g., low demand for debt securities may negatively impact their price; (iv) interest rate risk, e.g., when interest rates go up, the value of a debt security generally goes down, and when interest rates go down, the value of a debt security generally goes up (long-term debt securities are generally more susceptible to interest rate risk than short-term debt securities); (v) call risk, e.g., during a period of falling interest rates, the issuer may redeem a security by repaying it early, which may reduce the Underlying Fund’s income if the proceeds are reinvested at lower interest rates.

Interest rates in the United States are near historic lows, which may increase an Underlying Fund’s exposure to risks associated with rising interest rates. Interest rates may rise significantly and/or rapidly. Rising interest rates or lack of market participants may lead to decreased liquidity and increased volatility in the bond markets, making it more difficult for an Underlying Fund to sell its bond holdings at a time when the manager or

MainStay Conservative Allocation Fund

subadvisor might wish to sell. Decreased liquidity in the bond markets also may make it more difficult to value some or all of an Underlying Fund’s bond holdings.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of an Underlying Fund's investments in foreign securities. Foreign securities may also subject an Underlying Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Growth Stock Risk: If growth companies do not increase their earnings at a rate expected by investors, the market price of the stock may decline significantly, even if earnings show an absolute increase. Growth company stocks also typically lack the dividend yield that can cushion stock prices in market downturns.

High-Yield Securities Risk: Investments in high-yield securities or non-investment grade securities (commonly referred to as "junk bonds") are considered speculative because they present a greater risk of loss than higher quality securities. Such securities may, under certain circumstances, be less liquid than higher rated securities. These securities pay investors a premium (a high interest rate or yield) because of the increased risk of loss. These securities can also be subject to greater price volatility. In times of unusual or adverse market, economic or political conditions, these securities may experience higher than normal default rates.

Liquidity and Valuation Risk: Securities purchased by an Underlying Fund may be illiquid at the time of purchase or liquid at the time of purchase and subsequently become illiquid due to, among other things, events relating to the issuer of the securities, market events, economic conditions, investor perceptions or lack of market participants. The lack of an active trading market may make it difficult to obtain an accurate price for a security. If market conditions or issuer specific developments make it difficult to value securities, the Underlying Fund may value these securities using more subjective methods, such as fair value pricing. In such cases, the value determined for a security could be different than the value realized upon such security's sale. As a result, the Fund could pay more than the market value when buying Underlying Fund shares or receive less than the market value when selling Underlying Fund shares. This could affect the proceeds of any redemption or the number of shares the Fund receives upon purchase. Liquidity risk may also refer to the risk that an Underlying Fund may not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, unusually high volume of redemptions, or other reasons. To meet redemption requests or to raise cash to pursue other investment opportunities, an Underlying Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions, which may adversely affect the Underlying Fund.

Small-Cap and Mid-Cap Stock Risk: Stocks of small-cap and mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than stocks of larger companies. Because these businesses frequently rely on narrower product lines and niche markets, they can suffer isolated setbacks. Smaller capitalization companies may be more vulnerable to adverse business or market developments.

Mortgage-Backed/Asset-Backed Securities Risk: Prepayment risk is associated with mortgage-backed and asset-backed securities. If interest rates fall, the underlying debt may be repaid ahead of schedule, reducing the value of the Underlying Fund's investments. If interest rates rise, there may be fewer prepayments, which would cause the average bond maturity to rise, increasing the potential for the Underlying Fund to lose money. The value of these securities may be significantly affected by changes in interest rates, the market's perception of issuers, and the creditworthiness of the parties involved. The ability of an Underlying Fund to successfully utilize these instruments may depend on the ability of the Underlying Fund's manager or subadvisor to forecast interest rates and other economic factors correctly. These securities may have a structure that makes their reaction to interest rate changes and other factors difficult to predict, making their value highly volatile.

Real Estate Investment Trust ("REIT") Risk: Investments in REITs involve risks associated with direct ownership of real estate, including decline in property values, extended vacancies, increases in property taxes and changes in interest rates. Additionally, REITs are dependent upon management skills, may not be diversified, may experience substantial cost in the event of borrower or lessee defaults and are subject to heavy cash flow dependency.

Selection Risk: The investments selected by an Underlying Fund may underperform the market or other investments .

Short Sales Risk: If a security sold short increases in price, an Underlying Fund may have to cover its short position at a higher price than the short sale price, resulting in a loss, which could be theoretically unlimited. An Underlying Fund may have substantial short positions and must borrow those securities to make delivery to the buyer. An Underlying Fund may not be able to borrow a security that it needs to deliver or it may not be able to close out a short position at an acceptable price and may have to sell related long positions before it had intended to do so. Thus, an Underlying Fund may not be able to successfully implement its short sale strategy due to limited availability of desired securities or for other reasons. By investing the proceeds received from selling securities short, an Underlying Fund is employing a form of leverage which creates special risks.

The Underlying Fund may also be required to pay a premium and other transaction costs, which would increase the cost of the security sold short. The amount of any gain will be decreased, and the amount of any loss increased, by the amount of the premium, dividends, interest or expenses the Underlying Fund may be required to pay in connection with the short sale.

MainStay Conservative Allocation Fund

Until an Underlying Fund replaces a borrowed security, it is required to maintain a segregated account of cash or liquid assets with a broker or custodian to cover the Underlying Fund's short position. Generally, securities held in a segregated account cannot be sold unless they are replaced with other liquid assets. The Underlying Fund's ability to access the pledged collateral may also be impaired in the event the broker fails to comply with the terms of the contract. In such instances the Underlying Fund may not be able to substitute or sell the pledged collateral. Additionally, an Underlying Fund must maintain sufficient liquid assets (less any additional collateral pledged to or held by the broker), marked-to-market daily, to cover the short sale obligation. This may limit an Underlying Fund's investment flexibility, as well as its ability to meet redemption requests or other current obligations.

Because losses on short sales arise from increases in the value of the security sold short, such losses are theoretically unlimited. By contrast, a loss on a long position arises from decreases in the value of the security and is limited by the fact that a security’s value cannot go below zero.

Value Stock Risk: Value stocks may never reach what the Underlying Fund's portfolio manager believes is their full value or they may go down in value. In addition, different types of stocks tend to shift in and out of favor depending on market and economic conditions, and therefore the performance of Underlying Funds that invest in value stocks may be lower or higher than that of funds that invest in other types of equity securities.

Master Limited Partnerships (“MLPs”) and Other Natural Resources Sector Companies Risks: An Underlying Fund may invest in the natural resources sector, with an emphasis on securities issued by MLPs. MLPs and other natural resources sector companies are subject to risks related to the natural resources sector, including, but not limited to, fluctuations in the prices of commodities, a significant decrease in the production of or a sustained decline in demand for energy commodities, and construction risk, development risk, acquisition risk or other risks arising from their specific business strategies. In addition, investing in MLPs involves certain risks related to investing in the underlying assets of the MLPs and risks associated with pooled investment vehicles. MLPs are subject to certain risks inherent in the structure of MLPs, including (i) tax risks; (ii) the limited ability to elect or remove management or the general partner or managing member; (iii) limited voting rights; and (iv) conflicts of interest between the general partner or managing member and its affiliates, on the one hand, and the limited partners or members, on the other hand, including those arising from incentive distribution payments or corporate opportunities. Securities issued by MLPs may experience limited trading volumes and, thus, may be relatively illiquid.

Past Performance

The following bar chart and tables indicate some of the risks of investing in the Fund. The bar chart shows you how the Fund's calendar year performance has varied over the life of the Fund. Sales loads are not reflected in the bar chart. If they were, returns would be less than those shown. The average annual total returns table shows how the Fund's average annual total returns (before and after taxes) for the one-year period, five-year period and the life of the Fund compare to those of three broad-based securities market indices as well as a composite index. The Fund has selected the Standard & Poor’s 500 ^{^®} Index (“S&P 500 ^{^®} Index”) as its primary benchmark. The S&P 500 ^{^®} Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance. The Fund has selected the MSCI EAFE ^{^®} Index as a secondary benchmark. The MSCI EAFE ^{^®} Index consists of international stocks representing the developed world outside of North America. The Fund has selected the Barclays U.S. Aggregate Bond Index as an additional benchmark. The Barclays U.S. Aggregate Bond Index is a broad-based benchmark that measures the investment grade, U.S. dollar-denominated, fixed-rate taxable bond market, including Treasuries, government-related and corporate securities, mortgage-backed securities (agency fixed-rate and hybrid adjustable rate mortgage pass-throughs), asset-backed securities, and commercial mortgage-backed securities. The Fund has selected the Conservative Allocation Composite Index as an additional benchmark. The Conservative Allocation Composite Index consists of the S&P 500 ^{^®} Index, the MSCI EAFE ^{^®} Index and the Barclays U.S. Aggregate Bond Index weighted 30%, 10% and 60%, respectively.

MainStay Conservative Allocation Fund

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	9.83	%
Worst Quarter
4Q/08	-8.84	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-7.41	%	4.36	%	4.70	%
Investor Class	-7.54	%	4.20	%	4.60	%
Class B	-7.61	%	4.27	%	4.43	%
Class C	-3.92	%	4.59	%	4.42	%
Class I	-1.84	%	5.80	%	5.58	%
Class R3	-2.36	%	5.18	%	4.92	%
Return After Taxes on Distributions
Class I	-3.14	%	4.26	%	4.19	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-0.59	%	4.14	%	4.03	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	3.03	%
Barclays U.S. Aggregate Bond Index (reflects no deductions for fees, expenses, or taxes)	0.55	%	3.25	%	4.51	%
Conservative Allocation Composite Index (reflects no deductions for fees, expenses, or taxes)	0.91	%	6.44	%	5.62	%

After-tax returns are calculated using the highest individual federal marginal income tax rates in effect at the time of each distribution or capital gain or upon the sale of fund shares, and do not reflect the impact of state and local taxes. In some cases, the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class I shares. After-tax returns for the other share classes may vary.

Management

New York Life Investment Management LLC serves as the Fund’s Manager and is responsible for the day-to-day portfolio management of the Fund.


Manager	Portfolio Managers	Service Date
New York Life Investment Management LLC	Jae S. Yoon, Senior Managing Director	Since 2011
	Jonathan Swaney, Managing Director	Since 2005
	Poul Kristensen, Managing Director	Since 2013
	Amit Soni, Director	Since February 2016

How to Purchase and Sell Shares

MainStay Conservative Allocation Fund

Class, Class B, or Class C shares, $25,000 for Class A shares and $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and a $50 minimum for subsequent purchases applies. Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

The Fund's distributions are generally taxable to you as ordinary income, capital gains, or a combination of the two, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account.

Compensation to Financial Intermediary Firms

MainStay Moderate Allocation Fund

Investment Objective

The Fund seeks long-term growth of capital and, secondarily, current income.

Fees and Expenses of the Fund


		Class A		Investor Class		Class B		Class C		Class I		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	None		None		None		None		None		None
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		0.50	%
	Other Expenses	0.10	%	0.27	%	0.27	%	0.27	%	0.10	%	0.20	% ²
	Acquired (Underlying) Fund Fees and Expenses	1.00	%	1.00	%	1.00	%	1.00	%	1.00	%	1.00	%
	Total Annual Fund Operating Expenses	1.35	%	1.52	%	2.27	%	2.27	%	1.10	%	1.70	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. Based on estimated amounts for the current fiscal year.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 680	$ 696	$ 230	$ 730	$ 230	$ 330	$ 112	$ 173
3 Years	$ 954	$ 1,004	$ 709	$ 1,009	$ 709	$ 709	$ 350	$ 536
5 Years	$ 1,249	$ 1,333	$ 1,215	$ 1,415	$ 1,215	$ 1,215	$ 606	$ 923
10 Years	$ 2,085	$ 2,263	$ 2,417	$ 2,417	$ 2,605	$ 2,605	$ 1,340	$ 2,009

Portfolio Turnover

Principal Investment Strategies

MainStay Moderate Allocation Fund

investors with a particular risk profile as represented by the asset class allocations described below, and invests in a distinct mix of Underlying Funds.

The Fund seeks to achieve its investment objective by normally investing approximately 60% (within a range of 50% to 70%) of its assets in Underlying Equity Funds, and approximately 40% (within a range of 30% to 50%) of its assets in Underlying Fixed-Income Funds. The Underlying Equity Funds may consist of approximately 15% (within a range of 5% to 25%) of international equity funds. New York Life Investments may change the asset class allocations, the Underlying Funds in which the Fund invests, or the target weighting without prior approval from shareholders. With respect to investments in Underlying Equity Funds with a global mandate, New York Life Investments will allocate such investments equally between U.S. equity funds and international equity funds.


	U.S. Equity	International Equity	Total Equity	Fixed-Income
MainStay Moderate Allocation Fund*	45%	15%	60%	40%

*Percentages represent target allocations, actual allocation percentages may vary up to +/-10% under normal conditions.

Principal Risks of the Fund

MainStay Moderate Allocation Fund

Principal Risks of the Underlying Funds

Interest rates in the United States are near historic lows, which may increase anUnderlying Fund’s exposure to risks associated with rising interest rates. Interest rates may rise significantly and/or rapidly. Rising interest rates or lack of market participants may lead to decreased liquidity and increased volatility in the bond markets, making it more difficult for anUnderlying Fund to sell its bond holdings at a time when the manager or

MainStay Moderate Allocation Fund

subadvisor might wish to sell. Decreased liquidity in the bond markets also may make it more difficult to value some or all of anUnderlying Fund’s bond holdings.

Selection Risk: The investments selected by an Underlying Fund may underperform the market or other investments .

MainStay Moderate Allocation Fund

Past Performance

The following bar chart and tables indicate some of the risks of investing in the Fund. The bar chart shows you how the Fund's calendar year performance has varied over the life of the Fund. Sales loads are not reflected in the bar chart. If they were, returns would be less than those shown. The average annual total returns table shows how the Fund's average annual total returns (before and after taxes) for the one-year period, five-year period and the life of the Fund compare to those of three broad-based securities market indices as well as a composite index. The Fund has selected the Standard & Poor’s 500 ^{^®} Index (“S&P 500 ^{^®} Index”) as its primary benchmark. The S&P 500 ^{^®} Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance. The Fund has selected the MSCI EAFE ^{^®} Index as a secondary benchmark. The MSCI EAFE ^{^®} Index consists of international stocks representing the developed world outside of North America. The Fund has selected the Barclays U.S. Aggregate Bond Index as an additional benchmark. The Barclays U.S. Aggregate Bond Index is a broad-based benchmark that measures the investment grade, U.S. dollar-denominated, fixed-rate taxable bond market, including Treasuries, government-related and corporate securities, mortgage-backed securities (agency fixed-rate and hybrid adjustable rate mortgage pass-throughs), asset-backed securities, and commercial mortgage-backed securities. The Fund has selected the Moderate Allocation Composite Index as an additional benchmark. The Moderate Allocation Composite Index consists of the S&P 500 ^{^®} Index, the MSCI EAFE ^{^®} Index and the Barclays U.S. Aggregate Bond Index weighted 45%, 15% and 40%, respectively.

MainStay Moderate Allocation Fund

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	11.90	%
Worst Quarter
4Q/08	-12.77	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-7.34	%	5.70	%	5.07	%
Investor Class	-7.50	%	5.51	%	4.97	%
Class B	-7.57	%	5.61	%	4.77	%
Class C	-3.76	%	5.91	%	4.77	%
Class I	-1.69	%	7.17	%	5.94	%
Class R3	-2.29	%	6.53	%	5.30	%
Return After Taxes on Distributions
Class I	-3.07	%	5.85	%	4.77	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-0.20	%	5.37	%	4.45	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	3.03	%
Barclays U.S. Aggregate Bond Index (reflects no deductions for fees, expenses, or taxes)	0.55	%	3.25	%	4.51	%
Moderate Allocation Composite Index (reflects no deductions for fees, expenses, or taxes)	0.98	%	7.86	%	5.99	%

Management

New York Life Investment Management LLC serves as the Fund’s Manager and is responsible for the day-to-day portfolio management of the Fund.


Manager	Portfolio Managers	Service Date
New York Life Investment Management LLC	Jae S. Yoon, Senior Managing Director	Since 2011
	Jonathan Swaney, Managing Director	Since 2005
	Poul Kristensen, Managing Director	Since 2013
	Amit Soni, Director	Since February 2016

How to Purchase and Sell Shares

MainStay Moderate Allocation Fund

Tax Information

Compensation to Financial Intermediary Firms

MainStay Moderate Growth Allocation Fund

Investment Objective

The Fund seeks long-term growth of capital and, secondarily, current income.

Fees and Expenses of the Fund


		Class A		Investor Class		Class B		Class C		Class I		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	None		None		None		None		None		None
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		0.50	%
	Other Expenses	0.11	%	0.29	%	0.29	%	0.29	%	0.11	%	0.21	% ²
	Acquired (Underlying) Fund Fees and Expenses	1.14	%	1.14	%	1.14	%	1.14	%	1.14	%	1.14	%
	Total Annual Fund Operating Expenses	1.50	%	1.68	%	2.43	%	2.43	%	1.25	%	1.85	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. Based on estimated amounts for the current fiscal year.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 694	$ 711	$ 246	$ 746	$ 246	$ 346	$ 127	$ 188
3 Years	$ 998	$ 1,050	$ 758	$ 1,058	$ 758	$ 758	$ 397	$ 582
5 Years	$ 1,323	$ 1,412	$ 1,296	$ 1,496	$ 1,296	$ 1,296	$ 686	$ 1,001
10 Years	$ 2,242	$ 2,428	$ 2,581	$ 2,581	$ 2,766	$ 2,766	$ 1,511	$ 2,169

Portfolio Turnover

Principal Investment Strategies

MainStay Moderate Growth Allocation Fund

investors with a particular risk profile as represented by the asset class allocations described below, and invests in a distinct mix of Underlying Funds.

The Fund seeks to achieve its investment objective by normally investing approximately 80% (within a range of 70% to 90%) of its assets in Underlying Equity Funds, and approximately 20% (within a range of 10% to 30%) of its assets in Underlying Fixed-Income Funds. The Underlying Equity Funds may consist of approximately 20% (within a range of 10% to 30%) of international equity funds. New York Life Investments may change the asset class allocations, the Underlying Funds in which the Fund invests, or the target weighting without prior approval from shareholders. With respect to investments in Underlying Equity Funds with a global mandate, New York Life Investments will allocate such investments equally between U.S. equity funds and international equity funds.


	U.S. Equity	International Equity	Total Equity	Fixed-Income
MainStay Moderate Growth Allocation Fund*	60%	20%	80%	20%

*Percentages represent target allocations, actual allocation percentages may vary up to +/-10% under normal conditions.

Principal Risks of the Fund

MainStay Moderate Growth Allocation Fund

Principal Risks of the Underlying Funds

Interest rates in the United States are near historic lows, which may increase anUnderlying Fund’s exposure to risks associated with rising interest rates. Interest rates may rise significantly and/or rapidly. Rising interest rates or lack of market participants may lead to decreased liquidity and increased volatility in the bond markets, making it more difficult for anUnderlying Fund to sell its bond holdings at a time when the manager or

MainStay Moderate Growth Allocation Fund

subadvisor might wish to sell. Decreased liquidity in the bond markets also may make it more difficult to value some or all of anUnderlying Fund’s bond holdings.

Selection Risk: The investments selected by an Underlying Fund may underperform the market or other investments .

MainStay Moderate Growth Allocation Fund

Past Performance

The following bar chart and tables indicate some of the risks of investing in the Fund. The bar chart shows you how the Fund's calendar year performance has varied over the life of the Fund. Sales loads are not reflected in the bar chart. If they were, returns would be less than those shown. The average annual total returns table shows how the Fund's average annual total returns (before and after taxes) for the one-year period, five-year period and the life of the Fund compare to those of three broad-based securities market indices as well as a composite index. The Fund has selected the Standard & Poor’s 500 ^{^®} Index (“S&P 500 ^{^®} Index”) as its primary benchmark. The S&P 500 ^{^®} Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance. The Fund has selected the MSCI EAFE ^{^®} Index as a secondary benchmark. The MSCI EAFE ^{^®} Index consists of international stocks representing the developed world outside of North America. The Fund has selected the Barclays U.S. Aggregate Bond Index as an additional benchmark. The Barclays U.S. Aggregate Bond Index is a broad-based benchmark that measures the investment grade, U.S. dollar-denominated, fixed-rate taxable bond market, including Treasuries, government-related and corporate securities, mortgage-backed securities (agency fixed-rate and hybrid adjustable rate mortgage pass-throughs), asset-backed securities, and commercial mortgage-backed securities. The Fund has selected the Moderate Growth Allocation Composite Index as an additional benchmark. The Moderate Growth Allocation Composite Index consists of the S&P 500 ^{^®} Index, the MSCI EAFE ^{^®} Index and the Barclays U.S. Aggregate Bond Index weighted 60%, 20% and 20%, respectively.

MainStay Moderate Growth Allocation Fund

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	14.39	%
Worst Quarter
4Q/08	-17.67	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-7.90	%	6.64	%	5.10	%
Investor Class	-8.07	%	6.45	%	5.00	%
Class B	-8.01	%	6.57	%	4.80	%
Class C	-4.32	%	6.88	%	4.80	%
Class I	-2.27	%	8.12	%	6.01	%
Class R3	-2.88	%	7.48	%	5.32	%
Return After Taxes on Distributions
Class I	-3.61	%	7.16	%	5.11	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-0.31	%	6.29	%	4.64	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	3.03	%
Barclays U.S. Aggregate Bond Index (reflects no deductions for fees, expenses, or taxes)	0.55	%	3.25	%	4.51	%
Moderate Growth Allocation Composite Index (reflects no deductions for fees, expenses, or taxes)	0.96	%	9.23	%	6.24	%

Management

New York Life Investment Management LLC serves as the Fund’s Manager and is responsible for the day-to-day portfolio management of the Fund.


Manager	Portfolio Managers	Service Date
New York Life Investment Management LLC	Jae S. Yoon, Senior Managing Director	Since 2011
	Jonathan Swaney, Managing Director	Since 2005
	Poul Kristensen, Managing Director	Since 2013
	Amit Soni, Director	Since February 2016

How to Purchase and Sell Shares

MainStay Moderate Growth Allocation Fund

Tax Information

Compensation to Financial Intermediary Firms

MainStay Growth Allocation Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund


		Class A		Investor Class		Class B		Class C		Class I		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	None		None		None		None		None		None
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		0.50	%
	Other Expenses	0.15	%	0.32	%	0.32	%	0.32	%	0.15	%	0.25	% ²
	Acquired (Underlying) Fund Fees and Expenses	1.28	%	1.28	%	1.28	%	1.28	%	1.28	%	1.28	%
	Total Annual Fund Operating Expenses	1.68	%	1.85	%	2.60	%	2.60	%	1.43	%	2.03	%
	Waivers / Reimbursements ³	0.00	%	(0.02	)%	(0.02	)%	(0.02	)%	0.00	%	0.00	%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ³	1.68	%	1.83	%	2.58	%	2.58	%	1.43	%	2.03	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. Based on estimated amounts for the current fiscal year.

3. New York Life Investment Management LLC (“New York Life Investments”) has contractually agreed to waive fees and/or reimburse expenses so that the Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase and sale of portfolio investments, and acquired (underlying) fund fees and expenses) for a class do not exceed the following amounts of its average daily net assets: Class A, 0.50%; Investor Class, 0.55%; Class B, 1.30%; Class C, 1.30%; Class I, 0.25%; and Class R3, 0.85%. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 711	$ 726	$ 261	$ 761	$ 261	$ 361	$ 146	$ 206
3 Years	$ 1,050	$ 1,098	$ 807	$ 1,107	$ 807	$ 807	$ 452	$ 637
5 Years	$ 1,412	$ 1,494	$ 1,379	$ 1,579	$ 1,379	$ 1,379	$ 782	$ 1,093
10 Years	$ 2,428	$ 2,598	$ 2,751	$ 2,751	$ 2,933	$ 2,933	$ 1,713	$ 2,358

Portfolio Turnover

MainStay Growth Allocation Fund

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 32% of the average value of its portfolio.

Principal Investment Strategies

The Fund is a "fund of funds," meaning that it seeks to achieve its investment objective by investing primarily in other MainStay Funds (the "Underlying Funds"). The Underlying Funds are described and offered for direct investment in separate prospectuses. The Fund is designed for investors with a particular risk profile as represented by the asset class allocations described below, and invests in a distinct mix of Underlying Funds.

The Fund seeks to achieve its investment objective by normally investing substantially all of its assets in Underlying Equity Funds (normally within a range of 90% to 100%). The Underlying Equity Funds may consist of approximately 25% (within a range of 15% to 35%) of international equity funds. The Fund may invest up to 10% of its assets in Underlying Fixed-Income Funds. New York Life Investments may change the asset class allocation, the Underlying Funds in which the Fund invests, or the target weighting without prior approval from shareholders. With respect to investments in Underlying Equity Funds with a global mandate, New York Life Investments will allocate such investments equally between U.S. equity funds and international equity funds.


	U.S. Equity	International Equity	Total Equity	Fixed-Income
MainStay Growth Allocation Fund*	75%	25%	100%	0%

*Percentages represent target allocations, actual allocation percentages may vary up to +/-10% under normal conditions.

Principal Risks of the Fund

MainStay Growth Allocation Fund

net asset value of the Fund. Similarly, the extent to which an Underlying Fund invests a significant portion of its assets in a single industry or economic sector may also adversely impact the Fund, depending on the Fund's level of investment in that Underlying Fund.

Conflicts of Interest: Potential conflicts of interest situations could occur. For example, New York Life Investments may be subject to potential conflicts of interest in selecting the Underlying Funds because the fees paid to it and its affiliates by some Underlying Funds are higher than the fees paid by other Underlying Funds. In addition, the Fund’s portfolio managers may also serve as portfolio managers to one or more Underlying Funds and may have an incentive to select certain Underlying Funds due to compensation considerations. Moreover, a situation could occur where proper action for the Fund could be adverse to the interest of an Underlying Fund or vice versa.

Principal Risks of the Underlying Funds

MainStay Growth Allocation Fund

generally more susceptible to interest rate risk than short-term debt securities); (v) call risk, e.g., during a period of falling interest rates, the issuer may redeem a security by repaying it early, which may reduce the Underlying Fund’s income if the proceeds are reinvested at lower interest rates.

Interest rates in the United States are near historic lows, which may increase anUnderlying Fund’s exposure to risks associated with rising interest rates. Interest rates may rise significantly and/or rapidly. Rising interest rates or lack of market participants may lead to decreased liquidity and increased volatility in the bond markets, making it more difficult for anUnderlying Fund to sell its bond holdings at a time when the manager or subadvisor might wish to sell. Decreased liquidity in the bond markets also may make it more difficult to value some or all of anUnderlying Fund’s bond holdings.

Selection Risk: The investments selected by an Underlying Fund may underperform the market or other investments .

MainStay Growth Allocation Fund

reasons. By investing the proceeds received from selling securities short, an Underlying Fund is employing a form of leverage which creates special risks.

Past Performance

MainStay Growth Allocation Fund

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	16.04	%
Worst Quarter
4Q/08	-20.72	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-8.76	%	7.20	%	4.77	%
Investor Class	-8.90	%	7.04	%	4.69	%
Class B	-8.88	%	7.16	%	4.51	%
Class C	-5.22	%	7.47	%	4.51	%
Class I	-3.17	%	8.72	%	5.68	%
Class R3	-3.79	%	8.04	%	5.00	%
Return After Taxes on Distributions
Class I	-4.41	%	8.02	%	5.02	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-0.68	%	6.90	%	4.48	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	3.03	%
Growth Allocation Composite Index (reflects no deductions for fees, expenses, or taxes)	0.87	%	10.55	%	6.39	%

Management

New York Life Investment Management LLC serves as the Fund’s Manager and is responsible for the day-to-day portfolio management of the Fund.


Manager	Portfolio Managers	Service Date
New York Life Investment Management LLC	Jae S. Yoon, Senior Managing Director	Since 2011
	Jonathan Swaney, Managing Director	Since 2005
	Poul Kristensen, Managing Director	Since 2013
	Amit Soni, Director	Since February 2016

How to Purchase and Sell Shares

MainStay Growth Allocation Fund

underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and a $50 minimum for subsequent purchases applies. Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

Investment Risks

Information about each Fund's objective, principal investment strategies, investment practices and principal risk factors appears in the relevant summary sections for each Fund at the beginning of this Prospectus. The information below describes in greater detail the investment risks pertinent to the Funds and the Underlying Funds. Some Underlying Funds may use the investments/strategies discussed below more than other Underlying Funds. Not all investments/strategies of the Underlying Funds may be described in the Prospectus.

Additional information about the investment practices of the Funds and Underlying Funds and risks pertinent to these practices is included in the Statement of Additional Information ("SAI"). The following information is provided in alphabetical order and not necessarily in order of importance.

PRINCIPAL INVESTMENT RISKS OF THE FUNDS

Asset Allocation Risk

The Funds utilize an asset allocation strategy in pursuit of their respective investment objectives. Thus, a Fund’s investment performance depends upon the Manager’s allocation and reallocation of the Fund’s assets among Underlying Funds with exposure to various asset classes, investments, advisers, strategies and/or investment styles. Although the Funds’ asset allocation strategies are intended to limit each Fund's exposure to the risks of any one asset class, investment or style, New York Life Investments may favor one or more Underlying Funds that may not achieve their investment objective and/or may underperform other investments or assets or the securities markets as a whole, thereby causing the Fund to underperform other funds with similar investment objectives and/or strategies. For example, deteriorating stock market conditions might cause an overall weakness in the market that reduces the absolute level of stock prices in that market. Under these circumstances, if the Fund, through its holdings of Underlying Funds, were invested primarily in stocks, it would perform poorly relative to a portfolio invested primarily in bonds. Similarly, the portfolio managers of the Underlying Funds could be incorrect in their analysis of economic trends, countries, industries, companies, the relative attractiveness of asset classes or other investments. Moreover, because the Funds limit the amount of a Fund’s assets that may be allocated to each asset class, a Fund has less flexibility in its investment strategy than mutual funds that are not subject to such limitations. Subject to such limitations, New York Life Investments may adjust allocations to various Underlying Funds. Such adjustments may not produce the intended results and a Fund may not achieve its investment objective, in whole or in part. In addition, the asset allocation determinations made by New York Life Investments may not be ideal for all investors and may not effectively increase returns or decrease risk for investors. Investing in an Underlying Fund will also expose the Fund to a pro rata portion of the Underlying Fund’s fees and expenses. In addition, one Underlying Fund may buy the same securities that another Underlying Fund sells. Therefore, the Fund would indirectly bear the costs of these trades without accomplishing the investment purpose.

Concentration Risk

To the extent that a Fund invests a significant portion of its assets in a single Underlying Fund, it will be particularly sensitive to the risks associated with that Underlying Fund. A Fund’s performance may, therefore, be significantly adversely affected by the performance of such Underlying Fund. An Underlying Fund may concentrate in the securities of issuers in a particular market, industry, group of industries, sector, country or asset class. Thus, the Underlying Fund may be adversely affected by the performance of those securities, may be subject to increased price volatility and may be more susceptible to adverse economic, market, political or regulatory occurrences affecting that market, industry, group of industries, sector, country or asset class. Such occurrences or developments may have a significant impact on a Fund's investment performance causing such performance to be more volatile than the investment performance of a Fund invested more broadly. For example, if an Underlying Fund is concentrated in a particular country, a Fund concentrated in such Underlying Fund would be particularly susceptible to economic, political, regulatory or other events or conditions affecting issuers and countries within the specific geographic regions in which the Underlying Fund invests.

Conflicts of Interest

Potential conflicts of interest situations could occur where New York Life Investments is subject to competing interests that have the potential to influence its investment decisions for a Fund. For example, New York Life Investments may be subject to potential conflicts of interest in selecting the Underlying Funds because the fees paid to it and its affiliates by some Underlying Funds are higher than the fees paid by other Underlying Funds. In addition, the portfolio managers may have an incentive to select certain Underlying Funds due to compensation considerations. For example, New York Life Investments may be influenced by its view of the best interests of Underlying Funds, such as a view that an Underlying Fund may benefit from additional assets or could be harmed by redemptions. New York Life Investments and the portfolio managers have a fiduciary duty to the Fund to act in the Fund's best interests when selecting Underlying Funds. Under the oversight of the Fund’s Board of Trustees, New York Life Investments will carefully analyze any such situation and take all steps believed to be necessary to minimize and, where possible, eliminate potential conflicts.

Investment Risks

Large Transaction Risk

To minimize disruptions to the operations of the Fund and the Underlying Funds, New York Life Investments seeks to maintain existing target allocations and to implement small changes to target allocations through the netting of purchases and redemptions of Fund shares. When New York Life Investments determines to initiate a transaction with an Underlying Fund, New York Life Investments generally coordinates directly with the portfolio managers of the Underlying Fund to ensure that the transactions are accommodated efficiently and in a cost effective manner, including possibly implementing trades over a period of days rather than all at once. These practices may temporarily affect New York Life Investments' ability to fully implement the Fund's investment strategies.

PRINCIPAL INVESTMENT RISKS OF THE UNDERLYING FUNDS

American Depositary Receipts ("ADRs")

Underlying Funds may invest in ADRs. ADRs, which are typically issued by a U.S. financial institution (a "depositary"), evidence ownership interests in a security or pool of securities issued by a foreign company which are held by the depositary. ADRs are denominated in U.S. dollars and trade in the U.S. securities markets. Because ADRs are not denominated in the same currency as the underlying securities into which they may be converted, they are subject to currency risks. In addition, depositary receipts involve many of the same risks of investing directly in foreign securities. Generally, ADRs are treated by the Underlying Funds the same as foreign securities.

Brady Bonds

Brady Bonds are securities created through the exchange of existing commercial bank loans to foreign sovereign entities for new obligations in connection with debt restructurings. They are generally subject to the risks of foreign securities.

Convertible Securities

Convertible securities, until converted, have the same general characteristics as debt securities insofar as they generally provide a stable stream of income with generally higher yields than those of equity securities of the same or similar issuers. By permitting the holder to exchange an investment for common stock or the cash value of a security or a basket or index of securities, convertible securities may also enable the investor to benefit from increases in the market price of the underlying securities. Therefore, convertible securities generally offer lower interest or dividend yields than non-convertible securities of similar quality.

Debt or Fixed-Income Securities

Investors buy debt securities, also referred to as fixed-income securities, primarily to profit through interest payments. Governments, banks and companies raise cash by issuing or selling debt securities to investors. Debt securities may be bought directly from those issuers or in the secondary trading markets. There are many different types of debt securities, including (without limitation) bonds, notes and debentures.

Some debt securities pay interest at fixed rates of return, while others pay interest at variable rates. Interest may be paid at different intervals. Some debt securities do not make regular interest payments, but instead are initially sold at a discount to the principal amount that is to be paid at maturity.

The risks involved with investing in debt securities include (without limitation):

· Credit risk: Credit risk is the risk that an issuer, guarantor, or liquidity provider of a debt security may be unable or unwilling, or may be perceived (whether by market participants, ratings agencies, pricing services or otherwise) as unable or unwilling, to make timely principal and/or interest payments, or to otherwise honor its obligations. The purchaser of a debt security lends money to the issuer of that security. If the issuer does not pay back the loan, the holder of the security may experience a loss on its investment. Changes in an issuer's credit rating or the market's perception of an issuer's creditworthiness may also affect the value of an Underlying Fund's investment. Although credit quality may not accurately reflect the true credit risk or liquidity of an instrument, a change in the credit quality rating of an instrument or an issuer can have a rapid, adverse effect on the instrument’s liquidity and make it more difficult for an Underlying Fund to sell the instrument at an advantageous price or time. Credit ratings assigned by rating agencies are based on a number of factors and subjective judgments and, therefore, do not necessarily represent an issuer's actual financial condition or the volatility or liquidity of the security.

· Maturity risk: A debt security with a longer maturity may fluctuate in value more than a debt security with a shorter maturity. Therefore, the net asset value ("NAV") of an Underlying Fund that holds debt securities with a longer average maturity may fluctuate in value more than the NAV of an Underlying Fund that holds debt securities with a shorter average maturity.

· Market risk: Like other securities, debt securities are subject to the forces of supply and demand. Low demand may negatively impact the price of a debt security.

· Interest rate risk: A variety of factors can cause interest rates to rise, including central bank monetary policies, inflation rates and general economic conditions. The value of debt securities usually changes when interest rates change. Generally, when interest rates go up, the value of a debt security goes down and when interest rates go down, the value of a debt security goes up. The Board of Governors of the Federal Reserve System (the “Federal Reserve”) has taken measures designed to support the U.S. economic recovery, including keeping the federal funds rate at a historically low level. The Underlying Funds may now be subject to

Investment Risks

heightened interest rate risk because the Federal Reserve has ended its quantitative easing program and has begun, and may continue, to raise interest rates.

Debt securities rated below investment grade by an independent rating agency, such as Standard & Poor's Ratings Services ("S&P") or Moody's Investors Service, Inc. ("Moody's") are considered to have speculative characteristics and some may be commonly referred to as "junk bonds." Junk bonds entail default and other risks greater than those associated with higher-rated securities.

The duration of a bond or mutual fund portfolio is an indication of sensitivity to changes in interest rates. In general, the longer an Underlying Fund's duration, the more it will react to changes in interest rates and the greater the risk and return potential. Duration may not accurately reflect the true interest rate sensitivity of instruments held by an Underlying Fund and, in turn the Underlying Fund's susceptibility to changes in interest rates.

A laddered maturity schedule means a portfolio is structured so that a certain percentage of the securities will mature each year. This helps an Underlying Fund manage duration and risk, and attempts to create a more consistent return.

Derivative Transactions

Certain Underlying Funds may enter into derivative transactions, or "derivatives," which may include options, forwards, futures, options on futures, and swap agreements. The value of derivatives is based on certain underlying equity or fixed-income securities, interest rates, currencies or indices. The use of these transactions is a highly specialized activity that involves investment techniques, tax planning and risks that are different from those of ordinary securities transactions. Derivatives may be hard to sell at an advantageous price or time and typically are very sensitive to changes in the underlying security, interest rate, currency or index.

As a result, derivatives can be highly volatile. If the manager or subadvisor of an Underlying Fund is incorrect about its expectations of changes to the underlying securities, in interest rates, currencies, indices or market conditions, the use of derivatives could result in a loss, which in some cases may be unlimited. When using derivatives, there is a risk that an Underlying Fund will lose money if the contract counterparty does not make the required payments or otherwise fails to comply with the terms of the contract.

In the event of the bankruptcy or insolvency of a counterparty, an Underlying Fund could experience the loss of some or all of its investment in a derivative or experience delays in liquidating its positions, including declines in the value of its investment during the period in which the Underlying Fund seeks to enforce its rights, and an inability to realize any gains on its investment during such period. An Underlying Fund may also incur fees and expenses in enforcing its rights. Certain derivatives are subject to mandatory clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make derivatives transactions risk-free.

In addition, certain derivative transactions can result in leverage. Leverage involves investment exposure in an amount exceeding the initial investment. Leverage can cause increased volatility by magnifying gains or losses. Investments in derivatives may increase or accelerate the amount of taxable income of an Underlying Fund or result in the deferral of losses that would otherwise be recognized by an Underlying Fund in determining the amount of dividends distributable to shareholders. As series of investment companies registered with the Securities and Exchange Commission ("SEC"), the Underlying Funds must maintain reserves of liquid assets or enter into offsetting transactions to "cover" obligations with respect to certain kinds of derivative instruments. In addition, an Underlying Fund’s use of derivatives (including covered call options and covered put options) may (i) cause the Underlying Fund to realize higher amounts of short term capital gains (generally taxed at ordinary income tax rates) (ii) preclude the Underlying Fund from designating a portion of its distributions as qualified dividend income (generally taxed at long-term capital gains rates with respect to non-corporate shareholders) or as eligible for the corporate dividends received deduction that would otherwise be eligible for such designations if the Underlying Fund had not used such instruments.

In December 2015, the SEC proposed a new rule to regulate the use of derivatives by registered investment companies. If the rule goes into effect, it could limit the ability of an Underlying Fund to invest or remain invested in derivatives. In addition, other future regulatory developments may impact an Underlying Fund’s ability to invest or remain invested in certain derivatives. Legislation or regulation may also change the way in which an Underlying Fund itself is regulated. These changes may negatively impact an Underlying Fund and/or result in a change in its investment strategy.

Emerging Markets

The risks of foreign investments (or exposure to foreign investments) are usually much greater when they are made in (or result in exposure to) emerging markets. Investments in emerging markets may be considered speculative. 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 high rates of inflation and currency devaluations, which may adversely affect returns. 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 U.S., such as price to earnings ratios, may not apply to certain emerging markets. Also, there may be less publicly available information about issuers in emerging markets than would be available

Investment Risks

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 companies in developed countries are subject.

Many emerging markets have histories of political instability and abrupt changes in policies. As a result, their governments may be more likely to take actions that are hostile or detrimental to private enterprise or foreign investment than those of more developed countries, including expropriation of assets, confiscatory taxation or unfavorable diplomatic developments. Some emerging 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. National policies that may limit the Underlying Fund's investment opportunities include restrictions on investment in issuers or industries deemed sensitive to national interests.

Emerging markets may also have differing legal systems and the existence or possible imposition of exchange controls, custodial restrictions or other laws or restrictions applicable to investments differ from those found in more developed markets. Sometimes, they may lack, or be in the relatively early development of, legal structures governing private and foreign investments and private property. In addition to withholding taxes on investment income, some emerging market countries may impose different capital gains taxes on foreign investors.

Practices in relation to settlement of securities transactions in emerging market countries involve higher risks than those in developed markets, in part because the Underlying Fund will need to use brokers and counterparties that are less well capitalized, and custody and registration of assets in some countries may be unreliable. The possibility of fraud, negligence, undue influence being exerted by the issuer or refusal to recognize ownership exists in some emerging markets, and, along with other factors, could result in ownership registration being completely lost. The Underlying Fund would absorb any loss resulting from such registration problems and may have no successful claim for compensation. In addition, communications between parties in the U.S. and parties in emerging market countries may be unreliable, increasing the risk of delayed settlements or losses of security certificates.

Equity Securities

Publicly held corporations may raise needed cash by issuing or selling equity securities to investors. When an Underlying Fund buys the equity securities of a corporation it becomes a part owner of the issuing corporation. Equity securities may be bought on domestic stock exchanges, foreign stock exchanges, or in the over-the-counter market. There are many different types of equity securities, including (without limitation) common stocks, preferred stocks, ADRs, and real estate investment trusts.

Investors buy equity securities to make money through dividend payments and/or selling them for more than they paid. The risks involved with investing in equity securities include (without limitation):

· Changing economic conditions: Equity securities may fluctuate as a result of general economic conditions, including changes in interest rates.

· Industry and company conditions: Certain industries or individual companies may come in and out of favor with investors. In addition, changing technology and competition may make the equity securities of a company or industry more volatile.

· Security selection: A portfolio manager may not be able to consistently select equity securities that appreciate in value, or anticipate changes that can adversely affect the value of an Underlying Fund's holdings. Investments in smaller and mid-size companies may be more volatile than investments in larger companies.

Exchange-Traded Funds (“ETFs”)

To the extent an Underlying Fund may invest in securities of other investment companies, the Underlying Fund may invest in shares of ETFs, including affiliated ETFs. ETFs are investment companies that trade like stocks. The price of an ETF is derived from and based upon the securities held by the ETF. However, like stocks, shares of ETFs are not traded at NAV, but may trade at prices above or below the value of their underlying portfolios. The level of risk involved in the purchase or sale of an ETF is similar to the risk involved in the purchase or sale of a traditional common stock, except that the pricing mechanism for an ETF is based on a basket of securities. Thus, the risks of owning an ETF generally reflect the risks of owning the underlying securities they are designed to track, although lack of liquidity in an ETF could result in it being more volatile than the underlying portfolio of securities. Disruptions in the markets for the securities underlying ETFs purchased or sold by an Underlying Fund could result in losses on the Underlying Fund's investment in ETFs. In addition, an actual trading market may not develop for an ETF’s shares and the listing exchange may halt trading of an ETF’s shares. ETFs are subject to management fees and other fees that may increase their costs versus the costs of owning the underlying securities directly. An Underlying Fund may from time to time invest in ETFs, primarily as a means of gaining exposure for its portfolio to the market without investing in individual securities, particularly in the context of managing cash flows into the Underlying Fund.

An Underlying Fund may invest in ETFs, among other reasons, to gain broad market, sector or asset class exposure, including during periods when it has large amounts of uninvested cash or when the Manager or Subadvisor believes share prices of ETFs offer attractive values, subject to any applicable investment restrictions in that Fund’s Prospectus and the relevant SAI.

Investment Risks

Floating Rate Loans

Floating rate loans incur some of the same risks as other debt securities, such as prepayment risk, credit risk, interest rate risk and risks found with high-yield securities. Floating rate loans may be particularly susceptible to liquidity and valuation risks because the secondary market for these investments is limited. Trades can be infrequent, which results in limited liquidity and transparency for pricing purposes. In addition, floating rate loans may be subject to certain restrictions on resale or assignment. The limited nature of the market may impair the Underlying Fund’s ability to sell or realize the full value of its investment in these loans to reinvest sale proceeds or to meet redemption obligations may be impaired. Floating rate loans generally are subject to extended settlement periods that may be longer than seven days. As a result, an Underlying Fund may be adversely affected by selling other investments at an unfavorable time and/or under unfavorable conditions to pursue other investment opportunities or to raise cash to meet redemption obligations. The Underlying Fund may also engage in borrowing transactions, such as borrowing against its credit facility, or take other actions to meet redemption obligations.

Floating rate loans are subject to the risk that the scheduled interest or principal payments will not be paid. Floating rate loans usually are rated below investment grade or if unrated, determined by the Underlying Fund’s Manager or Subadvisor to be of comparable quality (commonly referred to as "junk bonds") and involve greater risk of default on interest and principal payments than higher quality loans. In the event that a non-payment occurs, the value of that obligation likely will decline. In turn, the NAV of an Underlying Fund's shares also will decline. Generally, the lower the rating category, the more risky the investment.

Although the floating rate loans in which an Underlying Fund invests are generally speculative, they are generally subject to less credit risk than debt securities rated below investment grade, as they have features that such debt securities generally do not have. They are typically senior obligations of the borrower or issuer, are typically secured by collateral, and generally are subject to certain restrictive covenants in favor of the lenders or security holders that invest in them. However, the collateral may be difficult to liquidate, decline in value or be insufficient or unavailable to satisfy a borrower’s obligation. As a result, the Underlying Fund may not receive money or payment to which it is entitled under the loan. Floating rate loans are usually issued in connection with a financing or corporate action (such as leveraged buyout loans, leveraged recapitalizations and other types of acquisition financing). In such highly leveraged transactions, the borrower assumes large amounts of debt in order to have the financial resources to attempt to achieve its business objectives. As such, floating rate loans are usually part of highly leveraged transactions and involve a significant risk that the borrower may default or go into bankruptcy. Floating rate loans are subject to the risk that a court may subordinate an Underlying Fund’s interest to other creditors or take other actions detrimental to the Underlying Fund, including limiting the remedies or collateral available to the Underlying Fund. In times of unusual or adverse market, economic or political conditions, floating rate loans may experience higher than normal default rates.

An Underlying Fund may purchase loans via assignment, which makes the Underlying Fund a direct lender. However, an Underlying Fund may also invest in floating rate loans by purchasing a participation interest. See "Loan Participation Interests."

An Underlying Fund also may be in possession of material non-public information about a borrower as a result of its ownership of a floating rate instrument of such borrower. Because of prohibitions on trading in securities of issuers while in possession of such information, an Underlying Fund might be unable to enter into a transaction in a publicly-traded security of that borrower when it would otherwise be advantageous to do so.

In certain circumstances, floating rate loans may not be deemed to be securities. As a result, an Underlying Fund may not have the protection of the anti-fraud provisions of the federal securities laws. In such cases, the Underlying Fund generally must rely on the contractual provisions in the loan agreement and common-law fraud protections under applicable state law.

Foreign Securities

Generally, foreign securities are issued by companies organized outside the U.S. and are traded primarily in markets outside the U.S., but foreign debt securities may be traded on bond markets or over-the-counter markets in the U.S. Foreign securities may be more difficult to sell than U.S. securities. Foreign securities may be domiciled in the U.S. and traded on a U.S. market, but possess elements of foreign risk. Investments in foreign securities may involve difficulties in receiving or interpreting financial and economic information, possible imposition of taxes, higher brokerage and custodian fees, possible currency exchange controls or other government restrictions, including possible seizure or nationalization of foreign deposits or assets. Foreign securities may also be less liquid and more volatile than U.S. securities. There may also be difficulty in invoking legal protections across borders and, as a result, a Fund may have limited or no legal recourse with respect to foreign securities. In addition, investments in emerging market countries present unique and greater risks than those presented by investments in countries with developed securities markets and more advanced regulatory systems. See “Emerging Markets” above.

Many of the foreign securities in which the Underlying Funds invest will be denominated or quoted in a foreign currency. Devaluation of a currency by a country’s government or banking authority will have an adverse impact on the U.S. dollar value of any investments denominated in that currency. Changes in foreign currency exchange rates will also affect the value of securities denominated or quoted in foreign currencies. Exchange rate movements can be large and can endure for extended periods of time, affecting either favorably or unfavorably the value of an Underlying Fund's assets. However, an Underlying Fund may engage in foreign currency transactions to

Investment Risks

attempt to protect itself against fluctuations in currency exchange rates in relation to the U.S. dollar. See "Risk Management Techniques" below.

Futures Transactions

An Underlying Fund may purchase and sell single stock futures or stock index futures to hedge the equity portion of its investment portfolio with regard to market (systemic) risk or to gain market exposure to that portion of the market represented by the futures contracts. An Underlying Fund may also purchase and sell other futures when deemed appropriate, in order to hedge the equity or non-equity portions of its portfolio. In addition, to the extent that it invests in foreign securities, and subject to any applicable restriction on the Underlying Funds' ability to invest in foreign currencies, an Underlying Fund may enter into contracts for the future delivery of foreign currencies to hedge against changes in currency exchange rates. Subject to compliance with applicable rules and restrictions, an Underlying Fund also may enter into futures contracts traded on foreign futures exchanges.

An Underlying Fund may purchase and sell futures contracts on debt securities and on indices of debt securities in order to hedge against anticipated changes in interest rates that might otherwise have an adverse effect upon the value of the Underlying Fund's securities. An Underlying Fund may also enter into such futures contracts for other appropriate risk management, income enhancement and investment purposes.

There are several risks associated with the use of futures contracts and options on futures contracts. There can be no assurance that a liquid market will exist at the time when an Underlying Fund seeks to close out a futures contract. If no liquid market exists, an Underlying Fund would remain obligated to meet margin requirements until the position is closed. Futures may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. There can be no guarantee that there will be a correlation between price movements in the hedging vehicle and in the Underlying Fund's securities being hedged, even if the hedging vehicle closely correlates with the Underlying Fund's investments, such as with single stock futures contracts. If the price of a futures contract changes more than the price of the securities or currencies, an Underlying Fund will experience either a loss or a gain on the futures contracts that will not be completely offset by changes in the price of the securities or currencies that are the subject of the hedge. In addition, there are significant differences between the securities and futures markets that could result in an imperfect correlation between the markets, causing a given hedge not to achieve its objectives.

Global Depositary Receipts ("GDRs") and European Depositary Receipts ("EDRs")

To the extent an Underlying Fund may invest in foreign securities, an Underlying Fund may invest in GDRs and EDRs. GDRs and EDRs are receipts issued by foreign banks or trust companies, or foreign branches of U.S. banks that represent an interest in shares of either a foreign or U.S. corporation. GDRs and EDRs may not be denominated in the same currency as the underlying securities into which they may be converted, and are subject to currency risks. Depositary receipts involve many of the same risks of investing directly in foreign securities.

Growth Stocks

Certain Underlying Funds may invest in equity securities of companies that their portfolio managers believe will experience relatively rapid earnings growth. Such "growth stocks" typically trade at higher multiples of current earnings than other securities. Therefore, the values of growth stocks may be more sensitive to changes in current or expected earnings than the values of other securities.

The principal risk of investing in growth stocks is that investors expect growth companies to increase their earnings at a certain rate that is generally higher than the rate expected for non-growth companies. If these expectations are not met, the market price of the stock may decline significantly, even if earnings showed an absolute increase. Growth stocks also typically lack the dividend yield that can cushion stock prices in market downturns.

High-Yield Securities

High-yield or non-investment grade securities (commonly referred to as "junk bonds") are typically rated below investment grade by one or more independent rating agencies, such as S&P or Moody’s, or, if not rated, are determined to be of equivalent quality by an Underlying Fund's manager or subadvisor and are considered speculative.

Investments in high-yield securities involve greater risks than the risks associated with investments in higher rated securities. High-yield securities may be regarded as predominantly speculative with respect to the issuer's continuing ability to meet principal and interest payments. A lack of publicly-available information, irregular trading activity and wide bid/ask spreads among other factors, may, in certain circumstances, make high-yield securities more difficult to sell at an advantageous time or price than other types of securities or instruments. In addition, certain high-yield securities may not be listed on any exchange and a secondary market for such securities may be comparatively illiquid relative to markets for other fixed-income securities. These securities may be subject to higher transaction costs than higher rated securities. In times of unusual or adverse market, economic or political conditions or rising interest rates, these securities may experience higher than normal default rates. In addition, the high-yield market can experience sudden and sharp price swings attributable to a variety of factors, including changes in economic forecasts, stock market activity, large or sustained sales by major market participants or investors, or a high-profile default.

Investment Risks

Illiquid and Restricted Securities

Certain Underlying Fund's investments may include illiquid securities or restricted securities. The principal risk of investing in illiquid or restricted securities is that they may be difficult to sell.

Securities and other investments purchased by an Underlying Fund may be illiquid at the time of purchase, or liquid at the time of purchase and may subsequently become illiquid due to events relating to the issuer of the securities, market events, economic conditions or investor perceptions. Securities may also be less liquid (i.e. harder to sell) because of trading preferences, such as a buyer disfavoring purchases of odd lots or smaller blocks of securities. Domestic and foreign markets are becoming more and more complex and interrelated, so that events in one sector of the market or the economy or in one geographical region can reverberate and have negative consequences for other market, economic or regional sectors in a manner that may not be reasonably foreseen. With respect to over-the-counter traded securities, the continued viability of any over-the-counter secondary market depends on the continued willingness of dealers and other participants to purchase the securities.

If one or more instruments in an Underlying Fund's portfolio become illiquid, the Underlying Fund may exceed its limit on illiquid instruments. In the event that this occurs, the Underlying Fund must take steps to bring the aggregate amount of illiquid instruments back within the prescribed limitations as soon as reasonably practicable. This requirement would not force an Underlying Fund to liquidate any portfolio instrument where the Underlying Fund would suffer a loss on the sale of that instrument. Where no clear indication of the value of a particular investment is available, the investment will be valued at its fair value according to valuation procedures approved by the Underlying Fund's Board. These cases include, among others, situations where the secondary markets on which a security has previously been traded are no longer viable for lack of liquidity. The value of illiquid securities may reflect a discount, which may be significant, from the market price of comparable securities for which a liquid market exists, and thus negatively affect an Underlying Fund's NAV. In addition, the value of illiquid securities that subsequently become liquid may increase, positively affecting an Underlying Fund's NAV. Fund performance attributable to variations in liquidity are not necessarily an indication of future performance. For more information on fair valuation, please see "Fair Valuation and Portfolio Holdings Disclosure."

Restricted securities are securities that are sold only through negotiated private transactions and not to the general public, due to certain restrictions imposed by federal securities laws.

Large Transaction Risks

From time to time, the Underlying Funds may receive large purchase or redemption orders. Such large transactions could have adverse effects on an Underlying Fund's performance if the Underlying Fund were required to sell securities, invest cash or hold significant cash at times when it otherwise would not do so. This activity could also accelerate the realization of capital gains and increase an Underlying Fund's transaction costs.

Lending of Portfolio Securities

The Underlying Funds may lend their portfolio securities. Portfolio securities may be loaned to brokers, dealers and financial institutions to realize additional income under guidelines adopted by the board of the applicable Underlying Fund. In determining whether to lend securities, the Manager or the Subadvisors to an Underlying Fund or its/their agent, will consider relevant facts and circumstances, including the creditworthiness of the borrower. Securities lending involves the risk that an Underlying Fund may lose money in the event that the borrower fails to return the securities to the Underlying Fund in a timely manner or at all. An Underlying Fund also could lose money in the event of a decline in the value of the collateral provided for loaned securities. Furthermore, as with other extensions of credit, an Underlying Fund could lose its rights in the collateral should the borrower fail financially. Another risk of securities lending is the risk that the loaned portfolio securities may not be available to the Underlying Fund on a timely basis and the Underlying Fund may therefore lose the opportunity to sell the securities at a desirable price. Any decline in the value of a security that occurs while the security is out on loan would continue to be borne by the Underlying Fund.

Liquidity

Certain Underlying Funds are subject to liquidity risk. Liquidity risk exists when particular investments are difficult to purchase or sell, possibly preventing An Underlying Fund from selling these illiquid securities at an advantageous time or price or result in difficulties associated with valuing the securities. A Underlying Fund with principal investment strategies that involve securities of companies with smaller market capitalizations, foreign securities, derivatives or securities with substantial market and/or credit risk tend to have the greatest exposure to liquidity risk.

Markets for debt and other fixed-income securities have consistently grown over the past three decades. However, the growth of capacity for traditional dealer counterparties to engage in trading these securities has not kept pace with the broader market and, in some cases, has decreased over this period. As a result, dealer inventories of certain types of debt securities and similar instruments, which provide a primary indication of the ability of financial intermediaries to “make markets,” are at or near historic lows in relation to the size of the market for these instruments. The significant reduction in dealer inventories could potentially lead to decreased liquidity and increased volatility in the debt and fixed-income markets because market makers provide stability to the market through their intermediary services. The potential liquidity and volatility challenges in these markets could be particularly significant during certain economic and financial conditions, such as periods of economic uncertainty.

Investment Risks

Loan Participation Interests

Loan participation interests, also referred to as Participations, are fractional interests in an underlying corporate loan and may be purchased from an agent bank, co-lenders or other holders of Participations. There are three types of Participations which an Underlying Fund may purchase. A Participation in a novation of a corporate loan involves an Underlying Fund assuming all of the rights of the lender in a corporate loan, including the right to receive payments of principal and interest and other amounts directly from the borrower and to enforce its rights as a lender directly against the borrower. Second, an Underlying Fund may purchase a Participation in an assignment of all or a portion of a lender's interest in a corporate loan, in which case the Underlying Fund may be required generally to rely on the assigning lender to demand payment and to enforce its rights against the borrower, but would otherwise be entitled to all of such lender's rights in the underlying corporate loan. Third, an Underlying Fund may also purchase a Participation in a portion of the rights of a lender in a corporate loan, in which case, an Underlying Fund will be entitled to receive payments of principal, interest and fees, if any, but generally will not be entitled to enforce its rights against the agent bank or borrower. An Underlying Fund must rely on the lending institution for that purpose.

The principal credit risk associated with acquiring Participations from a co-lender or another Participant is the credit risk associated with the underlying corporate borrower. An Underlying Fund may incur additional credit risk, however, when it is in the position of Participant rather than co-lender because the Underlying Fund must then assume the risk of insolvency of the co-lender from which the Participation was purchased and that of any person interposed between the Underlying Fund and the co-lender.

Master Limited Partnerships ("MLPs")

Certain Underlying Funds may invest in MLPs. MLPs are limited partnerships in which ownership interests are publicly traded and are operated under the supervision of one or more general partners. Investments in MLPs carry many of the risks inherent in investing in a partnership. State law governing partnerships is often less restrictive than state law governing corporations. Accordingly, there may be fewer protections afforded to investors in an MLP. Limited partners may also have more limited control and limited rights to vote on matters affecting the MLP. A change in current tax law or in the underlying business mix of a given MLP could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by an Underlying Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction of the value of an investment in the Underlying Fund and lower income.

Mortgage Dollar Roll Transactions

In a mortgage dollar roll transaction, an Underlying Fund sells a mortgage-backed security from its portfolio to another party and agrees to buy a similar security from the same party at a set price at a later date. During the roll period, an Underlying Fund foregoes principal and interest paid on the securities. These transactions involve a risk of loss if the value of the securities that an Underlying Fund is obligated to purchase declines below the purchase price prior to the repurchase date. They may also have a leveraging effect on an Underlying Fund.

Mortgage-Related and Asset-Backed Securities

Mortgage-related (including mortgage-backed) and asset-backed securities are securities whose values are based on underlying pools of loans or other assets that may include interests in pools of lower-rated debt securities, consumer loans or mortgages, or complex instruments such as collateralized mortgage obligations and stripped mortgage-backed securities. The value of these securities may be significantly affected by changes in interest rates, the market's perception of the issuers and the creditworthiness of the parties involved. A portfolio manager's ability to correctly forecast interest rates and other economic factors will impact the success of investments in mortgage-related and asset-backed securities. Some securities may have a structure that makes their reaction to interest rate changes and other factors difficult to predict, making their value highly volatile. These securities may also be subject to prepayment risk if interest rates fall, and if the security has been purchased at a premium the amount of some or all of the premium may be lost in the event of prepayment. On the other hand, if interest rates rise, there may be less of the underlying debt prepaid, which would cause the average bond maturity to rise and increase the potential for an Underlying Fund to lose money.

Options

An option is a contract that gives the purchaser (holder) of the option, in return for a premium, the right to buy from (call) or sell to (put) the seller (writer) of the option the security or currency underlying the option at a specified exercise price at any time during the term of the option. If an Underlying Fund's manager or subadvisor judges market conditions incorrectly or employs a strategy that does not correlate well with the Underlying Fund's investments, these techniques could result in a loss, regardless of whether the intent was to reduce risk or increase return.

Real Estate Investment Trusts ("REITs")

Investment Risks

defaults, and are subject to heavy cash flow dependency. A REIT could possibly fail to qualify for tax free pass-through of income under the Internal Revenue Code, or could fail to maintain its exemption from registration under the 1940 Act. The failure of a company to qualify as a REIT under federal tax law may have adverse consequences.

Short Sales

If a security sold short increases in price, an Underlying Fund may have to cover its short position at a higher price than the short sale price, resulting in a loss. An Underlying Fund may have substantial short positions and may borrow those securities to make delivery to the buyer. An Underlying Fund may not be able to borrow a security that it needs to deliver or it may not be able to close out a short position at an acceptable price and may have to sell related long positions before it had intended to do so. Thus, an Underlying Fund may not be able to successfully implement its short sale strategy due to the limited availability of desired securities or for other reasons. Because losses on short sales arise from increases in the value of the security sold short, such losses are theoretically unlimited.

When borrowing a security for delivery to a buyer, an Underlying Fund also may be required to pay a premium and other transaction costs, which would increase the cost of the security sold short. An Underlying Fund must normally repay to the lender an amount equal to any dividends or interest that accrues while the loan is outstanding. The amount of any gain will be decreased, and the amount of any loss increased, by the amount of the premium, dividends, interest or expenses an Underlying Fund may be required to pay in connection with the short sale. Also, the lender of a security may terminate the loan at a time when an Underlying Fund is unable to borrow the same security for delivery. In that case, the Underlying Fund would need to purchase a replacement security at the then current market price or "buy in" by paying the lender an amount equal to the cost of purchasing the security.

Until an Underlying Fund replaces a borrowed security, it is required to maintain a segregated account of cash or liquid assets with a broker or custodian to cover the Underlying Fund's short position. Generally, securities held in a segregated account cannot be sold unless they are replaced with other liquid assets. An Underlying Fund's ability to access the pledged collateral may also be impaired in the event the broker fails to comply with the terms of the contract. In such instances, the Underlying Fund may not be able to substitute or sell the pledged collateral. Additionally, an Underlying Fund must maintain sufficient liquid assets (less any additional collateral held by or pledged to the broker), marked-to-market daily, to cover the short sale obligation. This may limit an Underlying Fund's investment flexibility, as well as its ability to meet redemption requests or other current obligations.

By investing the proceeds received from selling securities short, an Underlying Fund is employing a form of leverage, which creates special risks. The use of leverage may increase an Underlying Fund's exposure to long equity positions and make any change in the Underlying Fund's NAV greater than without the use of leverage. This could result in increased volatility of returns. There is no guarantee that an Underlying Fund will leverage its portfolio, or if it does, that the Underlying Fund's leveraging strategy will be successful. An Underlying Fund cannot guarantee that the use of leverage will produce a higher return on an investment.

Small-Cap and Mid-Cap Stocks

The general risks associated with equity securities and liquidity risk are particularly pronounced for stocks of companies with market capitalizations that are small compared to other publicly traded companies. These companies may have limited product lines, markets or financial resources or they may depend on a few key employees. Stocks of small-capitalization and mid-capitalization companies may trade less frequently and in lesser volume than more widely held securities, and their values may fluctuate more sharply than other securities. They may also trade in the over-the-counter market or on a regional exchange, or may otherwise have limited liquidity. Generally, the smaller the company, the greater these risks become.

Swap Agreements

Certain Underlying Funds may enter into swap agreements, including but not limited to, interest rate, credit default, index, equity (including total return), and currency exchange rate swap agreements to attempt to obtain a desired return at a lower cost than a direct investment in an instrument yielding that desired return. In a typical swap transaction, two parties agree to exchange the returns (or differentials in rates of returns) earned or realized on particular investments or instruments. The payments may be adjusted for transaction costs, interest payments, the amount of interest paid on the investment or instrument or other factors.

Whether the use of swap agreements will be successful will depend on whether the applicable manager or subadvisor correctly predicts movements in the value of particular securities, interest rates, indices and currency exchange rates. In addition, swap agreements entail the risk that a party will default on its payment obligations to the Fund. For example, credit default swaps can result in losses if an Underlying Fund does not correctly evaluate the creditworthiness of the company on which the credit default swap is based. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Because they are two-party contracts and because they may have terms of greater than seven days, certain swaps may be considered to be illiquid. There is a risk that the other party could go bankrupt and the Underlying Fund would lose the value of the security it should have received in the swap. See the "Tax Information" section in the SAI for information regarding the tax considerations relating to swap agreements.

Temporary Defensive Investments

Investment Risks

scope of its principal investment strategies. Under such conditions, an Underlying Fund may not invest in accordance with its investment objective or principal investment strategies and, as a result, there is no assurance that the Underlying Fund will achieve its investment objective. Under such conditions, an Underlying Fund may be permitted to invest without limit in cash, money market securities or other investments.

To-Be-Announced ("TBA") Securities

In a TBA transaction, a seller agrees to deliver to an Underlying Fund a security at a future date. However, the seller does not specify the particular security to be delivered. Instead, the Underlying Fund agrees to accept any security that meets specified terms. There can be no assurance that a security purchased on a TBA basis will be delivered by the counterparty. Also, the value of TBA securities on the delivery date may be more or less than the price paid by an Underlying Fund to purchase the securities. An Underlying Fund will lose money if the value of the TBA security declines below the purchase price and will not benefit if the value of the security appreciates above the sale price prior to delivery.

Value Stocks

Certain Underlying Funds may invest in companies that may not be expected to experience significant earnings growth, but whose securities their portfolio managers believe are selling at a price lower than their true value. Companies that issue such "value stocks" may have experienced adverse business developments or may be subject to special risks that have caused their securities to be out of favor. The principal risk of investing in value stocks is that they may never reach what an Underlying Fund's portfolio manager believes is their full value or that they may go down in value. If a portfolio manager's assessment of a company's prospects is wrong, or if the market does not recognize the value of the company, the price of that company's stock may decline or may not approach the value that the portfolio manager anticipates.

When-Issued Securities and Forward Commitments

Debt securities are often issued on a when-issued or forward commitment basis. The price (or yield) of such securities is fixed at the time a commitment to purchase is made, but delivery and payment for the securities take place at a later date. During the period between purchase and settlement, no payment is made by an Underlying Fund and no interest accrues to the Underlying Fund. There is a risk that the security could be worth less when it is issued than the price an Underlying Fund agreed to pay when it made the commitment. Similarly, an Underlying Fund may commit to purchase a security at a future date at a price determined at the time of the commitment. The same procedure and risks exist for forward commitments as for when-issued securities.

Zero Coupon and Payment-in-Kind Bonds

One or more of the Underlying Funds may purchase zero coupon bonds, which are debt obligations issued without any requirement for the periodic payment of interest typical of other types of debt securities. Certain Underlying Funds may also invest in payment-in-kind bonds. Payment-in-kind bonds normally give the issuer an option to pay in cash at a coupon payment date or in securities with a fair value equal to the amount of the coupon payment that would have been made. Zero coupon bonds are issued at a significant discount from their face value. The discount approximates the total amount of interest the bonds would accrue and compound over the period until maturity at a rate of interest reflecting the market rate at the time of issuance. Because interest on zero coupon obligations is not paid to an Underlying Fund on a current basis but is, in effect, compounded, the value of this type of security is subject to greater fluctuations in response to changing interest rates than the value of debt obligations that distribute income regularly.

Zero coupon bonds and payment-in-kind bonds tend to be subject to greater market risk than interest paying securities of similar maturities. The discount represents income, a portion of which an Underlying Fund must accrue and distribute every year even though the Underlying Fund receives no payment on the investment in that year. Therefore, these investments tend to be more volatile than securities which pay interest periodically and in cash. In addition, there may be special tax considerations associated with investing in high-yield/high-risk bonds structured as zero coupon or payment-in-kind securities. Interest on these securities is recorded annually as income even though no cash interest is received until the security's maturity or payment date. As a result, the amounts that have accrued each year are required to be distributed to shareholders and such amounts will be taxable to shareholders. Additionally, an Underlying Fund may have to sell some of its assets to distribute cash to shareholders. These actions are likely to reduce the Underlying Fund’s assets and may thereby increase its expense ratio and decrease its rate of return.

In addition to the principal investments described above, the Underlying Funds may also invest or engage in the following:

Initial Public Offerings

Certain Underlying Funds may invest in securities that are made available in initial public offerings ("IPOs"). IPO securities may be volatile, and an Underlying Fund cannot predict whether investments in IPOs will be successful. As an Underlying Fund grows in size, the positive effect of IPO investments on the Fund may decrease.

Portfolio Turnover

Investment Risks

Prospectus of each Underlying Fund. The use of certain investment strategies may generate increased portfolio turnover. An Underlying Fund with a high turnover rate (at or over 100%) often will have higher transaction costs (which are paid by the Underlying Fund) and may generate short-term capital gains (on which you’ll pay taxes, even if you or it do not sell any shares by year-end).

Regulatory Risk

Government regulation and/or intervention may change the way an Underlying Fund is regulated, affect the expenses incurred directly by the Underlying Fund and the value of its investments, and limit and/or preclude an Underlying Fund’s ability to achieve its investment objective. Government regulation may change frequently and may have significant adverse consequences. Moreover, government regulation may have unpredictable and unintended effects. In addition to exposing an Underlying Fund to potential new costs and expenses, additional regulation or changes to existing regulation may also require changes to the Underlying Fund’s investment practice. For example, many of the changes required by the Dodd-Frank Wall Street Reform and Consumer Protection Act could materially impact the value of assets the Underlying Fund holds. Certain regulatory authorities may also prohibit or restrict the ability of an Underlying Fund to engage in certain derivative transactions or short-selling of certain securities. Although there continues to be uncertainty about the full impact of these and other regulatory changes, it is the case that the Underlying Fund may be subject to a more complex regulatory framework, and incur additional costs to comply with new requirements as well as to monitor for compliance with any new requirements going forward.

Risk Management Techniques

Various techniques can be used to increase or decrease an Underlying Fund’s exposure to changing security prices, interest rates, currency exchange rates, commodity prices or other factors that affect security values. These techniques may involve derivative transactions such as buying and selling futures contracts and options on futures contracts, entering into foreign currency transactions (such as foreign currency forward contracts and options on foreign currencies) and purchasing put or call options on securities and securities indices.

These practices can be used in an attempt to adjust the risk and return characteristics of an Underlying Fund's portfolio of investments. For example, to gain exposure to a particular market, an Underlying Fund may be able to purchase a futures contract with respect to that market. The use of such techniques in an attempt to reduce risk is known as "hedging." If the manager or subadvisor of the Underlying Fund judges market conditions incorrectly or employs a strategy that does not correlate well with the Underlying Fund’s investments, these techniques could result in a loss, which in some cases may be unlimited, regardless of whether the intent was to reduce risk or increase return. These techniques may increase the volatility of an Underlying Fund and may involve a small investment of cash relative to the magnitude of the risk assumed. In addition, these techniques could result in a loss if the counterparty to the transaction does not perform as promised.

Russian Securities

Investments in securities of Russian issuers may involve greater risks than those typically associated with investments in securities of issuers in more developed countries. Such heightened risks include, among others, expropriation and/or nationalization of assets, restrictions on and government intervention in international trade, confiscatory or punitive taxation, regional conflict, political instability, including authoritarian and/or military involvement in governmental decision making, armed conflict, the imposition of economic sanctions by other nations, the impact on the economy as a result of civil war, and social instability as a result of religious, ethnic and/or socioeconomic unrest. The imposition of, or threat of the imposition of, sanctions may result in the decline of the value and liquidity of Russian securities, a weakening of the Russian Ruble or other adverse consequences to the Russian economy. In addition, sanctions could result in the immediate freeze of Russian securities, impairing the ability of an Underlying Fund to buy, sell, receive or deliver those securities. These events could have a negative effect on the performance of an Underlying Fund. The value of the Russian Ruble may be subject to a high degree of fluctuation. Moreover, an Underlying Fund may incur costs in connection with conversions between U.S. dollars and the Russian Ruble.

Yankee Debt Securities

Yankee debt securities are dollar-denominated securities of foreign issuers that are traded in the U.S. Investments in Yankee debt securities may involve many of the same risks of investing in foreign securities and debt securities.

Other information about the Funds and Underlying Funds:

Investment Policies and Objectives

Certain of the Underlying Funds have names which suggest a focus on a particular type of investment. In accordance with Rule 35d-1 under the Investment Company Act of 1940, as amended (the "1940 Act"), each of these Underlying Funds has adopted a policy that it will, under normal circumstances, invest at least 80% of the value of its assets (net assets plus the amount of any borrowings for investment purposes) in investments of the type suggested by its name. This requirement is applied at the time an Underlying Fund invests its assets. If, subsequent to an investment by an Underlying Fund, this requirement is no longer met, the Underlying Fund's future investments will be made in a manner that will bring the Underlying Fund into compliance with this requirement. In addition, in appropriate circumstances, synthetic investments may count toward the 80% minimum if they have economic characteristics similar to the other investments included in the basket. In most cases, the MainStay Funds have adopted a policy to provide a Fund's shareholders

Investment Risks

with at least 60 days' prior notice of any change in this non-fundamental policy with respect to investments of the type suggested by its name. For additional information, please see the SAI.

The Investment Objectives for most affiliated Underlying Funds and the Funds are non-fundamental and may be changed without shareholder approval. In other cases, the Investment Objectives are fundamental and cannot be changed without the approval of a majority of the relevant affiliated Underlying Fund's outstanding voting securities.

Each affiliated Underlying Fund can invest its net assets in ETFs that invest in similar securities and count such holdings towards various guideline tests (such as the 80% test required under Rule 35d-1 under the 1940 Act).

Shareholder Guide

The following pages are intended to provide information regarding how to buy and sell shares of the MainStay Funds and to help you understand the costs associated with buying, holding and selling your MainStay Fund investments. Not all of the MainStay Funds discussed below are offered in this Prospectus. Furthermore, certain share classes are not available for all MainStay Funds or to all investors.

For additional details regarding the information described in this Shareholder Guide or if you have any questions, please contact your financial adviser or the MainStay Funds by calling toll-free 800-MAINSTAY (624-6782) or by visiting our website at mainstayinvestments.com.

Please note that shares of the MainStay Funds are generally not available for purchase by foreign investors, except to certain qualified investors. The MainStay Funds reserve the right to: (i) pay dividends from net investment income and distributions from net capital gains in a check mailed to any investor who becomes a non-U.S. resident; and (ii) redeem shares and close the account of an investor who becomes a non-U.S. resident.

SIMPLE IRA Plan accounts and certain other retirement plan accounts may not be eligible to invest in certain MainStay Funds, and may only be eligible to hold Investor Class shares.

The following terms are used in this Shareholder Guide:

· "MainStay Asset Allocation Funds" collectively refers to the MainStay Conservative Allocation Fund, MainStay Moderate Allocation Fund, MainStay Moderate Growth Allocation Fund and MainStay Growth Allocation Fund.

· “MainStay Cushing Funds” collectively refers to the MainStay Cushing MLP Premier Fund, MainStay Cushing Renaissance Advantage Fund and MainStay Cushing Royalty Energy Income Fund.

· "MainStay Epoch Funds" collectively refers to the MainStay Epoch U.S. Equity Yield Fund, MainStay Epoch Global Choice Fund, MainStay Epoch Global Equity Yield Fund and MainStay Epoch International Small Cap Fund.

· "MainStay International/Global Equity Funds" collectively refers to the MainStay Emerging Markets Opportunities Fund, MainStay Epoch Global Choice Fund, MainStay Epoch Global Equity Yield Fund, MainStay Epoch International Small Cap Fund, MainStay ICAP International Fund, MainStay International Equity Fund and MainStay International Opportunities Fund.

· "MainStay Mixed Asset Funds" collectively refers to the MainStay Balanced Fund, MainStay Convertible Fund, MainStay Income Builder Fund and MainStay Marketfield Fund.

· “MainStay Municipal/Tax Advantaged Bond Funds” collectively refers to the MainStay California Tax Free Opportunities Fund, MainStay High Yield Municipal Bond Fund, MainStay New York Tax Free Opportunities Fund, MainStay Tax Advantaged Short Term Bond Fund and MainStay Tax Free Bond Fund.

· "MainStay Target Date Funds" collectively refers to the MainStay Retirement 2010 Fund, MainStay Retirement 2020 Fund, MainStay Retirement 2030 Fund, MainStay Retirement 2040 Fund, MainStay Retirement 2050 Fund and MainStay Retirement 2060 Fund.

· "MainStay Taxable Bond Funds" collectively refers to the MainStay Floating Rate Fund, MainStay Global High Income Fund, MainStay Government Fund, MainStay High Yield Corporate Bond Fund, MainStay High Yield Opportunities Fund, MainStay Indexed Bond Fund, MainStay Money Market Fund, MainStay Short Duration High Yield Fund, MainStay Total Return Bond Fund and MainStay Unconstrained Bond Fund.

· "MainStay U.S. Equity Funds" collectively refers to the MainStay Common Stock Fund, MainStay Cornerstone Growth Fund, MainStay Epoch U.S. All Cap Fund, MainStay Epoch U.S. Equity Yield Fund, MainStay Epoch U.S. Small Cap Fund, MainStay ICAP Equity Fund, MainStay ICAP Select Equity Fund, MainStay Large Cap Growth Fund, MainStay MAP Fund, MainStay S&P 500 Index Fund and MainStay U.S. Equity Opportunities Fund.

· The Board of Trustees of MainStay Funds Trust and the Board of Trustees of The MainStay Funds are collectively referred to as the "Board."

· The Investment Company Act of 1940, as amended, is referred to as the "1940 Act."

· New York Life Investment Management LLC is referred to as the "Manager" or "New York Life Investments."

· New York Life Insurance Company is referred to as "New York Life."

· NYLIM Service Company LLC is referred to as the "Transfer Agent" or "NYLIM Service Company."

· NYLIFE Distributors LLC, the MainStay Funds’ principal underwriter and distributor, is referred to as the "Distributor" or "NYLIFE Distributors."

Shareholder Guide

· The New York Stock Exchange is referred to as the "Exchange."

· Net asset value is referred to as "NAV."

· The Securities and Exchange Commission is referred to as the "SEC."

· Automated Clearing House, the electronic process by which shares may be purchased or redeemed, is referred to as “ACH.”

BEFORE YOU INVEST — DECIDING WHICH CLASS OF SHARES TO BUY

The MainStay Funds offer Investor Class, and Class A, B, C, I, P, R1, R2, R3 and R6 shares, as applicable. Each share class of a MainStay Fund represents an interest in the same portfolio of securities, has the same rights and is identical in all respects to the other classes, except that, to the extent applicable, each class also bears its own service and distribution expenses and may bear incremental transfer agency costs resulting from the Fund’s sales arrangements. In addition, each class has its own sales charge and expense structure, providing you with different choices for meeting the needs of your situation. Depending upon the number of shares of a MainStay Fund you choose to purchase, how you wish to purchase shares of a MainStay Fund and the MainStay Fund in which you wish to invest, the share classes available to you may vary.

The decision as to which class of shares is best suited to your needs depends on a number of factors that you should discuss with your financial adviser. Important factors to consider include:

· how much you plan to invest;

· how long you plan to hold your shares;

· the total expenses associated with each class of shares; and

· whether you qualify for any reduction or waiver of sales charge.

As with any business, operating a mutual fund involves costs. There are regular operating costs, such as investment advisory fees, marketing and distribution expenses, and custodial, transfer agency, legal and accounting fees, among others. These operating costs are typically paid from the assets of a MainStay Fund, and thus, all investors in the MainStay Funds indirectly share the costs. The expenses for each MainStay Fund are presented in the Funds’ respective Prospectuses in the tables entitled, "Fees and Expenses of the Fund," under the heading, "Annual Fund Operating Expenses." As the fee tables show, certain costs are borne equally by each share class. In cases where services or expenses are class-specific, such as distribution and/or service (12b-1) fees, the fees payable for transfer agency services or certain other expenses, the costs may be allocated differently among the share classes.

In addition to the direct expenses that a MainStay Fund bears, MainStay Fund shareholders indirectly bear the expenses of the other funds in which the MainStay Fund invests ("Underlying Funds"), where applicable. The tables entitled "Fees and Expenses of the Fund" reflect a MainStay Fund's estimated indirect expenses from investing in Underlying Funds based on the allocation of the MainStay Fund's assets among the Underlying Funds during the MainStay Fund's most recent fiscal year. These expenses may be higher or lower over time depending on the actual investments of the MainStay Fund's assets in the Underlying Funds and the actual expenses of the Underlying Funds.

In some cases, the Total Annual Fund Operating Expenses reflected in the tables entitled "Fees and Expenses of the Fund" may differ in part from the amounts shown in the Financial Highlights section of the applicable Prospectuses, which reflect only the operating expenses of a MainStay Fund for its prior fiscal year and do not include the MainStay Fund's share of the fees and expenses of any Underlying Fund.

Most significant among the class-specific costs are:

· Distribution and/or Service (12b-1) Fee —named after the SEC rule that permits their payment, 12b-1 fees are paid by a class of shares to reimburse the Distributor for distribution and/or shareholder services such as marketing and selling MainStay Fund shares, compensating brokers and others who sell MainStay Fund shares, advertising, printing and mailing of prospectuses, responding to shareholder inquiries, etc.

· Shareholder Service Fee —this fee covers certain services provided to retirement plans investing in Class R1, Class R2 and Class R3 shares that are not included under a MainStay Fund's 12b-1 plan, such as certain account establishment and maintenance, order processing, and communication services.

An important point to keep in mind about 12b-1 fees and shareholder service fees is that they reduce the value of your shares, and therefore, will proportionately reduce the returns you receive on your investment and any dividends that are paid. See "Information on Fees" in this section for more information about these fees.

In addition to regular operating costs, there are costs associated with an individual investor's transactions and account, such as the compensation paid to your financial adviser for helping you with your investment decisions. The MainStay Funds typically cover such costs by imposing sales charges and other fees directly on the investor either at the time of purchase or upon redemption. These charges and fees for each MainStay Fund are presented earlier in the respective Fund Prospectuses in the tables entitled, "Fees and Expenses of the Fund," under the heading, "Shareholder Fees." Such charges and fees include:

Shareholder Guide

· Initial Sales Charge —also known as a "front-end sales load," refers to a charge that is deducted from your initial investment in Investor Class and Class A shares that is used to compensate the Distributor and/or your financial adviser for their efforts and assistance to you in connection with the purchase. The key point to keep in mind about a front-end sales load is that it reduces the initial amount available to purchase MainStay Fund shares.

· Contingent Deferred Sales Charge —also known as a "CDSC" or "back-end sales load," refers to a charge that is deducted from the proceeds when you redeem MainStay Fund shares (that is, sell shares back to the MainStay Fund). The amount of CDSC that you pay will depend on how long you hold your shares and decreases to zero if you hold your shares long enough. Although you pay no sales charge at the time of purchase, the Distributor typically pays your financial adviser a commission up-front. In part to compensate the Distributor for this expense, you will pay a higher ongoing 12b-1 fee over time. Subsequently, these fees may cost you more than paying an initial sales charge.

Distribution and/or service (12b-1) fees, shareholder service fees, initial sales charges and contingent deferred sales charges are each discussed in more detail in this Shareholder Guide. Investor Class, Class A, Class B and Class C shares of the MainStay Money Market Fund are sold with no initial sales charge or CDSC and have no annual 12b-1 fees. The following table provides a summary of the differences among share classes with respect to such fees and other important factors:

Summary of Important Differences Among Share Classes


	Investor Class	Class A	Class B	Class C	Class I	Class P	Class R1	Class R2	Class R3	Class R6
Initial sales charge	Yes	Yes	None	None	None	None	None	None	None	None
Contingent deferred sales charge	None ¹	None ¹	Sliding scale during the first six years after purchase ²	1% on sale of shares held for one year or less ³	None	None	None	None	None	None
Ongoing distribution and/or service (12b-1) fees	0.25%	0.25%	0.75% ⁴ distribution and 0.25% service (1.00% total) ⁵	0.75% ⁴ distribution and 0.25% service (1.00% total) ⁵	None	None	None	0.25%	0.25% distribution and 0.25% service (0.50% total)	None
Shareholder service fee	None	None	None	None	None	None	0.10%	0.10%	0.10%	None
Conversion feature	Yes ⁶	Yes ⁶	Yes ⁶	Yes ⁶	Yes ⁶	No	Yes ⁶	Yes ⁶	Yes ⁶	Yes ⁶
Purchase maximum ⁷	None	None	$100,000	$1,000,000 ⁸	None	None	None	None	None	None

1. A CDSC of 1.00% may be imposed on certain redemptions made within one year (18 months with respect to MainStay Short Duration High Yield Fund) of the date of purchase on shares that were purchased without an initial sales charge. No sales charge applies on investments of $1 million or more ($250,000 or more with respect to MainStay California Tax Free Opportunities Fund, MainStay High Yield Municipal Bond Fund, MainStay New York Tax Free Opportunities Fund, MainStay Tax Advantaged Short Term Bond Fund and MainStay Tax Free Bond Fund; or $500,000 or more with respect to MainStay Floating Rate Fund and MainStay Short Duration High Yield Fund). The Distributor may pay a commission to financial intermediary firms on these purchases from its own resources. See "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares" below.

2. The CDSC period for MainStay Floating Rate Fund is a sliding scale during the first four years after purchase.

3. 18 months or less with respect to MainStay Short Duration High Yield Fund.

4. 0.25% for MainStay California Tax Free Opportunities Fund, MainStay New York Tax Free Opportunities Fund and MainStay Tax Free Bond Fund.

5. 0.50% for MainStay California Tax Free Opportunities Fund, MainStay New York Tax Free Opportunities Fund and MainStay Tax Free Bond Fund.

6. See the sections discussing Share Class Considerations and the section entitled "Buying, Selling, Converting and Exchanging Fund Shares—Conversions Between Share Classes" for more information on the voluntary and/or automatic conversions that apply to each share class.

7. Does not apply to purchases by certain retirement plans.

8. $250,000 or more for MainStay California Tax Free Opportunities Fund, MainStay High Yield Municipal Bond Fund, MainStay New York Tax Free Opportunities Fund, MainStay Tax Advantaged Short Term Bond Fund and MainStay Tax Free Bond Fund, or $500,000 or more for MainStay Floating Rate Fund and MainStay Short Duration High Yield Fund.

The following discussion is not intended to be investment advice or a recommendation because each investor's financial situation and considerations are different. Additionally, certain MainStay Funds have sales charge and expense structures that may alter your analysis as to which share class is most appropriate for your needs. This analysis can best be made by discussing your situation and the factors mentioned above with your financial adviser. Generally, however, Investor Class shares or Class A shares are more economical if you intend to invest larger amounts and hold your shares long-term (more than six years, for most MainStay Funds). Class C shares may be more economical if you intend to hold your shares for a shorter term (six years or less, for most MainStay Funds). Class I, Class P and Class R6 shares are the most economical, regardless of amount invested or intended holding period. Class I shares are offered only to certain institutional investors or through certain financial intermediary accounts or retirement plans. Class R6 shares are generally available only to certain retirement plans that trade on an omnibus level. Class P shares are only available to investors purchasing shares of the MainStay Marketfield Fund through a no-load transaction fee network or platform that has entered into an agreement with the Distributor or its affiliates to offer Class P shares through a no-load transaction fee network or platform. Class R1, R2 and R3 shares are available only to certain employer-sponsored retirement plans.

Shareholder Guide

If the share class that is most economical for you, given your individual financial circumstances and goals, is not offered through your financial intermediary and you are otherwise eligible to invest in that share class, you can open an account and invest directly in the MainStay Funds by submitting an application. Please see the section entitled “How to Open Your Account” in this Shareholder Guide and the Statement of Additional Information (“SAI”) for details.

Investor Class Share Considerations

· Your Investor Class shares may convert automatically to Class A shares. Investor Class share balances are examined Fund-by-Fund on a quarterly basis. If, at that time, the value of your Investor Class shares in any one MainStay Fund equals or exceeds $25,000 ($10,000 in the case of IRA or 403(b)(7) accounts that are making required minimum distributions via MainStay’s systematic withdrawal plan or systematic exchange program), whether by shareholder action or change in market value, or if you have otherwise become eligible to invest in Class A shares, your Investor Class shares of that MainStay Fund will be automatically converted into Class A shares. Eligible Investor Class shares may also convert upon request. Please note that, in most cases, you may not aggregate your holdings of Investor Class shares in multiple MainStay Funds/accounts or rely on a Right of Accumulation or Letter of Intent (each discussed below) to qualify for this conversion feature. Certain holders of Investor Class shares are not subject to this automatic conversion feature. For more information, please see the SAI.

· Please also note that if your account balance falls below $25,000 ($15,000 in the case of investors with $100,000 or more invested in the MainStay Funds combined, regardless of share class), whether by shareholder action or change in market value, after conversion to Class A shares or you otherwise no longer qualify to hold Class A shares, your account may be converted automatically to Investor Class shares. Please see "Class A Share Considerations" for more details.

· Investor Class shares generally have higher expenses than Class A shares. By maintaining your account balance in a MainStay Fund at or above $25,000 ($15,000 in the case of investors with $100,000 or more invested in the MainStay Funds combined, regardless of share class), you will continue to be eligible to hold Class A shares of the MainStay Fund. If the value of your account is below this amount, you may consider increasing your account balance to meet this minimum to qualify for Class A shares. In addition, if you have accounts with multiple MainStay Funds whose values aggregate to at least $25,000 ($15,000 in the case of investors with $100,000 or more invested in the MainStay Funds combined, regardless of share class), you may consider consolidating your accounts into a MainStay Asset Allocation Fund account to qualify for Class A shares, if such action is consistent with your investment program.

· Share class conversions are based on the relevant NAVs of the two classes at the time of the conversion and no sales load or other charge is imposed. The MainStay Funds expect all share class conversions to be made on a tax-free basis. The MainStay Funds reserve the right to modify or eliminate the share class conversion feature. When a conversion occurs, reinvested dividends and capital gains convert with the shares that are converting.

· When you invest in Investor Class shares, you pay the public offering price, which is the share price, or NAV, plus the initial sales charge that may apply to your purchase. The amount of the initial sales charge varies based on the size of your investment (see "Information on Sales Charges"). We also describe below how you may reduce or eliminate the initial sales charge (see "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares").

· Since some of your investment goes to pay an up-front sales charge when you purchase Investor Class shares, you will purchase fewer shares than you would with the same investment in certain other share classes. However, the net income attributable to Class B and Class C shares and the dividends payable on Class B and Class C shares will be reduced by the amount of the higher distribution and/or service (12b-1) fee and incremental expenses associated with each such class. Likewise, the NAV of the Class B and Class C shares generally will be reduced by such class specific expenses (to the extent a Fund has undistributed net income) and investment performance of Class B and Class C shares will be lower than that of Investor Class shares. As a result, you are usually better off purchasing Investor Class shares rather than Class B or Class C shares and paying an up-front sales charge if you:

— plan to own the shares for an extended period of time, since the higher ongoing distribution and/or service (12b-1) fees on Class B and Class C shares may eventually exceed the cost of the up-front sales charge; or

— qualify for a reduced or waived sales charge.

Class A Share Considerations

· Generally, Class A shares have a minimum initial investment amount of $25,000 per MainStay Fund. Class A share balances are examined Fund-by-Fund on a semi-annual basis. If at that time the value of your Class A shares in any one MainStay Fund is less than $25,000 ($10,000 in the case of IRA or 403(b)(7) accounts that are making required minimum distributions via MainStay's systematic withdrawal plan or systematic exchange program, and $15,000 in the case of investors with $100,000 or more invested in the MainStay Funds combined, regardless of share class), whether by shareholder action or change in market value, or if you are otherwise no longer eligible to hold Class A shares, your Class A shares of that MainStay Fund will be converted automatically into Investor Class shares. Please note that you may not aggregate holdings of Class A shares in multiple MainStay Funds/accounts or rely on a Right of Accumulation or Letter of Intent (each discussed below) in order to avoid this conversion feature.

Shareholder Guide

· Please note that if you qualify for the $15,000 minimum initial investment, you must maintain aggregate investments of $100,000 or more in the MainStay Funds, regardless of share class, and an account balance at or above $15,000 per MainStay Fund to avoid having your account automatically convert into Investor Class shares. Certain holders of Class A shares are not subject to this automatic conversion feature. For more information, please see the SAI.

· When you invest in Class A shares, you pay the public offering price, which is the share price, or NAV, plus the initial sales charge that may apply to your purchase. The amount of the initial sales charge is based on the size of your investment (see "Information on Sales Charges"). We also describe below how you may reduce or eliminate the initial sales charge (see "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares").

· Since some of your investment goes to pay an up-front sales charge when you purchase Class A shares, you will purchase fewer shares than you would with the same investment in other share classes. However, the net income attributable to Class B and Class C shares and the dividends payable on Class B and Class C shares will be reduced by the amount of the higher distribution and/or service (12b-1) fee and incremental expenses associated with each such class. Likewise, the NAV of the Class B and Class C shares generally will be reduced by such class specific expenses (to the extent a Fund has undistributed net income) and investment performance of Class B and Class C shares will be lower than that of Class A shares. As a result, you are usually better off purchasing Class A shares rather than Class B or Class C shares and paying an up-front sales charge if you:

— qualify for a reduced or waived sales charge.

Class B Share Considerations

· You pay no initial sales charge on an investment in Class B shares. However, you will pay higher ongoing distribution and/or service (12b-1) fees over the life of your investment. Over time these fees may cost you more than paying an initial sales charge on Investor Class or Class A shares. Consequently, it is important that you consider your investment goals and the length of time you intend to hold your shares when comparing your share class options.

· You should consult with your financial adviser to assess your intended purchase in light of your particular circumstances.

· The MainStay Funds will generally not accept a purchase order for Class B shares if the aggregate dollar amount will cause the client's MainStay investment to exceed $100,000.

· In most circumstances, you will pay a CDSC if you sell Class B shares within six years (four years with respect to MainStay Floating Rate Fund) of buying them (see "Information on Sales Charges"). Exchanging Class B shares into the MainStay Money Market Fund may impact your holding period. Please see “Exchanging Shares Among MainStay Funds” for more information. There are exceptions, which are described in the SAI.

· Selling Class B shares during the period in which the CDSC applies can significantly diminish the overall return on an investment.

· If you intend to hold your shares less than six years (four years with respect to MainStay Floating Rate Fund), Class C shares will generally be more economical than Class B shares of most MainStay Funds.

· When you sell Class B shares of a MainStay Fund, to minimize your sales charges, the MainStay Funds first redeem the shares that have no sales charges (shares representing the amount of any appreciation on the original value of your shares, fully aged shares, and any shares received through the reinvestment of dividends and capital gains) and then the shares you have held longest.

· Class B shares convert to Class A shares, or Investor Class shares if you are not eligible to hold Class A shares, at the end of the calendar quarter, eight years (four years with respect to MainStay Floating Rate Fund) after the date they were purchased. This reduces distribution and/or service (12b-1) fees from 1.00% to 0.25% of average daily net assets (or from 0.50% to 0.25% with respect to MainStay California Tax Free Opportunities Fund, MainStay New York Tax Free Opportunities Fund and MainStay Tax Free Bond Fund). Exchanging Class B shares into the MainStay Money Market Fund may impact your eligibility to convert at the end of the calendar quarter, eight years (four years with respect to MainStay Floating Rate Fund) after the date they were purchased. Please see “Exchanging Shares Among MainStay Funds” for more information.

· Share class conversions are based on the relevant NAVs of the two classes at the time of the conversion, and no sales load or other charge is imposed. The MainStay Funds expect all share class conversions to be made on a tax-free basis. The MainStay Funds reserve the right to modify or eliminate this share class conversion feature. When a conversion occurs, reinvested dividends and capital gains convert proportionately with the shares that are converting.

Shareholder Guide

· As of January 18, 2013, Class B shares of MainStay Cornerstone Growth Fund closed to new investors. However, then existing shareholders may continue to add to their existing account.

Class C Share Considerations

· You pay no initial sales charge on an investment in Class C shares. However, you will pay higher ongoing distribution and/or service (12b-1) fees over the life of your investment.

· In most circumstances, you will pay a 1.00% CDSC if you redeem shares held for one year or less (18 months with respect to MainStay Short Duration High Yield Fund). Exchanging Class C shares may impact your holding period. Please see “Exchanging Shares Among MainStay Funds” for more information.

· When you sell Class C shares of a MainStay Fund, to minimize your sales charges, the MainStay Funds first redeem the shares that have no sales charges (shares representing the amount of any appreciation on the original value of your shares, fully aged shares, and any shares received through the reinvestment of dividends and capital gains) and then the shares you have held longest.

· Unlike Class B shares, Class C shares do not automatically convert to Investor Class or Class A shares. As a result, long-term Class C shareholders will pay higher ongoing distribution and/or service (12b-1) fees over the life of their investment.

· The MainStay Funds will generally not accept a purchase order for Class C shares in the amount of $1,000,000 or more ($250,000 or more with respect to MainStay California Tax Free Opportunities Fund, MainStay High Yield Municipal Bond Fund, MainStay New York Tax Free Opportunities Fund, MainStay Tax Advantaged Short Term Bond Fund and MainStay Tax Free Bond Fund, or $500,000 or more with respect to MainStay Floating Rate Fund and MainStay Short Duration High Yield Fund).

Class I Share Considerations

· You pay no initial sales charge or CDSC on an investment in Class I shares.

· You do not pay any ongoing distribution and/or service (12b-1) fees.

· You may buy Class I shares if you are an:

— Institutional Investor

§ Certain employer-sponsored, association or other group retirement plans or employee benefit trusts with a service arrangement through the Distributor or its affiliates;

§ Certain financial institutions, endowments, foundations, government entities or corporations investing on their own behalf;

§ Clients transacting through financial intermediaries that purchase Class I shares through: (i) fee-based accounts that charge such clients an ongoing fee for advisory, investment, consulting or similar services; or (ii) a no-load network or platform that has entered into an agreement with the Distributor or its affiliates to offer Class I shares through a no-load network or platform.

— Individual Investor who is initially investing at least $5 million in any single MainStay Fund: (i) directly with the MainStay Fund; or (ii) through certain private banks and trust companies that have an agreement with the Distributor or its affiliates;

— Existing Class I Shareholder; or

— Existing or retired MainStay Funds Board Member, current Portfolio Manager of a MainStay Fund or an employee of a Subadvisor.

· The MainStay Asset Allocation Funds and MainStay Target Date Funds may invest in Class I shares.

Class P Share Considerations (MainStay Marketfield Fund only)

· You pay no initial sales charge or CDSC on an investment in Class P shares.

· You do not pay any ongoing distribution and/or service (12b-1) fees.

· Class P shares are only available to investors purchasing shares through a no-load transaction fee network or platform that has entered into an agreement with the Distributor or its affiliates to offer Class P shares through a no-load transaction fee network or platform.

Class R1, Class R2, Class R3 and Class R6 Share Considerations

· You pay no initial sales charge or CDSC on an investment in Class R1, Class R2, Class R3 or Class R6 shares.

· You pay ongoing shareholder service fees for Class R1, Class R2 and Class R3 shares. You also pay ongoing distribution and/or service (12b-1) fees for Class R2 and Class R3 shares.

· You do not pay ongoing shareholder service fees or ongoing distribution and/or service fees (12b-1) fees for Class R6 shares.

· Class R1, Class R2 and Class R3 shares are available in certain individual retirement accounts and in certain retirement plans that have a service arrangement with the Distributor, including:

— Section 401(a) and 457 plans;

Shareholder Guide

— Certain Section 403(b)(7) plans;

— Section 401(k), profit sharing, money purchase pension, Keogh and defined benefit plans; and

— Non-qualified deferred compensation plans.

· Class R6 shares are available in certain individual retirement accounts, including the following, provided that in each case the plan trades on an omnibus level:

— Section 401(a) and 457 plans;

— Certain Section 403(b)(7) plans;

— Section 401(k), profit sharing, money purchase pension and defined benefit plans; and

— Non-qualified deferred compensation plans.

INVESTMENT MINIMUMS AND ELIGIBILITY REQUIREMENTS

The following minimums apply if you are investing in a MainStay Fund. A minimum initial investment amount may be waived for purchases by the Board members and directors and employees of New York Life and its affiliates and subsidiaries. The MainStay Funds may also waive investment minimums for certain qualified purchases and accept additional investments of smaller amounts at their discretion. Please see the SAI for additional information.

Investor Class Shares

All MainStay Funds except MainStay Absolute Return Multi-Strategy Fund, MainStay California Tax Free Opportunities Fund, MainStay Cornerstone Growth Fund, MainStay Cushing Funds, MainStay Emerging Markets Opportunities Fund, MainStay Epoch Funds, MainStay High Yield Municipal Bond Fund, MainStay Marketfield Fund, MainStay New York Tax Free Opportunities Fund and MainStay Short Duration High Yield Fund:

· $1,000 minimum for initial and $50 minimum for subsequent purchases of any single MainStay Fund, or

· if through AutoInvest, a monthly systematic investment plan: $500 minimum for initial and $50 minimum for subsequent monthly purchases (except MainStay Money Market Fund, which requires an initial investment amount of $1,000).

MainStay Absolute Return Multi-Strategy Fund, MainStay California Tax Free Opportunities Fund, MainStay Cornerstone Growth Fund, MainStay Cushing Funds, MainStay Emerging Markets Opportunities Fund, MainStay Epoch Funds, MainStay High Yield Municipal Bond Fund, MainStay Marketfield Fund, MainStay New York Tax Free Opportunities Fund and MainStay Short Duration High Yield Fund:

· $2,500 minimum for initial and $50 minimum for subsequent purchases of any of these MainStay Funds, or

· if through AutoInvest, a monthly systematic investment plan: $2,500 minimum for initial and $50 minimum for subsequent monthly purchases.

Class A Shares

· $25,000 minimum initial investment with no minimum subsequent purchase amount requirement for any single MainStay Fund; or

· $15,000 minimum initial investment with no minimum subsequent purchase amount for investors who, in the aggregate, have assets of $100,000 or more invested in any share class of any of the MainStay Funds. To qualify for this investment minimum, all aggregated accounts must be tax reportable under the same tax identification number. You may not aggregate your holdings with the holdings of any other person or entity to qualify for this investment minimum. Please note that accounts held through financial intermediary firms (such as a broker/dealer, financial adviser or other type of institution) may not be aggregated to qualify for this investment minimum. We will only aggregate those accounts held directly with the MainStay Funds.

Please note that if you qualify for this reduced minimum, you must also maintain aggregate assets of $100,000 or more invested in any share classes of any of the MainStay Funds and an account balance at or above $15,000 per MainStay Fund to avoid having your Class A account automatically convert into Investor Class shares.

· There is no minimum initial investment and no minimum subsequent investment for Class A shares of the MainStay Money Market Fund if all of your other accounts contain Class A shares only.

Please note that if at any time you hold any class of shares other than Class A shares, your holdings in the MainStay Money Market Fund will immediately become subject to the applicable investment minimums, subsequent purchase minimums and subsequent conversion features for Class A shares.

Broker/dealers (and their affiliates) or certain service providers with customer accounts that trade primarily on an omnibus level or through the National Securities Clearing Corporation's Fund/SERV network (Levels 1-3 only); certain retirement plan accounts, including investment only plan accounts; directors and employees of New York Life and its affiliates; investors who obtained their Class A shares through certain reorganizations (including holders of Class P shares of any of the predecessor funds to the MainStay Epoch Funds as of November 16, 2009); and subsidiaries and employees of the subadvisors to any of the MainStay Funds are not subject to the minimum investment requirement for Class A shares. See the SAI for additional information.

Shareholder Guide

Class B and/or Class C Shares

· $1,000 minimum for initial and $50 minimum for subsequent purchases of any single MainStay Fund, or

· $2,500 minimum for initial and $50 minimum for subsequent purchases of any of these MainStay Funds, or

· if through AutoInvest, a monthly systematic investment plan: $2,500 minimum for initial and $50 minimum for subsequent monthly purchases.

Class I Shares

· Individual Investors—$5 million minimum for initial purchases of any single MainStay Fund and no minimum subsequent purchase amount in any MainStay Fund; and

· Institutional Investors, the MainStay Funds' existing and retired Board Members, current Portfolio Managers of the MainStay Funds and employees of Subadvisors—no minimum initial or subsequent purchase amounts in any MainStay Fund.

Please note that Class I shares may not be available for initial or subsequent purchases through certain financial intermediary firms, investment platforms or in certain types of investment accounts. See the SAI for additional information.

MainStay Marketfield Fund only : Class I shares may be available, in some instances, to investors purchasing through certain registered investment advisers that trade through non-transaction fee networks or platforms that have entered into an agreement with the Distributor or its affiliates. Investors purchasing through other registered investment advisers that trade through a non-transaction fee network or platform generally will be able to invest in Class A shares with a reduced or waived initial sales charge, as described under “Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares.” Class I shares do not have a distribution plan and do not pay a distribution fee. Class A shares have a distribution plan and pay a distribution fee. See “Information on Fees.”

Class P Shares

If you are eligible to invest in Class P shares of the MainStay Marketfield Fund, there are no minimum initial or subsequent purchase amounts.

Class R1, Class R2 and Class R3 Shares

If you are eligible to invest in Class R1, Class R2 or Class R3 shares of the MainStay Funds there are no minimum initial or subsequent purchase amounts.

Class R6 Shares

· $250,000 minimum for initial purchases of any single MainStay Fund. There is no minimum for subsequent purchase amounts.

INFORMATION ON SALES CHARGES

Investor Class Shares and Class A Shares

The initial sales charge you pay when you buy Investor Class shares or Class A shares differs depending upon the MainStay Fund you choose and the amount you invest, as indicated in the following tables. The sales charge may be reduced or eliminated for larger purchases, as described below, or as described under "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares." Any applicable sales charge will be deducted directly from your investment. All or a portion of the sales charge may be retained by the Distributor or paid to your financial intermediary firm as a concession. Investor Class shares and Class A shares of MainStay Money Market Fund are not subject to a sales charge.

Shareholder Guide

MainStay Absolute Return Multi-Strategy Fund, MainStay Balanced Fund, MainStay Common Stock Fund, MainStay Conservative Allocation Fund, MainStay Convertible Fund, MainStay Cornerstone Growth Fund, MainStay Cushing MLP Premier Fund, MainStay Cushing Renaissance Advantage Fund, MainStay Cushing Royalty Energy Income Fund, MainStay Emerging Markets Opportunities Fund, MainStay Epoch Global Choice Fund, MainStay Epoch Global Equity Yield Fund, MainStay Epoch International Small Cap Fund, MainStay Epoch U.S. All Cap Fund, MainStay Epoch U.S. Equity Yield Fund, MainStay Epoch U.S. Small Cap Fund, MainStay Growth Allocation Fund, MainStay ICAP Equity Fund, MainStay ICAP International Fund, MainStay ICAP Select Equity Fund, MainStay Income Builder Fund, MainStay International Equity Fund, MainStay International Opportunities Fund, MainStay Large Cap Growth Fund, MainStay MAP Fund, MainStay Marketfield Fund, MainStay Moderate Allocation Fund, MainStay Moderate Growth Allocation Fund, MainStay Retirement 2010 Fund, MainStay Retirement 2020 Fund, MainStay Retirement 2030 Fund, MainStay Retirement 2040 Fund, MainStay Retirement 2050 Fund, MainStay Retirement 2060 Fund and MainStay U.S. Equity Opportunities Fund


Purchase amount		Sales charges as a percentage of ¹				Typical dealer concession as a % of offering price
		Offering price		Net investment
Less than $50,000	5.50%		5.82%		4.75%
$50,000 to $99,999	4.50%		4.71%		4.00%
$100,000 to $249,999	3.50%		3.63%		3.00%
$250,000 to $499,999	2.50%		2.56%		2.00%
$500,000 to $999,999	2.00%		2.04%		1.75%
$1,000,000 or more ²	None		None		None

1. The sales charge you pay may differ slightly from the amounts listed here due to rounding calculations.

2. No sales charge applies on investments of $1 million or more, but a CDSC of 1.00% may be imposed on certain redemptions of such shares within one year of the date of purchase. The Distributor may pay a commission to financial intermediary firms on these purchases from its own resources. See "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares" below.

MainStay Indexed Bond Fund and MainStay S&P 500 Index Fund


Purchase amount		Sales charges as a percentage of ¹					Typical dealer concession as a % of offering price
		Offering price		Net investment
Less than $100,000	3.00%		3.09%			2.75%
$100,000 to $249,999	2.50%		2.56%			2.25%
$250,000 to $499,999	2.00%		2.04%			1.75%
$500,000 to $999,999	1.50%		1.52%			1.25%
$1,000,000 or more ²	None		None		None

1. The sales charge you pay may differ slightly from the amounts listed here due to rounding calculations.

MainStay Global High Income Fund, MainStay Government Fund, MainStay High Yield Corporate Bond Fund, MainStay High Yield Opportunities Fund, MainStay Total Return Bond Fund and MainStay Unconstrained Bond Fund


Purchase amount		Sales charges as a percentage of ¹				Typical dealer concession as a % of offering price
		Offering price		Net investment
Less than $100,000	4.50%		4.71%		4.00%
$100,000 to $249,999	3.50%		3.63%		3.00%
$250,000 to $499,999	2.50%		2.56%		2.00%
$500,000 to $999,999	2.00%		2.04%		1.75%
$1,000,000 or more ²	None		None		None

1. The sales charge you pay may differ slightly from the amounts listed here due to rounding calculations.

MainStay Floating Rate Fund and MainStay Short Duration High Yield Fund


Purchase amount		Sales charges as a percentage of ¹				Typical dealer concession as a % of offering price
		Offering price		Net investment
Less than $100,000	3.00%		3.09%		2.75%
$100,000 to $249,999	2.00%		2.04%		1.75%

Shareholder Guide


$250,000 to $499,999	1.50%	1.52%	1.25%
$500,000 or more ²	None	None	None

1. The sales charge you pay may differ slightly from the amounts listed here due to rounding calculations.

2. No sales charge applies on investments of $500,000 or more, but a CDSC of 1.00% may be imposed on certain redemptions of such shares within one year (18 months with respect to MainStay Short Duration High Yield Fund) of the date of purchase. The Distributor may pay a commission to financial intermediary firms on these purchases from its own resources. See "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares" below.

MainStay California Tax Free Opportunities Fund, MainStay High Yield Municipal Bond Fund, MainStay New York Tax Free Opportunities Fund and MainStay Tax Free Bond Fund


Purchase amount		Sales charges as a percentage of ¹				Typical dealer concession as a % of offering price
		Offering price		Net investment
Less than $100,000	4.50%		4.71%		4.00%
$100,000 to $249,999	3.50%		3.63%		3.00%
$250,000 or more ²	None		None		None

1. The sales charge you pay may differ slightly from the amounts listed here due to rounding calculations.

2. No sales charge applies on investments of $250,000 or more, but a CDSC of 1.00% may be imposed on certain redemptions of such shares within one year of the date of purchase. The Distributor may pay a commission to financial intermediary firms on these purchases from its own resources. See "Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares" below.

MainStay Tax Advantaged Short Term Bond Fund


Purchase amount		Sales charges as a percentage of ¹				Typical dealer concession as a % of offering price
		Offering price		Net investment
Less than $250,000	1.00%		1.01%		1.00%
$250,000 or more ²	None		None		None

1. The sales charge you pay may differ slightly from the amounts listed here due to rounding calculations.

2. No sales charge applies on investments of $250,000 or more, but a CDSC of 1.00% may be imposed on certain redemptions of such shares within one year of the date of purchase. The Distributor may pay a commission to financial intermediary firms on these purchases from its own resources. See “Sales Charge Reductions and Waivers on Investor Class Shares and Class A Shares” below.

Class B Shares

Class B shares are sold without an initial sales charge. However, if Class B shares are redeemed within six years (four years with respect to MainStay Floating Rate Fund) of their purchase, a CDSC will be deducted from the redemption proceeds, except under circumstances described in the SAI. Additionally, Class B shares have higher ongoing distribution and/or service (12b-1) fees and, over time, these fees may cost you more than paying an initial sales charge. The Class B share CDSC and the higher ongoing distribution and/or service (12b-1) fees are paid to compensate the Distributor for its expenses in connection with the sale of Class B shares. Class B shares of MainStay Money Market Fund are not subject to a sales charge. The amount of the CDSC will depend on the number of years you have held the shares that you are redeeming, according to the following schedule:

All MainStay Funds which offer Class B Shares (except MainStay Floating Rate Fund)


For shares sold in the:	Contingent deferred sales charge (CDSC) as a % of amount redeemed subject to charge
First year	5.00%
Second year	4.00%
Third year	3.00%
Fourth year	2.00%
Fifth year	2.00%
Sixth year	1.00%
Thereafter	None

MainStay Floating Rate Fund


For shares sold in the:	Contingent deferred sales charge (CDSC) as a % of amount redeemed subject to charge
First year	3.00%
Second year	2.00%

Shareholder Guide


For shares sold in the:	Contingent deferred sales charge (CDSC) as a % of amount redeemed subject to charge
Third year	2.00%
Fourth year	1.00%
Thereafter	None

Class C Shares

Class C shares are sold without an initial sales charge. However, if Class C shares are redeemed within one year of purchase (18 months with respect to MainStay Short Duration High Yield Fund), a CDSC of 1.00% will be deducted from the redemption proceeds, except under circumstances described in the SAI. Additionally, Class C shares have higher ongoing distribution and/or service (12b-1) fees and, over time, these fees may cost you more than paying an initial sales charge. The Class C share CDSC and the higher ongoing distribution and/or service (12b-1) fees are paid to compensate the Distributor for its expenses in connection with the sale of Class C shares. Class C shares of MainStay Money Market Fund are not subject to a sales charge.

Computing Contingent Deferred Sales Charge on Class B and Class C Shares

A CDSC may be imposed on redemptions of Class B and Class C shares of a MainStay Fund, at the rates previously described, at the time of any redemption by a shareholder that reduces the current value of the shareholder's Class B or Class C share account to an amount that is lower than the amount of all payments by the shareholder for the purchase of Class B shares during the preceding six years (four years with respect to MainStay Floating Rate Fund) or Class C shares during the preceding year (18 months with respect to MainStay Short Duration High Yield Fund).

However, no CDSC will be imposed to the extent that the NAV of the Class B or Class C shares redeemed does not exceed:

· the current aggregate NAV of Class B or Class C shares of the MainStay Fund purchased more than six years (four years with respect to MainStay Floating Rate Fund) prior to the redemption for Class B shares or more than one year (18 months with respect to MainStay Short Duration High Yield Fund) prior to the redemption for Class C shares; plus

· the current aggregate NAV of Class B or Class C shares of the MainStay Fund purchased through reinvestment of dividends or capital gain distributions; plus

· increases in the NAV of the investor's Class B or Class C shares of the MainStay Fund above the total amount of payments for the purchase of Class B or Class C shares of the MainStay Fund made during the preceding six years (four years with respect to MainStay Floating Rate Fund) for Class B shares or one year (18 months with respect to MainStay Short Duration High Yield Fund) for Class C shares.

There are exceptions, which are described in the SAI.

SALES CHARGE REDUCTIONS AND WAIVERS ON INVESTOR CLASS SHARES AND CLASS A SHARES

Reducing the Initial Sales Charge on Investor Class Shares and Class A Shares

You may be eligible to buy Investor Class and Class A shares of the MainStay Funds at one of the reduced sales charge rates shown in the tables above through a Right of Accumulation or a Letter of Intent, as described below. You may also be eligible for a waiver of the initial sales charge as set forth below. Each MainStay Fund reserves the right to modify or eliminate these programs at any time. However, please note the Right of Accumulation or Letter of Intent may only be used to reduce sales charges and may not be used to satisfy investment minimums or to avoid the automatic conversion feature of Investor Class or Class A shares.

· Right of Accumulation

A Right of Accumulation allows you to reduce the initial sales charge as shown in the tables above by combining the amount of your current purchase with the current market value of investments made by you, your spouse, and your children under age 21 in Investor Class, Class A, Class B, or Class C shares of most MainStay Funds. You may not include investments of previously non-commissioned shares in the MainStay Money Market Fund, investments in Class I shares or Class P shares, or your interests in any MainStay Fund held through a 401(k) plan or other employee benefit plan. For example, if you currently own $45,000 worth of Class C shares of a MainStay Fund, your spouse owns $50,000 worth of Class B shares of another MainStay Fund, and you wish to invest $15,000 in a MainStay Fund, using your Right of Accumulation you can invest that $15,000 in Investor Class or Class A shares (if eligible) and pay the reduced sales charge rate normally applicable to a $110,000 investment. For more information please see the SAI.

· Letter of Intent

Whereas the Right of Accumulation allows you to use prior investments to reach a reduced initial sales charge, a Letter of Intent allows you to qualify for a discount by combining your current purchase amount with purchases you, your spouse or children under age 21 intend to make in the near future. A Letter of Intent is a written statement of your intention to purchase Investor Class, Class A, Class B or Class C shares of one or more MainStay Funds (excluding investments of non-commissioned shares in the

Shareholder Guide

MainStay Money Market Fund) over a 24-month period. The total amount of your intended purchases will determine the reduced sales charge rate that will apply to Investor Class or Class A shares (if eligible) of the MainStay Funds purchased during that period. You can also apply a Right of Accumulation to these purchases.

Your Letter of Intent goal must be at least $100,000. Submitting a Letter of Intent does not obligate you to purchase the specified amount of shares. If you do not meet your intended purchase goal, the initial sales charge that you paid on your purchases will be recalculated to reflect the actual value of shares purchased. A certain portion of your shares will be held in escrow by the Transfer Agent for this purpose. For more information please see the SAI.

· Your Responsibility

To receive the reduced sales charge, you must inform the Transfer Agent of your eligibility and holdings at the time of your purchase if you are buying shares directly from the MainStay Funds. If you are buying MainStay Fund shares through a financial intermediary firm, you must tell your financial adviser of your eligibility for a Right of Accumulation or a Letter of Intent at the time of your purchase.

To combine shares of eligible MainStay Funds held in accounts at other intermediaries under your Right of Accumulation or a Letter of Intent, you may be required to provide the Transfer Agent or your financial adviser a copy of each account statement showing your current holdings of each eligible MainStay Fund, including statements for accounts held by you, your spouse or your children under age 21, as described above. The Transfer Agent or intermediary through which you are buying shares will combine the value of all your eligible MainStay Fund holdings based on the current NAV per share to determine what Investor Class or Class A sales charge rate you may qualify for on your current purchase. If you do not inform the Transfer Agent or your financial adviser of all of your MainStay Fund holdings or planned MainStay Fund purchases that make you eligible for a sales charge reduction or do not provide requested documentation, you may not receive the discount to which you are otherwise entitled.

More information on Investor Class and Class A share sales charge discounts is available in the SAI or on the internet at mainstayinvestments.com.

"Spouse," with respect to a Right of Accumulation and Letter of Intent is defined as the person to whom you are legally married. We also consider your spouse to include one of the following: (i) an individual of the same gender with whom you have been joined in a civil union or legal contract similar to marriage; (ii) a domestic partner, who is an individual (including one of the same gender) to whom you are not related by blood and with whom you have shared a primary residence for at least six months in a relationship as a couple where you, your domestic partner or both of you provide for the personal or financial welfare of the other without a fee; or (iii) an individual with whom you have a common law marriage, which is a marriage in a state where such marriages are recognized between a man and a woman arising from the fact that the two live together and hold themselves out as being married.

Group Benefit Plan Purchases

You will not pay an initial sales charge if you purchase Investor Class shares or Class A shares through a group retirement or other benefit plan (other than IRA plans) that meets certain criteria, including:

· 50 or more participants; or

· more than $1,000,000 in assets; or

· holds either Investor Class or Class A and Class B shares as a result of the Class B share conversion feature.

However, Investor Class shares or Class A shares purchased through a group retirement or other benefit plan (other than IRA plans) may be subject to a CDSC upon redemption. If your plan currently holds Class B shares, please consult your recordkeeper or other plan administrative service provider concerning their ability to maintain shares in multiple share classes.

Purchases Through Financial Intermediaries

You may be eligible for elimination of the initial sales charge if you purchase shares through a financial intermediary firm (such as a broker/dealer, financial adviser or financial institution) that has a contractual arrangement with the Distributor or an affiliate. The MainStay Funds have authorized these firms (and other intermediaries that the firms may designate) to accept orders. When an authorized firm or its designee has received your order, together with the purchase price of the shares, it is considered received by the MainStay Funds and will be priced at the next computed NAV. Financial intermediary firms may charge transaction fees or other fees and may modify other features such as minimum investment amounts, share class eligibility and exchange privileges.

Whether a sales charge waiver is available for your retirement plan or charitable account may depend upon the policies and procedures of your financial intermediary. Please consult your financial intermediary for further information.

Please read their program materials for any special provisions or additional service features that may apply to investing in the MainStay Funds through these firms.

Section 529 Plans

When shares of the MainStay Funds are sold to a qualified tuition program operating under Section 529 of the Internal Revenue Code, such a program may purchase Investor Class shares or Class A shares without an initial sales load.

Shareholder Guide

Other Waivers

There are other categories of purchasers who do not pay initial sales charges on Class A shares, such as personnel of the MainStay Funds and of New York Life and its affiliates. These categories are described in the SAI.

Contingent Deferred Sales Charge on Certain Investor Class and Class A Share Redemptions

If your initial sales charge is waived, we may impose a CDSC of 1.00% if you redeem your shares within one year (18 months with respect to MainStay Short Duration High Yield Fund). The Distributor may pay a commission to financial intermediary firms on such purchases from its own resources.

For more information about these considerations, call your financial adviser or the Transfer Agent toll free at 800-MAINSTAY (624-6782) , and read the information under "Purchase, Redemption, Exchanges and Repurchase—Contingent Deferred Sales Charge, Investor Class and Class A" in the SAI.

INFORMATION ON FEES

Rule 12b-1 Plans

Each MainStay Fund (except the MainStay Money Market Fund) has adopted a distribution plan under Rule 12b-1 of the 1940 Act for certain classes of shares pursuant to which distribution and/or service (12b-1) fees are paid to the Distributor. Rule 12b-1 fees are calculated and accrued daily and paid monthly. The Investor Class, Class A and Class R2 12b-1 plans typically provide for payment for distribution and/or service activities of up to 0.25% of the average daily net assets of Investor Class, Class A or Class R2 shares, respectively. The Class B and Class C 12b-1 plans each provide for payment of 0.75% for distribution and/or 0.25% for service activities for a total 12b-1 fee of up to 1.00% of the average daily net assets of Class B and Class C shares, respectively (0.50% for MainStay California Tax Free Opportunities Fund, MainStay New York Tax Free Opportunities Fund and MainStay Tax Free Bond Fund). The Class R3 12b-1 plan typically provides for payment of 0.25% for distribution and/or 0.25% for service activities for a total 12b-1 fee of up to 0.50% of the average daily net assets of Class R3 shares. The distribution activities portion of the fee is intended to pay the Distributor for distribution services, which include any activity or expense primarily intended to result in the sale of MainStay Fund shares. The service activities portion of the fee is paid to the Distributor for providing shareholders with personal services and maintaining shareholder accounts. The portion of the 12b-1 fee dedicated to service activities is in addition to the 0.10% of annual net assets paid from the Shareholder Services Plan, with regard to certain classes, as discussed in the section entitled "Shareholder Services Plans." The Distributor may pay all or a portion of the 12b-1 fee to your investment professional. Because 12b-1 fees are ongoing, over time they will increase the cost of an investment in the MainStay Fund and may cost more than some types of sales charges.

Shareholder Services Plans

Each MainStay Fund that offers Class R1, Class R2 or Class R3 shares has adopted a Shareholder Services Plan with respect to those classes. Under the terms of the Shareholder Services Plans, each MainStay Fund's Class R1, Class R2 or Class R3 shares are authorized to pay to New York Life Investments, its affiliates or independent third-party service providers, as compensation for services rendered to the shareholders of the Class R1, Class R2 or Class R3 shares, a shareholder service fee at the rate of 0.10% on an annualized basis of the average daily net assets of Class R1, Class R2 or Class R3 shares of such MainStay Fund.

Pursuant to the Shareholder Services Plans, each MainStay Fund's Class R1, Class R2 or Class R3 shares may pay for shareholder services or account maintenance services, including assistance in establishing and maintaining shareholder accounts, processing purchase and redemption orders, communicating periodically with shareholders and assisting shareholders who have questions or other needs relating to their account. Because service fees are ongoing, over time they will increase the cost of an investment in the MainStay Fund and may cost more than certain types of sales charges. With respect to the Class R2 and R3 shares, these services are in addition to those services that may be provided under the Class R2 or Class R3 12b-1 plan.

Small Account Fee

Several of the MainStay Funds have a relatively large number of shareholders with small account balances. Small accounts adversely impact the cost of providing transfer agency services. In an effort to reduce total transfer agency expenses, the MainStay Funds have implemented a small account fee. Each shareholder with an account balance of less than $1,000 will be charged an annual per account fee of $20 (assessed semi-annually, as discussed below). The fee may be deducted directly from your account balance. This small account fee will not apply to certain types of accounts including:

· Class A share, Class I share, Class P share, Class R1 share, Class R2 share, Class R3 share and Class R6 share accounts, retirement plan services bundled accounts and investment-only retirement accounts;

· accounts with active AutoInvest plans where the MainStay Funds deduct funds directly from the client's checking or savings account;

· New York Life Investments SIMPLE IRA Plan Accounts and SEP IRA Accounts that have been funded/established for less than 1 year;

· certain 403(b)(7) accounts;

Shareholder Guide

· accounts serviced by unaffiliated financial intermediary firms or third-party administrators (other than New York Life Investments SIMPLE IRA Plan Accounts); and

· certain Investor Class accounts where the small account balance is due solely to the conversion from Class B shares.

This small account fee will be deducted in $10 increments on or about March 1st and September 1st of each year. For accounts with balances of less than $10, the remaining balance will be deducted and the account will be closed. The MainStay Funds may, from time to time, consider and implement additional measures to increase the average shareholder account size and/or otherwise reduce the cost of transfer agency services. Please contact the MainStay Funds by calling toll-free 800-MAINSTAY (624-6782) for more information.

Compensation to Financial Intermediary Firms

Financial intermediary firms and their associated financial advisers are paid in different ways for the services they provide to the MainStay Funds and shareholders. Such compensation may vary depending upon the MainStay Fund sold, the amount invested, the share class purchased, the amount of time that shares are held and/or the services provided.

The Distributor may pay sales concessions to financial intermediary firms, as described in the tables under “Information on Sales Charges” above, on the purchase price of Investor Class or Class A shares sold subject to a sales charge. The Distributor retains the difference between the sales charge that you pay and the portion that it pays to financial intermediary firms as a sales concession. The Distributor or an affiliate, from its/their own resources, also may pay a finder’s fee or other compensation up to 1.00% of the purchase price of Investor Class or Class A shares, sold at NAV, to financial intermediary firms at the time of sale. The Distributor may pay a sales concession of up to 4.00% on purchases of Class B shares to financial intermediary firms at the time of sale. The Distributor may pay a sales concession of up to 1.00% on purchases of Class C shares to financial intermediary firms at the time of sale.

For share classes that have adopted a 12b-1 plan, the Distributor may also pay, pursuant to the 12b-1 plan, distribution-related and other service fees to qualified financial intermediary firms for providing certain shareholder services.

In addition to the payments described above, the Distributor or an affiliate may pay from its/their own resources additional fees to certain financial intermediary firms, including an affiliated broker/dealer, in connection with the sale of any class of MainStay Fund shares (other than Class R6) and/or shareholder or account servicing arrangements. The amount paid to financial intermediary firms pursuant to these sales and/or servicing fee arrangements varies and may involve payments of up to 0.25% on new sales and/or up to 0.35% annually on assets held or fixed dollar amounts according to the terms of the agreement between the Distributor and/or its affiliate and the financial intermediary. The Distributor or an affiliate may make these payments based on factors including, but not limited to, the distribution potential of the financial intermediary, the types of products and programs offered by the financial intermediary, the level and/or type of marketing and administrative support provided by the financial intermediary, the level of assets attributable to and/or sales by the financial intermediary and the quality of the overall relationship with the financial intermediary. Such payments may qualify a Fund for preferred status with the financial intermediary receiving the payments or provide the representatives of the Distributor with access to representatives of the financial intermediary’s sales force, in some cases on a preferential basis over the mutual funds and/or representatives of the Funds’ competitors.

The Distributor, from its own resources or from those of an affiliate, also may reimburse financial intermediary firms in connection with their marketing activities supporting the MainStay Funds. To the extent permitted under applicable U.S. Securities and Exchange Commission and Financial Industry Regulatory Authority rules and other applicable laws and regulations, the Distributor or an affiliate may sponsor training or informational meetings or provide other non-monetary benefits for financial intermediary firms and their associated financial advisers and may make other payments or allow other promotional incentives or payments to financial intermediaries.

Wholesaler representatives of the Distributor communicate with financial intermediary firms on a regular basis to educate financial advisers about the MainStay Funds and to encourage the purchase of MainStay Fund shares by their clients. The Distributor, from its own resources or from those of an affiliate, may absorb the costs and expenses associated with these efforts, which may include travel, lodging, sponsorship at educational seminars and conferences, entertainment and meals to the extent permitted by law. The Distributor, from its own resources or from those of an affiliate, provides compensation to its wholesaler representatives for their sales efforts in promoting sales of the MainStay Funds, which may vary based on the MainStay Funds being promoted and/or which financial intermediary firms and/or financial advisers are involved in selling Fund shares or are listed on Fund accounts.

To the extent that financial intermediaries receiving payments from the Distributor or an affiliate sell more shares of the MainStay Funds or retain more shares of the Funds for their clients’ accounts, New York Life Investments and its affiliates benefit from the incremental management and other fees they receive with respect to those assets.

In addition to the payments described above, NYLIM Service Company or an affiliate may make payments to financial intermediary firms that provide sub-transfer agency and other administrative services in addition to supporting distribution of the MainStay Funds. NYLIM Service Company uses a portion of the transfer agent fees it receives from the Funds to make these sub-transfer agency and other administrative payments. To the extent that the fee amounts payable by NYLIM Service Company or an affiliate for such sub-transfer agency and other administrative services exceed the corresponding transfer agent fees that the Funds pay to NYLIM Service Company,

Shareholder Guide

then NYLIM Service Company or an affiliate will pay the difference from its own resources. In connection with these arrangements, NYLIM Service Company may retain a portion of the fees for the sub-transfer agency oversight, support and administrative services it provides.

For Class R6 shares, no compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker-dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources. Class R6 shares do not provide for the payment of sales commissions, Rule 12b-1 fees, or other compensation to financial intermediaries for their efforts in assisting in the sale of, or in selling the Fund’s shares.

Although financial firms that sell MainStay Fund shares may execute brokerage transactions for a MainStay Fund’s portfolio, the MainStay Funds, New York Life Investments and MainStay Fund subadvisors do not consider the sale of MainStay Fund shares as a factor when choosing financial firms to effect brokerage transactions.

The types and amounts of payments described above can be significant to the financial intermediary. Payments made from the Distributor’s or an affiliate’s resources do not increase the price or decrease the amount or value of the shares you purchase. However, if investment advisers, distributors or affiliates of mutual funds make such payments in differing amounts, financial intermediary firms and their financial advisers may have financial incentives for recommending a particular mutual fund or a particular share class of that fund over other mutual funds. For example, payments made by the Distributor or an affiliate, as described above, may be used by the financial intermediary firm to reduce or eliminate transaction charges associated with purchases of MainStay Fund shares. Payments made from the Distributor’s or an affiliate’s own resources are not reflected in tables in the “Fees and Expenses of the Fund” section of the prospectus because the payments are not made by the Funds.

For more information regarding the types of compensation described above, see the SAI or consult with your financial intermediary firm or financial adviser. You should also review carefully any disclosure by your financial intermediary firm as to compensation received by that firm and/or your financial adviser.

BUYING, SELLING, CONVERTING AND EXCHANGING FUND SHARES
HOW TO OPEN YOUR ACCOUNT

Investor Class, Class A, Class B or Class C Shares

Return your completed MainStay Funds application in good order with a check payable to the MainStay Funds for the amount of your investment to your financial adviser or directly to MainStay Funds, P.O. Box 8401, Boston, Massachusetts 02266-8401. Please note that if you select Class A shares on your application and you are not eligible to invest in Class A shares, we will treat your application as being in good order but will invest you in Investor Class shares of the same MainStay Fund. Similarly, if you select Investor Class shares and you are eligible to invest in Class A shares we will treat your application as being in good order, but will invest you in Class A shares of the same MainStay Fund.

Good order means all the necessary information, signatures and documentation have been fully completed. With respect to a redemption request, good order generally means that for certificated shares, a stock power or certificate must be endorsed, and for uncertificated shares a letter must be signed, by the record owner(s) exactly as the shares are registered, and a Medallion Signature Guarantee may be required. See “Medallion Signature Guarantees” below. In cases where a redemption is requested by a corporation, partnership, trust, fiduciary or any other person other than the record owner, written evidence of authority acceptable to NYLIM Service Company must be submitted before the redemption request will be processed.

Class I, Class P, Class R1, Class R2, Class R3 and Class R6 Shares

If you are participating in a company savings plan, such as a 401(k) plan, profit sharing plan, defined benefit plan, Keogh or other employee-directed plan, your company will provide you with the information you need to open an account and buy or sell Class I, Class P, Class R1, Class R2, Class R3 or Class R6 shares of the MainStay Funds.

If you are investing through a financial intermediary firm, the firm will assist you with opening an account.

Special Note for MainStay Target Date Funds

The MainStay Target Date Funds are generally sold to retirement plans and individual retirement accounts only through certain financial intermediaries.

All Classes

You buy shares at NAV (plus, for Investor Class and Class A shares, any applicable front-end sales charge). NAV is generally calculated by each MainStay Fund as of the Fund’s close (usually 4:00 pm Eastern time) on the Exchange every day the Exchange is open. The MainStay Funds do not usually calculate their NAVs on days when the Exchange is scheduled to be closed. When you buy shares, you must pay the NAV next calculated after we receive your purchase request in good order. Alternatively, the MainStay Funds have arrangements with certain financial intermediary firms whereby purchase requests through these entities are considered received in good

Shareholder Guide

order when received by the financial intermediary firm together with the purchase price of the shares ordered. The order will then be priced at a MainStay Fund's NAV next computed after receipt in good order of the purchase request by these entities. Such financial intermediary firms are responsible for timely and accurately transmitting the purchase request to the MainStay Funds.

If the Exchange is closed due to inclement weather, technology problems or any other reason on a day it would normally be open for business, or the Exchange has an unscheduled early closing on a day it has opened for business, a MainStay Fund reserves the right to treat such day as a business day and accept purchase and redemption orders until, and calculate its NAV as of, the normally scheduled close of regular trading on the NYSE for that day, so long as New York Life Investments believes there generally remains an adequate market to obtain reliable and accurate market quotations. On any business day when the Securities Industry and Financial Markets Association recommends that the bond markets close trading early, a MainStay Fund reserves the right to close at such earlier closing time, and therefore accept purchase and redemption orders until, and calculate a Fund’s NAV as of, such earlier closing time.

When you open your account, you may also want to choose certain buying and selling options, including transactions by wire. In most cases, these choices can be made later in writing, but it may be quicker and more convenient to decide on them when you open your account. Please note that your bank may charge a fee for wire transfers.

To help the government fight the funding of terrorism and money laundering activities, federal law requires all financial institutions to obtain, verify and record information that identifies each person who opens a new account and to determine whether such person's name appears on government lists of known or suspected terrorists and terrorist organizations. As a result, the MainStay Funds, or your financial adviser on their behalf, must obtain the following information for each person who opens a new account:

· Name;

· Date of birth (for individuals);

· Residential or business street address (although post office boxes are still permitted for mailing); and

· Social security number or taxpayer identification number.

You may also be asked for a copy of your driver's license, passport or other identifying document in order to verify your identity. In addition, it may be necessary to verify your identity by cross-referencing your identification information with a consumer report or other electronic database. Additional information may be required to open accounts for corporations and other entities.

Federal law prohibits the MainStay Funds and other financial institutions from opening a new account unless they receive the minimum identifying information listed above.

After an account is opened, the MainStay Funds may restrict your ability to purchase additional shares until your identity is verified. The MainStay Funds also may close your account or take other appropriate action if they are unable to verify your identity within a reasonable time. If your account is closed for this reason, your shares will be redeemed at the NAV next calculated after the account is closed.

CONVERSIONS BETWEEN SHARE CLASSES

In addition to any automatic conversion features described above in this Shareholder Guide with respect to Investor Class, Class A and Class B shares, you generally may also elect on a voluntary basis to convert:

· Investor Class shares into Class A shares, or Investor Class shares that are no longer subject to a CDSC into Class I shares, of the same MainStay Fund, subject to satisfying the eligibility requirements of Class A or Class I shares.

· Class A shares that are no longer subject to a CDSC into Class I shares of the same MainStay Fund, subject to satisfying the eligibility requirements of Class I shares.

· Class C shares that are no longer subject to a CDSC into Class A or Class I shares of the same MainStay Fund to facilitate participation in a fee-based advisory program, subject to satisfying the eligibility requirements of Class A or Class I shares.

Also, you generally may elect on a voluntary basis to convert your Investor Class, Class A or Class C shares that are no longer subject to a CDSC, or Class I, Class R1, Class R2 or Class R3 shares, into Class R6 shares of the same MainStay Fund, subject to satisfying the eligibility requirements of Class R6 shares.

Shareholder Guide

These limitations do not impact any automatic conversion features described elsewhere in this Shareholder Guide with respect to Investor Class, Class A and Class B shares. An investor may directly or through his or her financial intermediary contact the MainStay Funds to request a voluntary conversion between share classes of the same MainStay Fund as described above. You may be required to provide sufficient information to establish eligibility to convert to the new share class. Class B and Class P shares are ineligible for a voluntary conversion. All permissible conversions will be made on the basis of the relevant NAVs of the two classes without the imposition of any sales load, fee or other charge. If you fail to remain eligible for the new share class, you may be converted automatically back to your original share class. Although the MainStay Funds expect that a conversion between share classes of the same MainStay Fund should not result in the recognition of a gain or loss for tax purposes, you should consult with your own tax adviser with respect to the tax treatment of your investment in a MainStay Fund. The MainStay Funds may change, suspend or terminate this conversion feature at any time.

Opening Your Account – Individual Shareholders


	How	Details
By wire:	You or your financial adviser should call us toll-free at 800-MAINSTAY (624-6782) to obtain an account number and wiring instructions. Wire the purchase amount to: State Street Bank and Trust Company · ABA #011-0000-28 · MainStay Funds (DDA #99029415) · Attn: Custody and Shareholder Services	Please take note of the applicable minimum initial investment amounts for your Fund and share class. The wire must include: · name(s) of investor(s); · your account number; and · MainStay Fund name and share class. Your bank may charge a fee for the wire transfer. An application must be received by NYLIM Service Company within three business days.
By mail:	Return your completed MainStay Funds Application with a check for the amount of your investment to: MainStay Funds P.O. Box 8401 Boston, MA 02266-8401 Send overnight orders to: MainStay Funds c/o Boston Financial Data Services 30 Dan Road Canton, MA 02021-2809	Make your check payable to MainStay Funds. Please take note of the applicable minimum initial investment amounts for your Fund and share class. Be sure to write on your check: · name(s) of investor(s); and · MainStay Fund name and share class.

Shareholder Guide

Buying additional shares of the MainStay Funds – Individual Shareholders


	How	Details
By wire:	Wire the purchase amount to: State Street Bank and Trust Company · ABA #011-0000-28 · MainStay Funds (DDA #99029415) · Attn: Custody and Shareholder Services	Please take note of the applicable minimum investment amounts for your Fund and share class. The wire must include: · name(s) of investor(s); · your account number; and · MainStay Fund name and share class. Your bank may charge a fee for the wire transfer.
By phone:	Call, or have your financial adviser call us toll-free at 800-MAINSTAY (624-6782) between 8:30 am and 5:30 pm Eastern time any day the Exchange is open to make an ACH purchase.	Eligible investors can purchase shares by using electronic debits from a designated bank account on file. Please take note of the applicable minimum investment amounts for your Fund and share class. · The maximum ACH purchase amount is $100,000. · We must have your bank information on file.

By mail:	Address your order to: MainStay Funds P.O. Box 8401 Boston, MA 02266-8401 Send overnight orders to: MainStay Funds c/o Boston Financial Data Services 30 Dan Road Canton, MA 02021-2809	Make your check payable to MainStay Funds. Please take note of the applicable minimum investment amounts for your Fund and share class. Be sure to write on your check: · name(s) of investor(s); · your account number; and · MainStay Fund name and share class.
By internet:	Visit us at mainstayinvestments.com	Eligible investors can purchase shares via ACH by using electronic debits from a designated bank account on file. Please take note of the applicable minimum investment amounts for your Fund and share class. · The maximum ACH purchase amount is $100,000. · We must have your bank information on file.

Shareholder Guide

Selling Shares – Individual Shareholders


	How	Details
By contacting your financial adviser:		· You may sell (redeem) your shares through your financial adviser or by any of the methods described below.
By phone:	To receive proceeds by check: Call us toll-free at 800-MAINSTAY (624-6782) between 8:30 am and 5:30 pm Eastern time any day the Exchange is open. You should have your account number and social security or taxpayer identification number available.	· Generally, after receiving your sell order by phone, we will send a check to the account owner at the owner's address of record the next business day, although it may take up to seven days to do so. Generally, we will not send checks to addresses on record for 30 days or less. · The maximum order we can process by phone is $100,000.
	To receive proceeds by wire: Call us toll-free at 800-MAINSTAY (624-6782) between 8:30 am and 5:30 pm Eastern time any day the Exchange is open. You should have your account number and social security or taxpayer identification number available. Eligible investors may sell shares and have proceeds electronically credited to their designated bank account on file.	· Generally, after receiving your sell order by phone, we will send the proceeds by bank wire to your bank account on file the next business day, although it may take up to seven days to do so. Your bank may charge you a fee to receive the wire transfer. · We must have your bank account information on file. · There is an $11 fee for wire redemptions, except no fee applies to redemptions of Class I shares or Class P shares. · Generally, the minimum wire transfer amount is $1,000.
	To receive proceeds electronically by ACH: Call us toll-free at 800-MAINSTAY (624-6782) between 8:30 am and 5:30 pm Eastern time any day the Exchange is open. You should have your account number and social security or taxpayer identification number available. Eligible investors may sell shares and have proceeds electronically credited to their designated bank account on file.	· Generally, after receiving your sell order by phone, we will send the proceeds by ACH transfer to your designated bank account on file the next business day, although it may take up to seven days to do so. · We must have your bank account information on file. · After we initiate the ACH transfer, proceeds may take 2-3 business days to reach your bank account. · The MainStay Funds do not charge fees for ACH transfers. · The maximum ACH transfer amount is $100,000.
By mail:	Address your order to: MainStay Funds P.O. Box 8401 Boston, MA 02266-8401 Send overnight orders to: MainStay Funds c/o Boston Financial Data Services 30 Dan Road Canton, MA 02021-2809	Write a letter of instruction that includes: · your name(s) and signature(s); · your account number; · MainStay Fund name and share class; and · dollar amount or share amount you want to sell. A Medallion Signature Guarantee may be required. There is a $15 fee for Class A shares ($25 fee for Investor Class, Class B and Class C shares) for checks mailed to you via overnight service.
By internet:	Visit us at mainstayinvestments.com

Shareholder Guide

GENERAL POLICIES

The following are our general policies regarding the purchase and sale of MainStay Fund shares. The MainStay Funds reserve the right to change these policies at any time. Certain retirement plans and/or financial intermediaries may adopt different policies. Consult your plan or account documents for the policies applicable to you.

Buying Shares

· All investments must be in U.S. dollars with funds drawn on a U.S. bank. We generally will not accept payment in the following forms: travelers checks, personal money orders, credit card convenience checks, cash or starter checks.

· Generally, we do not accept third-party checks, and we reserve the right to limit the number of checks processed at one time.

· MainStay may not allow investments in accounts that do not have a correct address for the investor.

· If your investment check or ACH purchase does not clear, your order will be canceled and your account will be responsible for any losses or fees a MainStay Fund incurs as a result. Your account will also be charged a $20 fee for each returned check or canceled ACH purchase. In addition, a MainStay Fund may also redeem shares to cover any losses it incurs as a result. If an AutoInvest payment is returned unpaid for two consecutive periods, the privilege will be suspended until you notify us to reinstate it.

· A MainStay Fund may, in its discretion, reject, restrict or cancel, in whole or in part, without prior notice, any order for the purchase of shares.

· The MainStay Funds do not issue share certificates at this time.

· To buy shares by wire the same day, we generally must receive your wired money by 4:00 pm Eastern time. Your bank may charge a fee for the wire transfer.

· To buy shares electronically via ACH, generally call before 4:00 pm Eastern time to buy shares at the current day's NAV.

Selling Shares

· If you have share certificates, you must return them with a written redemption request.

· Your shares will be sold at the next NAV calculated after we receive your request in good order. We will make the payment, less any applicable CDSC, within seven days after receiving your request in good order.

· If you buy shares by check or by ACH purchase and quickly decide to sell them, MainStay Funds may withhold payment for up to 10 days from the date the check or ACH purchase order is received.

· When you sell Class B or Class C shares, or Investor Class or Class A shares when applicable, MainStay Funds will recover any applicable sales charges either by selling additional shares, if available, or by reducing your proceeds by the amount of those charges.

· We may suspend the right to redeem shares of any MainStay Fund and may postpone payment for any period:

— during which the Exchange is closed other than customary weekend and holiday closings or during which trading on the Exchange is restricted;

— when the Securities Industry and Financial Markets Association recommends that the bond markets close trading early;

— when the SEC determines that a state of emergency exists that may make payment or transfer not reasonably practicable;

— as the SEC may by order permit for the protection of the security holders of MainStay Funds; or

— at any other time when MainStay Funds may, under applicable laws and regulations, suspend payment on the redemption or repurchase of its shares.

· In addition, in the case of the MainStay Money Market Fund, the Board may suspend redemptions and irrevocably approve the liquidation of the MainStay Money Market Fund as permitted by applicable law.

· Unless you decline telephone privileges on your application, you may be responsible for any fraudulent telephone order as long as the MainStay Funds take reasonable measures to verify the order.

· Reinvestment won't relieve you of any tax consequences on gains realized from a sale. The deductions for losses, however, may be denied.

· We require a written order to sell shares if an account has submitted a change of address during the previous 30 days, unless the proceeds of the sell order are directed to your bank account on file with us.

· We require a written order to sell shares and a Medallion Signature Guarantee if:

— the proceeds from the sale are to be wired and we do not have on file required bank information to wire funds;

— the proceeds from the sale are being sent via wire or ACH to bank information that was added or changed within the past 30 days;

Shareholder Guide

— the proceeds from the sale will exceed $100,000 to the address of record;

— the proceeds of the sale are to be sent to an address other than the address of record;

— the account was designated as a lost shareholder account within 30 days of the redemption request; or

— the proceeds are to be payable to someone other than the registered account holder(s).

· In the interests of all shareholders, we reserve the right to:

— change or discontinue exchange privileges upon notice to shareholders, or temporarily suspend this privilege without notice under extraordinary circumstances;

— change or discontinue the systematic withdrawal plan upon notice to shareholders;

— close accounts with balances less than $250 invested in Investor Class shares or $750 invested in all other classes of shares (by redeeming all shares held and sending proceeds to the address of record); and/or

— change the minimum investment amounts.

· There is no fee for wire redemptions of Class I shares or Class P shares.

· Call before 4:00 pm Eastern time to generally sell shares at the current day's NAV.

· Calls received after 4:00 pm Eastern time will receive the following business day’s NAV.

Additional Information

Wiring money to the MainStay Funds reduces the time a shareholder must wait before redeeming shares. Wired funds are generally available for redemption on the next business day. A 10-day hold may be placed on purchases made by check or ACH payment from the date the purchase is received, making them unavailable for immediate redemption.

You may receive confirmations that describe your transactions. You should review the information in the confirmation statements carefully. If you notice an error, you should call the MainStay Funds or your financial adviser immediately. If you or your financial adviser fails to notify the MainStay Funds within one year of the transaction, you may be required to bear the costs of correction.

The policies and fees described in this Prospectus govern transactions with the MainStay Funds. If you invest through a third party—bank, broker/dealer, 401(k), financial adviser or financial supermarket—there may be transaction fees for, and you may be subject to, different investment minimums or limitations on buying or selling shares. Accordingly, the return to investors who purchase through financial intermediaries may be less than the return earned by investors who invest in a MainStay Fund directly. Consult a representative of your plan or financial institution if in doubt.

From time to time any of the MainStay Funds may close and reopen to new investors or new share purchases at their discretion. Due to the nature of their portfolio investments, certain MainStay Funds may be more likely to close and reopen than others. If a MainStay Fund is closed, either to new investors or new share purchases, and you redeem your total investment in the MainStay Fund, your account will be closed and you will not be able to make any additional investments in that MainStay Fund. If a MainStay Fund is closed to new investors, you may not exchange shares of other MainStay Funds for shares of that MainStay Fund unless you are already a shareholder of such MainStay Fund.

It is important that the MainStay Funds maintain a correct address for each investor. An incorrect address may cause an investor’s account statements and other mailings to be returned to a MainStay Fund. It is the responsibility of an investor to ensure that the MainStay Funds are aware of the correct address for the investor’s account(s). It is important to promptly notify us of any name or address changes.

Mutual fund accounts can be considered abandoned property.

States increasingly are looking at inactive mutual fund accounts as possible abandoned or unclaimed property. Under certain circumstances, the MainStay Funds may be legally obligated to escheat (or transfer) an investor’s account to the appropriate state’s unclaimed property administrator. The MainStay Funds will not be liable to investors or their representatives for good faith compliance with state unclaimed or abandoned property (escheatment) laws. If you invest in a MainStay Fund through a financial intermediary, we encourage you to contact the financial intermediary regarding applicable state escheatment laws.

Escheatment laws vary by state, and states have different criteria for defining inactivity and abandoned property. Generally, a mutual fund account may be subject to “escheatment” (i.e., considered to be abandoned or unclaimed property) if the account owner has not initiated any activity in the account or contacted the MainStay Funds for an “inactivity period” as specified in applicable state laws. If a MainStay Fund is unable to establish contact with an investor, the MainStay Fund will determine whether the investor’s account must legally be considered abandoned and whether the assets in the account must be transferred to the appropriate state’s unclaimed property administrator. Typically, an investor’s last known address of record determines the state that has jurisdiction.

We strongly encourage you to contact us at least once every 2 years, or sooner, to review your account information. Below are ways in which you can assist us in safeguarding your MainStay Fund investments.

Shareholder Guide

· Log in to your account by entering your user ID and Personal ID (PIN) at mainstayinvestments.com to view your account information. Please note, simply visiting our public website may not establish contact with us under state escheatment laws.

· Call our 24-hour automated service line at 800-MAINSTAY (624-6782) and select option 1 for an account balance using your PIN.

· Call one of our customer service representatives at 800-MAINSTAY (624-6782) Monday through Friday from 8:30 am to 5:30 pm Eastern time. Certain state escheatment laws do not consider contact by phone to be customer-initiated activity and such activity may be achieved only by contacting MainStay Funds in writing or through the MainStay Funds’ website.

· Take action on letters received in the mail from MainStay concerning account inactivity, outstanding checks and/or escheatment or abandoned property and follow the directions in these letters. To avoid escheatment, we advise that you promptly respond to any such letters.

The Prospectus and SAI, related regulatory filings, and any other Fund communications or disclosure documents do not purport to create any contractual obligations between the Funds and shareholders. The Funds may amend any of these documents or enter into (or amend) a contract on behalf of the Funds without shareholder approval except where shareholder approval is specifically required. Further, shareholders are not intended third-party beneficiaries of any contracts entered into by (or on behalf of) the Funds, including contracts with New York Life Investments, a Subadvisor, or other parties who provide services to the Funds.

Medallion Signature Guarantees

A Medallion Signature Guarantee helps protect against fraud. To protect your account, each MainStay Fund and the Transfer Agent from fraud, Medallion Signature Guarantees are required to enable us to verify the identity or capacity of the person who has authorized redemption proceeds to be sent to a third party or a bank not previously established on the account. Medallion Signature Guarantees are also required for redemptions of $100,000 or more from an account by check to the address of record and for share transfer requests. Medallion Signature Guarantees must be obtained from certain eligible financial institutions that are participants in the Securities Transfer Association Medallion Program, the Stock Exchange Medallion Program, or the New York Stock Exchange Medallion Signature Program. Eligible guarantor institutions provide Medallion Signature Guarantees that are covered by surety bonds in various amounts. It is your responsibility to ensure that the Medallion Signature Guarantee that you acquire is sufficient to cover the total value of your transaction(s). If the surety bond amount is not sufficient to cover the requested transaction(s), the Medallion Signature Guarantee will be rejected.

Signature guarantees that are not a part of these programs will not be accepted. Please note that a notary public stamp or seal is not acceptable.

Investing for Retirement

You can purchase shares of most, but not all, of the MainStay Funds for retirement plans providing tax-deferred investments for individuals and institutions. You can use MainStay Funds in established plans or the Distributor may provide the required plan documents for selected plans. A plan document must be adopted for a plan to be in existence.

Custodial services are available for IRA, Roth IRA and Coverdell Education Savings Accounts ("CESA") (previously named Education IRA) as well as SEP and SIMPLE IRA plans. Plan administration is also available for select qualified retirement plans. An investor should consult with his or her tax advisor before establishing any tax-deferred retirement plan.

Not all MainStay Funds are available for all types of retirement plans or through all distribution channels. Please contact the MainStay Funds at 800-MAINSTAY (624-6782) and see the SAI for further details.

Purchases-In-Kind

You may purchase shares of a MainStay Fund by transferring securities to a MainStay Fund in exchange for MainStay Fund shares ("in-kind purchase"). In-kind purchases may be made only upon the MainStay Funds' approval and determination that the securities are acceptable investments for the MainStay Fund and are purchased consistent with the MainStay Fund's procedures relating to in-kind purchases. The MainStay Funds reserve the right to amend or terminate this practice at any time. You must call the MainStay Funds at 800-MAINSTAY (624-6782) before sending any securities. Please see the SAI for additional details.

Redemptions-In-Kind

The MainStay Funds reserve the right to pay certain large redemptions, either totally or partially, by a redemption-in-kind of securities (instead of cash) from the applicable MainStay Fund's portfolio, consistent with the MainStay Fund's procedures relating to in-kind redemptions and in accordance with the 1940 Act and rules and interpretations of the SEC thereunder. Please see the SAI for additional details.

The Reinvestment Privilege May Help You Avoid Sales Charges

When you sell shares, you have the right—for 90 days—to reinvest any or all of the money in the same account and class of shares without paying another sales charge (so long as (i) those shares haven't been reinvested once already; (ii) your account is not subject to a 30-day block as described in "Excessive Purchases and Redemptions or Exchanges"; and (iii) you are not reinvesting your required

Shareholder Guide

minimum distribution). If you paid a sales charge when you redeemed, you will receive a pro rata credit for reinvesting in the same account and class of shares.

Reinvestment won't relieve you of any tax consequences on gains realized from a sale. The deductions for losses may, however, be denied and, in some cases, sales charges may not be taken into account in computing gains or losses if the reinvestment privilege is exercised.

Convenient, yes...but not risk-free. Telephone and internet redemption privileges are convenient, but you give up some security. When you sign the application to buy shares, you agree that the MainStay Funds will not be liable for following phone instructions that they reasonably believe are genuine. When using the MainStay Audio Response System or the internet, you bear the risk of any loss from your errors unless we fail to use established safeguards for your protection. The following safeguards are among those currently in place at MainStay Funds:

• all phone calls with service representatives are recorded; and

• written confirmation of every transaction is sent to your address of record.

We reserve the right to suspend the MainStay Audio Response System and internet site at any time or if the systems become inoperable due to technical problems.

MainStay Money Market Fund Check Writing

You can sell shares of the MainStay Money Market Fund by writing checks for an amount that meets or exceeds the pre-set minimum stated on your check. You need to complete special forms to set up check writing privileges. You cannot close your account by writing a check. This option is not available for IRAs, CESAs, 403(b)(7)s or qualified retirement plans.

SHAREHOLDER SERVICES

Automatic Services

Buying or selling shares automatically is easy with the services described below. You select your schedule and amount, subject to certain restrictions. You can set up most of these services on your application, by accessing your shareholder account on the internet at mainstayinvestments.com, by contacting your financial adviser for instructions, or by calling us toll-free at 800-MAINSTAY (624-6782) for a form.

Systematic Investing—Individual Shareholders Only

MainStay offers four automatic investment plans:

1. AutoInvest

If you obtain authorization from your bank, you can automatically debit your designated bank account to:

· make regularly scheduled investments; and/or

· purchase shares whenever you choose.

2. Dividend or Capital Gains Reinvestment

Automatically reinvest dividends, distributions or capital gains from one MainStay Fund into the same MainStay Fund or the same class of any other MainStay Fund. Accounts established with dividend or capital gains reinvestment must meet the initial minimum investment amounts and any other eligibility requirements of the selected share class.

3. Payroll Deductions

If your employer offers this option, you can make automatic investments through payroll deduction.

4. Systematic Exchange

Exchanges must be at least $100. You must have at least $10,000 in your account for Investor Class, Class B and Class C shares at the time of the initial request and shares must not be in certificate form. You may systematically exchange a share or dollar amount from one MainStay Fund into any other MainStay Fund in the same share class. Accounts established with a systematic exchange must meet the initial minimum investment amounts and any other eligibility requirements of the selected share class. Please see "Exchanging Shares Among MainStay Funds" for more information.

Systematic Withdrawal Plan—Individual Shareholders Only

Withdrawals must be at least $100. You must have at least $10,000 in your account for Investor Class, Class B and Class C shares at the time of the initial request and shares must not be in certificate form. The above minimums are waived for IRA and 403(b)(7) accounts where the systematic withdrawal represents required minimum distributions.

Shareholder Guide

NYLIM Service Company acts as the agent for the shareholder in redeeming sufficient full and fractional shares to provide the amount of the systematic withdrawal payment and any CDSC, if applicable.

The MainStay Funds will not knowingly permit systematic withdrawals if, at the same time, you are making periodic investments.

Exchanging Shares Among MainStay Funds

Exchanges will be based upon each MainStay Fund's NAV next determined following receipt of a properly executed exchange request.

You exchange shares when you sell all or a portion of shares in one MainStay Fund and use the proceeds to purchase shares of the same class of another MainStay Fund at NAV. Investment minimums and eligibility requirements apply to exchanges. Please note that certain MainStay Funds have higher investment minimums. An exchange of shares of one MainStay Fund for shares of another MainStay Fund will be treated as a sale of shares of the first MainStay Fund and as a purchase of shares of the second MainStay Fund. Any gain on the transaction may be subject to taxes. You may make exchanges from one MainStay Fund to another by phone. There is also a systematic exchange program that allows you to make regularly scheduled, systematic exchanges from one MainStay Fund to the same class of another MainStay Fund. When you redeem exchanged shares without a corresponding purchase of another MainStay Fund, you may have to pay any applicable contingent deferred sales charge. If you choose to sell Class B or Class C shares and then separately buy Investor Class or Class A shares, you may have to pay a deferred sales charge on the Class B or Class C shares, as well as pay an initial sales charge on the purchase of Investor Class or Class A shares.

You also may exchange shares of a MainStay Fund for shares of an identical class, if offered, of any series of certain other open-end investment companies sponsored, advised or administered by New York Life Investments or any affiliate thereof (provided such series is registered for sale in your state of residence or an exemption from registration is available) some of which are offered in this Prospectus and some of which are offered in separate prospectuses, including:


MainStay Absolute Return Multi-Strategy Fund	MainStay ICAP Select Equity Fund
MainStay Balanced Fund	MainStay Income Builder Fund
MainStay California Tax Free Opportunities Fund*	MainStay Indexed Bond Fund
MainStay Common Stock Fund	MainStay International Equity Fund
MainStay Conservative Allocation Fund	MainStay International Opportunities Fund
MainStay Convertible Fund	MainStay Large Cap Growth Fund
MainStay Cornerstone Growth Fund**	MainStay MAP Fund
MainStay Cushing MLP Premier Fund	MainStay Marketfield Fund
MainStay Cushing Renaissance Advantage Fund	MainStay Moderate Allocation Fund
MainStay Cushing Royalty Energy Income Fund	MainStay Moderate Growth Allocation Fund
MainStay Emerging Markets Opportunities Fund	MainStay Money Market Fund
MainStay Epoch Global Choice Fund	MainStay New York Tax Free Opportunities Fund***
MainStay Epoch Global Equity Yield Fund	MainStay Retirement 2010 Fund
MainStay Epoch International Small Cap Fund	MainStay Retirement 2020 Fund
MainStay Epoch U.S. All Cap Fund	MainStay Retirement 2030 Fund
MainStay Epoch U.S. Equity Yield Fund	MainStay Retirement 2040 Fund
MainStay Epoch U.S. Small Cap Fund	MainStay Retirement 2050 Fund
MainStay Floating Rate Fund	MainStay Retirement 2060 Fund
MainStay Global High Income Fund	MainStay S&P 500 Index Fund
MainStay Government Fund	MainStay Short Duration High Yield Fund
MainStay Growth Allocation Fund	MainStay Tax Advantaged Short Term Bond Fund
MainStay High Yield Corporate Bond Fund	MainStay Tax Free Bond Fund
MainStay High Yield Municipal Bond Fund	MainStay Total Return Bond Fund
MainStay High Yield Opportunities Fund	MainStay Unconstrained Bond Fund
MainStay ICAP Equity Fund	MainStay U.S. Equity Opportunities Fund
MainStay ICAP International Fund

* The Fund is registered for sale in AZ, CA, NV, OR, TX, UT and WA.

** Class B shares are closed to new investors.

*** The Fund is registered for sale in CA, CT, DE, FL, MA, NJ, NY and VT.

You may not exchange shares of one MainStay Fund for shares of another MainStay Fund that is closed to new investors unless you are already a shareholder of that MainStay Fund or are otherwise eligible for purchase. You may not exchange shares of one MainStay Fund for shares of another MainStay Fund that is closed to new share purchases or not offered for sale in your state. Class P shares are only offered by the MainStay Marketfield Fund and, therefore, are not exchangeable for shares of any other MainStay Fund.

Shareholder Guide

Selling and exchanging shares may result in a gain or loss and therefore may be subject to taxes. Consult your tax advisor on the consequences.

Before making an exchange request, read the prospectus of the MainStay Fund you wish to purchase by exchange. You can obtain a prospectus for any MainStay Fund by contacting your broker, financial adviser or other financial intermediary, by visiting mainstayinvestments.com or by calling the MainStay Funds at 800-MAINSTAY (624-6782).

The exchange privilege is not intended as a vehicle for short term trading, nor are the MainStay Funds designed for professional market timing organizations or other entities or individuals that use programmed frequent exchanges in response to market fluctuations. Excessive exchange activity may interfere with portfolio management and have an adverse effect on all shareholders (see "Excessive Purchases and Redemptions or Exchanges").

The MainStay Funds reserve the right to revise or terminate the exchange privilege, limit the amount or number of exchanges or reject any exchange consistent with the requirements of the 1940 Act and rules and interpretations of the SEC thereunder.

In certain circumstances you may have to pay a sales charge.

In addition, if you exchange Class B or Class C shares of a MainStay Fund into Class B or Class C shares of the MainStay Money Market Fund or you exchange Investor Class shares or Class A shares of a MainStay Fund subject to the 1.00% CDSC into Investor Class shares or Class A shares of the MainStay Money Market Fund, the holding period for purposes of determining the CDSC stops until you exchange back into Investor Class, Class A, Class B or Class C shares, as applicable, of another non-money market MainStay Fund. The holding period for purposes of determining conversion of Class B shares into Investor Class or Class A shares also stops until you exchange back into Class B shares of another non-money market MainStay Fund.

Certain clients of NYLIFE Securities LLC who purchased more than $50,000 of Class B shares of the MainStay Funds between January 1, 2003 and June 27, 2007 have the right to convert their Class B shares for Class A shares of the same MainStay Fund at the NAV next computed and without imposition of a contingent deferred sales charge.

Daily Dividend Fund Exchanges

If you exchange all your shares in the MainStay California Tax Free Opportunities Fund, MainStay Floating Rate Fund, MainStay High Yield Municipal Bond Fund, MainStay Money Market Fund, MainStay New York Tax Free Opportunities Fund or MainStay Tax Free Bond Fund for shares of the same class in another MainStay Fund, any dividends that have been declared but not yet distributed will be credited to the new MainStay Fund account. If you exchange all your shares in the MainStay California Tax Free Opportunities Fund, MainStay Floating Rate Fund, MainStay High Yield Municipal Bond Fund, MainStay Money Market Fund, MainStay New York Tax Free Opportunities Fund or MainStay Tax Free Bond Fund for shares in more than one MainStay Fund, undistributed dividends will be credited to the last MainStay Fund account that you exchange to.

We try to make investing easy by offering a variety of programs to buy, sell and exchange MainStay Fund shares. These programs make it convenient to add to your investment and easy to access your money when you need it.

Excessive Purchases and Redemptions or Exchanges

The MainStay Funds are not intended to be used as a vehicle for frequent, excessive or short-term trading (such as market timing). The interests of a MainStay Fund's shareholders and the MainStay Fund's ability to manage its investments may be adversely affected by excessive purchases and redemptions or exchanges of MainStay Fund shares over the short term. When large dollar amounts are involved, excessive trading may disrupt efficient implementation of a MainStay Fund's investment strategies or negatively impact MainStay Fund performance. For example, the Manager or a MainStay Fund's subadvisor might have to maintain more of a MainStay Fund's assets in cash or sell portfolio securities at inopportune times to meet unanticipated redemptions. By realizing profits through short-term trading, shareholders that engage in excessive purchases and redemptions or exchanges of MainStay Fund shares may dilute the value of shares held by long-term shareholders. MainStay Funds investing in securities that are thinly traded, trade infrequently or are relatively illiquid (such as foreign securities, high-yield securities and small-cap securities) may attract investors seeking to profit from short-term trading strategies that exploit the special valuation issues applicable to these types of holdings to a greater degree than other types of funds, and thus, may be more vulnerable to the risks associated with such activity. For MainStay Funds that invest in foreign investments, securities may be listed on foreign exchanges that trade on days when the MainStay Fund does not calculate NAV, and as a result the market value of the MainStay Fund's investments may change on days when you cannot purchase or redeem MainStay Fund shares. Furthermore, foreign securities traded on foreign exchanges present time zone arbitrage opportunities when events affecting portfolio securities values occur after the close of the foreign exchanges but prior to the close of the Exchange. Accordingly, the Board has adopted and implemented policies and procedures designed to discourage, detect and prevent frequent purchases and redemptions or exchanges of MainStay Fund shares in order to protect long-term MainStay Fund shareholders. These policies are discussed more fully below. There is the risk that the MainStay Funds' policies and procedures will prove ineffective in whole or in part to detect or

Shareholder Guide

prevent excessive or short-term trading. A MainStay Fund may change its policies or procedures at any time without prior notice to shareholders.

The MainStay Funds reserve the right to restrict, reject or cancel, without prior notice, any purchase or exchange order for any reason, including any purchase or exchange order accepted by any investor's financial intermediary firm. Any such rejection or cancellation of an order placed through a financial intermediary will occur, under normal circumstances, within one business day of the financial intermediary transmitting the order to the MainStay Funds. If an order is cancelled due to a violation of this policy, and such cancellation causes a monetary loss to a MainStay Fund, such loss may become the responsibility of the party that placed the transaction or the account owner. In addition, the MainStay Funds reserve the right to reject, limit, or impose other conditions (that are more restrictive than those otherwise stated in the Prospectuses) on purchases or exchanges or to close or otherwise limit accounts based on a history of frequent purchases and redemptions of MainStay Fund shares that could adversely affect a MainStay Fund or its operations, including those from any individual or group who, in the MainStay Funds' judgment, is likely to harm MainStay Fund shareholders. Pursuant to the MainStay Funds' policies and procedures, a MainStay Fund may permit short-term purchases or exchanges that it believes, in the exercise of its judgment, are not disruptive or harmful to the MainStay Fund's long-term shareholders. For example, transactions conducted through systematic investment or withdrawal plans and trades within the MainStay Money Market Fund are not subject to the surveillance procedures. Other exceptions are subject to the advance approval by the MainStay Funds' Chief Compliance Officer and/or New York Life Investments’ Chief Executive Officer, among others, and are subject to Board oversight. Apart from trading permitted or exceptions granted in accordance with the MainStay Funds' policies and procedures, no MainStay Fund accommodates, nor has any arrangement to permit, frequent purchases and redemptions of MainStay Fund shares.

The MainStay Funds, through New York Life Investments, the Transfer Agent and the Distributor, maintain surveillance procedures to detect excessive or short-term trading in MainStay Fund shares. As part of this surveillance process, the MainStay Funds examine transactions in MainStay Fund shares that exceed certain monetary thresholds or numerical limits within a specified period of time. The MainStay Funds also may consider the history of trading activity in all accounts known to be under common ownership, control or influence. To the extent identified under these surveillance procedures, a MainStay Fund may place a 30-day "block" on any account if, during any 30-day period, there is (1) a purchase or exchange into the account following a redemption or exchange from such account or (2) a redemption or exchange from the account following a purchase or exchange into such account. An account that is blocked will not be permitted to place future purchase or exchange requests for at least an additional 30-day period in that MainStay Fund. The MainStay Funds may modify their surveillance procedures and criteria from time to time without prior notice, as necessary or appropriate to improve the detection of excessive or short-term trading or to address specific circumstances. In certain instances when deemed appropriate, the MainStay Funds will rely on a financial intermediary to apply the intermediary’s market timing procedures to an omnibus account. In certain cases, these procedures will be less restrictive than the MainStay Funds' procedures. Routine allocation and rebalancing activities made by certain asset allocation programs, funds-of-funds, or other collective investment strategies may not be subject to the surveillance procedures if the manager of such strategies represents to the satisfaction of the MainStay Funds' Chief Compliance Officer that such investment programs and strategies are consistent with the MainStay Funds' objective of avoiding disruption due to market timing.

In addition to these measures, the MainStay Funds may from time to time impose a redemption fee on redemptions or exchanges of MainStay Fund shares made within a certain period of time in order to deter excessive or short-term trading and to offset certain costs associated with such trading.

While the MainStay Funds discourage excessive or short-term trading, there is no assurance that the MainStay Funds or their procedures will be able to effectively detect such activity or participants engaging in such activity, or, if it is detected, to prevent its recurrence. The MainStay Funds' ability to reasonably detect all such trading may be limited, for example, where the MainStay Funds must rely on the cooperation of and/or information provided by financial intermediaries or retirement plans or where the costs of surveillance on certain trading exceeds the anticipated benefit of such surveillance to MainStay Fund shareholders.

FAIR VALUATION AND PORTFOLIO HOLDINGS DISCLOSURE

Determining the MainStay Funds' Share Prices and the Valuation of Securities

Each MainStay Fund generally calculates its NAV at the Fund’s close (usually 4:00 pm Eastern time) every day the Exchange is open. The MainStay Funds do not calculate their NAVs on days on which the Exchange is closed. The NAV per share for a class of shares is determined by dividing the value of the net assets attributable to that class by the number of shares of that class outstanding on that day.

The value of a MainStay Fund's investments is generally based (in whole or in part) on current market prices (amortized cost, in the case of the MainStay Money Market Fund and other MainStay Funds that hold debt securities with a remaining maturity of 60 days or less). If current market values of the MainStay Funds' investments are not available or, in the judgment of New York Life Investments, do not accurately reflect the fair value of a security, the security will be valued by another method that the Board believes in good faith accurately reflects its fair value. Changes in the value of a MainStay Fund's portfolio securities after the close of trading on the principal markets in which the portfolio securities trade will not be reflected in the calculation of NAV unless New York Life Investments, in

Shareholder Guide

consultation with the subadvisor (if applicable), deems a particular event could materially affect the NAV. In this case, an adjustment in the valuation of the securities may be made in accordance with procedures adopted by the Board. A MainStay Fund may invest in portfolio securities that are primarily listed on foreign exchanges that trade on weekends or other days when the MainStay Fund does not price its shares. Consequently, the value of portfolio securities of a MainStay Fund may change on days when shareholders will not be able to purchase or redeem shares.

With respect to any portion of a MainStay Fund's assets invested in one or more Underlying Funds, the MainStay Fund's NAV is calculated based upon the NAVs of those Underlying Funds.

The Board has adopted valuation procedures establishing methodologies for the valuation of the MainStay Funds’ portfolio securities and has delegated day-to-day responsibility for fair value determinations to the MainStay Funds' Valuation Committee and Valuation Subcommittee. Determinations of these Committees are subject to review and ratification, if appropriate, by the Board at its next regularly scheduled meeting after the fair valuations are determined. Fair value determinations may be based upon developments related to a specific security or events affecting securities markets. Fair valuation involves subjective judgments, and it is possible that the fair value determined for a security may differ materially from the value that could be realized upon the sale of the security.

The MainStay Funds expect to use fair value pricing for securities actively traded on U.S. exchanges only under very limited circumstances. The MainStay Funds may use fair value pricing more frequently for foreign securities. Where foreign securities markets close earlier than U.S. markets, the value of the securities may be affected by significant events or volatility in the U.S. markets occurring after the close of those foreign securities markets. To account for this, certain MainStay Funds, notably the MainStay International/Global Equity Funds, have fair valuation procedures which include a procedure whereby foreign securities may be valued based on third-party vendor modeling tools to the extent available.

There may be other instances where market quotations are not readily available or standard pricing principles do not apply. Please see the SAI for additional information on how NAV is calculated.

Portfolio Holdings Information

A description of the MainStay Funds' policies and procedures with respect to the disclosure of each of the MainStay Funds' portfolio securities holdings is available in the SAI. Generally, a complete schedule of each of the MainStay Funds' portfolio holdings will be made public on the MainStay Funds' website at mainstayinvestments.com no earlier than 30 days after month-end, except as noted below. You may also obtain this information by calling toll-free 800-MAINSTAY (624-6782).

MainStay Money Market Fund will post on the MainStay Funds' website its complete schedule of portfolio holdings as of the last business day of the prior month, no later than the fifth business day following month-end. MainStay Money Market Fund's postings will remain on the MainStay Funds' website for a period of at least six months after posting. Also, in the case of the MainStay Money Market Fund, certain portfolio information will be provided in monthly holdings reports to the SEC on Form N-MFP. Form N-MFP will be made available to the public by the SEC, and a link to each of the most recent 12 months of filings on Form N-MFP will be provided on the MainStay Funds' website.

The portfolio holdings for MainStay Cushing Funds, MainStay High Yield Corporate Bond Fund and MainStay Short Duration High Yield Fund will be made available on the last day of each calendar quarter, no earlier than 60 days after the end of the reported quarter. Such disclosure will remain accessible on the website until the posting of the following quarter-end information.

The portfolio holdings for MainStay ICAP Equity Fund, MainStay ICAP International Fund and MainStay ICAP Select Equity Fund will be made available as of the last day of each calendar month no earlier than 15 days after the end of the reported month. Such disclosure will remain accessible on the website until the posting of the following month-end information.

The portfolio holdings for MainStay Municipal/Tax Advantaged Bond Funds will be made available no earlier than 60 days after month-end. Such disclosure will remain accessible on the website until the posting of the following month’s schedule.

The portfolio holdings for MainStay Marketfield Fund will be made available quarterly, 45 days after quarter-end. Such disclosure will remain accessible on the website until the posting of the following quarter-end information.

In addition, with the exception of MainStay Marketfield Fund and MainStay Tax Free Bond Fund, each MainStay Fund's ten largest holdings, as reported on a quarter-end basis, will be made public no earlier than 15 days after the end of each calendar quarter. MainStay Marketfield Fund's ten largest holdings will be posted monthly, no earlier than 15 days after month-end. MainStay Tax Free Bond Fund’s ten largest holdings will be posted 10 days after month-end. If the scheduled release date for portfolio holdings falls on a weekend or other non-business day, the portfolio holdings will be posted on the following business day.

Shareholder Guide

FUND EARNINGS

Dividends and Interest

Most funds earn either dividends from stocks, interest from bonds and other securities, or both. A mutual fund, however, always pays this income to you as "dividends." The dividends paid by each MainStay Fund will vary based on the income from its investments and the expenses incurred by the MainStay Fund.

We reserve the right to automatically reinvest dividend distributions of less than $10.00.

Dividends and Distributions

Each MainStay Fund intends to distribute substantially all of its net investment income and capital gains to shareholders at least once a year to the extent that dividends and/or capital gains are available for distribution. The MainStay Funds declare and pay dividends as set forth below:

Dividends from the net investment income (if any) of the following MainStay Funds are declared and paid at least annually:

MainStay Absolute Return Multi-Strategy Fund, MainStay Common Stock Fund, MainStay Cornerstone Growth Fund, MainStay Emerging Markets Opportunities Fund, MainStay Epoch Global Choice Fund, MainStay Epoch International Small Cap Fund, MainStay Epoch U.S. All Cap Fund, MainStay Epoch U.S. Small Cap Fund, MainStay Growth Allocation Fund, MainStay ICAP International Fund, MainStay International Equity Fund, MainStay International Opportunities Fund, MainStay Large Cap Growth Fund, MainStay MAP Fund, MainStay Marketfield Fund, MainStay Moderate Allocation Fund, MainStay Moderate Growth Allocation Fund, MainStay Retirement 2010 Fund, MainStay Retirement 2020 Fund, MainStay Retirement 2030 Fund, MainStay Retirement 2040 Fund, MainStay Retirement 2050 Fund, MainStay Retirement 2060 Fund, MainStay S&P 500 Index Fund and MainStay U.S. Equity Opportunities Fund

Dividends from the net investment income (if any) of the following MainStay Funds are declared and paid at least quarterly:

MainStay Balanced Fund, MainStay Convertible Fund, MainStay Conservative Allocation Fund, MainStay Cushing MLP Premier Fund, MainStay Cushing Renaissance Advantage Fund, MainStay Cushing Royalty Energy Income Fund, MainStay Epoch Global Equity Yield Fund, MainStay Epoch U.S. Equity Yield Fund, MainStay ICAP Equity Fund, MainStay ICAP Select Equity Fund and MainStay Income Builder Fund

Dividends from the net investment income (if any) of the following MainStay Funds are declared and paid at least monthly:

MainStay Global High Income Fund, MainStay Government Fund, MainStay High Yield Corporate Bond Fund, MainStay High Yield Opportunities Fund, MainStay Indexed Bond Fund, MainStay Short Duration High Yield Fund, MainStay Tax Advantaged Short Term Bond Fund, MainStay Total Return Bond Fund and MainStay Unconstrained Bond Fund

Dividends from the net investment income (if any) of the following MainStay Funds are declared daily and paid at least monthly:

MainStay California Tax Free Opportunities Fund, MainStay Floating Rate Fund, MainStay High Yield Municipal Bond Fund, MainStay Money Market Fund, MainStay New York Tax Free Opportunities Fund and MainStay Tax Free Bond Fund

Dividends are generally paid during the last week of the month after a dividend is declared, except in December when they may be paid earlier in the month.

You generally begin earning dividends the next business day after the MainStay Funds receives your purchase request in good order.

Buy after the dividend payment. Avoid buying shares shortly before a dividend payment. Part of your investment may be returned in the form of a dividend, which may be taxable.

Capital Gains

The MainStay Funds earn capital gains when they sell securities at a profit.

When the Funds Pay Capital Gains

The MainStay Funds (other than the MainStay Cushing MLP Premier Fund and MainStay Cushing Royalty Energy Income Fund) will normally declare and distribute any capital gains to shareholders annually, typically in December.

How to Take Your Earnings

You may receive your portion of MainStay Fund earnings in one of seven ways. You can make your choice at the time of application, and change it as often as you like by notifying your financial adviser (if permitted) or the MainStay Funds directly. The seven choices are:

1. Reinvest dividends and capital gains in:

· the same MainStay Fund; or

· another MainStay Fund of your choice (other than a MainStay Fund that is closed, either to new investors or to new share purchases).

2. Take the dividends in cash and reinvest the capital gains in the same MainStay Fund.

3. Take the capital gains in cash and reinvest the dividends in the same MainStay Fund.

4. Take a percentage of dividends or capital gains in cash and reinvest the remainder in the same MainStay Fund.

5. Take dividends and capital gains in cash.

Shareholder Guide

6. Reinvest all or a percentage of the capital gains in another MainStay Fund (other than a MainStay Fund that is closed, either to new investors or to new share purchases) and reinvest the dividends in the original MainStay Fund.

7. Reinvest all or a percentage of the dividends in another MainStay Fund (other than a MainStay Fund that is closed, either to new investors or to new share purchases) and reinvest the capital gains in the original MainStay Fund.

If you do not make one of these choices on your application, your earnings will be automatically reinvested in the same class of shares of the same MainStay Fund.

If you prefer to reinvest dividends and/or capital gains in another MainStay Fund, you must first establish an account in that class of shares of the MainStay Fund. There is no sales charge on shares purchased through the automatic reinvestment of dividends or capital gains.

UNDERSTAND THE TAX CONSEQUENCES

MainStay Absolute Return Multi-Strategy Fund, MainStay Cushing Renaissance Advantage Fund, MainStay International/ Global Equity Funds, MainStay Mixed Asset Funds, MainStay Money Market Fund, MainStay Taxable Bond Funds and MainStay U.S. Equity Funds

Distributions received by tax-exempt shareholders will not be subject to federal income tax to the extent permitted under applicable law. If you are not a tax-exempt shareholder virtually all of the dividends and capital gains distributions you receive from the MainStay Funds are taxable, whether you take them as cash or automatically reinvest them. A MainStay Fund's realized capital gains are taxed based on the length of time a MainStay Fund holds its investments, regardless of how long you hold MainStay Fund shares. Generally, if a MainStay Fund realizes long-term capital gains, the capital gains distributions are taxed as long-term capital gains; earnings realized from short-term capital gains and income generated on debt investments, dividend income and other sources are generally taxed as ordinary income upon distribution.

For individual shareholders, a portion of the dividends received from the MainStay Funds may be treated as "qualified dividend income," which is taxable to individuals at preferential rates, to the extent that such MainStay Funds receive qualified dividend income from domestic corporations and certain qualified foreign corporations and that certain holding period and other requirements are met. The shareholder must also generally satisfy a more than 60-day holding period requirement with respect to each distribution of qualified dividends in order to qualify for the preferential rates on such distributions. For certain corporate shareholders, a portion of the dividends received from the MainStay Funds may qualify for the corporate dividends received deductions if certain conditions are met. The maximum individual rate applicable to qualified dividend income and long-term capital gains is either 15% or 20%, depending on whether the individual’s income exceeds certain threshold amounts.

MainStay Municipal/Tax Advantaged Bond Funds

The MainStay Municipal/Tax Advantaged Bond Funds’ distributions to shareholders are generally expected to be exempt from federal income taxes, and in the case of MainStay California Tax Free Opportunities Fund and MainStay New York Tax Free Opportunities Fund, California and New York personal income taxes, respectively. A portion of the distributions may be subject to the alternative minimum tax. In addition, these MainStay Funds may also derive taxable income and/or capital gains. Distributions to shareholders of any such taxable income or capital gains would generally be taxable whether you take them as cash or automatically reinvest them. These MainStay Funds' realized earnings, if any, from capital gains are taxed based on the length of time such MainStay Fund holds investments, regardless of how long you hold MainStay Fund shares. If any of the MainStay Municipal/Tax Advantaged Bond Funds realize long-term capital gains, the earnings distributions are taxed as long-term capital gains; earnings from short-term capital gains and taxable income generated on debt investments and other sources are generally taxed as ordinary income upon distribution. Interest on indebtedness incurred or continued by a shareholder of a MainStay Municipal/Tax Advantaged Bond Fund to purchase or carry shares of such a Fund is not deductible to the extent it is deemed related to the Fund’s distributions of tax-exempt interest.

"Tax-Free" Rarely Means "Totally Tax-Free"

· A tax-free fund or municipal bond fund may earn taxable income—in other words, you may have taxable income even from a generally tax-free fund.

· Tax-exempt dividends may still be subject to state and local taxes.

· Any time you sell shares—even shares of a tax-free fund—you will be subject to tax on any gain (the rise in the share price above the price at which you purchased the shares).

· If you sell shares of a tax-free fund at a loss after receiving a tax-exempt dividend, and you have held the shares for six months or less, then you may not be allowed to claim a loss on the sale.

· Some tax-exempt income may be subject to the alternative minimum tax.

· Capital gains declared in a tax-free fund are not tax-free.

Shareholder Guide

· Acquisitions of municipal securities at a market discount may also result in ordinary income.

MainStay California Tax Free Opportunities Fund

So long as, at the close of each quarter of the MainStay California Tax Free Opportunities Fund’s taxable year, at least 50% of the value of the MainStay California Tax Free Opportunities Fund’s assets consists of California municipal bonds, exempt-interest dividends not exceeding the interest received on such California municipal bonds will be treated as interest excludable from the income of California residents for purposes of the California personal income tax. Exempt-interest dividends paid to a shareholder subject to the California corporate franchise tax will be taxable as ordinary income for purposes of such tax. Interest income from other investments may produce taxable dividend distributions. If you are subject to income tax in a state other than California, the dividends derived from interest on California municipal bonds may, depending on the treatment of out-of-state municipal bonds by that state, not be exempt from tax in that state. Distributions of taxable income and capital gains will be taxed at ordinary income tax rates for California state income tax purposes. Interest on indebtedness incurred or continued by a shareholder of the MainStay California Tax Free Opportunities Fund to purchase or carry shares of the MainStay California Tax Free Opportunities Fund generally will not be deductible for California personal income tax purposes.

MainStay New York Tax Free Opportunities Fund

MainStay New York Tax Free Opportunities Fund seeks to comply with certain state tax requirements so that individual shareholders of MainStay New York Tax Free Opportunities Fund that are residents of New York State will not be subject to New York State income tax on distributions that are derived from interest on obligations exempt from taxation by New York State. To meet those requirements, MainStay New York Tax Free Opportunities Fund will invest in New York State or municipal bonds. Individual shareholders of MainStay New York Tax Free Opportunities Fund who are residents of New York City will also be able to exclude such income for New York City personal income tax purposes. Dividends from MainStay New York Tax Free Opportunities Fund may be subject to New York State and New York City taxes imposed on corporations when distributed to shareholders subject to those taxes.

MainStay Tax Advantaged Short Term Bond Fund

MainStay Tax Advantaged Short Term Bond Fund will normally invest at least 80% of its assets (net assets plus any borrowings for investment purposes) in an actively managed diversified portfolio of tax-exempt and taxable debt securities, including securities with special features (e.g. puts and variable or floating rates) which have price volatility characteristics similar to debt securities. At least 50% of the Fund’s total assets must be invested in tax-exempt municipal securities as of the end of each fiscal quarter in order for the Fund to be able to distribute exempt-interest dividends from its net tax-exempt income. Although the Fund normally will seek to qualify to pay exempt-interest dividends from its net tax-exempt income there is no guarantee that the Fund will achieve such result. Distributions of net income from taxable bonds would be taxable as ordinary income. All distributions by the Fund, including any distributions of exempt-interest dividends, may be includible in taxable income for purposes of the federal alternative minimum tax.

MainStay Asset Allocation Funds and MainStay Target Date Funds

Distributions received by tax-exempt shareholders will not be subject to federal income tax to the extent permitted under applicable tax law. If you are not a tax-exempt shareholder, virtually all of the dividends and capital gains distributions you receive from the MainStay Asset Allocation and MainStay Target Date Funds are taxable, whether you take them as cash or automatically reinvest them. These MainStay Funds can have income, gains or losses from any distributions or redemptions in the Underlying Funds. Distributions of the long-term capital gains of either the MainStay Asset Allocation, MainStay Target Date Funds or Underlying Funds will generally be taxed as long-term capital gains. The maximum individual rate applicable to long-term capital gains is either 15% or 20%, depending on whether the individual’s income exceeds certain threshold amounts. Other distributions, including short-term capital gains, will be taxed as ordinary income. The structure of these MainStay Funds and the reallocation of investments among Underlying Funds could affect the amount, timing and character of distributions.

For individual shareholders, a portion of the dividends received from the MainStay Asset Allocation Funds and MainStay Target Date Funds may be treated as "qualified dividend income," which is currently taxable to individuals at preferential rates, to the extent that the Underlying Funds receive qualified dividend income from domestic corporations and certain qualified foreign corporations and that certain holding periods and other requirements are met. The shareholder must also satisfy a more than 60-day holding period requirement with respect to each distribution of qualified dividends in order to qualify for the preferential rates on such distributions. For corporate shareholders, a portion of the dividends received from these MainStay Funds may qualify for the corporate dividends received deduction. The maximum individual rate applicable to “qualified dividend income” is either 15% or 20%, depending on whether the individual’s income exceeds certain threshold amounts.

MainStay Cushing MLP Premier Fund and MainStay Cushing Royalty Energy Income Fund

Each of MainStay Cushing MLP Premier Fund (the “MLP Premier Fund”) and MainStay Cushing Royalty Energy Income Fund (the “Royalty Energy Income Fund”) (each an “MLP Fund” and collectively the “MLP Funds”) is treated as a regular corporation, or “C” corporation, for U.S. federal income tax purposes. Accordingly, each MLP Fund is subject to U.S. federal income tax on its taxable income at the graduated rates applicable to corporations (currently a maximum rate of 35%). In addition, as a regular corporation, each MLP Fund is subject to state and local income taxes by reason of its investments in equity securities of MLPs and/or U.S. royalty trusts. Therefore, each MLP Fund may have state and local income tax liabilities in multiple states, which will reduce the MLP Funds’ cash available to

Shareholder Guide

make distributions on the shares. Each MLP Fund may be subject to a 20% alternative minimum tax on its respective alternative minimum taxable income to the extent that the alternative minimum tax exceeds the MLP Fund’s regular income tax liability. The MLP Funds make certain estimates in determining their taxable income allocable to various states and localities. Such estimates may ultimately differ from state or local taxable income, as finally determined, which could result in the imposition of additional taxes as well as interest and/or penalties on the MLP Funds. The extent to which an MLP Fund is required to pay U.S. corporate income tax or alternative minimum tax could materially reduce the MLP Fund’s cash available to make distributions.

Each MLP Fund invests a portion of its assets, and in the case of MLP Premier Fund – a significant portion of its assets, in MLPs, which are generally treated as partnerships for U.S. federal income tax purposes. To the extent that an MLP Fund invests in the equity securities of an MLP, the MLP Fund will be a partner in such MLP. Accordingly, the MLP Fund will be required to include in its taxable income the MLP Fund’s allocable share of the income, gains, losses, deductions and expenses recognized by each such MLP, regardless of whether the MLP distributes cash to the MLP Fund. Based upon a review of the historic results of the type of MLPs in which an MLP Fund intends to invest, the MLP Funds expect that the cash distributions they will receive with respect to an investment in equity securities of MLPs will exceed the taxable income allocated to that MLP Fund from such MLPs. No assurance, however, can be given in this regard. If this expectation is not realized, an MLP Fund will have a larger corporate income tax expense than expected, which will result in less cash available for distribution to its shareholders.

Each MLP Fund will recognize a gain or loss on the sale, exchange or other taxable disposition of an equity security of an MLP equal to the difference between the amount realized by the MLP Fund on the sale, exchange or other taxable disposition and the MLP Fund’s adjusted tax basis in such equity security. Any such gain will be subject to U.S. federal income tax at the regular graduated corporate rates (currently at a maximum rate of 35%), regardless of how long the MLP Fund has held such equity security. The amount realized by an MLP Fund generally will be the amount paid by the purchaser of the equity security plus the MLP Fund’s allocable share, if any, of the MLP’s debt that will be allocated to the purchaser as a result of the sale, exchange or other taxable disposition. An MLP Fund’s tax basis in its equity securities in an MLP is generally equal to the amount the MLP Fund paid for the equity securities, (a) increased by the MLP Fund’s allocable share of the MLP’s net taxable income and certain MLP nonrecourse debt, if any, and (b) decreased by the MLP Fund’s allocable share of the MLP’s net losses, any decrease in the amount of MLP nonrecourse debt allocated to the MLP Fund, and any distributions received by the MLP Fund from the MLP. Although any distribution by an MLP to an MLP Fund in excess of the MLP Fund’s allocable share of such MLP’s net taxable income may create a temporary economic benefit to the MLP Fund, such distribution will decrease the MLP Fund’s tax basis in the MLP equity security and, as a result, increase the amount of gain (or decrease the amount of loss) that will be recognized on the sale of the equity security in the MLP by the MLP Fund. If an MLP Fund is required to sell equity securities in the MLPs to meet redemption requests, the MLP Fund likely will recognize ordinary income and/or gain for U.S. federal income tax purposes, which will result in corporate income taxes imposed on the MLP Fund and decrease cash available for distribution to shareholders. To the extent that an MLP Fund has a net capital loss in any tax year, the net capital loss can be carried back three years and forward five years to reduce the MLP Fund’s current capital gains, subject to certain limitations. In the event a capital loss carryover cannot be utilized in the carryover periods, an MLP Fund’s U.S. federal income tax liability may be higher than expected, which will result in less cash available to distribute to its shareholders.

The Royalty Energy Income Fund also invests in U.S. royalty trusts. U.S. royalty trusts are generally not subject to U.S. federal corporate income taxation at the trust or entity level. Instead, each unitholder of the U.S. royalty trust is required to take into account its share of all items of the U.S. royalty trust’s income, gain, loss, deduction and expense. It is possible that Royalty Energy Income Fund’s share of taxable income from a U.S. royalty trust may exceed the cash actually distributed to it from the U.S. royalty trust in a given year. In such a case, the Royalty Energy Income Fund will have less after-tax cash available for distribution to shareholders.

Each MLP Fund’s allocable share of certain depreciation, percentage depletion deductions and intangible drilling costs of the MLPs and/or U.S. royalty trusts in which the MLP Fund invests may be treated as items of tax preference for purposes of calculating the MLP Fund’s alternative minimum taxable income. Such items will increase the MLP Fund’s alternative minimum taxable income and increase the likelihood that the MLP Fund may be subject to the alternative minimum tax.

The MLP Funds are not treated and will not be eligible to elect to be treated, as a regulated investment company under the Internal Revenue Code because a regulated investment company cannot invest more than 25% of its assets in certain types of publicly traded partnerships.

Certain of the MLP Funds’ investment practices are subject to special and complex U.S. federal income tax provisions that may, among other things, (i) disallow, suspend or otherwise limit the allowance of certain losses or deductions, (ii) convert an ordinary loss or a deduction into a capital loss (the deductibility of which is more limited), (iii) cause an MLP Fund to recognize income or gain without a corresponding receipt of cash, (iv) adversely affect the time as to when a purchase or sale of stock or securities is deemed to occur, and (v) adversely alter the characterization of certain complex financial transactions.

U.S. Shareholders. For purposes of this summary, the term “U.S. Shareholder” means a beneficial owner of shares of the MLP Funds that, for U.S. federal income tax purposes, is one of the following:

· an individual who is a citizen or resident of the United States;

Shareholder Guide

· a corporation or other entity taxable as a corporation created in or organized under the laws of the United States, any state thereof or the District of Columbia;

· an estate the income of which is subject to U.S. federal income taxation regardless of its source; or

· a trust (a) if a U.S. court is able to exercise primary supervision over the administration of such trust and one or more U.S. persons have the authority to control all substantial decisions of such trust or (b) that has a valid election in effect under applicable U.S. Treasury regulations to be treated as a U.S. person.

If a partnership (including any other entity or arrangement treated as a partnership for U.S. federal income tax purposes) holds shares, the U.S. federal income tax treatment of a partner in such partnership generally will depend upon the status of the partner and the activities of the partnership. Partners of partnerships that hold shares should consult their tax advisors.

Distributions. Distributions by an MLP Fund of cash or property in respect of the shares of the MLP Fund will be treated as dividends for U.S. federal income tax purposes to the extent paid from the MLP Fund’s current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Any such dividend will be eligible for the dividends received deduction if received by an otherwise qualifying corporate U.S. Shareholder that meets the holding period and other requirements for the dividends received deduction. Dividends paid by an MLP Fund to certain non-corporate U.S. Shareholders (including individuals) are eligible for U.S. federal income taxation at the rates generally applicable to long-term capital gains for individuals provided that the U.S. Shareholder receiving the dividend satisfies applicable holding period and other requirements.

If the amount of a distribution by an MLP Fund exceeds the MLP Fund’s current and accumulated earnings and profits, such excess will be treated first as a tax-free return of capital to the extent of the U.S. Shareholder’s tax basis in the shares of the MLP Fund, and thereafter as capital gain. Any such capital gain will be long-term capital gain if such U.S. Shareholder has held the applicable shares of the MLP Fund for more than one year. A distribution will be wholly or partially taxable to a shareholder if the MLP Fund has current earnings and profits (as determined for U.S. federal income tax purposes) in the taxable year of the distribution, even if the MLP Fund has an overall deficit in the MLP Fund’s accumulated earnings and profits and/or net operating loss or capital loss carryforwards that reduce or eliminate corporate income taxes in that taxable year.

Each MLP Fund’s earnings and profits are generally calculated by making certain adjustments to the MLP Fund’s taxable income. Based upon an MLP Fund’s review of the historic results of the type of MLPs in which the MLP Fund intends to invest, each MLP Fund expects that the cash distributions it will receive with respect to its investments in equity securities of MLPs will exceed the MLP Fund’s current and accumulated earnings and profits. Accordingly, each MLP Fund expects that only a portion of its distributions to its shareholders with respect to the shares of the MLP Fund will be treated as dividends for U.S. federal income tax purposes. No assurance, however, can be given in this regard.

Because the MLP Funds will invest a substantial portion of their respective assets in MLPs, special rules will apply to the calculation of the MLP Funds’ earnings and profits. For example, the MLP Funds’ earnings and profits may be subject to certain adjustments applicable to energy-related MLPs, such as adjustments for percentage depletion or intangible drilling costs, and will be calculated using the straight-line depreciation method rather than the accelerated depreciation method. This difference in treatment may, for example, result in an MLP Fund’s earnings and profits being higher than the MLP Fund’s taxable income in a particular year if the MLPs in which the MLP Fund invests calculate their income using accelerated depreciation. In addition, loss carryovers from prior years may reduce taxable income but will not reduce current earnings and profits. Because of these differences, the MLP Fund may make distributions in a particular year out of earnings and profits (treated as dividends) in excess of the amount of the MLP Fund’s taxable income for such year.

U.S. Shareholders that participate in the MLP Funds’ dividend reinvestment plan will be treated for U.S. federal income tax purposes as having (i) received a cash distribution equal to the reinvested amount and (ii) reinvested such amount in shares of the applicable MLP Fund.

Sales of Shares of the MLP Funds. Upon the sale, exchange or other taxable disposition of shares of an MLP Fund, a U.S. Shareholder generally will recognize capital gain or loss equal to the difference between the amount realized on the sale, exchange or other taxable disposition and the U.S. Shareholder’s adjusted tax basis in the shares of the MLP Fund. Any such capital gain or loss will be a long-term capital gain or loss if the U.S. Shareholder has held the shares of the MLP Fund for more than one year at the time of disposition. Long-term capital gains of certain non-corporate U.S. Shareholders (including most individuals) are currently subject to U.S. federal income taxation at a maximum rate of either 15% or 20% (depending on whether the Shareholder’s income exceeds certain threshold amounts). The deductibility of capital losses is subject to limitations under the Internal Revenue Code.

A U.S. Shareholder’s adjusted tax basis in its shares of the MLP Fund may be less than the price paid for the shares of the Fund as a result of distributions by the MLP Fund in excess of the MLP Fund’s earnings and profits (i.e., returns of capital).

Tax Reporting and Withholding (All MainStay Funds)

We will mail your tax report each year by February 15. This report will tell you which dividends and redemption proceeds should be treated as taxable ordinary income, which, if any, as qualified dividends, and which, if any, as long-term capital gains.

Shareholder Guide

For MainStay Fund shares acquired January 1, 2012 or later, cost basis will be reported to you and the IRS for any IRS Form 1099-B reportable transactions ( e.g. , redemptions and exchanges). The cost basis accounting method you select will be used to report transactions. If you do not select a cost basis accounting method, the MainStay Funds’ default method (average cost) will be used.

The MainStay Funds may be required to withhold U.S. federal income tax, currently at the rate of 28%, of all taxable distributions payable to you if you fail to provide the MainStay Funds with your correct taxpayer identification number or to make required certifications, or if you have been notified by the IRS that you are subject to backup withholding. Such withholding is not an additional tax and any amounts withheld may be credited against your U.S. federal income tax liability.

Non-U.S. shareholders will generally be subject to U.S. tax withholding at the rate of 30% (or a lower rate under a tax treaty if applicable) on dividends paid by the MainStay Funds.

The MainStay Funds are required to withhold U.S. tax (at a 30% rate) on payments of taxable dividends and (effective January 1, 2019) redemption proceeds and, in the case of MainStay Funds other than the MLP Funds, certain capital gain dividends made to certain entities that fail to comply (or to be deemed compliant) with extensive new reporting and withholding requirements designed to inform the U.S. Department of the Treasury of U.S.-owned foreign investment accounts. Shareholders may be requested to provide additional information to the Funds to enable the Funds to determine whether withholding is required.

Return of Capital (All MainStay Funds, except MainStay Cushing Funds)

If a MainStay Fund's distributions exceed its taxable income and capital gains realized in any year, such excess distributions will constitute a return of capital for federal income tax purposes. A return of capital generally will not be taxable to you at the time of the distribution, but will reduce the cost basis of your shares and result in a higher reported capital gain or a lower reported capital loss when you sell shares.

MainStay Cushing Funds

Although each of the MLP Premier Fund and Royalty Energy Income Fund anticipate that, due to the tax characterization of cash distributions made by MLPs and/or Energy Trusts, a significant portion of each of these Fund’s distributions to shareholders will generally consist of return of capital for U.S. federal income tax purposes, no assurance can be given in this regard. In general, a distribution will constitute a return of capital to a shareholder, rather than a dividend, to the extent such distribution exceeds the MLP Fund’s current and accumulated earnings and profits. The portion of any distribution treated as a return of capital will not be subject to tax currently, but will result in a corresponding reduction in a shareholder’s basis in these Funds’ shares and in the shareholder’s recognizing more gain or less loss (that is, will result in an increase of a shareholder’s tax liability) when the shareholder later sells shares of the MLP Fund. Distributions in excess of a shareholder’s adjusted tax basis in its shares are generally treated as capital gains.

A portion of the MainStay Cushing Renaissance Advantage Fund’s distributions may also be characterized as return of capital. The MainStay Cushing Renaissance Advantage Fund may invest up to 25% of its total assets in MLPs and a portion of the cash distributions received by the MainStay Cushing Renaissance Advantage Fund from the MLPs in which it invests may be characterized as return of capital. If, for any calendar year, the MainStay Cushing Renaissance Advantage Fund’s total distributions exceed both current earnings and profits and accumulated earnings and profits, the excess will generally be treated as return of capital for U.S. federal income tax purposes up to the amount of a shareholder’s tax basis in the common shares, reducing that basis accordingly, which will generally increase the shareholder’s potential gain, or reduce the shareholder’s potential loss, on any subsequent sale or other disposition of common shares. The MainStay Cushing Renaissance Advantage Fund cannot assure you as to what percentage, if any, of the distributions paid on the shares will consist of net capital gain, which is taxed at reduced rates for non-corporate shareholders, or return of capital.

Tax Treatment of Exchanges (All MainStay Funds)

An exchange of shares of one MainStay Fund for shares of another will be treated as a sale of shares of the first MainStay Fund and a purchase of shares of the second MainStay Fund. Any gain or loss on the transaction will be tax reportable if you are not a tax-exempt shareholder.

Medicare Tax (All MainStay Funds)

An additional 3.8% Medicare tax is imposed on certain net investment income (including ordinary dividends and capital gain distributions received from a Fund and net gains from redemptions or other taxable dispositions of Fund shares) of U.S. individuals, estates and trusts to the extent that such person’s “modified adjusted gross income” (in the case of an individual) or “adjusted gross income” (in the case of an estate or trust) exceeds certain threshold amounts.

General U.S. Tax Treatment U.S. Nonresident Shareholders (All MainStay Funds)

Non-U.S. Shareholders generally will be subject to U.S. federal withholding tax at the rate of 30% on distributions treated as ordinary income, and may be subject to estate tax with respect to their MainStay Fund shares. However, non-U.S. Shareholders may not be subject to U.S. federal withholding tax on certain distributions derived from certain U.S. interest income and/or certain short-term capital gains earned by the MainStay Funds, to the extent designated by the MainStay Funds. There can be no assurance as to whether any of a MainStay Fund’s distributions will be eligible for this exemption from withholding of U.S. federal income tax or, if eligible, will be

Shareholder Guide

designated as such by the MainStay Funds. Moreover, depending on the circumstances, a MainStay Fund may designate all, some or none of the MainStay Fund’s potentially eligible dividends as derived from such U.S. interest income or from such short-term capital gains, and a portion of the MainStay Fund’s distributions (e.g. interest from non-U.S. sources or any foreign currency gains) would be ineligible for this potential exemption from withholding when paid to non-U.S. shareholders.

Non-U.S. Shareholders who fail to furnish any MainStay Fund with the proper IRS Form W-8 (i.e., IRS Form W-8BEN, IRS Form W-8BEN-E, IRS Form W-8ECI, IRS Form W-8IMY or IRS Form W-8EXP), or an acceptable substitute, may be subject to backup withholding (currently at a rate of 28%) rate on dividends (including capital gain dividends) and on the proceeds of redemptions and exchanges. The MainStay Funds are also required to withhold U.S. tax (at a 30% rate) on payments of dividends as well as, effective January 1, 2019, redemption proceeds and certain capital gain dividends made to certain non-U.S. Shareholders that fail to comply (or be deemed compliant) with extensive reporting and withholding requirements in the Internal Revenue Code designed to inform the U.S. Department of the Treasury of U.S.-owned foreign investment accounts. Shareholders may be requested to provide additional information to determine whether such withholding is required. Non-U.S. Shareholders are advised to consult with their own tax advisors with respect to the particular tax consequences to them of an investment in the MainStay Funds.

Seek professional assistance. Your financial adviser can help you keep your investment goals coordinated with your tax considerations. However, regarding tax advice, always rely on your tax advisor. For additional information on federal, state and local taxation, see the SAI.

Do not overlook sales charges. The amount you pay in sales charges reduces gains and increases losses for tax purposes.

Know With Whom You Are Investing

WHO RUNS THE FUNDS’ DAY-TO-DAY BUSINESS?

The Board of the Funds oversees the actions of the Manager and the Distributor, and decides on general policies governing the operations of the Funds. The Board also oversees the Funds' officers, who conduct and supervise the daily business of the Funds.

New York Life Investments is located at 51 Madison Avenue, New York, New York 10010 and serves as the Funds' Manager. In conformity with the stated policies of the Funds, New York Life Investments administers each Fund’s business affairs and manages the investment operations of each Fund and the composition of the portfolios of the Funds, subject to the supervision of the Board. New York Life Investments, a Delaware limited liability company, commenced operations in April 2000 and is an indirect, wholly-owned subsidiary of New York Life. As of December 31, 2015, New York Life Investments and its affiliates managed approximately $536.2 billion in assets.

The Manager provides office space, conducts clerical, recordkeeping and bookkeeping services, and keeps most of the financial and accounting records required for the Funds. The Manager also pays the Funds’ Chief Compliance Officer’s compensation (a portion of which is reimbursed by the Funds), the salaries and expenses of all personnel affiliated with the Funds, except for the independent members of the Board and all operational expenses that are not the responsibility of the Funds. The Funds do not pay any fees to the Manager under the Management Agreement in return for the advisory and asset allocation services provided. The Funds do, however, indirectly pay their proportionate share of the management fees paid to the Manager by the Underlying Funds in which the Funds invest.

For the fiscal year ended October 31, 2015, the Funds paid the Manager an aggregate fee for services performed as a percentage of the Funds' average daily net assets equal to 0%. For information regarding the basis of the Board's approval of the Funds' Management Agreement, please refer to the Funds' Semi-Annual Report for the fiscal period ended April 30, 2015.

The Manager is not responsible for records maintained by the Funds' custodian, transfer agent or dividend disbursing agent except to the extent expressly provided in the Management Agreement between the Manager and the Funds.

Pursuant to an agreement with New York Life Investments, State Street Bank and Trust Company, One Lincoln Street, Boston, Massachusetts 02111-2900 ("State Street") provides sub-administration and sub-accounting services for the Funds. These services include calculating NAVs of the Funds, maintaining general ledger and sub-ledger accounts for the calculation of the Funds' respective NAVs, and assisting New York Life Investments in conducting various aspects of the Funds' administrative operations. For providing these services to the Funds, State Street is compensated by New York Life Investments.

ADDITIONAL INFORMATION REGARDING FEE WAIVERS

Contractual

New York Life Investments has contractually agreed to waive fees and/or reimburse expenses of the appropriate class of certain Asset Allocation Funds so that the Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase and sale of portfolio investments, and acquired (underlying) fund fees and expenses) of a class do not exceed the percentages of average daily net assets set forth below.

MainStay Conservative Allocation Fund: Class A, 0.50%; Investor Class, 0.55%; Class B, 1.30%; Class C, 1.30%; Class I, 0.25%; and Class R3, 0.85%

MainStay Moderate Allocation Fund: Class A, 0.50%; Investor Class, 0.55%; Class B, 1.30%; Class C, 1.30%; Class I, 0.25%;

and Class R3, 0.85%

MainStay Moderate Growth Allocation Fund: Class A, 0.50%; Investor Class, 0.55%; Class B, 1.30%; Class C, 1.30%; Class I, 0.25%; and Class R3, 0.85%

These agreements will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board.

WHO MANAGES YOUR MONEY?

New York Life Investments serves as Manager of the Funds and is responsible for the day-to-day portfolio management services of the Funds.

Know With Whom You Are Investing

Section 36(b) of the 1940 Act by charging excessive investment management fees. The plaintiffs seek monetary damages and other relief from New York Life Investments. New York Life Investments believes that the case has no merit, and intends to vigorously defend the matter.

On May 6, 2015, a second amended complaint was filed which, among other things, added MainStay High Yield Opportunities Fund as an additional Fund on whose behalf the complaint was brought. New York Life Investments filed a motion to dismiss the amended complaint. This motion was denied on October 28, 2015. New York Life Investments filed an answer to the amended complaint on November 30, 2015. Discovery in the case has commenced.

Section 15(a) of the 1940 Act requires that all contracts pursuant to which persons serve as investment advisers to investment companies be approved by shareholders. As interpreted, this requirement also applies to the appointment of subadvisors to the Funds. The Manager and the Funds have obtained an exemptive order (the “Current Order”) from the SEC permitting the Manager, on behalf of a Fund and subject to the approval of the Board, including a majority of the Independent Trustees, to hire or terminate, and to modify any existing or future subadvisory agreement with, unaffiliated subadvisors and subadvisors that are “wholly-owned subsidiaries” (as defined in the 1940 Act) of New York Life Investments, or a sister company of New York Life Investments that is a wholly-owned subsidiary of a company that, indirectly or directly, wholly owns New York Life Investments (“Wholly-Owned Subadvisors”). This authority is subject to certain conditions, including that each Fund will notify shareholders and provide them with certain information required by the Current Order within 90 days of hiring a new subadvisor. The Funds covered by this Prospectus may not rely on the Current Order without first obtaining shareholder approval. Please see the SAI for more information on this Order.

PORTFOLIO MANAGER BIOGRAPHIES

The following section provides biographical information about each Fund’s portfolio managers. Additional information regarding the portfolio managers' compensation, other accounts they manage and their ownership of shares of the Funds is available in the SAI.


Poul Kristensen, CFA	Mr. Kristensen has managed the Funds since 2013. He joined New York Life Investments in 2011 as a Director in the Strategic Asset Allocation & Solutions Group. He is currently a Managing Director and focuses on global macroeconomic trends and investment strategy. Prior to joining New York Life Investments, he worked as senior investment strategist for Danske Bank where he advised major pension funds on asset allocation. Mr. Kristensen holds a Master's degree in economics from Aarhus University in Denmark, is a Chartered Financial Analyst (“CFA ^{^®} ”) charterholder and is also certified in quantitative finance (CQF designation).
Amit Soni, CFA	Mr. Soni has managed the Funds since February 2016. He joined New York Life Investments in 2013 as a Senior Associate in the Strategic Asset Allocation and Solutions Group. He is currently a Director and focuses on quantitative and macro-economic investment research and portfolio management for the funds managed by the team. Prior to joining New York Life Investments, he worked as an Investment Associate in the Global Asset Allocation group at Putnam Investments. He holds a Master’s degree from the Massachusetts Institute of Technology in Computation for Design and Optimization and a Bachelors degree from the Indian Institute of Technology Kanpur (India) in Mechanical Engineering. He holds the CFA ^® designation and has been in the investment industry since 2008.
Jonathan Swaney	Mr. Swaney has managed the Funds since 2005. He is currently a Managing Director in the Strategic Asset Allocation & Solutions Group. Mr. Swaney has been an employee of New York Life Investments or its affiliates since 1997. He earned his BA in Political Science from The College of William & Mary.

Know With Whom You Are Investing

Jae Yoon, CFA

Mr. Yoon has managed the Funds since 2011. From 2005 to 2009, Mr. Yoon was employed by New York Life Investments where he led the Investment Consulting Group. In 2009, Mr. Yoon joined MacKay Shields LLC as a Senior Managing Director responsible for Risk Management. In his role at MacKay Shields, Mr. Yoon worked side-by-side with the portfolio managers directly enhancing the risk management processes across all portfolios. In January 2011, Mr. Yoon re-joined New York Life Investments as a Senior Managing Director and leads the Strategic Asset Allocation & Solutions Group as its Chief Investment Officer. Mr. Yoon obtained a BS and a Masters degree from Cornell University and attended New York University's Stern School of Business MBA program. He is a CFA ^{^®} charterholder and has been in the investment management industry since 1991.

Financial Highlights

The financial highlights tables are intended to help you understand the Funds' financial performance for the period of the Funds' operations. Certain information reflects financial results for a single Fund share. The total returns in the tables represent the rate that an investor would have earned or lost on an investment in a Fund (assuming reinvestment of all dividends and distributions). This information has been audited by KPMG LLP, whose report, along with the Funds' financial statements, is included in the Annual Report, which is available upon request.

Because the Funds' Class R3 shares have not commenced operations as of the date of this Prospectus, no financial highlights are shown for that share class.

Financial Highlights

MainStay Conservative Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class A	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 12.52	$ 12.56	$ 11.57	$ 10.95	$ 10.80

Net investment income (loss) (a)	0.25	0.22	0.24	0.24	0.25
Net realized and unrealized gain (loss) on investments	(0.23 )	0.50	1.21	0.77	0.20

Total from investment operations	0.02	0.72	1.45	1.01	0.45

Less dividends and distributions:
From net investment income	(0.30 )	(0.29 )	(0.29 )	(0.28 )	(0.30 )
From net realized gain on investments	(0.43 )	(0.47 )	(0.17 )	(0.11 )	—

Total dividends and distributions	(0.73 )	(0.76 )	(0.46 )	(0.39 )	(0.30 )

Net asset value at end of year	$ 11.81	$ 12.52	$ 12.56	$ 11.57	$ 10.95

Total investment return (b)	0.11 %	5.95 %	12.93 %	9.41 %	4.28 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	2.05 %	1.81 %	2.00 %	2.16 %	2.27 %
Net expenses (c)	0.36 %	0.35 %	0.37 %	0.37 %	0.39 %
Portfolio turnover rate	40 %	45 %	52 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 253,308	$ 244,098	$ 201,908	$ 164,116	$ 143,520

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

(c) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro-rata share of the fees and expenses of the Underlying Funds in which it invests. Such indirect expenses are not included in the above expense ratios.



	Year ended October 31,
Investor Class	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 12.52	$ 12.56	$ 11.57	$ 10.96	$ 10.81

Net investment income (loss) (a)	0.23	0.21	0.22	0.23	0.24
Net realized and unrealized gain (loss) on investments	(0.23 )	0.49	1.21	0.76	0.20

Total from investment operations	0.00	0.70	1.43	0.99	0.44

Less dividends and distributions:
From net investment income	(0.28 )	(0.27 )	(0.27 )	(0.27 )	(0.29 )
From net realized gain on investments	(0.43 )	(0.47 )	(0.17 )	(0.11 )	—

Total dividends and distributions	(0.71 )	(0.74 )	(0.44 )	(0.38 )	(0.29 )

Net asset value at end of year	$ 11.81	$ 12.52	$ 12.56	$ 11.57	$ 10.96

Total investment return (b)	(0.03 %)	5.79 %	12.74 %	9.24 %	4.06 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.91 %	1.67 %	1.82 %	2.00 %	2.17 %
Net expenses (c)	0.50 %	0.50 %	0.53 %	0.53 %	0.50 %
Expenses (before waiver/reimbursement) (c)	0.50 %	0.50 %	0.53 %	0.55 %	0.57 %
Portfolio turnover rate	40 %	45 %	52 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 71,083	$ 65,991	$ 59,301	$ 49,050	$ 41,525

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Conservative Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class B	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 12.47	$ 12.51	$ 11.53	$ 10.92	$ 10.76

Net investment income (loss) (a)	0.14	0.11	0.13	0.14	0.15
Net realized and unrealized gain (loss) on investments	(0.23 )	0.50	1.21	0.76	0.21

Total from investment operations	(0.09 )	0.61	1.34	0.90	0.36

Less dividends and distributions:
From net investment income	(0.19 )	(0.18 )	(0.19 )	(0.18 )	(0.20 )
From net realized gain on investments	(0.43 )	(0.47 )	(0.17 )	(0.11 )	—

Total dividends and distributions	(0.62 )	(0.65 )	(0.36 )	(0.29 )	(0.20 )

Net asset value at end of year	$ 11.76	$ 12.47	$ 12.51	$ 11.53	$ 10.92

Total investment return (b)	(0.78 %)	5.03 %	11.87 %	8.46 %	3.30 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.17 %	0.93 %	1.09 %	1.27 %	1.41 %
Net expenses (c)	1.25 %	1.25 %	1.28 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.25 %	1.25 %	1.28 %	1.30 %	1.32 %
Portfolio turnover rate	40 %	45 %	52 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 37,098	$ 39,583	$ 40,953	$ 35,808	$ 33,580

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.



	Year ended October 31,
Class C	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 12.47	$ 12.51	$ 11.53	$ 10.92	$ 10.76

Net investment income (loss) (a)	0.14	0.11	0.13	0.14	0.15
Net realized and unrealized gain (loss) on investments	(0.23 )	0.50	1.21	0.76	0.21

Total from investment operations	(0.09 )	0.61	1.34	0.90	0.36

Less dividends and distributions:
From net investment income	(0.19 )	(0.18 )	(0.19 )	(0.18 )	(0.20 )
From net realized gain on investments	(0.43 )	(0.47 )	(0.17 )	(0.11 )	—

Total dividends and distributions	(0.62 )	(0.65 )	(0.36 )	(0.29 )	(0.20 )

Net asset value at end of year	$ 11.76	$ 12.47	$ 12.51	$ 11.53	$ 10.92

Total investment return (b)	(0.78 %)	5.03 %	11.87 %	8.46 %	3.40 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.16 %	0.90 %	1.07 %	1.25 %	1.41 %
Net expenses (c)	1.25 %	1.25 %	1.28 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.25 %	1.25 %	1.28 %	1.30 %	1.32 %
Portfolio turnover rate	40 %	45 %	52 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 79,242	$ 71,051	$ 51,112	$ 37,977	$ 30,224

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Conservative Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class I	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 12.61	$ 12.64	$ 11.64	$ 11.02	$ 10.87

Net investment income (loss) (a)	0.28	0.25	0.27	0.27	0.28
Net realized and unrealized gain (loss) on investments	(0.23 )	0.51	1.22	0.77	0.20

Total from investment operations	0.05	0.76	1.49	1.04	0.48

Less dividends and distributions:
From net investment income	(0.33 )	(0.32 )	(0.32 )	(0.31 )	(0.33 )
From net realized gain on investments	(0.43 )	(0.47 )	(0.17 )	(0.11 )	—

Total dividends and distributions	(0.76 )	(0.79 )	(0.49 )	(0.42 )	(0.33 )

Net asset value at end of year	$ 11.90	$ 12.61	$ 12.64	$ 11.64	$ 11.02

Total investment return (b)	0.36 %	6.25 %	13.11 %	9.81 %	4.42 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	2.33 %	2.01 %	2.26 %	2.41 %	2.49 %
Net expenses (c)	0.11 %	0.10 %	0.12 %	0.12 %	0.14 %
Portfolio turnover rate	40 %	45 %	52 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 15,928	$ 16,367	$ 11,984	$ 15,916	$ 8,593

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions. Class I shares are not subject to sales charges.

Financial Highlights

MainStay Growth Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class A	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 16.01	$ 14.86	$ 11.55	$ 10.50	$ 10.22

Net investment income (loss) (a)	0.14	0.04	0.07	0.05	0.06
Net realized and unrealized gain (loss) on investments	(0.08 )	1.36	3.38	1.04	0.27

Total from investment operations	0.06	1.40	3.45	1.09	0.33

Less dividends and distributions:
From net investment income	(0.26 )	(0.25 )	(0.14 )	(0.04 )	(0.05 )
From net realized gain on investments	(0.45 )	—	—	—	—

Total dividends and distributions	(0.71 )	(0.25 )	(0.14 )	(0.04 )	(0.05 )

Net asset value at end of year	$ 15.36	$ 16.01	$ 14.86	$ 11.55	$ 10.50

Total investment return (b)	0.36 %	9.53 %	30.22 %	10.43 %	3.25 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.89 %	0.24 %	0.54 %	0.44 %	0.55 %
Net expenses (c)	0.40 %	0.39 %	0.41 %	0.42 %	0.44 %
Portfolio turnover rate	32 %	37 %	33 %	47 %	53 %
Net assets at end of year (in 000’s)	$ 133,089	$ 127,986	$ 105,462	$ 77,775	$ 70,127

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.



	Year ended October 31,
Investor Class	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.98	$ 14.84	$ 11.54	$ 10.49	$ 10.22

Net investment income (loss) (a)	0.12	0.02	0.05	0.04	0.05
Net realized and unrealized gain (loss) on investments	(0.09 )	1.35	3.38	1.04	0.27

Total from investment operations	0.03	1.37	3.43	1.08	0.32

Less dividends and distributions:
From net investment income	(0.23 )	(0.23 )	(0.13 )	(0.03 )	(0.05 )
From net realized gain on investments	(0.45 )	—	—	—	—

Total dividends and distributions	(0.68 )	(0.23 )	(0.13 )	(0.03 )	(0.05 )

Net asset value at end of year	$ 15.33	$ 15.98	$ 14.84	$ 11.54	$ 10.49

Total investment return (b)	0.19 %	9.33 %	30.01 %	10.37 %	3.12 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.75 %	0.12 %	0.40 %	0.35 %	0.50 %
Net expenses (c)	0.55 %	0.55 %	0.55 %	0.53 %	0.50 %
Expenses (before waiver/reimbursement) (c)	0.57 %	0.56 %	0.60 %	0.63 %	0.65 %
Portfolio turnover rate	32 %	37 %	33 %	47 %	53 %
Net assets at end of year (in 000’s)	$ 119,362	$ 112,122	$ 98,827	$ 76,323	$ 71,730

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Growth Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class B	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.57	$ 14.47	$ 11.25	$ 10.27	$ 10.03

Net investment income (loss) (a)	0.01	(0.09 )	(0.04 )	(0.04 )	(0.02 )
Net realized and unrealized gain (loss) on investments	(0.10 )	1.32	3.30	1.02	0.26

Total from investment operations	(0.09 )	1.23	3.26	0.98	0.24

Less dividends and distributions:
From net investment income	(0.11 )	(0.13 )	(0.04 )	—	—
From net realized gain on investments	(0.45 )	—	—	—	—

Total dividends and distributions	(0.56 )	(0.13 )	(0.04 )	—	—

Net asset value at end of year	$ 14.92	$ 15.57	$ 14.47	$ 11.25	$ 10.27

Total investment return (b)	(0.57 %)	8.55 %	29.10 %	9.54 % (c)	2.49 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.05 %	(0.61 %)	(0.32 %)	(0.38 %)	(0.23 %)
Net expenses (d)	1.30 %	1.30 %	1.30 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (d)	1.32 %	1.31 %	1.35 %	1.38 %	1.40 %
Portfolio turnover rate	32 %	37 %	33 %	47 %	53 %
Net assets at end of year (in 000’s)	$ 53,265	$ 59,583	$ 60,627	$ 49,650	$ 49,874

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

(d) In addition to the fees and expenses which the Fund bears directly, the Fund indirectly bears a pro-rata share of the fees and expenses of the Underlying Funds in which it invests. Such indirect expenses are not included in the above expense ratios.



	Year ended October 31,
Class C	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.59	$ 14.49	$ 11.27	$ 10.29	$ 10.04

Net investment income (loss) (a)	(0.01 )	(0.10 )	(0.05 )	(0.05 )	(0.03 )
Net realized and unrealized gain (loss) on investments	(0.08 )	1.33	3.31	1.03	0.28

Total from investment operations	(0.09 )	1.23	3.26	0.98	0.25

Less dividends and distributions:
From net investment income	(0.11 )	(0.13 )	(0.04 )	—	—
From net realized gain on investments	(0.45 )	—	—	—	—

Total dividends and distributions	(0.56 )	(0.13 )	(0.04 )	—	—

Net asset value at end of year	$ 14.94	$ 15.59	$ 14.49	$ 11.27	$ 10.29

Total investment return (b)	(0.51 %)	8.54 %	29.04 %	9.52 %	2.49 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	(0.04 %)	(0.66 %)	(0.37 %)	(0.42 %)	(0.27 %)
Net expenses (c)	1.30 %	1.30 %	1.30 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.32 %	1.31 %	1.35 %	1.38 %	1.40 %
Portfolio turnover rate	32 %	37 %	33 %	47 %	53 %
Net assets at end of year (in 000’s)	$ 25,841	$ 22,767	$ 19,043	$ 13,557	$ 12,484

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Growth Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class I	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 16.23	$ 15.05	$ 11.69	$ 10.62	$ 10.33

Net investment income (loss) (a)	0.18	0.08	0.10	0.07	0.09
Net realized and unrealized gain (loss) on investments	(0.08 )	1.39	3.43	1.07	0.28

Total from investment operations	0.10	1.47	3.53	1.14	0.37

Less dividends and distributions:
From net investment income	(0.30 )	(0.29 )	(0.17 )	(0.07 )	(0.08 )
From net realized gain on investments	(0.45 )	—	—	—	—

Total dividends and distributions	(0.75 )	(0.29 )	(0.17 )	(0.07 )	(0.08 )

Net asset value at end of year	$ 15.58	$ 16.23	$ 15.05	$ 11.69	$ 10.62

Total investment return (b)	0.60 %	9.84 %	30.49 %	10.89 %	3.55 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.11 %	0.52 %	0.75 %	0.63 %	0.84 %
Net expenses (c)	0.15 %	0.14 %	0.16 %	0.17 %	0.19 %
Portfolio turnover rate	32 %	37 %	33 %	47 %	53 %
Net assets at end of year (in 000’s)	$ 3,970	$ 3,621	$ 2,665	$ 1,820	$ 1,539

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions. Class I shares are not subject to sales charges.

Financial Highlights

MainStay Moderate Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class A	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 14.19	$ 13.90	$ 11.97	$ 11.06	$ 10.87

Net investment income (loss) (a)	0.23	0.19	0.21	0.20	0.20
Net realized and unrealized gain (loss) on investments	(0.15 )	0.82	2.00	0.93	0.22

Total from investment operations	0.08	1.01	2.21	1.13	0.42

Less dividends and distributions:
From net investment income	(0.30 )	(0.31 )	(0.28 )	(0.22 )	(0.23 )
From net realized gain on investments	(0.65 )	(0.41 )	—	—	—

Total dividends and distributions	(0.95 )	(0.72 )	(0.28 )	(0.22 )	(0.23 )

Net asset value at end of year	$ 13.32	$ 14.19	$ 13.90	$ 11.97	$ 11.06

Total investment return (b)	0.59 %	7.47 %	18.88 %	10.43 %	3.85 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.67 %	1.36 %	1.62 %	1.75 %	1.79 %
Net expenses (c)	0.35 %	0.34 %	0.35 %	0.35 %	0.36 %
Portfolio turnover rate	39 %	47 %	49 %	64 %	60 %
Net assets at end of year (in 000’s)	$ 353,841	$ 339,189	$ 288,920	$ 229,051	$ 207,282

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.



	Year ended October 31,
Investor Class	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 14.17	$ 13.89	$ 11.96	$ 11.06	$ 10.86

Net investment income (loss) (a)	0.21	0.17	0.18	0.18	0.18
Net realized and unrealized gain (loss) on investments	(0.14 )	0.81	2.01	0.93	0.23

Total from investment operations	0.07	0.98	2.19	1.11	0.41

Less dividends and distributions:
From net investment income	(0.28 )	(0.29 )	(0.26 )	(0.21 )	(0.21 )
From net realized gain on investments	(0.65 )	(0.41 )	—	—	—

Total dividends and distributions	(0.93 )	(0.70 )	(0.26 )	(0.21 )	(0.21 )

Net asset value at end of year	$ 13.31	$ 14.17	$ 13.89	$ 11.96	$ 11.06

Total investment return (b)	0.50 %	7.22 %	18.68 %	10.19 %	3.73 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.52 %	1.22 %	1.42 %	1.57 %	1.65 %
Net expenses (c)	0.52 %	0.51 %	0.53 %	0.53 %	0.50 %
Expenses (before waiver/reimbursement) (c)	0.52 %	0.51 %	0.53 %	0.54 %	0.56 %
Portfolio turnover rate	39 %	47 %	49 %	64 %	60 %
Net assets at end of year (in 000’s)	$ 158,390	$ 146,793	$ 128,403	$ 102,910	$ 90,248

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Moderate Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class B	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 13.97	$ 13.70	$ 11.81	$ 10.91	$ 10.72

Net investment income (loss) (a)	0.11	0.07	0.09	0.10	0.10
Net realized and unrealized gain (loss) on investments	(0.14 )	0.80	1.97	0.92	0.22

Total from investment operations	(0.03 )	0.87	2.06	1.02	0.32

Less dividends and distributions:
From net investment income	(0.18 )	(0.19 )	(0.17 )	(0.12 )	(0.13 )
From net realized gain on investments	(0.65 )	(0.41 )	—	—	—

Total dividends and distributions	(0.83 )	(0.60 )	(0.17 )	(0.12 )	(0.13 )

Net asset value at end of year	$ 13.11	$ 13.97	$ 13.70	$ 11.81	$ 10.91

Total investment return (b)	(0.27 %)	6.48 %	17.70 %	9.47 %	2.94 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.79 %	0.49 %	0.71 %	0.84 %	0.90 %
Net expenses (c)	1.27 %	1.26 %	1.28 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.27 %	1.26 %	1.28 %	1.29 %	1.31 %
Portfolio turnover rate	39 %	47 %	49 %	64 %	60 %
Net assets at end of year (in 000’s)	$ 80,474	$ 88,007	$ 88,451	$ 77,807	$ 73,686

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.



	Year ended October 31,
Class C	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 13.97	$ 13.70	$ 11.81	$ 10.91	$ 10.73

Net investment income (loss) (a)	0.10	0.06	0.09	0.09	0.10
Net realized and unrealized gain (loss) on investments	(0.13 )	0.81	1.97	0.93	0.22

Total from investment operations	(0.03 )	0.87	2.06	1.02	0.32

Less dividends and distributions:
From net investment income	(0.18 )	(0.19 )	(0.17 )	(0.12 )	(0.14 )
From net realized gain on investments	(0.65 )	(0.41 )	—	—	—

Total dividends and distributions	(0.83 )	(0.60 )	(0.17 )	(0.12 )	(0.14 )

Net asset value at end of year	$ 13.11	$ 13.97	$ 13.70	$ 11.81	$ 10.91

Total investment return (b)	(0.27 %)	6.48 %	17.70 %	9.47 %	2.94 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.77 %	0.45 %	0.68 %	0.83 %	0.91 %
Net expenses (c)	1.27 %	1.26 %	1.28 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.27 %	1.26 %	1.28 %	1.29 %	1.31 %
Portfolio turnover rate	39 %	47 %	49 %	64 %	60 %
Net assets at end of year (in 000’s)	$ 71,281	$ 67,851	$ 55,464	$ 42,203	$ 39,531

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Moderate Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class I	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 14.28	$ 13.98	$ 12.04	$ 11.12	$ 10.92

Net investment income (loss) (a)	0.26	0.20	0.25	0.23	0.23
Net realized and unrealized gain (loss) on investments	(0.14 )	0.85	2.00	0.94	0.22

Total from investment operations	0.12	1.05	2.25	1.17	0.45

Less dividends and distributions:
From net investment income	(0.34 )	(0.34 )	(0.31 )	(0.25 )	(0.25 )
From net realized gain on investments	(0.65 )	(0.41 )	—	—	—

Total dividends and distributions	(0.99 )	(0.75 )	(0.31 )	(0.25 )	(0.25 )

Net asset value at end of year	$ 13.41	$ 14.28	$ 13.98	$ 12.04	$ 11.12

Total investment return (b)	0.84 %	7.74 %	19.14 %	10.75 %	4.16 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.88 %	1.42 %	1.93 %	1.99 %	2.05 %
Net expenses (c)	0.10 %	0.09 %	0.10 %	0.10 %	0.11 %
Portfolio turnover rate	39 %	47 %	49 %	64 %	60 %
Net assets at end of year (in 000’s)	$ 13,702	$ 11,757	$ 8,251	$ 12,631	$ 9,972

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions. Class I shares are not subject to sales charges.

Financial Highlights

MainStay Moderate Growth Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class A	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.47	$ 14.54	$ 11.80	$ 10.82	$ 10.58

Net investment income (loss) (a)	0.19	0.11	0.14	0.13	0.13
Net realized and unrealized gain (loss) on investments	(0.07 )	1.11	2.82	0.98	0.26

Total from investment operations	0.12	1.22	2.96	1.11	0.39

Less dividends and distributions:
From net investment income	(0.28 )	(0.29 )	(0.22 )	(0.13 )	(0.15 )
From net realized gain on investments	(0.66 )	—	—	—	—

Total dividends and distributions	(0.94 )	(0.29 )	(0.22 )	(0.13 )	(0.15 )

Net asset value at end of year	$ 14.65	$ 15.47	$ 14.54	$ 11.80	$ 10.82

Total investment return (b)	0.81 %	8.48 %	25.50 %	10.42 %	3.66 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.30 %	0.74 %	1.09 %	1.16 %	1.21 %
Net expenses (c)	0.36 %	0.35 %	0.37 %	0.37 %	0.38 %
Portfolio turnover rate	36 %	45 %	47 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 301,459	$ 283,404	$ 233,003	$ 174,089	$ 160,679

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.



	Year ended October 31,
Investor Class	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.45	$ 14.52	$ 11.79	$ 10.81	$ 10.58

Net investment income (loss) (a)	0.17	0.09	0.12	0.11	0.12
Net realized and unrealized gain (loss) on investments	(0.08 )	1.11	2.81	0.99	0.25

Total from investment operations	0.09	1.20	2.93	1.10	0.37

Less dividends and distributions:
From net investment income	(0.25 )	(0.27 )	(0.20 )	(0.12 )	(0.14 )
From net realized gain on investments	(0.66 )	—	—	—	—

Total dividends and distributions	(0.91 )	(0.27 )	(0.20 )	(0.12 )	(0.14 )

Net asset value at end of year	$ 14.63	$ 15.45	$ 14.52	$ 11.79	$ 10.81

Total investment return (b)	0.64 %	8.31 %	25.22 %	10.29 %	3.47 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.13 %	0.61 %	0.91 %	1.00 %	1.11 %
Net expenses (c)	0.54 %	0.52 %	0.55 %	0.53 %	0.50 %
Expenses (before waiver/reimbursement) (c)	0.54 %	0.52 %	0.55 %	0.57 %	0.58 %
Portfolio turnover rate	36 %	45 %	47 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 207,598	$ 192,129	$ 168,045	$ 133,413	$ 121,733

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Moderate Growth Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class B	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.20	$ 14.30	$ 11.61	$ 10.64	$ 10.42

Net investment income (loss) (a)	0.06	(0.02 )	0.02	0.03	0.04
Net realized and unrealized gain (loss) on investments	(0.07 )	1.09	2.78	0.98	0.24

Total from investment operations	(0.01 )	1.07	2.80	1.01	0.28

Less dividends and distributions:
From net investment income	(0.14 )	(0.17 )	(0.11 )	(0.04 )	(0.06 )
From net realized gain on investments	(0.66 )	—	—	—	—

Total dividends and distributions	(0.80 )	(0.17 )	(0.11 )	(0.04 )	(0.06 )

Net asset value at end of year	$ 14.39	$ 15.20	$ 14.30	$ 11.61	$ 10.64

Total investment return (b)	(0.08 %)	7.49 %	24.33 %	9.38 %	2.79 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.43 %	(0.12 %)	0.19 %	0.27 %	0.36 %
Net expenses (c)	1.29 %	1.27 %	1.30 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.29 %	1.27 %	1.30 %	1.32 %	1.33 %
Portfolio turnover rate	36 %	45 %	47 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 93,000	$ 105,839	$ 108,524	$ 92,620	$ 90,887

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.



	Year ended October 31,
Class C	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.20	$ 14.30	$ 11.61	$ 10.64	$ 10.42

Net investment income (loss) (a)	0.05	(0.03 )	0.02	0.03	0.04
Net realized and unrealized gain (loss) on investments	(0.07 )	1.10	2.78	0.98	0.24

Total from investment operations	(0.02 )	1.07	2.80	1.01	0.28

Less dividends and distributions:
From net investment income	(0.14 )	(0.17 )	(0.11 )	(0.04 )	(0.06 )
From net realized gain on investments	(0.66 )	—	—	—	—

Total dividends and distributions	(0.80 )	(0.17 )	(0.11 )	(0.04 )	(0.06 )

Net asset value at end of year	$ 14.38	$ 15.20	$ 14.30	$ 11.61	$ 10.64

Total investment return (b)	(0.08 %)	7.50 %	24.33 %	9.37 %	2.79 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	0.37 %	(0.17 %)	0.15 %	0.25 %	0.36 %
Net expenses (c)	1.29 %	1.27 %	1.30 %	1.28 %	1.25 %
Expenses (before waiver/reimbursement) (c)	1.29 %	1.27 %	1.30 %	1.32 %	1.33 %
Portfolio turnover rate	36 %	45 %	47 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 52,870	$ 49,817	$ 39,329	$ 28,725	$ 26,065

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions.

Financial Highlights

MainStay Moderate Growth Allocation Fund

(a series of MainStay Funds Trust)

(Selected per share data and ratios)


	Year ended October 31,
Class I	2015	2014	2013	2012	2011
Net asset value at beginning of year	$ 15.62	$ 14.67	$ 11.91	$ 10.91	$ 10.67

Net investment income (loss) (a)	0.22	0.12	0.16	0.16	0.18
Net realized and unrealized gain (loss) on investments	(0.06 )	1.15	2.85	1.00	0.23

Total from investment operations	0.16	1.27	3.01	1.16	0.41

Less dividends and distributions:
From net investment income	(0.32 )	(0.32 )	(0.25 )	(0.16 )	(0.17 )
From net realized gain on investments	(0.66 )	—	—	—	—

Total dividends and distributions	(0.98 )	(0.32 )	(0.25 )	(0.16 )	(0.17 )

Net asset value at end of year	$ 14.80	$ 15.62	$ 14.67	$ 11.91	$ 10.91

Total investment return (b)	1.05 %	8.78 %	25.74 %	10.70 %	3.96 %
Ratios (to average net assets)/Supplemental Data:
Net investment income (loss)	1.47 %	0.82 %	1.24 %	1.42 %	1.64 %
Net expenses (c)	0.11 %	0.10 %	0.12 %	0.12 %	0.13 %
Portfolio turnover rate	36 %	45 %	47 %	62 %	55 %
Net assets at end of year (in 000’s)	$ 7,568	$ 7,048	$ 2,114	$ 1,321	$ 1,096

(a) Per share data based on average shares outstanding during the year.

(b) Total investment return is calculated exclusive of sales charges and assumes the reinvestment of dividends and distributions. Class I shares are not subject to sales charges.

[This page intentionally left blank]

No dealer, sales representative or any other person is authorized to give any information or to make any representations other than those contained in this Prospectus and in the Statement of Additional Information ("SAI"), in connection with the offer contained in this Prospectus, and, if given or made, such other information or representations must not be relied upon as having been authorized by the Funds or the Distributor. This Prospectus and the SAI do not constitute an offer by the Funds or by the Distributor to sell or a solicitation of any offer to buy any of the securities offered hereby in any jurisdiction or to any person to whom it is unlawful to make such offer in such jurisdiction.

HOUSEHOLD MAILINGS AND E-DELIVERY

Each year you are automatically sent an updated Summary Prospectus and Annual and Semiannual Reports for the Funds. You may also occasionally receive proxy statements for the Funds. In order to reduce the volume of mail you receive, when possible, only one copy of these documents may be sent to shareholders who are part of the same family and share the same household address. You may elect to receive these documents electronically in lieu of paper form by enrolling in e-delivery on our website, mainstayinvestments.com/edelivery. If you would like to opt out of household-based mailings, please call toll free 800-MAINSTAY (624-6782) .

STATEMENT OF ADDITIONAL INFORMATION ("SAI")

Provides more details about the Funds. The current SAI is incorporated by reference into the Prospectus and has been filed with the Securities and Exchange Commission (“SEC”).

ANNUAL/SEMIANNUAL REPORTS

Provide additional information about the Funds' investments and include discussions of market conditions and investment strategies that significantly affected the Funds' performance during the last fiscal year or semiannual period.

TO OBTAIN INFORMATION

More information about the Funds, including the SAI and the Annual/Semiannual Reports, is available, without charge, upon request. To obtain information, or for shareholder inquiries, call toll-free 800-MAINSTAY (624-6782) , visit our website at mainstayinvestments.com, or write to NYLIFE Distributors LLC, Attn: MainStay Marketing Dept., 169 Lackawanna Avenue, Parsippany, New Jersey 07054. Effective April 1, 2016, the MainStay Marketing Department can be reached at 30 Hudson Street, Jersey City, New Jersey 07302.

You can also review and copy information about the Funds (including the SAI) by visiting the SEC's Public Reference Room in Washington, DC (phone 1-202-551-8090). This information is also available on the EDGAR database on the SEC's Internet site at http://www.sec.gov. Copies of this information may be obtained by paying a duplicating fee and sending an e-mail to publicinfo@sec.gov or writing the SEC's Public Reference Section, Washington, DC 20549-0102.

NYLIFE Distributors LLC
169 Lackawanna Avenue
Parsippany, New Jersey 07054
Effective April 1, 2016, the address will be 30 Hudson Street, Jersey City, NJ 07302
NYLIFE Distributors LLC is the principal underwriter and distributor of the MainStay Funds

MainStay Investments ^{^®} is a registered service mark and name under which New York Life Investment Management LLC does business. MainStay Investments, an indirect subsidiary of New York Life Insurance Company, New York, New York 10010, provides investment advisory products and services.

SEC File Number: 811-22321 (MainStay Funds Trust)

For more information call 800-MAINSTAY (624-6782) or visit our website at mainstayinvestments.com.

(NYLIM) NL AA MSAA01-02/16


Prospectus for MainStay Equity Funds
MainStay Funds ^{^®}	February 29, 2016


	Class A	Investor Class	Class B	Class C	Class I	Class R1	Class R2	Class R3	Class R6
U.S. Equity
MainStay Common Stock Fund	MSOAX	MCSSX	MOPBX	MGOCX	MSOIX	-	MSORX	MSOSX	-
MainStay Cornerstone Growth Fund	KLGAX	KLGNX	KLGBX	KLGCX	KLGIX	-	KLGRX	-	-
MainStay Epoch U.S. All Cap Fund	MAAAX	MAWNX	MAWBX	MAWCX	MATIX	-	-	-	-
MainStay Epoch U.S. Equity Yield Fund	EPLPX	EPLIX	-	EPLKX	EPLCX	-	-	-	-
MainStay Epoch U.S. Small Cap Fund	MOPAX	MOINX	MOTBX	MOPCX	MOPIX	MOPRX	MOTRX	MOVRX	-
MainStay ICAP Equity Fund	ICAUX	ICANX	-	ICAVX	ICAEX	ICAWX	ICAYX	ICAZX	-
MainStay ICAP Select Equity Fund	ICSRX	ICSOX	ICSQX	ICSVX	ICSLX	ICSWX	ICSYX	ICSZX	ICSDX
MainStay Large Cap Growth Fund	MLAAX	MLINX	MLABX	MLACX	MLAIX	MLRRX	MLRTX	MLGRX	MLRSX
MainStay MAP Fund	MAPAX	MSMIX	MAPBX	MMPCX	MUBFX	MAPRX	MPRRX	MMAPX	-
MainStay S&P 500 Index Fund	MSXAX	MYSPX	-	-	MSPIX	-	-	-	-
MainStay U.S. Equity Opportunities Fund	MYCTX	MYCNX	-	MYCCX	MYCIX	-	-	-	-
International/Global Equity
MainStay Emerging Markets Opportunities Fund	MEOAX	MEOVX	-	MEOCX	MEOIX	-	-	-	-
MainStay Epoch Global Choice Fund	EPAPX	EPAIX	-	EPAKX	EPACX	-	-	-	-
MainStay Epoch Global Equity Yield Fund	EPSPX	EPSIX	-	EPSKX	EPSYX	-	EPSZX	EPSHX	EPSRX
MainStay Epoch International Small Cap Fund	EPIPX	EPIIX	-	EPIKX	EPIEX	-	-	-	-
MainStay ICAP International Fund	ICEVX	ICELX	-	ICEWX	ICEUX	ICETX	ICEYX	ICEZX	-
MainStay International Equity Fund	MSEAX	MINNX	MINEX	MIECX	MSIIX	MIERX	MIRRX	MIFRX	-
MainStay International Opportunities Fund	MYITX	MYINX	-	MYICX	MYIIX	-	-	-	-


Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this Prospectus. Any representation to the contrary is a criminal offense.

Table of Contents

U.S. Equity Funds


MainStay Common Stock Fund	4
MainStay Cornerstone Growth Fund	8
MainStay Epoch U.S. All Cap Fund	12
MainStay Epoch U.S. Equity Yield Fund	16
MainStay Epoch U.S. Small Cap Fund	20
MainStay ICAP Equity Fund	24
MainStay ICAP Select Equity Fund	28
MainStay Large Cap Growth Fund	33
MainStay MAP Fund	37
MainStay S&P 500 Index Fund	42
MainStay U.S. Equity Opportunities Fund	46

International/Global Equity Funds


MainStay Emerging Markets Opportunities Fund	51
MainStay Epoch Global Choice Fund	57
MainStay Epoch Global Equity Yield Fund	61
MainStay Epoch International Small Cap Fund	66
MainStay ICAP International Fund	70
MainStay International Equity Fund	75
MainStay International Opportunities Fund	79
More About Investment Strategies and Risks	84
Shareholder Guide	93
Know With Whom You Are Investing	127
Financial Highlights	135

MainStay Common Stock Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R2		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.55	%	0.55	%	0.55	%	0.55	%	0.55	%	0.55	%	0.55	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		0.25	%	0.50	%
	Other Expenses	0.16	%	0.37	%	0.37	%	0.37	%	0.16	%	0.26	%	0.26	% ³
	Acquired (Underlying) Fund Fees and Expenses	0.03	%	0.03	%	0.03	%	0.03	%	0.03	%	0.03	%	0.03	%
	Total Annual Fund Operating Expenses	0.99	%	1.20	%	1.95	%	1.95	%	0.74	%	1.09	%	1.34	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.55% on assets up to $500 million; 0.525% on assets from $500 million to $1 billion; and 0.50% on assets in excess of $1 billion.

3. Based on estimated amounts for the current fiscal year.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R2	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 645	$ 666	$ 198	$ 698	$ 198	$ 298	$ 76	$ 111	$ 136
3 Years	$ 848	$ 910	$ 612	$ 912	$ 612	$ 612	$ 237	$ 347	$ 425
5 Years	$ 1,067	$ 1,173	$ 1,052	$ 1,252	$ 1,052	$ 1,052	$ 411	$ 601	$ 734
10 Years	$ 1,696	$ 1,925	$ 2,080	$ 2,080	$ 2,275	$ 2,275	$ 918	$ 1,329	$ 1,613

Portfolio Turnover

MainStay Common Stock Fund

Principal Investment Strategies

The Fund normally invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in common stocks. The Fund primarily invests in common stocks of U.S. companies with market capitalizations that, at the time of investment, are similar to companies in the Standard & Poor's 500 ^{^®} Index ("S&P 500 ^{^®} Index”) (which ranged from $1.76 billion to $583.61 billion as of December 31, 2015) and the Russell 1000 ^{^®} Index (which ranged from $259.34 million to $583.62 billion as of December 31, 2015).

Investment Process: Using an objective, disciplined and broadly-applied process, Cornerstone Capital Management Holdings LLC, the Fund’s Subadvisor, selects securities that it believes have the most potential to appreciate, while seeking to limit exposure to risk. The Subadvisor also seeks to control the Fund's exposure to risk by diversifying the Fund's portfolio over a large number of securities. The Subadvisor, seeks to construct a broadly-diversified portfolio across sectors and industries using quantitative analysis to identify undervalued and overvalued securities. The Subadvisor uses a quantitative model that is designed to evaluate individual issuers and securities across valuation, momentum and market sentiment criteria. The Subadvisor also conducts a qualitative review of the results of the quantitative analysis. In certain cases, the Subadvisor may deviate from positions or weightings suggested by the quantitative analysis to account for events and conditions that may not be quantifiable by the analysis, such as company-specific and market events. The Subadvisor regularly evaluates the quantitative model and, from time to time, the Subadvisor may adjust the metrics and data underlying its quantitative analysis for a variety reasons, including, without limitation, to account for changing market, financial or economic conditions.

In unusual market conditions, the Fund may invest all or a portion of its assets in investment grade notes and bonds, cash and cash equivalents.

The Subadvisor may sell a security if it no longer believes the security will contribute to meeting the investment objective of the Fund, if better opportunities are identified, or if it determines the initial investment expectations are not being met.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Market Changes Risk: The value of the Fund's investments may fluctuate because of changes in the markets in which the Fund invests, which could cause the Fund to underperform other funds with similar objectives. Changes in these markets may be rapid and unpredictable. From time to time, markets may experience periods of stress for potentially prolonged periods that may result in (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares.

Portfolio Management Risk: The investment strategies, practices and risk analysis used by the Subadvisor may not produce the desired results. In addition, the Fund may not achieve its investment objective if the Subadvisor takes temporary positions in response to unusual or adverse market, economic or political conditions, or other unusual or abnormal circumstances. The quantitative model used by the Subadvisor, and the securities selected based on the model, may not perform as expected. The quantitative model may contain certain assumptions in construction and implementation that may adversely affect the Fund’s performance. In addition, the Fund’s performance will reflect, in part, the Subadvisor’s ability to make active qualitative decisions and timely adjust the quantitative model, including the model’s underlying metrics and data.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Value Stock Risk: Value stocks may never reach what the Subadvisor believes is their full value or they may go down in value. In addition, different types of stocks tend to shift in and out of favor depending on market and economic conditions, and therefore the Fund's performance may be lower or higher than that of funds that invest in other types of equity securities.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. Investor Class shares were first offered on February 28, 2008 and Class R2 shares were first offered on December 14, 2007. Performance figures for Investor Class shares include the

MainStay Common Stock Fund

historical performance of Class A shares through February 27, 2008. As of the date of this Prospectus, Class R2 shares have not yet commenced operations. As a result, the performance figures for Class R2 shares include the historical performance of Class A shares through December 31, 2015. Performance figures for Class R3 shares, first offered on February 29, 2016, include the historical performance of Class A shares through December 31, 2015. The performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class B Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	14.68	%
Worst Quarter
4Q/08	-22.08	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-4.97	%	11.52	%	5.66	%
Investor Class	-5.17	%	11.08	%	5.31	%
Class B	-5.34	%	11.26	%	5.12	%
Class C	-1.36	%	11.51	%	5.12	%
Class I	0.85	%	13.07	%	6.64	%
Class R2	0.46	%	12.67	%	6.15	%
Class R3	0.21	%	12.39	%	5.89	%
Return After Taxes on Distributions
Class B	-5.38	%	11.21	%	4.87	%
Return After Taxes on Distributions and Sale of Fund Shares
Class B	-2.99	%	8.98	%	4.06	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%
Russell 1000 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	0.92	%	12.44	%	7.40	%

After-tax returns are calculated using the highest individual federal marginal income tax rates in effect at the time of each distribution or capital gain or upon the sale of fund shares, and do not reflect the impact of state and local taxes. In some cases, the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class B shares. After-tax returns for the other share classes may vary.

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management Holdings LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Cornerstone Capital Management Holdings LLC	Migene Kim, Vice President	Since 2007
	Andrew Ver Planck, Senior Vice President	Since 2013
	Mona Patni, Vice President	Since 2014

MainStay Common Stock Fund

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Generally, an initial investment minimum of $1,000 applies if you invest in Investor Class, Class B, or Class C shares, $25,000 for Class A shares and $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and $50 minimum for subsequent purchases applies. Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

MainStay Cornerstone Growth Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R2
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.68	%	0.68	%	0.68	%	0.68	%	0.68	%	0.68	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		0.25	%
	Other Expenses	0.26	%	0.39	%	0.39	%	0.39	%	0.26	%	0.36	%
	Total Annual Fund Operating Expenses	1.19	%	1.32	%	2.07	%	2.07	%	0.94	%	1.29	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.70% on assets up to $500 million; 0.675% on assets from $500 million to $1 billion; and 0.65% on assets over $1 billion.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R2
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 665	$ 677	$ 210	$ 710	$ 210	$ 310	$ 96	$ 131
3 Years	$ 907	$ 945	$ 649	$ 949	$ 649	$ 649	$ 300	$ 409
5 Years	$ 1,168	$ 1,234	$ 1,114	$ 1,314	$ 1,114	$ 1,114	$ 520	$ 708
10 Years	$ 1,914	$ 2,053	$ 2,208	$ 2,208	$ 2,400	$ 2,400	$ 1,155	$ 1,556

Portfolio Turnover

Principal Investment Strategies

The Fund invests primarily in equity securities of U.S. companies, the prospective earnings growth of which, in the opinion of Cornerstone Capital Management LLC, the Fund’s Subadvisor, is not fully appreciated by the market or reflected in current market valuations. The Subadvisor also looks for companies it believes have strong management, superior industry positions, excellent balance sheets and superior earnings growth

MainStay Cornerstone Growth Fund

potential. U.S. companies are companies organized in the U.S. that trade primarily on U.S. securities markets. The Fund may also invest in foreign companies. Generally, foreign companies are companies organized outside the U.S. that trade primarily in non-U.S. securities markets.

Under normal circumstances, the Fund will invest at least 80% of its assets in common stocks of large-capitalization growth companies. Large-capitalization growth companies are those that, at the time of investment, have market capitalizations within the range of market capitalizations of companies appearing in the Russell 1000 ^{^®} Growth Index (which ranged from $259.34 million to $583.61 billion as of December 31, 2015).

Investment Process . Normally, the Fund holds between 35 and 55 securities. The 25 most highly regarded of these companies, in the Subadvisor’s opinion, usually constitute approximately 70% of the Fund’s net assets. Notwithstanding this focus, the Fund has no policy to concentrate in securities of issuers in a particular industry or group of industries. Although the Fund does not have a policy to concentrate its investments in any one industry, a large portion of its assets has historically been in technology companies which the Subadvisor believes offer strong growth potential.

During market declines, while adding to positions in favored stocks, the Fund becomes somewhat more aggressive, gradually reducing the number of companies represented in its portfolio. Conversely, in rising markets, while reducing or eliminating fully valued positions, the Fund becomes somewhat more conservative, gradually increasing the number of companies represented in its portfolio. Through this process, the Subadvisor tends to add to positions on price weakness and tends to sell positions into price strength, assuming that the price change is greater than the change in long-term fundamentals. Risk is therefore increased during periods of weakness and reduced during periods of strength. The Subadvisor uses this active management strategy to attempt to add incremental performance while seeking to mitigate risk by utilizing a buy low, sell high discipline.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio manager's ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Concentrated Portfolio Risk: Because the Fund invests in relatively few holdings, a larger percentage of its assets may be invested in a particular issuer or in fewer companies than is typical of other mutual funds. This may increase volatility. The Fund will be more susceptible to adverse economic, political, regulatory or market developments affecting a single issuer.

Technology Stock Risk: The Fund may focus its investments in technology companies. Technology companies are subject to risks such as those relating to the potential rapid obsolescence of technology, failure of the market to accept new technologies and difficulty obtaining financing for necessary research and development or expansion.

Past Performance

MainStay Cornerstone Growth Fund

Growth Index as its primary benchmark. The Russell 1000 ^{^®} Growth Index measures the performance of the large-cap growth segment of the U.S. equity universe. It includes those Russell 1000 ^{^®} companies with higher price-to-book ratios and higher forecasted growth values. The Fund has selected the Standard & Poor’s 500 ^{^®} Index (“S&P 500 ^{^®} Index”) as a secondary benchmark. The S&P 500 ^{^®} Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance.

Performance figures for Class A and Class I shares reflect the historical performance of the Class A and Class I shares of the Keystone Large Cap Growth Fund (the predecessor to the Fund, which was subject to a different fee structure), for periods prior to January 11, 2013. Performance data for the classes varies based on differences in their fee and expense structures and the length of time these share classes have been offered. Keystone Large Cap Growth Fund commenced operations, and Class A shares were first offered, on August 7, 2006. Class I shares were first offered on November 2, 2009. Investor Class shares, Class B shares, Class C shares and Class R2 shares were first offered as of the close of business on January 18, 2013 and include the historical performance of Class A shares through January 18, 2013.

Performance figures for Investor Class shares, Class B shares, Class C shares and Class R2 shares have been adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class A Shares

(by calendar year 2007-2015)


Best Quarter
3Q/10	18.72	%
Worst Quarter
4Q/08	-20.96	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		Life of Fund
Return Before Taxes
Class A	-3.57	%	8.10	%	6.65	%
Investor Class	-3.74	%	7.98	%	6.59	%
Class B	-3.55	%	8.10	%	6.43	%
Class C	0.17	%	8.39	%	6.43	%
Class I	2.30	%	9.62	%	11.79	%
Class R2	1.89	%	9.19	%	7.17	%
Return After Taxes on Distributions
Class A	-5.19	%	6.01	%	5.23	%
Return After Taxes on Distributions and Sale of Fund Shares
Class A	-0.71	%	6.02	%	5.01	%
Russell 1000 ^{^®} Growth Index (reflects no deductions for fees, expenses, or taxes)	5.67	%	13.53	%	9.46	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.42	%

* Reflects performance from November 2, 2009.

After-tax returns are calculated using the highest individual federal marginal income tax rates in effect at the time of each distribution or capital gain or upon the sale of fund shares, and do not reflect the impact of state and local taxes. In some cases, the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class A shares. After-tax returns for the other share classes may vary.

MainStay Cornerstone Growth Fund

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Manager	Service Date
Cornerstone Capital Management LLC	Thomas G. Kamp, CFA, President	Since 2013

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay Epoch U.S. All Cap Fund

Investment Objective

The Fund seeks long-term capital appreciation.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.84	%	0.84	%	0.84	%	0.84	%	0.84	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None
	Other Expenses	0.04	%	0.36	%	0.36	%	0.36	%	0.04	%
	Total Annual Fund Operating Expenses	1.13	%	1.45	%	2.20	%	2.20	%	0.88	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.85% on assets up to $500 million; 0.825% on assets from $500 million to $1 billion; and 0.80% on assets in excess of $1 billion.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 659	$ 689	$ 223	$ 723	$ 223	$ 323	$ 90
3 Years	$ 889	$ 983	$ 688	$ 988	$ 688	$ 688	$ 281
5 Years	$ 1,138	$ 1,299	$ 1,180	$ 1,380	$ 1,180	$ 1,180	$ 488
10 Years	$ 1,849	$ 2,190	$ 2,344	$ 2,344	$ 2,534	$ 2,534	$ 1,084

Portfolio Turnover

Principal Investment Strategies

The Fund invests primarily in a diversified portfolio consisting of equity securities of U.S. companies. Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of U.S. companies across all market capitalizations. Generally, U.S. companies are companies organized in the U.S. that trade primarily in U.S. securities markets. Equity securities include common stocks and securities convertible into common stock, such as warrants, rights, convertible bonds, debentures and convertible preferred stock. Convertible preferred stocks and debentures must be rated investment grade by an independent rating agency, such as Baa3 or

MainStay Epoch U.S. All Cap Fund

better by Moody's Investors Service Inc. or BBB- or better by Standard & Poor's when purchased, or if unrated, considered by Epoch Investment Partners, Inc., the Fund’s Subadvisor, to be of comparable quality.

Investment Process: The Subadvisor invests primarily in companies that generate increasing levels of free cash flow and have managements that allocate it effectively to create shareholder value.

The security selection process focuses on free-cash-flow analytics as opposed to traditional accounting-based metrics. The Subadvisor seeks to identify companies with a consistent, straightforward ability to both generate free cash flow and to intelligently allocate it among internal reinvestment opportunities, acquisitions, dividends, share repurchases and/or debt reduction.

The Subadvisor may sell or reduce a position in a security when it believes its investment objectives have been met or when the security is deemed less attractive relative to another security on a return/risk basis. The Subadvisor may sell or reduce a position in a security if it sees the investment thesis failing to materialize.

Although the Fund may invest in securities across all market capitalizations, it may invest a significant portion of its assets in companies of one particular market capitalization category when the Fund's Subadvisor believes such companies offer attractive opportunities. The Fund may also invest up to 15% of its net assets in foreign securities, which are generally securities issued by companies that are organized outside of the U.S. and trade primarily in markets outside the U.S.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Convertible Securities Risk: Convertible securities may be subordinate to other securities. In part, the total return for a convertible security depends upon the performance of the underlying stock into which it can be converted. Also, issuers of convertible securities are often not as strong financially as those issuing securities with higher credit ratings, are more likely to encounter financial difficulties and typically are more vulnerable to changes in the economy, such as a recession or a sustained period of rising interest rates, which could affect their ability to make interest and principal payments. If an issuer stops making interest and/or principal payments, the Fund could lose its entire investment.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Past Performance

MainStay Epoch U.S. All Cap Fund

The average annual total returns table shows how the Fund's average annual total returns (before and after taxes) for the one-, five- and ten-year periods compare to those of a broad-based securities market index. The Fund has selected the Russell 3000 ^{^®} Index as its primary benchmark. The Russell 3000 ^{^®} Index measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	14.85	%
Worst Quarter
4Q/08	-27.32	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-7.99	%	9.52	%	5.07	%
Investor Class	-8.28	%	9.08	%	4.74	%
Class B	-7.82	%	9.23	%	4.54	%
Class C	-4.50	%	9.49	%	4.54	%
Class I	-2.38	%	11.03	%	6.02	%
Return After Taxes on Distributions
Class I	-5.12	%	9.02	%	4.92	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	0.80	%	8.79	%	4.87	%
Russell 3000 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	0.48	%	12.18	%	7.35	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Epoch Investment Partners, Inc. serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Epoch Investment Partners, Inc.	David Pearl, Executive Vice President & Co-Chief Investment Officer	Since 2009
	Michael Welhoelter, Managing Director	Since 2009
	William Priest, Chief Executive Officer & Co-Chief Investment Officer	Since 2009

MainStay Epoch U.S. All Cap Fund

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay Epoch U.S. Equity Yield Fund

Investment Objective

The Fund seeks current income and capital appreciation.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.80	%	0.80	%	0.80	%	0.80	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None
	Other Expenses	0.71	%	0.82	%	0.82	%	0.71	%
	Total Annual Fund Operating Expenses	1.76	%	1.87	%	2.62	%	1.51	%
	Waivers / Reimbursements ³	(0.52	)%	(0.52	)%	(0.52	)%	(0.52	)%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ³	1.24	%	1.35	%	2.10	%	0.99	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.80% on assets up to $500 million; and 0.79% on assets in excess of $500 million.

3. New York Life Investment Management LLC ("New York Life Investments") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) for Class A shares do not exceed 1.24% of its average daily net assets. New York Life Investments will apply an equivalent waiver or reimbursement, in an equal number of basis points, to the other share classes. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 669	$ 680	$ 213	$ 313	$ 101
3 Years	$ 1,026	$ 1,058	$ 765	$ 765	$ 426
5 Years	$ 1,406	$ 1,460	$ 1,344	$ 1,344	$ 774
10 Years	$ 2,468	$ 2,580	$ 2,915	$ 2,915	$ 1,757

Portfolio Turnover

MainStay Epoch U.S. Equity Yield Fund

Principal Investment Strategies

The Fund generally invests in a diversified portfolio consisting of equity securities of U.S. companies that have a history of attractive dividend yields and positive growth in operating cash flow. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of dividend-paying U.S. companies across all market capitalizations. Generally, U.S. companies are companies organized in the U.S. that trade primarily in U.S. securities markets. The Fund may invest up to 15% of its net assets in securities of foreign companies. Generally, foreign companies are companies organized outside the U.S. and that trade primarily in non-U.S. securities markets.

Investment Process: Epoch Investment Partners, Inc., the Fund's Subadvisor, invests primarily in companies that generate increasing levels of free cash flow and have managements that allocate it effectively to create shareholder value.

The Subadvisor seeks to find and invest in companies that meet its definition of quality-companies that are free cash flow positive or becoming free cash flow positive, that are debt free or deleveraging, and that are led by strong management. The Subadvisor evaluates whether a company has a focus on shareholder yield by analyzing the company's existing cash dividend, the company's share repurchase activities, and the company's debt reduction activities as well as the likelihood of positive changes to each of these criteria, among other factors.

The Subadvisor may sell or reduce a position in a security if it sees an interruption to the dividend policy, a deterioration in fundamentals or when the security is deemed less attractive relative to another security on a return/risk basis. The Subadvisor may sell or reduce a position in a security when it believes its investment objectives have been met or if the investment thesis is failing to materialize.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Dividend-Paying Stock Risk: The Fund’s emphasis on equity and equity-related securities that produce income or other distributions subjects the Fund to the risk that such securities may fall out of favor with investors and underperform the market. Depending upon market conditions, income producing stock that meets the Fund’s investment criteria may not be widely available and/or may be highly concentrated in only a few market sectors. This may limit the ability of the Fund to produce current income while remaining fully diversified. Also, an issuer may reduce or eliminate its income payments or other distributions. The distributions received by the Fund may not qualify as income for Fund investors.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

MainStay Epoch U.S. Equity Yield Fund

Past Performance

Performance figures for Class I and Class A shares reflect the historical performance of the Institutional shares and Class P shares, respectively, of the Epoch U.S. Large Cap Equity Fund (the predecessor to the Fund, which was subject to a different fee structure, and for which Epoch Investment Partners, Inc. served as investment adviser) for periods prior to November 16, 2009. Performance data for the classes varies based on differences in their fee and expense structures . The Fund commenced operations on December 3, 2008. Class A shares (formerly Class P shares) were first offered on February 3, 2009. Performance figures for Class C and Investor Class shares, first offered November 16, 2009, reflect the historical performance of Class I shares through November 15, 2009, adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. On September 17, 2012, the Fund changed its investment objective and principal investment strategies. Performance figures for dates prior to September 17, 2012 reflect the Fund's prior investment objective and principal investment strategies. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2009-2015)


Best Quarter
2Q/09	15.85	%
Worst Quarter
3Q/11	-16.22	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		Life of Fund
Return Before Taxes
Class A	-8.06	%	8.95	%	12.82	%
Investor Class	-8.16	%	8.84	%	12.78	%
Class C	-4.42	%	9.29	%	12.89	%
Class I	-2.49	%	10.46	%	14.08	%
Return After Taxes on Distributions
Class I	-3.95	%	8.64	%	12.10	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-0.22	%	8.38	%	11.41	%
Russell 1000 ^{^®} Value Index (reflects no deductions for fees, expenses, or taxes)	-3.83	%	11.27	%	13.53	%
Russell 1000 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	0.92	%	12.44	%	15.69	%

* Reflects performance from February 3, 2009.

MainStay Epoch U.S. Equity Yield Fund

return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class I shares. After-tax returns for the other share classes may vary.

Management

New York Life Investment Management LLC serves as the Fund's Manager. Epoch Investment Partners, Inc. serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Epoch Investment Partners, Inc.	Eric Sappenfield, Managing Director	Since 2012
	Michael Welhoelter, Managing Director	Since 2009
	William Priest, Chief Executive Officer & Co-Chief Investment Officer	Since 2009
	John Tobin, Managing Director	Since 2013
	Kera Van Valen, Managing Director	Since 2013

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay Epoch U.S. Small Cap Fund

Investment Objective

The Fund seeks long-term capital appreciation by investing primarily in securities of small-cap companies.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R1		Class R2		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.85	%	0.85	%	0.85	%	0.85	%	0.85	%	0.85	%	0.85	%	0.85	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		None		0.25	%	0.50	%
	Other Expenses	0.15	%	0.41	%	0.41	%	0.41	%	0.15	%	0.25	%	0.25	%	0.25	% ³
	Total Annual Fund Operating Expenses	1.25	%	1.51	%	2.26	%	2.26	%	1.00	%	1.10	%	1.35	%	1.60	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.85% on assets up to $1 billion; and 0.80% on assets in excess of $1 billion.

3. Based on estimated amounts for the current fiscal year.

Example

The 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 (except as indicated with respect to Class B and Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R1	Class R2	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 670	$ 695	$ 229	$ 729	$ 229	$ 329	$ 102	$ 112	$ 137	$ 163
3 Years	$ 925	$ 1,001	$ 706	$ 1,006	$ 706	$ 706	$ 318	$ 350	$ 428	$ 505
5 Years	$ 1,199	$ 1,328	$ 1,210	$ 1,410	$ 1,210	$ 1,210	$ 552	$ 606	$ 739	$ 871
10 Years	$ 1,978	$ 2,252	$ 2,407	$ 2,407	$ 2,595	$ 2,595	$ 1,225	$ 1,340	$ 1,624	$ 1,900

Portfolio Turnover

Principal Investment Strategies

The Fund normally invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of U.S. companies with market capitalizations at the time of investment of $6 billion or less, which include common stocks, securities convertible into

MainStay Epoch U.S. Small Cap Fund

common stock and exchange traded funds ("ETFs") whose underlying securities are issued by small capitalization companies. The Fund may also invest in mid-cap stocks. Securities of U.S. companies are those traded primarily in the U.S. securities markets.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Exchange-Traded Fund Risk: The risks of owning an ETF generally reflect the risks of owning the underlying securities they are designed to track, although lack of liquidity in an ETF could result in it being more volatile than the underlying portfolio of securities. Disruptions in the markets for the securities underlying ETFs purchased or sold by the Fund could result in losses on the Fund's investment in ETFs. ETFs also have management fees that increase their costs versus the costs of owning the underlying securities directly.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Past Performance

MainStay Epoch U.S. Small Cap Fund

The average annual total returns table shows how the Fund's average annual total returns (before and after taxes) for the one-, five- and ten-year periods compare to those of a broad-based securities market index. The Fund has selected the Russell 2500 ^TM Index as its primary benchmark. The Russell 2500 ^TM Index measures the performance of the small to mid-cap segment of the U.S. equity universe, commonly referred to as "smid" cap. The Russell 2500 ^TM Index is a subset of the Russell 3000 ^{^®} Index. It includes approximately 2,500 of the smallest securities based on a combination of their market cap and current index membership.

Performance data for the classes varies based on differences in their fee and expense structures. Performance figures for Investor Class shares, first offered on February 28, 2008, include the historical performance of Class A shares through February 27, 2008. Performance figures for Class R1 and Class R2 shares, first offered on July 31, 2012, include the historical performance of Class I shares through July 30, 2012. Performance figures for Class R3 shares, first offered on February 29, 2016, include the historical performance of Class I shares through December 31, 2015. The performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	38.29	%
Worst Quarter
4Q/08	-25.23	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-9.40	%	7.56	%	4.50	%
Investor Class	-9.64	%	7.24	%	4.31	%
Class B	-9.82	%	7.36	%	4.12	%
Class C	-6.02	%	7.66	%	4.12	%
Class I	-3.89	%	9.05	%	5.44	%
Class R1	-3.94	%	8.95	%	5.34	%
Class R2	-4.18	%	8.68	%	5.08	%
Class R3	-4.46	%	8.40	%	4.81	%
Return After Taxes on Distributions
Class I	-3.97	%	8.98	%	5.11	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-2.13	%	7.15	%	4.30	%
Russell 2500™ Index (reflects no deductions for fees, expenses, or taxes)	-2.90	%	10.32	%	7.56	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Epoch Investment Partners, Inc. serves as the Fund's Subadvisor.

MainStay Epoch U.S. Small Cap Fund


Subadvisor	Portfolio Managers	Service Date
Epoch Investment Partners, Inc.	David Pearl, Executive Vice President & Co-Chief Investment Officer	Since 2009
	Michael Welhoelter, Managing Director	Since 2009
	Michael J. Caputo, Managing Director & Senior Research Analyst	Since February 2016

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Generally, an initial investment minimum of $1,000 applies if you invest in Investor Class, Class B, or Class C shares, $25,000 for Class A shares and $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and $50 minimum for subsequent purchases applies. Class R1 shares, Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

MainStay ICAP Equity Fund

Investment Objective

The Fund seeks total return.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I		Class R1		Class R2		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None		None		0.25	%	0.50	%
	Other Expenses	0.08	%	0.28	%	0.28	%	0.08	%	0.18	%	0.18	%	0.18	%
	Total Annual Fund Operating Expenses	1.13	%	1.33	%	2.08	%	0.88	%	0.98	%	1.23	%	1.48	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.80% on assets up to $5 billion; 0.775% on assets from $5 billion to $7.5 billion; and 0.75% on assets in excess of $7.5 billion.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I	Class R1	Class R2	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 659	$ 678	$ 211	$ 311	$ 90	$ 100	$ 125	$ 151
3 Years	$ 889	$ 948	$ 652	$ 652	$ 281	$ 312	$ 390	$ 468
5 Years	$ 1,138	$ 1,239	$ 1,119	$ 1,119	$ 488	$ 542	$ 676	$ 808
10 Years	$ 1,849	$ 2,063	$ 2,410	$ 2,410	$ 1,084	$ 1,201	$ 1,489	$ 1,768

Portfolio Turnover

Principal Investment Strategies

The Fund invests primarily in U.S. dollar-denominated equity securities of U.S. and foreign companies with market capitalizations (at the time of investment) of at least $3 billion. The Fund seeks to achieve a total return greater than the Russell 1000 ^{^®} Value Index over longer periods of time and indices comprised of value-oriented stocks over shorter periods of time.

MainStay ICAP Equity Fund

The Fund typically holds between 40 and 50 securities. Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus any borrowings for investment purposes) in common stocks and other equity securities. Other equity securities may include American Depositary Receipts, warrants, real estate investment trusts ("REITs"), preferred stocks and other securities convertible or exchangeable into common stock. The Fund intends to be virtually fully invested in equity securities at all times.

Investment Process: Institutional Capital LLC’s (“ICAP” or “Subadvisor”) investment process involves the following key components: Identify Best Values – ICAP identifies stocks that it believes offer the best values and seeks to avoid companies that are exhibiting excessive deterioration in earnings trends. ICAP also considers the dividend yield as a component of total returns when evaluating the attractiveness of a security; Identify Catalysts – ICAP focuses on what it believes the key investment variables (catalysts) are that could potentially impact the security's market value. These catalysts are primarily company-specific, such as a new product, restructuring or a change in management, but occasionally the catalyst can be thematic - dependent on macroeconomic or industry trends; Portfolio Construction – After a review of stock recommendations, ICAP's portfolio management team determines whether or not to add the stock to the portfolio or to monitor it for future purchase.

ICAP continuously monitors each security and evaluates whether to eliminate it when its price target is achieved, the catalyst becomes inoperative or another stock offers a greater opportunity.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Mid-Cap Stock Risk: Stocks of mid-cap companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects and greater spreads between their bid and ask prices than stocks of larger companies. Because these businesses frequently rely on narrower product lines and niche markets, they can suffer isolated setbacks.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Depositary Receipts Risk: Investments in depositary receipts may entail the special risks of foreign investing, including currency exchange fluctuations, government regulations, and the potential for political and economic instability.

MainStay ICAP Equity Fund

Real Estate Investment Trust Risk: Investments in REITs involve risks associated with direct ownership of real estate, including decline in property values, extended vacancies, increases in property taxes and changes in interest rates. Additionally, REITs are dependent upon management skills, may not be diversified, may experience substantial cost in the event of borrower or lessee defaults and are subject to heavy cash flow dependency.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. Performance figures for Class A, C, R1, R2 and R3 shares, first offered September 1, 2006, include the historical performance of Class I shares through August 31, 2006. Performance figures for Investor Class shares, first offered on April 29, 2008, include the historical performance of Class A shares through April 28, 2008. Performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/09	16.29	%
Worst Quarter
4Q/08	-22.43	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-6.93	%	8.68	%	5.79	%
Investor Class	-7.13	%	8.43	%	5.61	%
Class C	-3.28	%	8.84	%	5.42	%
Class I	-1.30	%	10.20	%	6.70	%
Class R1	-1.38	%	10.10	%	6.60	%
Class R2	-1.62	%	9.81	%	6.33	%
Class R3	-1.88	%	9.52	%	6.06	%
Return After Taxes on Distributions
Class I	-5.89	%	8.45	%	5.34	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	2.24	%	7.99	%	5.33	%
Russell 1000 ^{^®} Value Index (reflects no deductions for fees, expenses, or taxes)	-3.83	%	11.27	%	6.16	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%

MainStay ICAP Equity Fund

Management

New York Life Investment Management LLC serves as the Fund's Manager. Institutional Capital LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Institutional Capital LLC	Jerrold K. Senser, Chairman & Co-Chief Investment Officer*	Since 1994
	Thomas M. Cole, Senior Executive Vice President & Co-Chief Investment Officer	Since 2012
	Andrew P. Starr, Executive Vice President & Director of Research	Since 2014
	Matthew T. Swanson, Executive Vice President	Since 2014

* Jerrold K. Senser will continue to serve as a portfolio manager for the Funds until September 30, 2016.

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay ICAP Select Equity Fund

Investment Objective

The Fund seeks total return.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R1		Class R2		Class R3		Class R6
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		None		0.25	%	0.50	%	None
	Other Expenses	0.17	%	0.29	%	0.29	%	0.29	%	0.17	%	0.27	%	0.27	%	0.27	%	0.02	%
	Total Annual Fund Operating Expenses	1.22	%	1.34	%	2.09	%	2.09	%	0.97	%	1.07	%	1.32	%	1.57	%	0.82	%
	Waivers / Reimbursements ³	(0.04	)%	0.00	%	0.00	%	0.00	%	(0.07	)%	0.00	%	0.00	%	0.00	%	0.00	%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ³	1.18	%	1.34	%	2.09	%	2.09	%	0.90	%	1.07	%	1.32	%	1.57	%	0.82	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.80% on assets up to $5 billion; 0.775% on assets from $5 billion to $7.5 billion; and 0.75% on assets in excess of $7.5 billion.

3. New York Life Investment Management LLC ("New York Life Investments") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) of a class do not exceed the following percentages of its average daily net assets: Class A, 1.18%; and Class I, 0.90%. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R1	Class R2	Class R3	Class R6
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 664	$ 679	$ 212	$ 712	$ 212	$ 312	$ 92	$ 109	$ 134	$ 160	$ 84
3 Years	$ 912	$ 951	$ 655	$ 955	$ 655	$ 655	$ 302	$ 340	$ 418	$ 496	$ 262
5 Years	$ 1,180	$ 1,244	$ 1,124	$ 1,324	$ 1,124	$ 1,124	$ 529	$ 590	$ 723	$ 855	$ 455
10 Years	$ 1,943	$ 2,074	$ 2,229	$ 2,229	$ 2,421	$ 2,421	$ 1,183	$ 1,306	$ 1,590	$ 1,867	$ 1,014

MainStay ICAP Select Equity Fund

Portfolio Turnover

Principal Investment Strategies

The Fund will typically hold between 25 and 30 securities. Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus borrowings for investment purposes) in common stocks and other equity securities. Other equity securities may include American Depositary Receipts, warrants, real estate investment trusts ("REITs"), preferred stocks and other securities convertible or exchangeable into common stock.

Investment Process: Institutional Capital LLC's ("ICAP" or "Subadvisor") investment process involves the following key components: Identify Best Values – ICAP identifies stocks that it believes offer the best values and seeks to avoid companies that are exhibiting excessive deterioration in earnings trends. ICAP also considers the dividend yield as a component of total returns when evaluating the attractiveness of a security; Identify Catalysts – ICAP focuses on what it believes the key investment variables (catalysts) are that could potentially impact the security's market value. These catalysts are primarily company-specific, such as a new product, restructuring or a change in management, but occasionally the catalyst can be thematic - dependent on macroeconomic or industry trends; Portfolio Construction – After a review of stock recommendations, ICAP's portfolio management team determines whether or not to add the stock to the portfolio or to monitor it for future purchase.

ICAP continuously monitors each security and evaluates whether to eliminate it when its price target is achieved, the catalyst becomes inoperative or another stock offers a greater opportunity.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

MainStay ICAP Select Equity Fund

securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. Performance figures for Class A, C, R1, R2 and R3 shares, first offered September 1, 2006, include the historical performance of Class I shares through August 31, 2006. Performance figures for Investor Class shares, first offered on April 29, 2008, include the historical performance of Class A shares through April 28, 2008. Performance figures for Class B shares, first offered on November 13, 2009, include the historical performance of Class I shares through November 12, 2009. Performance figures for Class R6 shares, first offered on June 17, 2013, include the historical performance of Class I shares through June 16, 2013. Performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	15.65	%
Worst Quarter
4Q/08	-22.00	%

MainStay ICAP Select Equity Fund

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-9.52	%	7.42	%	5.63	%
Investor Class	-9.67	%	7.20	%	5.46	%
Class B	-8.98	%	7.32	%	5.27	%
Class C	-5.90	%	7.61	%	5.27	%
Class I	-3.98	%	8.95	%	6.53	%
Class R1	-4.08	%	8.82	%	6.40	%
Class R2	-4.32	%	8.55	%	6.14	%
Class R3	-4.62	%	8.20	%	5.84	%
Class R6	-3.90	%	8.99	%	6.55	%
Return After Taxes on Distributions
Class I	-8.92	%	6.87	%	5.03	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	0.82	%	6.98	%	5.14	%
Russell 1000 ^{^®} Value Index (reflects no deductions for fees, expenses, or taxes)	-3.83	%	11.27	%	6.16	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Institutional Capital LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Institutional Capital LLC	Jerrold K. Senser, Chairman & Co-Chief Investment Officer*	Since 1997
	Thomas M. Cole, Senior Executive Vice President & Co-Chief Investment Officer	Since 2012
	Andrew P. Starr, Executive Vice President & Director of Research	Since 2014
	Matthew T. Swanson, Executive Vice President	Since 2014

* Jerrold K. Senser will continue to serve as a portfolio manager for the Funds until September 30, 2016.

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Class R6 shares are generally available only to certain retirement plans, including Section 401(a) and 457 plans, certain 403(b)(7) plans, 401(k), profit sharing, money purchase pension and defined benefit plans and non-qualified deferred compensation plans, in each case provided that the plan trades on an omnibus level. Class R6 shares are generally not available to retail accounts. Generally, an initial investment minimum of $1,000 applies if you invest in Investor Class, Class B, or Class C shares, $25,000 for Class A shares, $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates, and $250,000 for Class R6 shares. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and a $50 minimum for subsequent purchases applies. Class R6 shares have no subsequent investment minimum. Class R1 shares, Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

MainStay ICAP Select Equity Fund

intermediary firm or your financial adviser to recommend the Fund over another investment. Ask your financial adviser or visit your financial intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class R6 shares. Class R6 shares do not carry sales commissions or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares. For additional information about compensation to financial intermediaries, please see the section entitled "Compensation to Financial Intermediary Firms" in the "Shareholder Guide" section starting on page 106 of the Prospectus.

MainStay Large Cap Growth Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R1		Class R2		Class R3		Class R6
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.60	%	0.60	%	0.60	%	0.60	%	0.60	%	0.60	%	0.60	%	0.60	%	0.60	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		None		0.25	%	0.50	%	None
	Other Expenses	0.14	%	0.19	%	0.19	%	0.19	%	0.14	%	0.24	%	0.24	%	0.24	%	0.02	%
	Total Annual Fund Operating Expenses	0.99	%	1.04	%	1.79	%	1.79	%	0.74	%	0.84	%	1.09	%	1.34	%	0.62	%
	Waivers / Reimbursements ²	(0.02	)%	(0.02	)%	(0.02	)%	(0.02	)%	(0.02	)%	(0.02	)%	(0.02	)%	(0.02	)%	(0.02	)%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ²	0.97	%	1.02	%	1.77	%	1.77	%	0.72	%	0.82	%	1.07	%	1.32	%	0.60	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.75% on assets up to $500 million; 0.725% on assets from $500 million to $750 million; 0.71% on assets from $750 million to $1 billion; 0.70% on assets from $1 billion to $2 billion; 0.66% on assets from $2 billion to $3 billion; 0.61% on assets from $3 billion to $7 billion; 0.585% on assets from $7 billion to $9 billion; and 0.575% on assets in excess of $9 billion. New York Life Investment Management LLC (“New York Life Investments”) has contractually agreed to waive a portion of its management fee so that the management fee does not exceed 0.550% on assets from $11 billion to $13 billion; and 0.525% on assets over $13 billion. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R1	Class R2	Class R3	Class R6
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 644	$ 648	$ 180	$ 680	$ 180	$ 280	$ 74	$ 84	$ 109	$ 134	$ 61
3 Years	$ 846	$ 861	$ 561	$ 861	$ 561	$ 561	$ 235	$ 266	$ 345	$ 423	$ 197
5 Years	$ 1,065	$ 1,091	$ 968	$ 1,168	$ 968	$ 968	$ 410	$ 464	$ 599	$ 732	$ 344
10 Years	$ 1,695	$ 1,749	$ 1,906	$ 1,906	$ 2,104	$ 2,104	$ 917	$ 1,035	$ 1,327	$ 1,611	$ 772

MainStay Large Cap Growth Fund

Portfolio Turnover

Principal Investment Strategies

Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in large capitalization companies, which are companies having a market capitalization in excess of $4 billion at the time of purchase. Typically, Winslow Capital Management, LLC, the Fund's Subadvisor, invests substantially all of the Fund's investable assets in domestic securities. However, the Fund is permitted to invest up to 20% of its net assets in foreign securities, which are generally securities issued by companies organized outside the U.S. and traded primarily in markets outside the U.S.

Investment Process: The Fund invests in those companies that the Subadvisor believes will provide an opportunity for achieving superior portfolio returns (i.e., returns in excess of the returns of the average stock mutual fund) over the long term. The Subadvisor seeks to invest in companies that have the potential for above-average future earnings and cash flow growth with management focused on shareholder value.

When purchasing stocks for the Fund, the Subadvisor looks for companies typically having some or all of the following attributes: addressing markets with growth opportunities; leads or gains in market share; identifiable and sustainable competitive advantages; managed by a team that can perpetuate the firm's competitive advantages; high, and preferably rising, returns on invested capital and deploys excess cash flow to enhance shareholder return.

The Subadvisor takes a "bottom-up" investment approach when selecting investments. This means it bases investment decisions on company specific factors, not general economic conditions.

Under normal market conditions, the Subadvisor employs a sell discipline pursuant to which it may sell some or all of its position in a stock when a stock becomes fully valued, the fundamental business prospects are deteriorating, or the position exceeds limits set by the Subadvisor.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Past Performance

MainStay Large Cap Growth Fund

Poor’s 500 ^{^®} Index (“S&P 500 ^{^®} Index”) as a secondary benchmark. The S&P 500 ^{^®} Index is widely regarded as the standard index for measuring large-cap U.S. stock market performance.

Performance data for the classes varies based on differences in their fee and expense structures. Performance figures for Class R3 shares which were first offered on April 28, 2006, include the historical performance of Class A shares through April 27, 2006. Performance figures for Investor Class shares, first offered on February 28, 2008, include the historical performance of Class A shares through February 27, 2008. Performance figures for Class R6 shares, first offered on June 17, 2013, include the historical performance of Class I shares through June 16, 2013. Performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class A Shares

(by calendar year 2006-2015)


Best Quarter
1Q/12	17.20	%
Worst Quarter
4Q/08	-22.57	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	0.10	%	11.12	%	7.96	%
Investor Class	-0.07	%	11.06	%	7.89	%
Class B	0.51	%	11.22	%	7.70	%
Class C	4.18	%	11.50	%	7.69	%
Class I	6.17	%	12.67	%	8.95	%
Class R1	6.16	%	12.56	%	8.86	%
Class R2	5.82	%	12.28	%	8.60	%
Class R3	5.57	%	12.01	%	8.29	%
Class R6	6.25	%	12.73	%	8.98	%
Return After Taxes on Distributions
Class A	-2.76	%	9.63	%	7.24	%
Return After Taxes on Distributions and Sale of Fund Shares
Class A	2.41	%	8.79	%	6.47	%
Russell 1000 ^{^®} Growth Index (reflects no deductions for fees, expenses, or taxes)	5.67	%	13.53	%	8.53	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%

After-tax returns are calculated using the highest individual federal marginal income tax rates in effect at the time of each distribution or capital gain or upon the sale of fund shares, and do not reflect the impact of state and local taxes. In some cases, the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class A shares. After-tax returns for the other share classes may vary.

Management

New York Life Investment Management LLC serves as the Fund's Manager. Winslow Capital Management, LLC serves as the Fund's Subadvisor.

MainStay Large Cap Growth Fund


Subadvisor	Portfolio Managers	Service Date
Winslow Capital Management, LLC	Clark J. Winslow, Founder*	Since 2005
	Justin H. Kelly, Chief Executive Officer & Chief Investment Officer	Since 2005
	Patrick M. Burton, Managing Director	Since 2013

* Clark J. Winslow will continue to serve as a portfolio manager for the Fund until December 31, 2016.

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Class R6 shares are generally available only to certain retirement plans, including Section 401(a) and 457 plans, certain 403(b)(7) plans, 401(k), profit sharing, money purchase pension and defined benefit plans and non-qualified deferred compensation plans, in each case provided that the plan trades on an omnibus level. Class R6 shares are generally not available to retail accounts. Generally, an initial investment minimum of $1,000 applies if you invest in Investor Class, Class B, or Class C shares, $25,000 for Class A shares, $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates, and $250,000 for Class R6 shares. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and a $50 minimum for subsequent purchases applies. Class R6 shares have no subsequent investment minimum. Class R1 shares, Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

If you purchase Fund shares through a financial intermediary firm (such as a broker/dealer or bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the financial intermediary firm or your financial adviser to recommend the Fund over another investment. Ask your financial adviser or visit your financial intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class R6 shares. Class R6 shares do not carry sales commissions or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares. For additional information about compensation to financial intermediaries, please see the section entitled "Compensation to Financial Intermediary Firms" in the "Shareholder Guide" section starting on page 106 of the Prospectus.

MainStay MAP Fund

Investment Objective

The Fund seeks long-term appreciation of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R1		Class R2		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.73	%	0.73	%	0.73	%	0.73	%	0.73	%	0.73	%	0.73	%	0.73	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		None		0.25	%	0.50	%
	Other Expenses	0.13	%	0.27	%	0.27	%	0.27	%	0.13	%	0.23	%	0.23	%	0.23	%
	Total Annual Fund Operating Expenses	1.11	%	1.25	%	2.00	%	2.00	%	0.86	%	0.96	%	1.21	%	1.46	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.75% on assets up to $1 billion; 0.70% on assets from $1 billion to $3 billion; and 0.675% on assets in excess of $3 billion, plus a fee for fund accounting services previously provided by New York Life Investment Management LLC ("New York Life Investments") under a separate fund accounting agreement. This addition to the management fee amounted to 0.01% of the Fund's average daily net assets, but did not result in a net increase in Total Annual Fund Operating Expenses.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R1	Class R2	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 657	$ 670	$ 203	$ 703	$ 203	$ 303	$ 88	$ 98	$ 123	$ 149
3 Years	$ 883	$ 925	$ 627	$ 927	$ 627	$ 627	$ 274	$ 306	$ 384	$ 462
5 Years	$ 1,128	$ 1,199	$ 1,078	$ 1,278	$ 1,078	$ 1,078	$ 477	$ 531	$ 665	$ 797
10 Years	$ 1,827	$ 1,978	$ 2,134	$ 2,134	$ 2,327	$ 2,327	$ 1,061	$ 1,178	$ 1,466	$ 1,746

Portfolio Turnover

MainStay MAP Fund

Principal Investment Strategies

The Fund normally invests at least 65% of its total assets in equity-type securities, including common stocks, and securities convertible into, or exchangeable for, common stocks, across all market capitalizations. The Fund primarily invests in domestic securities but may invest up to 35% of its net assets in foreign securities, which are generally securities issued by companies organized outside the U.S. and traded primarily in markets outside the U.S. Securities of foreign issuers that are represented by American Depositary Receipts or that are listed on a U.S. securities exchange or traded in the U.S. over-the-counter markets are not considered "foreign securities" for the purpose of this limitation.

The Fund employs two subadvisors, Institutional Capital LLC ("ICAP") and Markston International LLC ("Markston"), with investment processes and styles that New York Life Investment Management LLC, the Fund's Manager, believes are complementary. Each Subadvisor is responsible for managing a portion of the Fund's assets, as designated by the Manager from time to time.

Investment Process: Each Subadvisor seeks securities that are out of favor but where a catalyst exists for turning such securities into investments that the Subadvisor believes will have improved performance. The Subadvisors' investment processes and styles are as follows:

ICAP: ICAP uses a team approach with a primarily large-cap value oriented investment style. ICAP's investment process involves the following key components: Identify Best Values – ICAP identifies stocks that it believes offer the best values and seeks to avoid companies that are exhibiting excessive deterioration in earnings trends. ICAP also considers the dividend yield as a component of total returns when evaluating the attractiveness of a security; Identify Catalysts – ICAP focuses on what it believes the key investment variables (catalysts) are that could potentially impact the security's market value. These catalysts are primarily company-specific, such as a new product, restructuring or a change in management, but occasionally the catalyst can be thematic - dependent on macroeconomic or industry trends; Portfolio Construction – After a review of stock recommendations, ICAP's portfolio management team determines whether or not to add the stock to the portfolio or to monitor it for future purchase.

ICAP continuously monitors each security and evaluates whether to eliminate it when its price target is achieved, the catalyst becomes inoperative or another stock offers a greater opportunity.

Markston: Markston seeks to identify companies that it believes can emerge as market leaders, where current valuation is disconnected from positive long-term prospects and ultimately have the potential to develop premium valuations. In addition to applying existing valuation criteria like low multiples of price-to-book or cash flow, Markston looks for companies with identifiable catalysts, including insider buying, stock repurchases, management change, sale or spin-off of a division, industry consolidation, and tax loss carry-forwards. Markston generally looks for the presence of at least three of these catalysts to coincide which it believes could enhance the return potential of a stock while also helping to minimize risk. Markston also assesses the judgment, quality, and integrity of company management and the track record of capital deployment. Finally, Markston will apply a rigorous discounted cash flow model as an important valuation tool in both buy and sell decisions.

Under normal circumstances, Markston holds securities for a relatively long period of time. However, certain securities may be acquired from time to time in an effort to earn short-term profits. Markston may sell an investment when it believes the opportunity for current profits or the risk of market decline outweighs the prospect of future capital gains.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Portfolio Management Risk: The investment strategies, practices and risk analysis used by the Subadvisors may not produce the desired results. In addition, the Fund may not achieve its investment objective if the Subadvisors takes temporary positions in response to unusual or adverse market, economic or political conditions, or other unusual or abnormal circumstances.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Value Stock Risk: Value stocks may never reach what the Subadvisors believe is their full value or they may go down in value. In addition, different types of stocks tend to shift in and out of favor depending on market and economic conditions, and therefore the Fund's performance may be lower or higher than that of funds that invest in other types of equity securities.

MainStay MAP Fund

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. Performance figures for Class R3 shares, which were first offered on April 28, 2006, include the historical performance of Class A shares through April 27, 2006. Performance figures for Investor Class shares, first offered on February 28, 2008, include the historical performance of Class A shares through February 27, 2008. The performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	17.73	%
Worst Quarter
4Q/08	-22.97	%

MainStay MAP Fund

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-8.33	%	8.10	%	5.46	%
Investor Class	-8.47	%	7.91	%	5.31	%
Class B	-7.83	%	8.04	%	5.11	%
Class C	-4.64	%	8.33	%	5.11	%
Class I	-2.76	%	9.60	%	6.34	%
Class R1	-2.84	%	9.50	%	6.22	%
Class R2	-3.07	%	9.23	%	5.98	%
Class R3	-3.34	%	8.95	%	5.70	%
Return After Taxes on Distributions
Class I	-6.65	%	7.97	%	5.05	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	1.58	%	7.61	%	5.04	%
Russell 3000 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	0.48	%	12.18	%	7.35	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%

Management

New York Life Investments serves as the Fund's Manager. Institutional Capital LLC and Markston International LLC serve as the Fund's Subadvisors.


Subadvisors	Portfolio Managers	Service Date
Markston International LLC	Roger Lob, Member	Since 1987
	Christopher Mullarkey, Managing Member	Since 2002
	James Mulvey, Portfolio Manager	Since 2013
Institutional Capital LLC	Jerrold. K. Senser, Chairman & Co-Chief Investment Officer*	Since 2006
	Thomas M. Cole, Senior Executive Vice President & Co-Chief Investment Officer	Since 2012
	Andrew P. Starr, Executive Vice President & Director of Research	Since 2014
	Matthew T. Swanson, Executive Vice President	Since 2014
	J. Christian Kirtley, Executive Vice President	Since 2015

* Jerrold K. Senser will continue to serve as a portfolio manager for the Funds until September 30, 2016.

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Generally, an initial investment minimum of $1,000 applies if you invest in Investor Class, Class B, or Class C shares, $25,000 for Class A shares and $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and $50 minimum for subsequent purchases applies. Class R1 shares, Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

MainStay MAP Fund

Compensation to Financial Intermediary Firms

MainStay S&P 500 Index Fund

Investment Objective

The Fund seeks investment results that correspond to the total return performance (reflecting reinvestment of dividends) of common stocks in the aggregate, as represented by the S&P 500 ^{^®} Index.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	3.00	%	3.00	%	None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.24	%	0.24	%	0.24	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	None
	Other Expenses	0.11	%	0.32	%	0.11	%
	Total Annual Fund Operating Expenses	0.60	%	0.81	%	0.35	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.25% on assets up to $1 billion; 0.225% on assets from $1 billion to $2 billion; 0.215% on assets from $2 billion to $3 billion; and 0.20% on assets in excess of $3 billion.

Example

The 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. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class I
		Class
1 Year	$ 359	$ 380	$ 36
3 Years	$ 486	$ 551	$ 113
5 Years	$ 625	$ 736	$ 197
10 Years	$ 1,028	$ 1,272	$ 443

Portfolio Turnover

Principal Investment Strategies

The Fund normally invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in stocks as represented in the Standard & Poor's 500 ^{^®} Index ("S&P 500 ^{^®} Index”) in the same proportion, to the extent feasible.

The Fund may invest up to 20% of its total assets in options and futures contracts to maintain cash reserves, while being fully invested, to facilitate trading or to reduce transaction costs. The Fund may invest in such derivatives to try to enhance returns or reduce the risk of loss by hedging certain of its holdings.

MainStay S&P 500 Index Fund

Investment Process: Cornerstone Capital Management Holdings LLC, the Fund's Subadvisor, uses statistical techniques to determine which stocks are to be purchased or sold to replicate the S&P 500 ^{^®} Index to the extent feasible. From time to time, adjustments may be made in the Fund's holdings because of changes in the composition of the S&P 500 ^{^®} Index. The correlation between the investment performance of the Fund and the S&P 500 ^{^®} Index is expected to be at least 0.95, before charges, fees and expenses, on an annual basis. A correlation of 1.00 would indicate perfect correlation, which would be achieved when the net asset value of the Fund, including the value of its dividend and capital gains distributions, increases or decreases in exact proportion to changes in the S&P 500 ^{^®} Index.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

S&P 500 ^{^®} Index Risk: If the value of the S&P 500 ^{^®} Index declines, the net asset value of shares of the Fund will also decline. The Fund's ability to mirror the S&P 500 ^{^®} Index may be affected by, among other things, transaction costs; changes in either the composition of the S&P 500 ^{^®} Index or the number of shares outstanding for the components of the S&P 500 ^{^®} Index; and the timing and amount of contributions to, and redemptions from, the Fund by shareholders.

Past Performance

MainStay S&P 500 Index Fund

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	15.82	%
Worst Quarter
4Q/08	-21.95	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-2.20	%	11.25	%	6.38	%
Investor Class	-2.33	%	11.13	%	6.32	%
Class I	1.07	%	12.20	%	7.00	%
Return After Taxes on Distributions
Class I	-0.22	%	11.63	%	6.58	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	1.69	%	9.76	%	5.67	%
S&P 500 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	1.38	%	12.57	%	7.31	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management Holdings LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Cornerstone Capital Management Holdings LLC	Francis J. Ok, Senior Vice President	Since 1996
	Lee Baker, Vice President	Since 2008

How to Purchase and Sell Shares

MainStay S&P 500 Index Fund

Tax Information

Compensation to Financial Intermediary Firms

MainStay U.S. Equity Opportunities Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	1.00	%	1.00	%	1.00	%	1.00	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None
	Other Expenses
	Dividend Expense on Securities Sold Short	0.14	%	0.14	%	0.14	%	0.14	%
	Broker Fees and Charges on Short Sales	0.91	%	0.91	%	0.91	%	0.91	%
	Remainder of Other Expenses	0.07	%	0.20	%	0.20	%	0.07	%
	Total Other Expenses	1.12	%	1.25	%	1.25	%	1.12	%
	Acquired (Underlying) Fund Fees and Expenses	0.05	%	0.05	%	0.05	%	0.05	%
	Total Annual Fund Operating Expenses	2.42	%	2.55	%	3.30	%	2.17	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 782	$ 794	$ 333	$ 433	$ 220
3 Years	$ 1,263	$ 1,300	$ 1,015	$ 1,015	$ 679
5 Years	$ 1,770	$ 1,831	$ 1,722	$ 1,722	$ 1,164
10 Years	$ 3,155	$ 3,277	$ 3,595	$ 3,595	$ 2,503

Portfolio Turnover

Principal Investment Strategies

The Fund normally invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in U.S. equity securities. The Fund primarily invests in common stocks of well-established U.S. companies, primarily those with large capitalizations, that are in the Russell 1000 ^{^®}

MainStay U.S. Equity Opportunities Fund

Index (the “Index”) or have market capitalizations that are similar to companies in that Index (which ranged from $259.34 million to $583.61 billion as of December 31, 2015). The Fund may also invest in equity securities with market capitalizations outside of the range of the Index.

The Fund may hold long and short positions. The Fund generally will hold long positions, either directly or through equity-related derivatives (such as futures, options, and total return swaps), which may total up to 140% of the Fund's net assets, and short positions, either directly or through equity-related derivatives (such as futures, options, and total return swaps), which may total up to 40% of the Fund's net assets. The proceeds from the short sales may be used to purchase all or a portion of the additional long positions. The long and short positions held by the Fund may vary over time as market opportunities develop. The Fund may invest in swaps, futures, forwards and options. The Fund may also invest in real estate investment trusts (“REITs”). REIT’s are pooled investment vehicles that invest primarily in either real estate or real estate-related loans.

The Subadvisor believes that the use of both long and short positions better enables the Fund to seek to produce returns that are in excess of the Index. The Fund takes long positions primarily in securities that the Fund has identified as attractive and short positions in securities that the Fund has identified as overvalued or poised for underperformance.

Investment Process: Using an objective, disciplined and broadly-applied process, Cornerstone Capital Management Holdings LLC, the Fund’s Subadvisor, selects securities that it believes have the most potential to appreciate, while seeking to limit exposure to risk. The Subadvisor also seeks to control the Fund's exposure to risk through, among other things, sector and industry constraints. These constraints may limit the Fund’s ability to overweight or underweight particular sectors or industries relative to the Index. The Subadvisor will further seek to reduce risk by diversifying the Fund's portfolio over a large number of securities. The Subadvisor, seeks to construct a broadly-diversified portfolio across sectors and industries using quantitative analysis to identify undervalued and overvalued securities that the Subadvisor believes have a high probability of providing total returns greater than the Index. The Subadvisor uses a quantitative model that is designed to evaluate individual issuers and securities across valuation, momentum and market sentiment criteria. The Subadvisor also conducts a qualitative review of the results of the quantitative analysis. In certain cases, the Subadvisor may deviate from positions or weightings suggested by the quantitative analysis to account for events and conditions that may not be quantifiable by the analysis, such as company-specific and market events. The Subadvisor regularly evaluates the quantitative model and, from time to time, may adjust the metrics and data underlying its quantitative analysis for a variety reasons, including, without limitation, to account for changing market, financial or economic conditions.

Based on quantitative and qualitative analysis, the Fund takes long positions in, or overweights relative to the Index, equity securities that the Subadvisor believes have a high probability of providing a total return greater than the Index. Also, the Fund will underweight or sell short securities that it believes are likely to underperform. This means that the Fund may sell a security that it does not own, which it may do, for example, when the Subadvisor believes that the value of the security will decline.

Short sales are intended to allow the Fund to earn returns on securities that it believes will underperform the Index and also are intended to allow the Fund to maintain additional long positions while keeping the Fund’s net exposure to the market between 80% and 100%, similar to that of a “long only” strategy.

In unusual market conditions, the Fund may invest all or a portion of its assets in equity securities of U.S. issuers, investment grade notes and bonds, cash and cash equivalents.

The Fund may sell a security, or reduce or eliminate a short position, if it no longer believes the security will contribute to meeting the investment objective of the Fund, if better opportunities are identified, or if it determines the initial investment expectations are not being met.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Portfolio Management Risk: The investment strategies, practices and risk analysis used by the Subadvisor may not produce the desired results. In addition, the Fund may not achieve its investment objective if the Subadvisor takes temporary positions in response to unusual or adverse market, economic or political conditions, or other unusual or abnormal circumstances. The quantitative model used by the Subadvisor, and the securities selected based on the model, may not perform as expected. The quantitative model may contain certain errors in construction and implementation that may adversely affect the Fund’s performance. In addition, the Fund’s performance will reflect, in part, the Subadvisor’s ability to make active qualitative decisions and timely adjust the quantitative model, including the model’s underlying metrics and data.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

MainStay U.S. Equity Opportunities Fund

Short Selling Risk: If a security sold short increases in price, the Fund may have to cover its short position at a higher price than the short sale price, resulting in a loss. The Fund may have substantial short positions and must borrow those securities to make delivery to the buyer. The Fund may not be able to borrow a security that it needs to deliver or it may not be able to close out a short position at an acceptable price and may have to sell related long positions before it had intended to do so. Thus, the Fund may not be able to successfully implement its short sale strategy due to limited availability of desired securities or for other reasons. The Fund also may be required to pay a premium and other transaction costs, which would increase the cost of the security sold short. The amount of any gain will be decreased, and the amount of any loss increased, by the amount of the premium, dividends, interest or expenses the Fund may be required to pay in connection with the short sale.

Until the Fund replaces a borrowed security, it is required to maintain a segregated account of cash or liquid assets with the Fund's custodian to cover the Fund's short position. Generally, securities held in a segregated account cannot be sold unless they are replaced with other liquid assets. The Fund's ability to access the pledged collateral may also be impaired in the event the broker fails to comply with the terms of the contract. In such instances the Fund may not be able to substitute or sell the pledged collateral. Additionally, the Fund must maintain sufficient liquid assets (less any additional collateral held with the broker), marked-to-market daily, to cover the short sale obligations. This may limit the Fund's investment flexibility, as well as its ability to meet redemption requests or other current obligations. Because losses on short sales arise from increases in the value of the security sold short, such losses are theoretically unlimited. By contrast, a loss on a long position arises from decreases in the value of the security and is limited by the fact that a security's value cannot go below zero.

By investing the proceeds received from selling securities short, the Fund could be deemed to be employing a form of leverage, which creates special risks. The use of leverage may increase the Fund's exposure to long positions and make any change in the Fund's net asset value greater than it would be without the use of leverage. This could result in increased volatility of returns. There is no guarantee that the Fund will leverage its portfolio, or if it does, that the Fund's leveraging strategy will be successful or that it will produce a higher return on an investment.

Regulatory authorities in the U.S. or other countries may prohibit or restrict the ability of the Fund to fully implement its short-selling strategy, either generally or with respect to certain industries or countries, which may impact the Fund’s ability to fully implement its investment strategies.

Regulatory Risk: The Fund as well as the issuers of the securities and other instruments in which the Fund invests are subject to considerable regulation and the risks associated with adverse changes in law and regulation governing their operations. For example, regulatory authorities in the United States or other countries may prohibit or restrict the ability of the Fund to fully implement its short-selling strategy, either generally or with respect to certain industries or countries, which may impact the Fund's ability to fully implement its investment strategies. In addition, regulatory authorities are in the process of adopting and implementing regulations governing derivatives markets, the ultimate impact of the regulations remains unclear and may adversely affect, among other things, the availability, value or performance of derivatives.

Derivatives Risk: Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index. Derivative strategies may expose the Fund to greater risk and often involve leverage, which may exaggerate a loss, potentially causing the Fund to lose more money than it would have lost had it invested in the underlying instrument. Derivatives may be difficult to sell, unwind or value. Derivatives may also be subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable to honor its contractual obligations to the Fund. Swap transactions tend to shift the Fund's investment exposure from one type of investment to another, and therefore entail the risk that a party will default on its payment obligations to the Fund. Futures may be more volatile than direct investments in the instrument underlying the contract, and may not correlate perfectly to the underlying instrument. Futures and other derivatives also may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. Due to fluctuations in the price of the underlying security, the Fund may not be able to profitably exercise an option and may lose its entire investment in an option. Forward commitments entail the risk that the instrument may be worth less when it is issued or received than the price the Fund agreed to pay when it made the commitment. The use of foreign currency forwards may result in currency exchange losses due to fluctuations in currency exchange rates or an imperfect correlation between portfolio holdings denominated in a particular currency and the forward contracts entered into by the Fund. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Derivatives may also increase the expenses of the Fund.

MainStay U.S. Equity Opportunities Fund

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. The Fund commenced operations on June 29, 2007. Performance figures for Investor Class shares, first offered on February 28, 2008, include the historical performance of Class A shares through February 27, 2008, adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for this newer share class would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2008-2015)


Best Quarter
3Q/09	15.03	%
Worst Quarter
4Q/08	-22.09	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		Life of Fund
Return Before Taxes
Class A	-0.66	%	13.68	%	4.72	%
Investor Class	-0.72	%	13.46	%	4.52	%
Class C	3.18	%	13.86	%	4.42	%
Class I	5.41	%	15.24	%	5.66	%
Return After Taxes on Distributions
Class I	4.90	%	12.03	%	3.89	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	3.50	%	11.57	%	4.11	%
Russell 1000 ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	0.92	%	12.44	%	6.07	%

MainStay U.S. Equity Opportunities Fund

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management Holdings LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Cornerstone Capital Management Holdings LLC	Mona Patni, Vice President	Since 2007
	Andrew Ver Planck, Senior Vice President	Since 2013
	Migene Kim, Vice President	Since 2014

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay Emerging Markets Opportunities Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	1.10	%	1.10	%	1.10	%	1.10	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None
	Other Expenses
	Broker Fees and Charges on Short Sales	0.01	%	0.01	%	0.01	%	0.01	%
	Remainder of Other Expenses	0.51	%	0.75	%	0.75	%	0.51	%
	Total Other Expenses	0.52	%	0.76	%	0.76	%	0.52	%
	Acquired (Underlying) Fund Fees and Expenses	0.09	%	0.09	%	0.09	%	0.09	%
	Total Annual Fund Operating Expenses	1.96	%	2.20	%	2.95	%	1.71	%
	Waivers / Reimbursements ²	(0.26	)%	(0.26	)%	(0.26	)%	(0.26	)%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ²	1.70	%	1.94	%	2.69	%	1.45	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. New York Life Investment Management LLC ("New York Life Investments") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) for Class A shares do not exceed 1.60% of its average daily net assets. New York Life Investments will apply an equivalent waiver or reimbursement, in an equal number of basis points, to the other share classes. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 713	$ 736	$ 272	$ 372	$ 148
3 Years	$ 1,108	$ 1,177	$ 888	$ 888	$ 513
5 Years	$ 1,526	$ 1,642	$ 1,530	$ 1,530	$ 904
10 Years	$ 2,690	$ 2,925	$ 3,252	$ 3,252	$ 1,998

Portfolio Turnover

MainStay Emerging Markets Opportunities Fund

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 185% of the average value of its portfolio.

Principal Investment Strategies

Under normal conditions, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities issued by entities in, or tied economically to, emerging markets. The Fund may invest in securities issued by entities without regard to market capitalization, including smaller companies. These securities may be denominated in U.S. or non-U.S. currencies.

Cornerstone Capital Management Holdings LLC, the Fund’s Subadvisor, has discretion to determine the countries considered to be emerging market countries, taking into consideration factors such as the development of a country’s financial and capital markets, inclusion of a country in an index representative of emerging markets, and country classifications used by the World Bank, International Monetary Fund or United Nations.

The Subadvisor determines that an investment is tied economically to an emerging market if such investment satisfies either of the following conditions: (i) the issuer’s primary trading market is in an emerging market, or (ii) the investment is included in an index representative of emerging markets.

The Subadvisor believes that the use of both long and short positions better enables the Fund to seek to produce returns that are in excess of the MSCI Emerging Markets Index (the “Index”). The Fund takes long positions primarily in securities that the Fund has identified as attractive and short positions in such securities that the Fund has identified as overvalued or poised for underperformance.

The Fund may invest up to 20% of its net assets in securities that are not issued by entities in, or tied economically to, emerging markets. These investments may include equity securities, U.S. government and agency securities and short-term investments such as cash and cash equivalents. The Fund may also invest in American Depositary Receipts.

Investment Process : Using an objective, disciplined and broadly-applied process, Cornerstone Capital Management Holdings LLC, the Fund’s Subadvisor, selects securities that it believes have the most potential to appreciate, while seeking to limit exposure to risk. The Subadvisor also seeks to control the Fund's exposure to risk through, among other things, country, sector and industry constraints. These constraints may limit the Fund’s ability to overweight or underweight particular sectors or industries relative to the Index. The Subadvisor will further seek to reduce risk by diversifying the Fund's portfolio over a large number of securities. The Subadvisor, seeks to construct a broadly-diversified portfolio across countries, sectors and industries using quantitative analysis to identify undervalued and overvalued securities that the Subadvisor believes have a high probability of providing total returns greater than the Index. The Subadvisor uses a quantitative model that is designed to evaluate individual issuers and securities across valuation, momentum and market sentiment criteria. The Subadvisor also conducts a qualitative review of the results of the quantitative analysis. In certain cases, the Subadvisor may deviate from positions or weightings suggested by the quantitative analysis to account for events and conditions that may not be quantifiable by the analysis, such as company-specific and market events. The Subadvisor regularly evaluates the quantitative model and, from time to time, the Subadvisor may adjust the metrics and data underlying its quantitative analysis for a variety reasons, including, without limitation, to account for changing market, financial or economic conditions.

In unusual market conditions, the Fund may invest all or a portion of its assets in equity securities of U.S. issuers, investment grade notes and bonds, cash and cash equivalents.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

MainStay Emerging Markets Opportunities Fund

time, markets may experience periods of stress for potentially prolonged periods that may result in (i) increased market volatility; (ii) reduced market liquidity; and (iii) increased redemptions. Such conditions may add significantly to the risk of volatility in the net asset value of the Fund's shares.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Emerging Markets Risk: The risks related to investing in foreign securities are generally greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets. The risks of investing in emerging markets include the risks of illiquidity, increased price volatility, smaller market capitalizations, less government regulation, less extensive and less frequent accounting, financial and other reporting requirements, risk of loss resulting from problems in share registration and custody, substantial economic and political disruptions and the nationalization of foreign deposits or assets.

Until the Fund replaces a borrowed security, it is required to maintain a segregated account of cash or liquid assets with the Fund's custodian to cover the Fund's short position. Generally, securities held in a segregated account cannot be sold unless they are replaced with other liquid assets. The Fund's ability to access the pledged collateral may also be impaired in the event the broker fails to comply with the terms of the contract. In such instances the Fund may not be able to substitute or sell the pledged collateral. Additionally, the Fund must maintain sufficient liquid assets (less any additional collateral pledged to the broker), marked-to-market daily, to cover the short sale obligations. This may limit the Fund's investment flexibility, as well as its ability to meet redemption requests or other current obligations. Because losses on short sales arise from increases in the value of the security sold short, such losses are theoretically unlimited. By contrast, a loss on a long position arises from decreases in the value of the security and is limited by the fact that a security's value cannot go below zero.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates.

MainStay Emerging Markets Opportunities Fund

investor perceptions or lack of market participants. The lack of an active trading market may make it difficult to obtain an accurate price for a security. If market conditions or issuer specific developments make it difficult to value securities, the Fund may value these securities using more subjective methods, such as fair value pricing. In such cases, the value determined for a security could be different than the value realized upon such security's sale. As a result, an investor could pay more than the market value when buying Fund shares or receive less than the market value when selling Fund shares. This could affect the proceeds of any redemption or the number of shares an investor receives upon purchase. Liquidity risk may also refer to the risk that the Fund may not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, unusually high volume of redemptions, or other reasons. To meet redemption requests or to raise cash to pursue other investment opportunities, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions, which may adversely affect the Fund.

Derivatives Risk: Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index. Derivative strategies may expose the Fund to greater risk and often involve leverage, which may exaggerate a loss, potentially causing the Fund to lose more money than it would have lost had it invested in the underlying instrument. Derivatives may be difficult to sell, unwind or value. Derivatives may also be subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable to honor its contractual obligations to the Fund. Swap transactions tend to shift the Fund's investment exposure from one type of investment to another, and therefore entail the risk that a party will default on its payment obligations to the Fund. Eventually, many, but not all, swaps will be exchange-traded and centrally cleared. Although these changes are expected to decrease credit risk involved in bi-laterally negotiated contracts, exchange-trading and central clearing will not make these investments risk free. Forward commitments entail the risk that the instrument may be worth less when it is issued or received than the price the Fund agreed to pay when it made the commitment. The use of foreign currency forwards may result in currency exchange losses due to fluctuations in currency exchange rates or an imperfect correlation between portfolio holdings denominated in a particular currency and the forward contracts entered into by the Fund. Many non-deliverable foreign currency forwards will also eventually be exchange-traded and subject to central clearing. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Due to fluctuations in the price of the underlying security, the Fund may not be able to profitably exercise an option and may lose its entire investment in an option. Futures may be more volatile than direct investments in the instrument underlying the contract, and may not correlate perfectly to the underlying instrument. Futures and other derivatives also may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. Derivatives may also increase the expenses of the Fund.

Regional Focus Risk: At times, the Fund might increase the relative emphasis of its investments in a particular region or county. Stocks of issuers in a particular region or country might be affected by changes in economic conditions or by changes in government regulations, availability of basic resources or supplies, or other events that affect that region or country more than others. If the Fund has a greater emphasis on investments in a particular region or country, it may be subject to greater risks from adverse events than a fund that is more geographically diversified.

Lending of Portfolio Securities Risk: Securities lending involves the risk that that the Fund may lose money in the event that the borrower fails to return the securities to the Fund in a timely manner or at all. The Fund also could lose money in the event of a decline in the value of the collateral provided for loaned securities. The Fund could also lose its rights in the collateral should the borrower fail financially. Moreover, any decline in the value of a security that occurs while the security is out on loan would continue to be borne by the Fund.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. The Fund commenced operations on November 15, 2013. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

MainStay Emerging Markets Opportunities Fund

Annual Returns, Class I Shares

(by calendar year 2014-2015)


Best Quarter
2Q/14	8.01	%
Worst Quarter
3Q/15	-18.04	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		Life of Fund
Return Before Taxes
Class A	-20.76	%	-11.24	%
Investor Class	-20.94	%	-11.43	%
Class C	-17.75	%	-9.70	%
Class I	-15.94	%	-8.62	%
Return After Taxes on Distributions
Class I	-16.29	%	-9.60	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-8.17	%	-6.65	%
MSCI Emerging Markets Index (reflects no deductions for fees, expenses, or taxes)	-14.92	%	-8.34	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management Holdings LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Cornerstone Capital Management Holdings LLC	Andrew Ver Planck, Senior Vice President	Since 2013
	Jeremy Roethel, Vice President	Since 2013

How to Purchase and Sell Shares

MainStay Emerging Markets Opportunities Fund

Tax Information

Compensation to Financial Intermediary Firms

MainStay Epoch Global Choice Fund

Investment Objective

The Fund seeks long-term capital appreciation.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	1.00	%	1.00	%	1.00	%	1.00	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None
	Other Expenses	0.09	%	0.33	%	0.33	%	0.09	%
	Total Annual Fund Operating Expenses	1.34	%	1.58	%	2.33	%	1.09	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 679	$ 702	$ 236	$ 336	$ 111
3 Years	$ 951	$ 1,021	$ 727	$ 727	$ 347
5 Years	$ 1,244	$ 1,363	$ 1,245	$ 1,245	$ 601
10 Years	$ 2,074	$ 2,325	$ 2,666	$ 2,666	$ 1,329

Portfolio Turnover

Principal Investment Strategies

The Fund generally invests in a portfolio consisting of equity securities of companies across all market capitalizations. Under normal circumstances, the Fund will invest at least 80% of its net assets in equity securities of companies located throughout the world. U.S. equity securities include common stocks and depositary receipts. Under normal market conditions, the Fund will invest a significant amount of its assets (at least 40%, unless Epoch Investment Partners, Inc., the Fund's Subadvisor, deems market conditions to be unfavorable, in which case the Fund will invest at least 30%) in securities of foreign companies. Generally, foreign companies are companies organized outside the U.S. and that trade primarily in non-U.S. securities markets. The Fund will normally invest in companies located in at least three countries outside of the U.S. Although the Fund

MainStay Epoch Global Choice Fund

may invest in securities across all market capitalizations, it may at any given time invest a significant portion of its assets in companies of one particular market capitalization category when the Fund's Subadvisor believes such companies offer attractive opportunities.

The Fund typically holds between 20 and 35 securities, which may be denominated in both U.S. and non-U.S. currencies.

Investment Process: The Subadvisor invests primarily in companies that generate increasing levels of free cash flow and have managements that allocate it effectively to create shareholder value.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates. These risks may be greater with respect to securities of companies that conduct their business activities in emerging markets or whose securities are traded principally in emerging markets.

Liquidity and Valuation Risk: Securities purchased by the Fund may be illiquid at the time of purchase or liquid at the time of purchase and subsequently become illiquid due to, among other things, events relating to the issuer of the securities, market events, economic conditions, investor perceptions or lack of market participants. The lack of an active trading market may make it difficult to obtain an accurate price for a security. If market conditions or issuer specific developments make it difficult to value securities, the Fund may value these securities using more subjective methods, such as fair value pricing. In such cases, the value determined for a security could be different than the value realized upon such security's sale. As a result, an investor could pay more than the market value when buying Fund shares or receive less than the market value when selling Fund shares. This could affect the proceeds of any redemption or the number of shares an investor receives upon purchase. Liquidity risk may also refer to the risk that the Fund may not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, unusually high volume of redemptions, or other reasons. To meet redemption requests or to raise cash to pursue other investment opportunities, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions, which may adversely affect the Fund.

MainStay Epoch Global Choice Fund

Past Performance

Performance figures for Class I and Class A shares reflect the historical performance of the Institutional shares and Class P shares, respectively, of the Epoch U.S. All Cap Equity Fund (the predecessor to the Fund, which was subject to a different fee structure, and had different principal investment strategies and investment process, and for which Epoch Investment Partners, Inc. served as investment adviser) for periods prior to November 16, 2009. Performance data for the classes varies based on differences in their fee and expense structures . Class A shares (formerly Class P shares) were first offered on August 15, 2006. Performance figures for Class C and Investor Class shares, first offered November 16, 2009, reflect the historical performance of Class I shares through November 15, 2009, adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	15.66	%
Worst Quarter
4Q/08	-23.70	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-6.93	%	6.73	%	N/A	%
Investor Class	-7.14	%	6.49	%	3.61	%
Class C	-3.44	%	6.88	%	3.62	%
Class I	-1.29	%	8.20	%	4.80	%
Return After Taxes on Distributions
Class I	-2.53	%	7.23	%	4.16	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	0.30	%	6.49	%	3.82	%
MSCI World Index (reflects no deductions for fees, expenses, or taxes)	-0.87	%	7.59	%	4.98	%

* Reflects performance from August 15, 2006.

MainStay Epoch Global Choice Fund

Management

New York Life Investment Management LLC serves as the Fund's Manager. Epoch Investment Partners, Inc. serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Epoch Investment Partners, Inc.	William Priest, Chief Executive Officer & Co-Chief Investment Officer	Since 2009
	Michael Welhoelter, Managing Director	Since 2009
	David Pearl, Executive Vice President & Co-Chief Investment Officer	Since 2011
	William J. Booth, Managing Director	Since 2014

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay Epoch Global Equity Yield Fund

Investment Objective

The Fund seeks a high level of income. Capital appreciation is a secondary investment objective.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I		Class R2		Class R3		Class R6
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	0.70	%	0.70	%	0.70	%	0.70	%	0.70	%	0.70	%	0.70	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None		0.25	%	0.50	%	None
	Other Expenses	0.14	%	0.16	%	0.16	%	0.14	%	0.24	%	0.24	% ²	0.04	%
	Total Annual Fund Operating Expenses	1.09	%	1.11	%	1.86	%	0.84	%	1.19	%	1.44	%	0.74	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. Based on estimated amounts for the current fiscal year.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I	Class R2	Class R3	Class R6
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 655	$ 657	$ 189	$ 289	$ 86	$ 121	$ 147	$ 76
3 Years	$ 878	$ 883	$ 585	$ 585	$ 268	$ 378	$ 456	$ 237
5 Years	$ 1,118	$ 1,128	$ 1,006	$ 1,006	$ 466	$ 654	$ 787	$ 411
10 Years	$ 1,806	$ 1,827	$ 2,180	$ 2,180	$ 1,037	$ 1,443	$ 1,724	$ 918

Portfolio Turnover

Principal Investment Strategies

The Fund generally invests in a diversified portfolio consisting of equity securities of companies located throughout the world, including the U.S., that have a history of attractive dividend yields and positive growth in operating cash flow. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of dividend-paying companies across all market capitalizations. Equity securities include common stocks and depositary receipts. The Fund may invest up to 20% of its net assets in securities

MainStay Epoch Global Equity Yield Fund

issued by companies located in emerging markets as determined by the Fund's Subadvisor, Epoch Investment Partners, Inc., when they believe those securities represent attractive investment opportunities. Securities held by the Fund may be denominated in both U.S. and non-U.S. currencies. Under normal market conditions, the Fund will invest a significant amount of its net assets (at least 40%, unless the Subadvisor deems market conditions to be unfavorable, in which case the Fund will invest at least 30%) in securities of foreign companies. Generally, foreign companies are companies organized outside the U.S. and that trade primarily in non-U.S. securities markets. The Fund will normally invest in companies located in at least three countries outside of the U.S. The Fund seeks a dividend yield greater than the dividend yield of the MSCI World Index.

Investment Process: The Subadvisor invests primarily in companies that generate increasing levels of free cash flow and have managements that allocate it effectively to create shareholder value.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates.

MainStay Epoch Global Equity Yield Fund

security. If market conditions or issuer specific developments make it difficult to value securities, the Fund may value these securities using more subjective methods, such as fair value pricing. In such cases, the value determined for a security could be different than the value realized upon such security's sale. As a result, an investor could pay more than the market value when buying Fund shares or receive less than the market value when selling Fund shares. This could affect the proceeds of any redemption or the number of shares an investor receives upon purchase. Liquidity risk may also refer to the risk that the Fund may not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, unusually high volume of redemptions, or other reasons. To meet redemption requests or to raise cash to pursue other investment opportunities, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions, which may adversely affect the Fund.

Past Performance

Performance figures for Class I and Class A shares reflect the historical performance of the Institutional shares and Class P shares, respectively, of the Epoch Global Equity Shareholder Yield Fund (the predecessor to the Fund, which was subject to a different fee structure, and for which Epoch Investment Partners, Inc. served as investment adviser) for periods prior to November 16, 2009. Performance data for the classes varies based on differences in their fee and expense structures . Class A shares (formerly Class P shares) were first offered on August 2, 2006. Performance figures for Class C and Investor Class shares, first offered November 16, 2009, reflect the historical performance of Class I shares through November 15, 2009, adjusted for differences in certain fees and expenses. Performance figures for Class R6 shares, first offered on June 17, 2013, include the historical performance of Class I shares from December 27, 2005 through June 16, 2013. Performance figures for Class R2 shares, first offered on February 28, 2014, include the historical performance of Class I shares from December 27, 2005 through February 27, 2014 adjusted for differences in certain expenses and fees. Performance figures for Class R3 shares, first offered on February 29, 2016, include the historical performance of Class I shares through December 31, 2015. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
3Q/10	14.30	%
Worst Quarter
4Q/08	-15.14	%

MainStay Epoch Global Equity Yield Fund

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-10.10	%	6.62	%	N/A	%
Investor Class	-10.12	%	6.60	%	5.66	%
Class C	-6.46	%	7.02	%	5.42	%
Class I	-4.58	%	8.10	%	6.47	%
Class R2	-4.90	%	7.73	%	6.10	%
Class R3	-5.15	%	7.45	%	5.83	%
Class R6	-4.52	%	8.15	%	6.49	%
Return After Taxes on Distributions
Class I	-6.40	%	7.01	%	5.27	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-0.71	%	6.52	%	5.05	%
MSCI World Index (reflects no deductions for fees, expenses, or taxes)	-0.87	%	7.59	%	4.98	%

* Reflects performance from August 2, 2006.

Management

New York Life Investment Management LLC serves as the Fund's Manager. Epoch Investment Partners, Inc. serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Epoch Investment Partners, Inc.	Eric Sappenfield, Managing Director	Since 2009
	Michael Welhoelter, Managing Director	Since 2009
	William Priest, Chief Executive Officer & Co-Chief Investment Officer	Since 2009
	Kera Van Valen, Managing Director	Since 2014
	John M. Tobin, Managing Director	Since 2014

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Class R6 shares are generally available only to certain retirement plans, including Section 401(a) and 457 plans, certain 403(b)(7) plans, 401(k), profit sharing, money purchase pension and defined benefit plans and non-qualified deferred compensation plans, in each case provided that the plan trades on an omnibus level. Class R6 shares are generally not available to retail accounts. Generally, an initial investment minimum of $2,500 applies if you invest in Investor Class or Class C shares, $25,000 for Class A shares, $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates, and $250,000 for Class R6 shares. A subsequent investment minimum of $50 applies to investments in Investor Class and Class C shares. These initial investment minimum and subsequent purchase amounts also apply to Investor Class or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan. Class R6 shares have no subsequent investment minimum. Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

MainStay Epoch Global Equity Yield Fund

intermediary firm's website for more information. No compensation, administrative payments, sub-transfer agency payments or service payments are paid to broker/dealers or other financial intermediaries from Fund assets or the Distributor’s or an affiliate’s resources on sales of or investments in Class R6 shares. Class R6 shares do not carry sales commissions or pay Rule 12b-1 fees, or make payments to financial intermediaries to assist in, or in connection with, the sale of the Fund’s shares. For additional information about compensation to financial intermediaries, please see the section entitled "Compensation to Financial Intermediary Firms" in the "Shareholder Guide" section starting on page 106 of the Prospectus.

MainStay Epoch International Small Cap Fund

Investment Objective

The Fund seeks long-term capital appreciation.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	1.10	%	1.10	%	1.10	%	1.10	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None
	Other Expenses	0.33	%	0.56	%	0.56	%	0.33	%
	Total Annual Fund Operating Expenses	1.68	%	1.91	%	2.66	%	1.43	%
	Waivers / Reimbursements ²	(0.05	)%	(0.05	)%	(0.05	)%	(0.05	)%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ²	1.63	%	1.86	%	2.61	%	1.38	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. New York Life Investment Management LLC (“New York Life Investments”) has contractually agreed to waive a portion of its management fee so that the management fee does not exceed 1.05%. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 707	$ 729	$ 264	$ 364	$ 140
3 Years	$ 1,046	$ 1,112	$ 822	$ 822	$ 448
5 Years	$ 1,408	$ 1,520	$ 1,406	$ 1,406	$ 777
10 Years	$ 2,424	$ 2,656	$ 2,989	$ 2,989	$ 1,709

Portfolio Turnover

Principal Investment Strategies

The Fund seeks to achieve its investment objective by investing in a diversified portfolio consisting mostly of equity securities of companies located outside the U.S., which may include companies in emerging markets. Under normal circumstances, the Fund will invest at least 80% of its assets

MainStay Epoch International Small Cap Fund

(net assets plus any borrowings for investment purposes) in the equity securities of "small capitalization" companies located outside of the U.S. Equity securities include common stock, depository receipts, and securities convertible into common stock, such as warrants, rights, convertible bonds, debentures and convertible preferred stocks. Typically, a company is considered to be a "small capitalization" company if it has, at the time of investment, a market capitalization that is below $5 billion or in the range of the companies included in the MSCI World Ex U.S. Small Cap Index (which ranged from approximately $58.37 million to $7.95 billion as of December 31, 2015). The Fund will normally invest in companies located in at least three countries outside of the U.S. A company is considered to be located in a particular country if it: (i) is organized under the laws of the country; (ii) has securities which are principally traded on a stock exchange in the country; (iii) derives at least 50% of its revenues from goods produced or sold, investments made, or services performed in the country; or (iv) maintains at least 50% of its assets in the country. Although the Fund is not subject to any additional geographic requirement, the Fund expects that the majority of its investments will be in the developed markets of Canada, Western Europe, Asia and Australasia. The Fund may invest more than 25% of its net assets in securities of companies located in each of the United Kingdom and Japan. In order to gain additional exposure to the international, small capitalization market, the Fund may also invest in exchange traded funds ("ETFs"), whose underlying securities are issued by international small capitalization companies.

Investment Process: Epoch Investment Partners, Inc., the Fund's Subadvisor, invests primarily in companies that generate free cash flow and have managements that allocate it effectively to create shareholder value.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Small-Cap Stock Risk: Stocks of small capitalization companies may be subject to greater price volatility, significantly lower trading volumes, cyclical, static or moderate growth prospects, and greater spreads between bid and ask prices than stocks of larger companies. Small-capitalization companies may be more vulnerable to adverse business or market developments.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates.

MainStay Epoch International Small Cap Fund

investment opportunities, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions, which may adversely affect the Fund.

Past Performance

Performance figures for Class I and Class A shares reflect the historical performance of the Institutional shares and Class P shares, respectively, of the Epoch International Small Cap Fund (the predecessor to the Fund, which was subject to a different fee structure, and for which Epoch Investment Partners, Inc. served as investment adviser) for periods prior to November 16, 2009. Performance data for the classes varies based on differences in their fee and expense structures . Class A shares (formerly Class P shares) were first offered on August 2, 2006. Performance figures for Class C and Investor Class shares, first offered November 16, 2009, reflect the historical performance of Class I shares through November 15, 2009, adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	28.06	%
Worst Quarter
3Q/08	-26.68	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	3.85	%	1.66	%	N/A	%

MainStay Epoch International Small Cap Fund


	1 Year		5 Years		10 Years
Investor Class	3.63	%	1.47	%	4.68	%
Class C	7.86	%	1.87	%	4.61	%
Class I	10.10	%	3.06	%	5.73	%
Return After Taxes on Distributions
Class I	9.64	%	2.86	%	4.94	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	6.39	%	2.54	%	4.59	%
MSCI World Ex U.S. Small Cap Index (reflects no deductions for fees, expenses, or taxes)	5.46	%	4.39	%	4.09	%

* Reflects performance from August 2, 2006.

Management

New York Life Investment Management LLC serves as the Fund's Manager. Epoch Investment Partners, Inc. serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Epoch Investment Partners, Inc.	Eric Citerne, Managing Director	Since 2011
	Michael Welhoelter, Managing Director	Since 2009
	John Morgan, Managing Director	Since 2014

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

MainStay ICAP International Fund

Investment Objective

The Fund seeks total return.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I		Class R1		Class R2		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%	0.80	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None		None		0.25	%	0.50	%
	Other Expenses	0.17	%	0.31	%	0.31	%	0.17	%	0.27	%	0.27	%	0.27	%
	Total Annual Fund Operating Expenses	1.22	%	1.36	%	2.11	%	0.97	%	1.07	%	1.32	%	1.57	%
	Waivers / Reimbursements ³	0.00	%	0.00	%	0.00	%	(0.02	)%	0.00	%	0.00	%	0.00	%
	Total Annual Fund Operating Expenses After Waivers / Reimbursements ³	1.22	%	1.36	%	2.11	%	0.95	%	1.07	%	1.32	%	1.57	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.80% on assets up to $5 billion; 0.775% on assets from $5 billion to $7.5 billion; and 0.75% on assets in excess of $7.5 billion.

3. New York Life Investment Management LLC ("New York Life Investments") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) for Class I shares do not exceed 0.95% of its average daily net assets. This agreement will remain in effect until March 1, 2017, and shall renew automatically for one-year terms unless New York Life Investments provides written notice of termination prior to the start of the next term or upon approval of the Board of Trustees of the Fund.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I	Class R1	Class R2	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 667	$ 681	$ 214	$ 314	$ 97	$ 109	$ 134	$ 160
3 Years	$ 916	$ 957	$ 661	$ 661	$ 307	$ 340	$ 418	$ 496
5 Years	$ 1,183	$ 1,254	$ 1,134	$ 1,134	$ 534	$ 590	$ 723	$ 855
10 Years	$ 1,946	$ 2,095	$ 2,441	$ 2,441	$ 1,188	$ 1,306	$ 1,590	$ 1,867

Portfolio Turnover

MainStay ICAP International Fund

Principal Investment Strategies

The Fund invests primarily in equity securities of foreign companies with market capitalizations (at the time of investment) of at least $3 billion. The Fund invests in equity securities of companies that trade in developed, emerging or developing markets. The Fund's investments may be publicly traded in the U.S. or on a foreign exchange, and may be bought or sold in a foreign currency. The Fund seeks to achieve a total return greater than the MSCI EAFE ^{^®} Index.

Under normal circumstances, the Fund will typically hold between 30 and 50 securities. The Fund intends to have at all times a majority of assets invested in foreign companies, with significant investments in at least three countries outside the United States. The Fund invests in foreign common stocks and other equity securities and currencies. Other equity securities may include American Depositary Receipts, European Depositary Receipts, Global Depositary Receipts, real estate investment trusts ("REITs"), warrants, preferred stocks and other securities convertible or exchangeable into common stock. Common stocks of foreign companies are generally equity securities issued by a company organized outside of the U.S. and are traded primarily in markets outside the U.S. The Fund may invest in foreign currency transactions (forwards) and futures transactions, which are types of derivative transactions, to enhance returns or reduce the risk of loss by hedging certain of its holdings.

ICAP continuously monitors each security and evaluates whether to eliminate it when its price target is achieved, the catalyst becomes inoperative or another stock offers a greater opportunity.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates.

MainStay ICAP International Fund

Derivatives Risk: Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index. Derivative strategies may expose the Fund to greater risk and often involve leverage, which may exaggerate a loss, potentially causing the Fund to lose more money than it would have lost had it invested in the underlying instrument. Derivatives may be difficult to sell, unwind or value. Derivatives may also be subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable to honor its contractual obligations to the Fund. Futures may be more volatile than direct investments in the instrument underlying the contract, and may not correlate perfectly to the underlying instrument. Futures and other derivatives also may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. Forward commitments entail the risk that the instrument may be worth less when it is issued or received than the price the Fund agreed to pay when it made the commitment. The use of foreign currency forwards may result in currency exchange losses due to fluctuations in currency exchange rates or an imperfect correlation between portfolio holdings denominated in a particular currency and the forward contracts entered into by the Fund. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Derivatives may also increase the expenses of the Fund.

Past Performance

MainStay ICAP International Fund

Annual Returns, Class I Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	22.50	%
Worst Quarter
3Q/11	-19.16	%

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-10.09	%	1.39	%	1.99	%
Investor Class	-10.22	%	1.26	%	1.86	%
Class C	-6.64	%	1.66	%	1.67	%
Class I	-4.59	%	2.88	%	2.88	%
Class R1	-4.70	%	2.77	%	2.76	%
Class R2	-4.95	%	2.46	%	2.48	%
Class R3	-5.19	%	2.20	%	2.21	%
Return After Taxes on Distributions
Class I	-4.78	%	2.69	%	2.35	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	-2.13	%	2.50	%	2.51	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	3.03	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Institutional Capital LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Institutional Capital LLC	Jerrold K. Senser, Chairman & Co-Chief Investment Officer*	Since 1997
	Thomas M. Cole, Senior Executive Vice President & Co-Chief Investment Officer	Since 2012
	Andrew P. Starr, Executive Vice President & Director of Research	Since 2014
	J. Christian Kirtley, Executive Vice President	Since 2015

* Jerrold K. Senser will continue to serve as a portfolio manager for the Funds until September 30, 2016.

How to Purchase and Sell Shares

MainStay ICAP International Fund

$50 minimum for subsequent purchases applies. Class R1, Class R2, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

MainStay International Equity Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class B		Class C		Class I		Class R1		Class R2		Class R3
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None		None		None		None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	5.00	%	1.00	%	None		None		None		None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets) ²	0.89	%	0.89	%	0.89	%	0.89	%	0.89	%	0.89	%	0.89	%	0.89	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	1.00	%	None		None		0.25	%	0.50	%
	Other Expenses	0.19	%	0.54	%	0.54	%	0.54	%	0.19	%	0.29	%	0.29	%	0.29	%
	Total Annual Fund Operating Expenses	1.33	%	1.68	%	2.43	%	2.43	%	1.08	%	1.18	%	1.43	%	1.68	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

2. The management fee is as follows: 0.89% on assets up to $500 million and 0.85% on assets in excess of $500 million.

Example


Expenses After	Class A	Investor	Class B		Class C		Class I	Class R1	Class R2	Class R3
		Class	Assuming no redemption	Assuming redemption at end of period	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 678	$ 711	$ 246	$ 746	$ 246	$ 346	$ 110	$ 120	$ 146	$ 171
3 Years	$ 948	$ 1,050	$ 758	$ 1,058	$ 758	$ 758	$ 343	$ 375	$ 452	$ 530
5 Years	$ 1,239	$ 1,412	$ 1,296	$ 1,496	$ 1,296	$ 1,296	$ 595	$ 649	$ 782	$ 913
10 Years	$ 2,063	$ 2,428	$ 2,581	$ 2,581	$ 2,766	$ 2,766	$ 1,317	$ 1,432	$ 1,713	$ 1,987

Portfolio Turnover

MainStay International Equity Fund

Principal Investment Strategies

The Fund invests in those companies that meet the quality and valuation criteria of Cornerstone Capital Management Holdings LLC, the Fund's Subadvisor.

The Fund normally invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in equity securities of issuers, wherever organized, which operate mainly outside the U.S. The Fund invests in securities of companies which conduct business in a variety of countries, with a minimum of five countries other than the U.S. This includes countries with established economies as well as emerging market countries that the Subadvisor believes present favorable opportunities. The Fund may also invest in exchange-traded funds ("ETFs").

Investment Process : The Subadvisor seeks to identify investment opportunities through “bottom-up” analysis and fundamental research. The Subadvisor performs research to identify reasonably priced companies with competitive market advantages that it believes are able to benefit from long-term market trends and that the Subadvisor believes are able to sustainably grow earnings over time regardless of economic climate. Allocations to countries and industries are also a result of the "bottom-up" stock selection process and, as a result, may deviate from the country and industry weightings in the benchmark. The Fund may not perform as well as its peers or benchmark during periods when the stock market favors the securities of businesses with low-quality earnings.

Generally, the Fund seeks to limit its investments in securities of: (i) any one company; (ii) companies in the same industry; (iii) companies located in any one country; and (iv) companies located in emerging markets (currently limited to 15% of the Fund’s assets measured at the time of investment).

The Subadvisor may sell a security if it no longer believes the security will contribute to meeting the investment objective of the Fund. In considering whether to sell a security, the Subadvisor may evaluate, among other things, whether the security has approached full valuation, if the investment thesis is invalidated, if superior opportunities to redeploy exist or emerge, or if industry group or country weights or individual positions need to be adjusted.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates.

MainStay International Equity Fund

and less frequent accounting, financial and other reporting requirements, risk of loss resulting from problems in share registration and custody, substantial economic and political disruptions and the nationalization of foreign deposits or assets.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. Performance figures for Class R3 shares, first offered on April 28, 2006, include the historical performance of Class B shares through April 27, 2006. Performance figures for Investor Class shares, first offered on February 28, 2008, include the historical performance of Class A shares through February 27, 2008. The performance for these newer share classes is adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for these newer share classes would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class B Shares

(by calendar year 2006-2015)


Best Quarter
2Q/09	16.92	%
Worst Quarter
3Q/11	-19.57	%

MainStay International Equity Fund

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		10 Years
Return Before Taxes
Class A	-0.59	%	1.83	%	3.22	%
Investor Class	-0.92	%	1.48	%	2.96	%
Class B	-0.96	%	1.49	%	2.76	%
Class C	3.04	%	1.88	%	2.78	%
Class I	5.44	%	3.23	%	4.15	%
Class R1	5.35	%	3.13	%	4.05	%
Class R2	5.13	%	2.88	%	3.79	%
Class R3	4.76	%	2.61	%	3.51	%
Return After Taxes on Distributions
Class B	-0.82	%	1.62	%	2.31	%
Return After Taxes on Distributions and Sale of Fund Shares
Class B	-0.40	%	1.35	%	2.41	%
MSCI ACWI ^{^®} Ex U.S. Index (reflects no deductions for fees, expenses, or taxes)	-5.66	%	1.06	%	2.92	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	3.03	%

After-tax returns are calculated using the highest individual federal marginal income tax rates in effect at the time of each distribution or capital gain or upon the sale of fund shares, and do not reflect the impact of state and local taxes. In some cases, the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of shares at the end of the measurement period. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns shown are for Class B shares. After-tax returns for the other share classes may vary.

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management Holdings LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Cornerstone Capital Management Holdings LLC	Edward Ramos, Senior Vice President	Since 2011
	Carlos Garcia-Tunon, Vice President	Since 2013
	Eve Glatt, Vice President	Since 2013

How to Purchase and Sell Shares

You may purchase or sell shares of the Fund on any day the Fund is open for business by contacting your financial adviser or financial intermediary firm, or by contacting the Fund by telephone at 800-MAINSTAY (624-6782) , by mail at MainStay Funds, P.O. Box 8401, Boston, MA 02266-8401 or by accessing our website at mainstayinvestments.com. Generally, an initial investment minimum of $1,000 applies if you invest in Investor Class, Class B, or Class C shares, $25,000 for Class A shares and $5,000,000 for individual investors in Class I shares investing directly (i) with the Fund; or (ii) through certain private banks and trust companies that have an agreement with NYLIFE Distributors LLC, the Fund’s principal underwriter and distributor, or its affiliates. A subsequent investment minimum of $50 applies to investments in Investor Class, Class B and Class C shares. However, for Investor Class, Class B, or Class C shares purchased through AutoInvest, MainStay’s systematic investment plan, a $500 initial investment minimum and $50 minimum for subsequent purchases applies. Class R1 shares, Class R2 shares, Class R3 shares and institutional shareholders in Class I shares have no initial or subsequent investment minimums.

Tax Information

Compensation to Financial Intermediary Firms

MainStay International Opportunities Fund

Investment Objective

The Fund seeks long-term growth of capital.

Fees and Expenses of the Fund

The table below 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 $50,000 in the MainStay Funds. This amount may vary depending on the MainStay Fund in which you invest. More information about these and other discounts is available from your financial professional and in the "Information on Sales Charges" section starting on page 100 of the Prospectus and in the "Alternative Sales Arrangements" section on page 111 of the Statement of Additional Information.


		Class A		Investor Class		Class C		Class I
Shareholder Fees (fees paid directly from your investment)
	Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50	%	5.50	%	None		None
	Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the original offering price or redemption proceeds)	None	¹	None	¹	1.00	%	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
	Management Fees (as an annual percentage of the Fund's average daily net assets)	1.10	%	1.10	%	1.10	%	1.10	%
	Distribution and/or Service (12b-1) Fees	0.25	%	0.25	%	1.00	%	None
	Other Expenses
	Dividend Expense on Securities Sold Short	0.62	%	0.66	%	0.63	%	0.66	%
	Broker Fees and Charges on Short Sales	1.13	%	1.13	%	1.13	%	1.13	%
	Remainder of Other Expenses	0.17	%	0.30	%	0.30	%	0.17	%
	Total Other Expenses	1.92	%	2.09	%	2.06	%	1.96	%
	Acquired (Underlying) Fund Fees and Expenses	0.07	%	0.07	%	0.07	%	0.07	%
	Total Annual Fund Operating Expenses	3.34	%	3.51	%	4.23	%	3.13	%

1. A contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within one year of the date of purchase on shares that were purchased without an initial sales charge.

Example

The 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 (except as indicated with respect to Class C shares). The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


Expenses After	Class A	Investor	Class C		Class I
		Class	Assuming no redemption	Assuming redemption at end of period
1 Year	$ 868	$ 884	$ 425	$ 525	$ 316
3 Years	$ 1,521	$ 1,568	$ 1,284	$ 1,284	$ 966
5 Years	$ 2,195	$ 2,271	$ 2,156	$ 2,156	$ 1,640
10 Years	$ 3,981	$ 4,125	$ 4,396	$ 4,396	$ 3,439

Portfolio Turnover

Principal Investment Strategies

The Fund invests primarily in equity securities of foreign companies. The Fund will typically invest in companies with capitalizations similar to those in the MSCI EAFE ^{^®} Index (the “Index”) at the time of investment (which ranged from $1.87 billion to $237.46 billion as of December 31, 2015).

MainStay International Opportunities Fund

The Fund may also invest in equity securities with market capitalizations outside of the range of the Index. The Fund may invest in equity securities of companies that trade in emerging or developing markets, as determined by the Fund's Subadvisor, Cornerstone Capital Management Holdings LLC, with significant investments under normal circumstances in at least three countries outside of the United States.

The Fund may invest in swaps including total return swaps, futures, forwards and options. The Fund may also invest in American Depositary Receipts.

The Subadvisor believes that the use of both long and short positions better enables the Fund to seek to produce returns that are in excess of the Index. The Fund takes long positions primarily in securities that the Fund has identified as attractive and short positions in such securities that the Fund has identified as overvalued or poised for underperformance.

Investment Process: Using an objective, disciplined and broadly-applied process, the Subadvisor selects securities that it believes have the most potential to appreciate, while seeking to limit exposure to risk. The Subadvisor also seeks to control the Fund's exposure to risk through, among other things, country, sector and industry constraints. These constraints may limit the Fund’s ability to overweight or underweight particular sectors or industries relative to the Index. The Subadvisor will further seek to reduce risk by diversifying the Fund's portfolio over a large number of securities. The Fund’s Subadvisor seeks to construct a broadly-diversified portfolio across countries, sectors and industries using quantitative analysis to identify undervalued and overvalued securities that the Subadvisor believes have a high probability of providing total returns greater than the Index. The Subadvisor uses a quantitative model that is designed to evaluate individual issuers and securities across valuation, momentum and market sentiment criteria. The Subadvisor also conducts a qualitative review of the results of the quantitative analysis. In certain cases, the Subadvisor may deviate from positions or weightings suggested by the quantitative analysis to account for events and conditions that may not be quantifiable by the analysis, such as company-specific and market events. The Subadvisor regularly evaluates the quantitative model and, from time to time, the Subadvisor may adjust the metrics and data underlying its quantitative analysis for a variety reasons, including, without limitation, to account for changing market, financial or economic conditions.

In unusual market conditions, the Fund may invest all or a portion of its assets in equity securities of U.S. issuers, investment grade notes and bonds, cash and cash equivalents.

Principal Risks

Loss of Money Risk: Before considering an investment in the Fund, you should understand that you could lose money.

Selection Risk: The investments selected by the Fund's Subadvisor may underperform the market or other investments .

MainStay International Opportunities Fund

may not be able to borrow a security that it needs to deliver or it may not be able to close out a short position at an acceptable price and may have to sell related long positions before it had intended to do so. Thus, the Fund may not be able to successfully implement its short sale strategy due to limited availability of desired securities or for other reasons. The Fund also may be required to pay a premium and other transaction costs, which would increase the cost of the security sold short. The amount of any gain will be decreased, and the amount of any loss increased, by the amount of the premium, dividends, interest or expenses the Fund may be required to pay in connection with the short sale.

Until the Fund replaces a borrowed security, it is required to maintain a segregated account of cash or liquid assets with the Fund's custodian to cover the Fund's short position. Generally, securities held in a segregated account cannot be sold unless they are replaced with other liquid assets. The Fund's ability to access the pledged collateral may also be impaired in the event the broker fails to comply with the terms of the contract. In such instances the Fund may not be able to substitute or sell the pledged collateral. Additionally, the Fund must maintain sufficient liquid assets (less any additional collateral pledged to the broker), marked-to-market daily, to cover the short sale obligations. This may limit the Fund's investment flexibility, as well as its ability to meet redemption requests or other current obligations. Because losses on short sales arise from increases in the value of the security sold short, such losses are theoretically unlimited. By contrast, a loss on a long position arises from decreases in the value of the security and is limited by the fact that a security's value cannot go below zero.

Equity Securities Risk: Investments in common stocks and other equity securities are particularly subject to the risk of changing economic, stock market, industry and company conditions and the risks inherent in the portfolio managers' ability to anticipate such changes that can adversely affect the value of the Fund's holdings. Opportunity for greater gain often comes with greater risk of loss.

Foreign Securities Risk: Investments in foreign securities may be riskier than investments in U.S. securities. Differences between U.S. and foreign regulatory regimes and securities markets, including less stringent investor protections and disclosure standards of some foreign markets, less liquid trading markets and political and economic developments in foreign countries, may affect the value of the Fund's investments in foreign securities. Foreign securities may also subject the Fund's investments to changes in currency rates.

Derivatives Risk: Derivatives are investments whose value depends on (or is derived from) the value of an underlying instrument, such as a security, asset, reference rate or index. Derivative strategies may expose the Fund to greater risk and often involve leverage, which may exaggerate a loss, potentially causing the Fund to lose more money than it would have lost had it invested in the underlying instrument. Derivatives may be difficult to sell, unwind or value. Derivatives may also be subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable to honor its contractual obligations to the Fund. Swap transactions tend to shift the Fund's investment exposure from one type of investment to another, and therefore entail the risk that a party will default on its payment obligations to the Fund. Futures may be more volatile than direct investments in the instrument underlying the contract, and may not correlate perfectly to the underlying instrument. Futures and other derivatives also may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. Due to fluctuations in the price of the underlying security, the Fund may not be able to profitably exercise an option and may lose its entire investment in an option. Forward commitments entail the risk that the instrument may be worth less when it is issued or received than the price the Fund agreed to pay when it made the commitment. The use of foreign currency forwards may result in currency exchange losses due to fluctuations in currency exchange rates or an imperfect correlation between portfolio holdings denominated in a particular currency and the forward contracts entered into by the Fund. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce

MainStay International Opportunities Fund

counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Derivatives may also increase the expenses of the Fund.

Past Performance

Performance data for the classes varies based on differences in their fee and expense structures. The Fund commenced operations on September 28, 2007. Performance figures for Investor Class shares, first offered on February 28, 2008, include the historical performance of Class A shares through February 27, 2008, adjusted for differences in certain fees and expenses. Unadjusted, the performance shown for this newer share class would likely have been different. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Please visit mainstayinvestments.com for more recent performance information.

Annual Returns, Class I Shares

(by calendar year 2008-2015)


Best Quarter
2Q/09	24.94	%
Worst Quarter
3Q/08	-22.31	%

MainStay International Opportunities Fund

Average Annual Total Returns (for the periods ended December 31, 2015)


	1 Year		5 Years		Life of Fund
Return Before Taxes
Class A	-4.20	%	5.24	%	-0.87	%
Investor Class	-4.37	%	5.08	%	-0.98	%
Class C	-0.49	%	5.50	%	-1.07	%
Class I	1.65	%	6.70	%	0.03	%
Return After Taxes on Distributions
Class I	1.63	%	6.37	%	-0.41	%
Return After Taxes on Distributions and Sale of Fund Shares
Class I	1.31	%	5.57	%	0.05	%
MSCI EAFE ^{^®} Index (reflects no deductions for fees, expenses, or taxes)	-0.81	%	3.60	%	-0.71	%

Management

New York Life Investment Management LLC serves as the Fund's Manager. Cornerstone Capital Management Holdings LLC serves as the Fund's Subadvisor.


Subadvisor	Portfolio Managers	Service Date
Cornerstone Capital Management Holdings LLC	Andrew Ver Planck, Senior Vice President	Since 2007
	Jeremy Roethel, Vice President	Since 2014

How to Purchase and Sell Shares

Tax Information

Compensation to Financial Intermediary Firms

More About Investment Strategies and Risks

Information about each Fund's objective, principal investment strategies, investment practices and principal risk factors appears in the relevant summary section for each Fund at the beginning of the Prospectus. The information below describes in greater detail the investment risks pertinent to the Funds. Some of the Funds may use the investments/strategies discussed below more than other Funds. Not all investments/strategies of the Funds may be described in the Prospectus.

Additional information about the investment practices of the Funds and risks pertinent to these practices is included in the Statement of Additional Information ("SAI"). The following information is provided in alphabetical order and not necessarily in order of importance.

American Depositary Receipts ("ADRs")

The Funds may invest in ADRs. ADRs, which are typically issued by a U.S. financial institution (a "depositary"), evidence ownership interests in a security or pool of securities issued by a foreign company which are held by the depositary. ADRs are denominated in U.S. dollars and trade in the U.S. securities markets. Because ADRs are not denominated in the same currency as the underlying securities into which they may be converted, they are subject to currency risks. In addition, depositary receipts involve many of the same risks of investing directly in foreign securities. Generally, ADRs are treated by the Funds the same as foreign securities.

Debt or Fixed-Income Securities

The risks involved with investing in debt securities include (without limitation):

· Credit risk: Credit risk is the risk that an issuer, guarantor, or liquidity provider of a debt security may be unable or unwilling, or may be perceived (whether by market participants, ratings agencies, pricing services or otherwise) as unable or unwilling, to make timely principal and/or interest payments, or to otherwise honor its obligations. The purchaser of a debt security lends money to the issuer of that security. If the issuer does not pay back the loan, the holder of the security may experience a loss on its investment. Changes in an issuer's credit rating or the market's perception of an issuer's creditworthiness may also affect the value of a Fund's investment. Although credit quality may not accurately reflect the true credit risk or liquidity of an instrument, a change in the credit quality rating of an instrument or an issuer can have a rapid, adverse effect on the instrument’s liquidity and make it more difficult for a Fund to sell the instrument at an advantageous price or time. Credit ratings assigned by rating agencies are based on a number of factors and subjective judgments and, therefore, do not necessarily represent an issuer's actual financial condition or the volatility or liquidity of the security.

· Maturity risk: A debt security with a longer maturity may fluctuate in value more than a debt security with a shorter maturity. Therefore, the net asset value ("NAV") of a Fund that holds debt securities with a longer average maturity may fluctuate in value more than the NAV of a Fund that holds debt securities with a shorter average maturity.

· Market risk: Like other securities, debt securities are subject to the forces of supply and demand. Low demand may negatively impact the price of a debt security.

The duration of a bond or mutual fund portfolio is an indication of sensitivity to changes in interest rates. In general, the longer a Fund's duration, the more it will react to changes in interest rates and the greater the risk and return potential.

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A laddered maturity schedule means a portfolio is structured so that a certain percentage of the securities will mature each year. This helps a Fund manage duration and risk, and attempts to create a more consistent return.

Derivative Transactions

The Funds may enter into derivative transactions, or "derivatives," which may include options, forwards, futures, options on futures and swap agreements. The value of derivatives is based on certain underlying equity or fixed-income securities, interest rates, currencies or indices. The use of these transactions is a highly specialized activity that involves investment techniques, tax planning and risks that are different from those of ordinary securities transactions. Derivatives may be hard to sell at an advantageous price or time and typically are very sensitive to changes in the underlying security, interest rate, currency or index. As a result, derivatives can be highly volatile. If the Manager or the Subadvisor is incorrect about its expectations of changes to the underlying securities, in interest rates, currencies, indices or market conditions, the use of derivatives could result in a loss, which in some cases may be unlimited. When using derivatives, there is a risk that a Fund will lose money if the contract counterparty does not make the required payments or otherwise fails to comply with the terms of the contract. In the event of the bankruptcy or insolvency of a counterparty, a Fund could experience the loss of some or all of its investment in a derivative or experience delays in liquidating its positions, including declines in the value of its investment during the period in which the Fund seeks to enforce its rights, and an inability to realize any gains on its investment during such period. A Fund may also incur fees and expenses in enforcing its rights. Certain derivatives are subject to mandatory clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make derivatives transactions risk-free.

In addition, certain derivative transactions can result in leverage. Leverage involves investment exposure in an amount exceeding the initial investment. Leverage can cause increased volatility by magnifying gains or losses. Investments in derivatives may increase or accelerate the amount of taxable income of a Fund or result in the deferral of losses that would otherwise be recognized by a Fund in determining the amount of dividends distributable to shareholders. As series of investment companies registered with the Securities and Exchange Commission ("SEC"), the Funds must maintain reserves of liquid assets or enter into offsetting transactions to "cover" obligations with respect to certain kinds of derivative instruments. In addition, a Fund’s use of derivatives (including covered call options and covered put options) may (i) cause the Fund to realize higher amounts of short term capital gains (generally taxed at ordinary income tax rates) (ii) preclude the Fund from designating a portion of its distributions as qualified dividend income (generally taxed at long-term capital gains rates with respect to non-corporate shareholders) or as eligible for the corporate dividends received deduction that would otherwise be eligible for such designations if the Fund had not used such instruments.

Emerging Markets

Many emerging markets have histories of political instability and abrupt changes in policies. As a result, their governments may be more likely to take actions that are hostile or detrimental to private enterprise or foreign investment than those of more developed countries, including expropriation of assets, confiscatory taxation or unfavorable diplomatic developments. Some emerging 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. National policies that may limit a Fund's investment opportunities include restrictions on investment in issuers or industries deemed sensitive to national interests.

Practices in relation to settlement of securities transactions in emerging market countries involve higher risks than those in developed markets, in part because a Fund will need to use brokers and counterparties that are less well capitalized, and custody and registration of assets in some countries may be unreliable. The possibility of fraud, negligence, undue influence being exerted by the issuer or refusal to recognize ownership exists in some emerging markets, and, along with other factors, could result in ownership registration being completely lost. A Fund would absorb any loss resulting from such registration problems and may have no successful claim for

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compensation. In addition, communications between parties in the U.S. and parties in emerging market countries may be unreliable, increasing the risk of delayed settlements or losses of security certificates.

Equity Securities

Publicly held corporations may raise needed cash by issuing or selling equity securities to investors. When a Fund buys the equity securities of a corporation it becomes a part owner of the issuing corporation. Equity securities may be bought on domestic stock exchanges, foreign stock exchanges, or in the over-the-counter market. There are many different types of equity securities, including (without limitation) common stocks, preferred stocks, ADRs, and real estate investment trusts.

· Changing economic conditions: Equity securities may fluctuate as a result of general economic conditions, including changes in interest rates.

· Security selection: A portfolio manager may not be able to consistently select equity securities that appreciate in value, or anticipate changes that can adversely affect the value of a Fund's holdings. Investments in smaller and mid-size companies may be more volatile than investments in larger companies.

Exchange-Traded Funds (“ETFs”)

To the extent a Fund may invest in securities of other investment companies, the Fund may invest in shares of ETFs, including affiliated ETFs. ETFs are investment companies that trade like stocks. The price of an ETF is derived from and based upon the securities held by the ETF. However, like stocks, shares of ETFs are not traded at NAV, but may trade at prices above or below the value of their underlying portfolios. The level of risk involved in the purchase or sale of an ETF is similar to the risk involved in the purchase or sale of a traditional common stock, except that the pricing mechanism for an ETF is based on a basket of securities. Thus, the risks of owning an ETF generally reflect the risks of owning the underlying securities they are designed to track, although lack of liquidity in an ETF could result in it being more volatile than the underlying portfolio of securities. Disruptions in the markets for the securities underlying ETFs purchased or sold by a Fund could result in losses on the Fund's investment in ETFs. In addition, an actual trading market may not develop for an ETF’s shares and the listing exchange may halt trading of an ETF’s shares. ETFs are subject to management fees and other fees that may increase their costs versus the costs of owning the underlying securities directly. A Fund may from time to time invest in ETFs, primarily as a means of gaining exposure for its portfolio to the market without investing in individual securities, particularly in the context of managing cash flows into the Fund.

A Fund may invest in ETFs, among other reasons, to gain broad market, sector or asset class exposure, including during periods when it has large amounts of uninvested cash or when the Manager or Subadvisor believes share prices of ETFs offer attractive values, subject to any applicable investment restrictions in that Fund’s Prospectus and the relevant SAI.

Foreign Securities

Many of the foreign securities in which the Funds invest will be denominated or quoted in a foreign currency. Devaluation of a currency by a country’s government or banking authority will have an adverse impact on the U.S. dollar value of any investments denominated in that currency. Changes in foreign currency exchange rates will also affect the value of securities denominated or quoted in foreign currencies. Exchange rate movements can be large and can endure for extended periods of time, affecting either favorably or unfavorably the value of the Funds' assets. However, a Fund may engage in foreign currency transactions to attempt to protect itself against fluctuations in currency exchange rates in relation to the U.S. dollar. See "Risk Management Techniques" below.

Futures Transactions

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currencies, each Fund may enter into contracts for the future delivery of foreign currencies to hedge against changes in currency exchange rates. Subject to compliance with applicable rules and restrictions, the Funds also may enter into futures contracts traded on foreign futures exchanges.

A Fund may purchase and sell futures contracts on debt securities and on indices of debt securities in order to hedge against anticipated changes in interest rates that might otherwise have an adverse effect upon the value of a Fund's securities. A Fund may also enter into such futures contracts for other appropriate risk management, income enhancement and investment purposes.

There are several risks associated with the use of futures contracts and options on futures contracts. There can be no assurance that a liquid market will exist at the time when a Fund seeks to close out a futures contract. If no liquid market exists, a Fund would remain obligated to meet margin requirements until the position is closed. Futures may involve a small initial investment relative to the risk assumed, which could result in losses greater than if they had not been used. There can be no guarantee that there will be a correlation between price movements in the hedging vehicle and in a Fund's securities being hedged, even if the hedging vehicle closely correlates with the Fund's investments, such as with single stock futures contracts. If the price of a futures contract changes more than the price of the securities or currencies, a Fund will experience either a loss or a gain on the futures contracts that will not be completely offset by changes in the price of the securities or currencies that are the subject of the hedge. In addition, there are significant differences between the securities and futures markets that could result in an imperfect correlation between the markets, causing a given hedge not to achieve its objectives.

Global Depositary Receipts ("GDRs") and European Depositary Receipts ("EDRs")

To the extent a Fund may invest in foreign securities, a Fund may invest in GDRs and EDRs. GDRs and EDRs are receipts issued by foreign banks or trust companies, or foreign branches of U.S. banks that represent an interest in shares of either a foreign or U.S. corporation. GDRs and EDRs may not be denominated in the same currency as the underlying securities into which they may be converted, and are subject to currency risks. Depositary receipts involve many of the same risks of investing directly in foreign securities.

Growth Stocks

Certain Funds may invest in equity securities of companies that their portfolio managers believe will experience relatively rapid earnings growth. Such "growth stocks" typically trade at higher multiples of current earnings than other securities. Therefore, the values of growth stocks may be more sensitive to changes in current or expected earnings than the values of other securities.

Illiquid and Restricted Securities

A Fund's investments may include illiquid securities or restricted securities. The principal risk of investing in illiquid or restricted securities is that they may be difficult to sell.

Securities and other investments purchased by a Fund may be illiquid at the time of purchase, or liquid at the time of purchase and may subsequently become illiquid due to events relating to the issuer of the securities, market events, economic conditions or investor perceptions. Securities may also be less liquid (i.e. harder to sell) because of trading preferences, such as a buyer disfavoring purchases of odd lots or smaller blocks of securities. Domestic and foreign markets are becoming more and more complex and interrelated, so that events in one sector of the market or the economy or in one geographical region can reverberate and have negative consequences for other market, economic or regional sectors in a manner that may not be reasonably foreseen. With respect to over-the-counter traded securities, the continued viability of any over-the-counter secondary market depends on the continued willingness of dealers and other participants to purchase the securities.

If one or more instruments in a Fund's portfolio become illiquid, the Fund may exceed its limit on illiquid instruments. In the event that this occurs, the Fund must take steps to bring the aggregate amount of illiquid instruments back within the prescribed limitations as soon as reasonably practicable. This requirement would not force a Fund to liquidate any portfolio instrument where the Fund would suffer a loss on the sale of that instrument. Where no clear indication of the value of a particular investment is available, the investment will be valued at its fair value according to valuation procedures approved by the Fund's Board. These cases include, among others, situations where the secondary markets on which a security has previously been traded are no longer viable for lack of liquidity. The value of illiquid securities may reflect a discount, which may be significant, from the market price of comparable securities for which a liquid market exists, and thus negatively affect a Fund's NAV. In addition, the value of illiquid securities that subsequently become liquid may increase, positively affecting a Fund's NAV. Fund performance attributable to variations in liquidity are not necessarily an indication of future performance. For more information on fair valuation, please see "Fair Valuation and Portfolio Holdings Disclosure."

Restricted securities are securities that are sold only through negotiated private transactions and not to the general public, due to certain restrictions imposed by federal securities laws.

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Lending of Portfolio Securities

The Funds may lend their portfolio securities. Portfolio securities may be loaned to brokers, dealers and financial institutions to realize additional income under guidelines adopted by the Funds' Board. In determining whether to lend securities, the Manager or the Subadvisors or its/their agent, will consider relevant facts and circumstances, including the creditworthiness of the borrower. Securities lending involves the risk that a Fund may lose money in the event that the borrower fails to return the securities to the Fund in a timely manner or at all. A Fund also could lose money in the event of a decline in the value of the collateral provided for loaned securities. Furthermore, as with other extensions of credit, a Fund could lose its rights in the collateral should the borrower fail financially. Another risk of securities lending is the risk that the loaned portfolio securities may not be available to the Fund on a timely basis and the Fund may therefore lose the opportunity to sell the securities at a desirable price. Any decline in the value of a security that occurs while the security is out on loan would continue to be borne by the Fund.

Options

An option is a contract that gives the purchaser (holder) of the option, in return for a premium, the right to buy from (call) or sell to (put) the seller (writer) of the option the security or currency underlying the option at a specified exercise price at any time during the term of the option. If a Fund's Manager or Subadvisor judges market conditions incorrectly or employs a strategy that does not correlate well with the Fund's investments, these techniques could result in a loss, regardless of whether the intent was to reduce risk or increase return.

Other Investment Companies

A Fund may invest in other investment companies, including open-end funds, closed-end funds, and ETFs.

A Fund may purchase the securities of another investment company to temporarily gain exposure to a portion of the market while awaiting purchase of securities or as an efficient means of gaining exposure to a particular asset class. The Fund might also purchase shares of another investment company to gain exposure to the securities in the investment company’s portfolio at times when the Fund may not be able to buy those securities directly. Any investment in another investment company would be consistent with the Fund’s objective and investment program.

The risks of owning another investment company are generally similar to the risks of investment directly in the securities in which that investment company invests. However, an investment company may not achieve its investment objective or execute its investment strategy effectively, which may adversely affect the Fund’s performance. In addition, because closed-end funds and ETFs trade on a secondary market, their shares may trade at a premium or discount to the actual net asset value of their portfolio securities and their shares may have greater volatility because of the potential lack of liquidity.

Real Estate Investment Trusts ("REITs")

The Funds may invest in REITs. REITs are pooled investment vehicles that invest primarily in either real estate or real estate-related loans. Investment in REITs carries with it many of the risks associated with direct ownership of real estate, including declines in property values extended vacancies, increases in property taxes, and changes in interest rates. In addition to these risks, REITs are dependent upon management skills, may not be diversified, may experience substantial cost in the event of borrower or lessee defaults, and are subject to heavy cash flow dependency. A REIT could possibly fail to qualify for tax free pass-through of income under the Internal Revenue Code, or could fail to maintain its exemption from registration under the 1940 Act. The failure of a company to qualify as a REIT under federal tax law may have adverse consequences.

Rights and Warrants

To the extent that a Fund invests in equity securities, the Fund may invest in rights and warrants. The holder of a stock purchase right or a warrant has the right to purchase a given number of shares of a particular issuer at a specified price until expiration of the warrant. Such investments can provide a greater potential for profit or loss than an equivalent investment in the underlying security. Prices of rights and warrants do not necessarily move in tandem with the prices of the underlying securities, and warrants are speculative investments. Rights and warrants pay no dividends and confer no rights other than a purchase option. If a right or warrant is not exercised by the date of its expiration, the Fund will lose its entire investment in such right or warrant.

Short Sales

If a security sold short increases in price, a Fund may have to cover its short position at a higher price than the short sale price, resulting in a loss. A Fund may have substantial short positions and may borrow those securities to make delivery to the buyer. A Fund may not be able to borrow a security that it needs to deliver or it may not be able to close out a short position at an acceptable price and may have to sell related long positions before it had intended to do so. Thus, a Fund may not be able to successfully implement its short sale strategy due to the limited availability of desired securities or for other reasons. Because losses on short sales arise from increases in the value of the security sold short, such losses are theoretically unlimited.

When borrowing a security for delivery to a buyer, a Fund also may be required to pay a premium and other transaction costs, which would increase the cost of the security sold short. A Fund must normally repay to the lender an amount equal to any dividends or interest that accrues while the loan is outstanding. The amount of any gain will be decreased, and the amount of any loss increased, by the amount of the premium, dividends, interest or expenses a Fund may be required to pay in connection with the short sale. Also, the lender of a security may terminate the loan at a time when a Fund is unable to borrow the same security for delivery. In that case, the Fund

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would need to purchase a replacement security at the then current market price or "buy in" by paying the lender an amount equal to the cost of purchasing the security.

Until a Fund replaces a borrowed security, it is required to maintain a segregated account of cash or liquid assets with a broker or custodian to cover the Fund's short position. Generally, securities held in a segregated account cannot be sold unless they are replaced with other liquid assets. A Fund's ability to access the pledged collateral may also be impaired in the event the broker fails to comply with the terms of the contract. In such instances, the Fund may not be able to substitute or sell the pledged collateral. Additionally, a Fund must maintain sufficient liquid assets (less any additional collateral held by or pledged to the broker), marked-to-market daily, to cover the short sale obligation. This may limit a Fund's investment flexibility, as well as its ability to meet redemption requests or other current obligations.

By investing the proceeds received from selling securities short, a Fund is employing a form of leverage, which creates special risks. The use of leverage may increase a Fund's exposure to long equity positions and make any change in the Fund's NAV greater than without the use of leverage. This could result in increased volatility of returns. There is no guarantee that a Fund will leverage its portfolio, or if it does, that the Fund's leveraging strategy will be successful. A Fund cannot guarantee that the use of leverage will produce a higher return on an investment.

Small-Cap and Mid-Cap Stocks

Swap Agreements

The Funds may enter into swap agreements, including but not limited to, interest rate, credit default, index, equity (including total return), and currency exchange rate swap agreements to attempt to obtain a desired return at a lower cost than a direct investment in an instrument yielding that desired return. In a typical swap transaction, two parties agree to exchange the returns (or differentials in rates of returns) earned or realized on particular investments or instruments. The payments may be adjusted for transaction costs, interest payments, the amount of interest paid on the investment or instrument or other factors.

Whether the use of swap agreements will be successful will depend on whether the Manager or Subadvisor correctly predicts movements in the value of particular securities, interest rates, indices and currency exchange rates. In addition, swap agreements entail the risk that a party will default on its payment obligations to a Fund. For example, credit default swaps can result in losses if a Fund does not correctly evaluate the creditworthiness of the company on which the credit default swap is based. Certain standardized swaps are subject to mandatory central clearing. Central clearing is intended to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free. Because they are two-party contracts and because they may have terms of greater than seven days, certain swaps may be considered to be illiquid. There is a risk that the other party could go bankrupt and the Fund would lose the value of the security it should have received in the swap. For additional information on swaps, see "Derivative Transactions" above. Also, see the "Tax Information" section in the SAI for information regarding the tax considerations relating to swap agreements.

Temporary Defensive Investments

In times of unusual or adverse market, economic or political conditions, or abnormal circumstances (such as large cash inflows or anticipated large redemptions) for temporary defensive purposes or for liquidity purposes and for brief or prolonged periods, each Fund may invest outside the scope of its principal investment strategies. Under such conditions, a Fund may not invest in accordance with its investment objective or principal investment strategies and, as a result, there is no assurance that the Fund will achieve its investment objective. Under such conditions, each Fund may also invest without limit in cash or money market securities or other investments.

In unusual market conditions, the MainStay International Equity Fund may invest all or a portion of its assets in equity securities of U.S. issuers, investment grade notes and bonds, and cash and cash equivalents.

Value Stocks

The Funds may invest in companies that may not be expected to experience significant earnings growth, but whose securities their portfolio managers believe are selling at a price lower than their true value. Companies that issue such "value stocks" may have experienced adverse business developments or may be subject to special risks that have caused their securities to be out of favor. The principal risk of investing in value stocks is that they may never reach what the Fund's portfolio manager believes is their full value or that they may go down in value. If a portfolio manager's assessment of a company's prospects is wrong, or if the market does not recognize the value of the company, the price of that company's stock may decline or may not approach the value that the portfolio manager anticipates.

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When-Issued Securities and Forward Commitments

Debt securities are often issued on a when-issued or forward commitment basis. The price (or yield) of such securities is fixed at the time a commitment to purchase is made, but delivery and payment for the securities take place at a later date. During the period between purchase and settlement, no payment is made by a Fund and no interest accrues to the Fund. There is a risk that the security could be worth less when it is issued than the price a Fund agreed to pay when it made the commitment. Similarly, a Fund may commit to purchase a security at a future date at a price determined at the time of the commitment. The same procedure and risks exist for forward commitments as for when-issued securities.

Zero Coupon and Payment-in-Kind Bonds

One or more of the Funds may purchase zero coupon bonds, which are debt obligations issued without any requirement for the periodic payment of interest typical of other types of debt securities. Certain Funds may also invest in payment-in-kind bonds. Payment-in-kind bonds normally give the issuer an option to pay in cash at a coupon payment date or in securities with a fair value equal to the amount of the coupon payment that would have been made. Zero coupon bonds are issued at a significant discount from their face value. The discount approximates the total amount of interest the bonds would accrue and compound over the period until maturity at a rate of interest reflecting the market rate at the time of issuance. Because interest on zero coupon obligations is not paid to the Funds on a current basis but is, in effect, compounded, the value of this type of security is subject to greater fluctuations in response to changing interest rates than the value of debt obligations that distribute income regularly.

In addition, there may be special tax considerations associated with investing in high-yield/high-risk bonds structured as zero coupon or payment-in-kind securities. Interest on these securities is recorded annually as income even though no cash interest is received until the security's maturity or payment date. As a result, the amounts that have accrued each year are required to be distributed to shareholders and such amounts will be taxable to shareholders. Additionally, a Fund may have to sell some of its assets to distribute cash to shareholders. These actions are likely to reduce the Fund’s assets and may thereby increase its expense ratio and decrease its rate of return.

In addition to the principal investments described above, the Fund may also invest or engage in the following:

Convertible Securities

Initial Public Offerings ("IPOs")

Certain Funds may invest in securities that are made available in IPOs. IPO securities may be volatile, and the Funds cannot predict whether investments in IPOs will be successful. As a Fund grows in size, the positive effect of IPO investments on the Fund may decrease.

Large Transaction Risks

From time to time, the Funds may receive large purchase or redemption orders from affiliated or unaffiliated mutual funds or other investors. Such large transactions could have adverse effects on the Fund's performance if the Fund were required to sell securities, invest cash or hold significant cash at times when it otherwise would not do so. This activity could also accelerate the realization of capital gains and increase the Fund's transaction costs.

Loan Participation Interests

Loan participation interests, also referred to as Participations, are fractional interests in an underlying corporate loan and may be purchased from an agent bank, co-lenders or other holders of Participations. There are three types of Participations which a Fund may purchase. A Participation in a novation of a corporate loan involves a Fund assuming all of the rights of the lender in a corporate loan, including the right to receive payments of principal and interest and other amounts directly from the borrower and to enforce its rights as a lender directly against the borrower. Second, a Fund may purchase a Participation in an assignment of all or a portion of a lender's interest in a corporate loan, in which case the Fund may be required generally to rely on the assigning lender to demand payment and to enforce its rights against the borrower, but would otherwise be entitled to all of such lender's rights in the underlying corporate loan. Third, a Fund may also purchase a Participation in a portion of the rights of a lender in a corporate loan, in which case, a Fund will be entitled to receive payments of principal, interest and fees, if any, but generally will not be entitled to enforce its rights against the agent bank or borrower. The Fund must rely on the lending institution for that purpose.

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The principal credit risk associated with acquiring Participations from a co-lender or another Participant is the credit risk associated with the underlying corporate borrower. The Fund may incur additional credit risk, however, when it is in the position of Participant rather than co-lender because the Fund must then assume the risk of insolvency of the co-lender from which the Participation was purchased and that of any person interposed between the Fund and the co-lender.

Master Limited Partnerships ("MLPs")

Certain Funds may invest in MLPs. MLPs are limited partnerships in which ownership interests are publicly traded and are operated under the supervision of one or more general partners. Investments in MLPs carry many of the risks inherent in investing in a partnership. State law governing partnerships is often less restrictive than state law governing corporations. Accordingly, there may be fewer protections afforded to investors in an MLP. Limited partners may also have more limited control and limited rights to vote on matters affecting the MLP. A change in current tax law or in the underlying business mix of a given MLP could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by the Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction of the value of an investment in the Fund and lower income.

Portfolio Turnover

Portfolio turnover measures the amount of trading a Fund does during the year. Due to their trading strategies, certain Funds may experience a portfolio turnover rate of over 100%. The portfolio turnover rate for each Fund is found in the relevant summary sections for each Fund and the Financial Highlights. The use of certain investment strategies may generate increased portfolio turnover. A Fund with a high turnover rate (at or over 100%) often will have higher transaction costs (which are paid by the Fund) and may generate short-term capital gains (on which you'll pay taxes, even if you don't sell any shares by year-end).

Regulatory Risk

Government regulation and/or intervention may change the way a Fund is regulated, affect the expenses incurred directly by the Fund and the value of its investments, and limit and/or preclude a Fund’s ability to achieve its investment objective. Government regulation may change frequently and may have significant adverse consequences. Moreover, government regulation may have unpredictable and unintended effects. In addition to exposing a Fund to potential new costs and expenses, additional regulation or changes to existing regulation may also require changes to the Fund’s investment practice. For example, many of the changes required by the Dodd-Frank Wall Street Reform and Consumer Protection Act could materially impact the value of assets the Fund holds. Certain regulatory authorities may also prohibit or restrict the ability of a Fund to engage in certain derivative transactions or short-selling of certain securities. Although there continues to be uncertainty about the full impact of these and other regulatory changes, it is the case that the Fund may be subject to a more complex regulatory framework, and incur additional costs to comply with new requirements as well as to monitor for compliance with any new requirements going forward.

Risk Management Techniques

Various techniques can be used to increase or decrease a Fund’s exposure to changing security prices, interest rates, currency exchange rates, commodity prices or other factors that affect security values. These techniques may involve derivative transactions such as buying and selling futures contracts and options on futures contracts, entering into foreign currency transactions (such as foreign currency forward contracts and options on foreign currencies) and purchasing put or call options on securities and securities indices.

These practices can be used in an attempt to adjust the risk and return characteristics of a Fund's portfolio of investments. For example, to gain exposure to a particular market, a Fund may be able to purchase a futures contract with respect to that market. The use of such techniques in an attempt to reduce risk is known as "hedging." If the Manager or Subadvisor judges market conditions incorrectly or employs a strategy that does not correlate well with the Fund’s investments, these techniques could result in a loss, which in some cases may be unlimited, regardless of whether the intent was to reduce risk or increase return. These techniques may increase the volatility of a Fund and may involve a small investment of cash relative to the magnitude of the risk assumed. In addition, these techniques could result in a loss if the counterparty to the transaction does not perform as promised.

Russian Securities

Investments in securities of Russian issuers may involve greater risks than those typically associated with investments in securities of issuers in more developed countries. Such heightened risks include, among others, expropriation and/or nationalization of assets, restrictions on and government intervention in international trade, confiscatory or punitive taxation, regional conflict, political instability, including authoritarian and/or military involvement in governmental decision making, armed conflict, the imposition of economic sanctions by other nations, the impact on the economy as a result of civil war, and social instability as a result of religious, ethnic and/or socioeconomic unrest. The imposition of, or threat of the imposition of, sanctions may result in the decline of the value and liquidity of Russian securities, a weakening of the Russian Ruble or other adverse consequences to the Russian economy. In addition, sanctions could result in the immediate freeze of Russian securities, impairing the ability of the Fund to buy, sell, receive or deliver those securities. These events could have a negative effect on the performance of the Fund. The value of the Russian Ruble may be subject to a high degree of fluctuation. Moreover, the Fund may incur costs in connection with conversions between U.S. dollars and the Russian Ruble.

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Technology Stock Risk

A Fund may invest in technology companies. Such investments may be subject to various risks, including risks relating to falling prices and profits, competition from new domestic and international market entrants, difficulty in obtaining financing and general economic conditions. In addition, the products of technology companies may face obsolescence associated with rapid technological developments and innovation, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Technology companies are also heavily dependent on intellectual property rights and may be adversely affected by the loss or impairment of those rights. The profitability of technology companies, and a Fund’s investment in such companies, may be particularly vulnerable to changing market demand, research and development costs and availability and price of components and related commodities, which may be influenced or characterized by unpredictable factors. In addition, technology stocks historically have experienced unusually wide price swings, thus potentially causing a Fund’s performance to be more volatile than a Fund not invested in technology companies.

Other Information about the Funds:

Information Regarding Standard & Poor's ^®

"Standard & Poor's ^{^®} ," "S&P ^{^®} ," "S&P 500 ^{^®} ," "Standard & Poor's 500," and "500" are trademarks of The McGraw-Hill Companies, Inc. and have been licensed for use by New York Life Investments. The MainStay S&P 500 Index Fund is not sponsored, endorsed, sold or promoted by Standard & Poor's, and Standard & Poor's makes no representation regarding the advisability of investing in the Fund.

Investment Policies and Objectives

Certain Funds have names which suggest a focus on a particular type of investment. In accordance with Rule 35d-1 under the 1940 Act, each of these Funds has adopted a policy that it will, under normal circumstances invest at least 80% of the value of its assets (net assets plus the amount of any borrowings for investment purposes) in investments of the type suggested by its name. For a list of these policies, please see the SAI. This requirement is applied at the time a Fund invests its assets. If, subsequent to an investment by a Fund, this requirement is no longer met, the Fund's future investments will be made in a manner that will bring the Fund into compliance with this requirement. In addition, in appropriate circumstances, synthetic investments may count toward the 80% minimum if they have economic characteristics similar to the other investments included in the basket. The MainStay Funds have adopted a policy to provide a Fund's shareholders with at least 60 days' prior notice of any change in this non-fundamental policy with respect to investments of the type suggested by its name. For additional information, please see the SAI.

When the discussion states that a Fund invests "primarily" in a certain type or style of investment, this means that under normal circumstances the Fund will invest at least 65% of its assets, as described above, in that type or style of investment.

Certain Funds can invest their net assets in ETFs that invest in similar securities and count such holdings towards various guideline tests (such as the 80% test required under Rule 35d-1 under the Investment Company Act of 1940, as amended (the "1940 Act")).

Each Fund’s investment objective is non-fundamental and may be changed without shareholder approval.