Form 497K Voya MUTUAL FUNDS

Summary Prospectus    February 28, 2019, as supplemented October 15, 2019

Voya Multi-Manager International Equity Fund 

Class/Ticker: I/IIGIX; P/VIEPX

Before you invest, you may want to review the Fund's Prospectus, which contains more information about the Fund and its risks. For free paper or electronic copies of the Prospectus and other Fund information (including the Statement of Additional Information and most recent financial report to shareholders), go to www.individuals.voya.com/literature; email a request to [email protected]; call 1-800-992-0180; or ask your salesperson, financial intermediary, or retirement plan administrator. The Fund's Prospectus and Statement of Additional Information, each dated February 28, 2019, as supplemented, and the audited financial statements on pages 20-47 of the Fund’s shareholder report dated October 31, 2018 are incorporated into this Summary Prospectus by reference and may be obtained free of charge at the website, phone number, or e-mail address noted above.

Beginning on January 1, 2021, as permitted by regulations adopted by the U.S. Securities and Exchange Commission, paper copies of the Fund's annual and semi-annual shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports. Instead, the reports will be made available on the Voya funds' website (www.individuals.voya.com/literature), and you will be notified by mail each time a report is posted and provided with a website link to access the report.

If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. You may elect to receive shareholder reports and other communications from the Fund electronically anytime by contacting your financial intermediary (such as a broker-dealer or bank) or, if you are a direct investor, by calling 1-800-992-0180 or by sending an e-mail request to [email protected].

You may elect to receive all future reports in paper free of charge. If you received this document in the mail, please follow the instructions to elect to continue receiving paper copies of your shareholder reports. If you received this document through a financial intermediary, you can contact your financial intermediary to request that you continue to receive paper copies of your shareholder reports. If you invest directly with us, you can call 1-800-992-0180 or send an email request to [email protected] to let the Fund know you wish to continue receiving paper copies of your shareholder reports. Your election to receive reports in paper will apply to all funds held in your account if you invest through your financial intermediary or all funds held with the Voya funds complex if you invest directly with the funds.

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effect, if any, for the one-year period and the first year of the three-, five-, and ten-year periods. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Class	Share Status		1 Yr	3 Yrs	5 Yrs	10 Yrs
I	Sold or Held	$	99	309	536	1,190
P	Sold or Held	$	15	371	751	1,818

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may mean higher taxes if you are investing in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Expense Example, affect the Fund's performance.

During the most recent fiscal year, the Fund's portfolio turnover rate was 45% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets (plus borrowings for investment purposes) in equity securities. The Fund will provide shareholders with at least 60 days’ prior notice of any change in this investment policy. The Fund invests at least 65% of its assets in equity securities of companies organized under the laws of, or with principal offices located in, a number of different countries outside of the United States, including companies in countries in emerging markets. The Fund does not seek to focus its investments in a particular industry or country. The Fund may invest in companies of any market capitalization. The equity securities in which the Fund may invest include, but are not limited to, common stocks, preferred stocks, depositary receipts, rights and warrants to buy common stocks, privately placed securities, and IPOs. The Fund may invest in real estate-related securities including real estate investment trusts. The Fund may invest in derivative instruments including options, futures, and forward foreign currency exchange contracts. The Fund typically uses derivatives to seek to reduce exposure to other risks, such as interest rate or currency risk, to substitute for taking a position in the underlying assets, for cash management, and/or to seek to enhance returns in the Fund.

The Fund invests its assets in foreign investments which are denominated in U.S. dollars, major reserve currencies and currencies of other countries and can be affected by fluctuations in exchange rates. To attempt to protect against adverse changes in currency exchange rates, the Fund may, but will not necessarily, use special techniques such as forward foreign currency exchange contracts.

The Fund may invest in other investment companies, including exchange traded funds, to the extent permitted under the Investment Company Act of 1940, as amended, and the rules, regulations, and applicable exemptive orders thereunder (“1940 Act”).

Voya Investments, LLC (the “Investment Adviser”) allocates the Fund’s assets to different sub-advisers. The Investment Adviser may, from time to time, directly manage a portion of the Fund’s assets to seek to manage the Fund’s overall risk exposure, to achieve the Fund’s desired risk/return profile, and to effect the Fund’s investment strategies. The Investment Adviser may invest in futures and exchange-traded funds to implement its investment process.

Baillie Gifford Overseas Limited (“BG Overseas”), Lazard Asset Management LLC (“Lazard”), Polaris Capital Management, LLC (“Polaris“) and Wellington Management Company LLP (“Wellington Management“) (each a ”Sub-Adviser“ and collectively ”Sub-Advisers“) provide day-to-day management of the Fund. The Sub-Advisers act independently of each other and use their own methodologies for selecting investments. The Fund's investment adviser will determine the amount of Fund assets allocated to each Sub-Adviser. The Investment Adviser will determine the amount of Fund assets allocated to each Sub-Adviser.

Each Sub-Adviser may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into opportunities believed to be more promising, among others.

The Fund may lend portfolio securities on a short-term or long-term basis, up to 33 ¹⁄3% of its total assets.

Baillie Gifford Overseas Limited

BG Overseas’s investment style primarily uses a bottom-up, stock-driven approach, with the objective of selecting stocks that it believes can sustain an above-average growth rate, which is not reflected in the share price. A significant part of the assets will normally be divided among continental Europe, the United Kingdom, and Asia (including Australia and New Zealand). Country allocation, however, is driven by stock selection. BG Overseas invests in companies that it believes are well-managed, quality businesses that enjoy sustainable, competitive advantages in their marketplace.

Companies are screened for quality first; valuation is a secondary consideration. BG Overseas looks for companies that it believes have attractive industry backgrounds, strong competitive positions within those industries, high-quality earnings, and a positive approach toward shareholders. The main fundamental factors that BG Overseas considers in this bottom-up analysis include earnings growth, cash flow growth, profitability, capital structure, and valuation.

Lazard Asset Management LLC

In choosing securities, Lazard normally invests in large non-U.S. companies with market capitalizations generally above $3 billion at the time of purchase that Lazard believes are undervalued based on their earnings, cash flow or asset values balanced by financial productivity. Lazard believes that stock returns over time are driven by the sustainability and direction of financial productivity, balanced by valuation. However, Lazard believes that financial markets will sometimes evaluate these factors

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inefficiently, presenting investment opportunities. Lazard looks for established companies in economically developed countries and may invest in securities of companies whose principal business activities are located in emerging market countries or are domiciled in emerging market countries.

Polaris Capital Management, LLC

Polaris uses proprietary investment technology combined with Graham & Dodd style fundamental research to seek to identify potential investments that Polaris believes have significantly undervalued streams of sustainable cash flow. The firm uses traditional valuation measures, including price/book ratios and price/sustainable free cash flow ratios to screen its database of more than 40,000 companies worldwide. Polaris uses these measures to identify approximately 500 companies that Polaris believes have the greatest potential for undervalued streams of sustainable free cash flow. As a cross check to the database screen, a global valuation model is used that seeks to identify the most undervalued countries based on corporate earnings, yield, inflation, interest rates, and other variables. Allocations among investments are primarily determined by bottom-up security analysis while providing diversification in terms of country, industry and market capitalization. Polaris monitors portfolio companies as well as a “watch list” comprised of companies which may be purchased if the valuation of an existing portfolio company falls below established limits.

Wellington Management Company LLP

Wellington Management conducts fundamental research on individual companies to identify securities for purchase or sale. Fundamental analysis of a company involves the assessment of such factors as its business environment, management quality, balance sheet, income statement, anticipated earnings, revenues and dividends, and other related measures and indicators of value. Wellington Management seeks to invest in companies with underappreciated assets, improving and/or sustainable return on capital, and/or stocks that it believes are mispriced by the market due to short-term issues. This proprietary research takes into account each company’s long-term history as well as Wellington Management’s analysts’ forward-looking estimates, and allows for a comparison of the intrinsic value of stocks on a global basis focusing on return on invested capital in conjunction with other valuation metrics. Portfolio construction is driven primarily by bottom-up stock selection, with region, country, and sector weightings being secondary factors.

Principal Risks

You could lose money on an investment in the Fund. Any of the following risks, among others, could affect Fund performance or cause the Fund to lose money or to underperform market averages of other funds.

Company: The price of a company’s stock could decline or underperform for many reasons including, among others, poor management, financial problems, reduced demand for company

goods or services, regulatory fines and judgments, or business challenges. If a company declares bankruptcy or becomes insolvent, its stock could become worthless.

Currency: To the extent that the Fund invests directly or indirectly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those foreign (non-U.S.) currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged by the Fund through foreign currency exchange transactions.

Derivative Instruments: Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying securities, credit risk with respect to the counterparty, risk of loss due to changes in market interest rates and liquidity and volatility risk. The amounts required to purchase certain derivatives may be small relative to the magnitude of exposure assumed by the Fund. Therefore, the purchase of certain derivatives may have an economic leveraging effect on the Fund and exaggerate any increase or decrease in the net asset value. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging purposes, the change in value of a derivative may not correlate as expected with the currency, security or other risk being hedged. When used as an alternative or substitute for direct cash investment, the return provided by the derivative may not provide the same return as direct cash investment. In addition, given their complexity, derivatives expose the Fund to the risk of improper valuation.

Foreign Investments/Developing and Emerging Markets: Investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies due to: smaller markets; differing reporting, accounting, and auditing standards; nationalization, expropriation, or confiscatory taxation; foreign currency fluctuations, currency blockage, or replacement; potential for default on sovereign debt; or political changes or diplomatic developments, which may include the imposition of economic sanctions or other measures by the United States or other governments and supranational organizations. Markets and economies throughout the world are becoming increasingly interconnected, and conditions or events in one market, country or region may adversely impact investments or issuers in another market, country or region. Foreign investment risks may be greater in developing and emerging markets than in developed markets.

Growth Investing: Prices of growth stocks are more sensitive to investor perceptions of the issuing company’s growth potential and may fall quickly and significantly if investors suspect that actual growth may be less than expected. There is a risk that funds that invest in growth-oriented stocks may underperform other funds that invest more broadly. Growth stocks tend to be more volatile than value stocks, and may underperform the market as a whole over any given time period.

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Initial Public Offerings: Investments in initial public offerings (“IPOs”) and companies that have recently gone public have the potential to produce substantial gains for the Fund. However, there is no assurance that the Fund will have access to profitable IPOs or that the IPOs in which the Fund invests will rise in value. Furthermore, the value of securities of newly public companies may decline in value shortly after the IPO. When the Fund’s asset base is small, the impact of such investments on the Fund’s return will be magnified. If the Fund’s assets grow, it is likely that the effect of the Fund’s investment in IPOs on the Fund’s return will decline.

Investing through Stock Connect: Shares in mainland China-based companies that trade on Chinese stock exchanges such as the Shanghai Stock Exchange and the Shenzhen Stock Exchange (“China A-Shares”) may be purchased directly or indirectly through the Shanghai-Hong Kong Stock Connect (“Stock Connect”), a mutual market access program designed to, among other things, enable foreign investment in the People’s Republic of China (“PRC”) via brokers in Hong Kong. There are significant risks inherent in investing in China A-Shares through Stock Connect. The underdeveloped state of PRC’s investment and banking systems subjects the settlement, clearing, and registration of China A-Shares transactions to heightened risks. Stock Connect can only operate when both PRC and Hong Kong markets are open for trading and when banking services are available in both markets on the corresponding settlement days. As such, if either or both markets are closed on a U.S. trading day, the Fund may not be able to dispose of its China A-Shares in a timely manner, which could adversely affect the Fund’s performance.

Investment Model: A manager’s proprietary model may not adequately allow for existing or unforeseen market factors or the interplay between such factors.

Liquidity: If a security is illiquid, the Fund might be unable to sell the security at a time when the Fund’s manager might wish to sell, or at all. Further, the lack of an established secondary market may make it more difficult to value illiquid securities, exposing the Fund to the risk that the price at which it sells illiquid securities will be less than the price at which they were valued when held by the Fund. The prices of illiquid securities may be more volatile than more liquid investments. The risks associated with illiquid securities may be greater in times of financial stress. The Fund could lose money if it cannot sell a security at the time and price that would be most beneficial to the Fund.

Market: Stock prices may be volatile or have reduced liquidity in response to real or perceived impacts of factors including, but not limited to, economic conditions, changes in market interest rates, and political events. Stock markets tend to be cyclical, with periods when stock prices generally rise and periods when stock prices generally decline. Any given stock market segment may remain out of favor with investors for a short or long period of time, and stocks as an asset class may underperform bonds or other asset classes during some periods. Additionally, legislative, regulatory or tax policies or developments

in these areas may adversely impact the investment techniques available to a manager, add to costs and impair the ability of the Fund to achieve its investment objectives.

Market Capitalization: Stocks fall into three broad market capitalization categories - large, mid, and small. Investing primarily in one category carries the risk that, due to current market conditions, that category may be out of favor with investors. If valuations of large-capitalization companies appear to be greatly out of proportion to the valuations of mid- or small-capitalization companies, investors may migrate to the stocks of mid- and small-sized companies causing a fund that invests in these companies to increase in value more rapidly than a fund that invests in larger companies. Investing in mid- and small-capitalization companies may be subject to special risks associated with narrower product lines, more limited financial resources, smaller management groups, more limited publicly available information, and a more limited trading market for their stocks as compared with larger companies. As a result, stocks of mid- and small-capitalization companies may be more volatile and may decline significantly in market downturns.

Other Investment Companies: The main risk of investing in other investment companies, including exchange-traded funds (“ETFs”), is the risk that the value of the securities underlying an investment company might decrease. Shares of investment companies that are listed on an exchange may trade at a discount or premium from their net asset value. You will pay a proportionate share of the expenses of those other investment companies (including management fees, administration fees, and custodial fees) in addition to the expenses of the Fund. The investment policies of the other investment companies may not be the same as those of the Fund; as a result, an investment in the other investment companies may be subject to additional or different risks than those to which the Fund is typically subject.

Real Estate Companies and Real Estate Investment Trusts (“REITs”): Investing in real estate companies and REITs may subject the Fund to risks similar to those associated with the direct ownership of real estate, including losses from casualty or condemnation, changes in local and general economic conditions, supply and demand, market interest rates, zoning laws, regulatory limitations on rents, property taxes, and operating expenses in addition to terrorist attacks, war, or other acts that destroy real property. Investments in REITs are affected by the management skill and creditworthiness of the REIT. The Fund will indirectly bear its proportionate share of expenses, including management fees, paid by each REIT in which it invests.

Securities Lending: Securities lending involves two primary risks: “investment risk” and “borrower default risk.” When lending securities, the Fund will receive cash or U.S. government securities as collateral. Investment risk is the risk that the Fund will lose money from the investment of the cash collateral received from the borrower. Borrower default risk is the risk that the Fund will lose money due to the failure of a borrower to return a borrowed security. Securities lending may result in leverage. The use of leverage may exaggerate any increase

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or decrease in the net asset value, causing the Fund to be more volatile. The use of leverage may increase expenses and increase the impact of the Fund’s other risks.

Value Investing: Securities that appear to be undervalued may never appreciate to the extent expected. Further, because the prices of value-oriented securities tend to correlate more closely with economic cycles than growth-oriented securities, they generally are more sensitive to changing economic conditions, such as changes in market interest rates, corporate earnings and industrial production. The manager may be wrong in its assessment of a company’s value and the securities the Fund holds may not reach their full values. A particular risk of the Fund’s value approach is that some holdings may not recover and provide the capital growth anticipated or a security judged to be undervalued may actually be appropriately priced. The market may not favor value-oriented securities and may not favor equities at all. During those periods, the Fund’s relative performance may suffer. There is a risk that funds that invest in value-oriented stocks may underperform other funds that invest more broadly.

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

Performance Information

The following information is intended to help you understand the risks of investing in the Fund. The following bar chart shows the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index/indices for the same period. The Fund's performance information reflects applicable fee waivers and/or expense limitations in effect during the period presented. Absent such fee waivers/expense limitations, if any, performance would have been lower. The bar chart shows the performance of the Fund's Class I shares.

Because Class P shares of the Fund had not commenced operations as of the calendar year ended December 31, 2018, no performance information for Class P shares is provided below.

On January 20, 2017, Polaris Capital Management, LLC and Wellington Management Company LLP were added as additional sub-advisers and J.P. Morgan Investment management Inc. (which served as a sub-adviser from July 1, 2013 to January 20, 2017) and T. Rowe Price Associates, Inc. (which served as a sub-adviser from December 15, 2010 to January 20, 2017) were removed as sub-advisers. On July 1, 2013, J.P. Morgan Investment Management Inc. and Lazard Asset Management LLC were added as additional sub-advisers. These changes to the sub-advisers resulted in a change to the Fund’s principal investment strategies. If the Fund’s current sub-advisers and strategies had been in place for the prior period, the performance information shown would have been different. The Fund's past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to

www.individuals.voya.com/literature or call 1-800-992-0180.

Calendar Year Total Returns Class I
(as of December 31 of each year)

Best quarter: 1^st 2012, 13.75% and Worst quarter: 4^th 2018, -14.19%

Average Annual Total Returns %
(for the periods ended December 31, 2018)

		1 Yr	5 Yrs	10 Yrs	Since Inception	Inception Date
Class I before taxes	%	-15.72	-0.30	N/A	2.79	01/06/11
After tax on distributions	%	-16.72	-1.09	N/A	2.19
After tax on distributions with sale	%	-7.88	-0.16	N/A	2.08
MSCI EAFE® Index1	%	-13.79	0.53	N/A	3.41
MSCI ACW IndexSM Ex-U.S.1	%	-14.20	0.68	N/A	2.39

1	The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions, or other expenses.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”). In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

Portfolio Management

Investment Adviser
Voya Investments, LLC

    

Portfolio Managers
Halvard Kvaale, CIMA Portfolio Manager (since 04/17)	Paul Zemsky, CFA Portfolio Manager (since 05/18)

    

Sub-Adviser
Baillie Gifford Overseas Limited

    

Portfolio Managers
Gerard Callahan Portfolio Manager (since 01/11)	Iain Campbell Portfolio Manager (since 01/11)
Sophie Earnshaw, CFA Portfolio Manager (since 12/14)	Joe Faraday, CFA Portfolio Manager (since 01/11)
Moritz Sitte, CFA Portfolio Manager (since 12/14)

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Sub-Adviser
Lazard Asset Management LLC

    

Portfolio Managers
Michael G. Fry Portfolio Manager (since 07/13)	Michael A. Bennett Portfolio Manager (since 07/13)
Giles Edwards Portfolio Manager (since 05/19)	Kevin Matthews Portfolio Manager (since 07/13)
Michael Powers Portfolio Manager (since 07/13)	John R. Reinsberg Portfolio Manager (since 07/13)

    

Sub-Adviser
Polaris Capital Management, LLC

    

Portfolio Managers
Bernard R. Horn, Jr. Portfolio Manager (since 01/17)	Sumanta Biswas, CFA Assistant Portfolio Manager (since 01/17)
Jason Crawshaw Assistant Portfolio Manager (since 02/18)	Bin Xiao, CFA Assistant Portfolio Manager (since 01/17)

    

Sub-Adviser
Wellington Management Company LLP

    

Portfolio Managers
Nicolas M. Choumenkovitch Portfolio Manager (since 01/17)	Tara Connolly Stilwell, CFA Portfolio Manager (since 01/17)

Purchase and Sale of Fund Shares

Shares of the Fund may be purchased or sold on any business day (normally any day when the New York Stock Exchange opens for regular trading). You can buy or sell shares of the Fund through a broker-dealer or other financial intermediary; by visiting our website at www.voyainvestments.com; by writing to us at Voya Investment Management, 7337 East Doubletree Ranch Road, Suite 100, Scottsdale, Arizona 85258-2034; or by calling us at 1-800-992-0180.

Minimum Initial Investment $ by share class

Class		I	P
Non-retirement accounts	$	250,000	—
Retirement accounts	$	250,000	—
Certain omnibus accounts	$	—	—
Pre-Authorized Investment Plan	$	250,000	—

There are no minimums for additional investments except that the Pre-Authorized Investment Plan requires a monthly investment of at least $100. For Class I shares, there is no minimum initial investment requirement for qualified retirement plans or other defined contribution plans and defined benefit plans that invest in the Voya funds through omnibus arrangements or for employees of Voya Investment Management Co. LLC (“Voya IM”) who are eligible to participate in “notional” bonus programs sponsored by Voya IM or for members of the Adviser’s Multi-Asset Strategies & Solutions team.

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 advantaged arrangement, such as a 401(k) plan or an IRA. If you are investing through a tax advantaged arrangement, you may be taxed upon withdrawals from that arrangement.

Payments to Broker-Dealers and Other Financial Intermediaries

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

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SPRO-163380 (1019-101519)