Voya Floating Rate Fund 497k

Summary Prospectus July 31, 2025

Voya Floating Rate Fund

Class/Ticker: A/IFRAX; C/IFRCX; I/IFRIX; R/IFRRX; W/IFRWX

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 https://individuals.voya.com/literature; email a request to Voyaim_literature@voya.com; 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 July 31, 2025, and the audited financial statements that are included in the fund’s shareholder report dated March 31, 2025 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.

Investment Objective

The Fund seeks to provide investors with a high level of current income.

Fees and Expenses of the Fund

These tables describe the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Voya mutual funds. More information about these and other discounts is available from your financial intermediary and in the discussion in the Sales Charges section of the Prospectus (page 91), in Appendix A to the Prospectus, or the Purchase, Exchange, and Redemption of Shares section of the Statement of Additional Information (page 94).

Shareholder Fees
Fees paid directly from your investment

Class	Maximum sales charge (load) as a % of offering price imposed on purchases	Maximum deferred sales charge (load) as a % of purchase or sales price, whichever is less
A	2.50	None2
C	None	1.00
I	None	None
R	None	None
W	None	None

Annual Fund Operating Expenses1
Expenses you pay each year as a % of the value of your investment

Class		A	C	I	R	W
Management Fees	%	0.65	0.65	0.65	0.65	0.65
Distribution and/or Shareholder Services (12b-1) Fees	%	0.25	1.00	None	0.50	None
Other Expenses	%	0.21	0.21	0.18	0.21	0.21
Total Annual Fund Operating Expenses	%	1.11	1.86	0.83	1.36	0.86
Waivers and Reimbursements 3	%	(0.16)	(0.16)	(0.13)	(0.16)	(0.16)
Total Annual Fund Operating Expenses After Waivers and Reimbursements	%	0.95	1.70	0.70	1.20	0.70

Expense information has been restated to reflect current contractual rates.

A contingent deferred sales charge of 1.00% is assessed on certain redemptions of Class A shares made within 12 months after purchase where no initial sales charge was paid at the time of purchase as part of an investment of $500,000 or more.

Voya Investments, LLC (the “Investment Adviser”) is contractually obligated to limit expenses to 1.00%, 1.75%, 0.75%, 1.25%, and 0.75% for Class A, Class C, Class I, Class R, and Class W shares, respectively, through August 1, 2026. This limitation is subject to possible recoupment by the Investment Adviser within 36 months of the waiver or reimbursement. The amount of the recoupment is limited to the lesser of the amounts that would be recoupable under: (i) the expense limitation in effect at the time of the waiver or reimbursement; or (ii) the expense limitation in effect at the time of recoupment. The Investment Adviser is contractually obligated to further limit expenses to 0.95%, 1.70%, 0.70%, 1.20%, and 0.70% for Class A, Class C, Class I, Class R, and Class W shares, respectively, through August 1, 2026. This expense limitation does not extend to interest, taxes, other investment-related costs, leverage expenses, extraordinary expenses, other expenses not incurred in the ordinary course of business, expenses of any counsel or other persons or services retained by the Fund’s Board of Trustees (the “Board”) who are not “interested persons,” as that term is defined in the 1940 Act,

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and Acquired Fund Fees and Expenses. The Investment Adviser is also contractually obligated to waive 0.02% of the management fee through August 1, 2026. Termination or modification of these obligations requires approval by the Fund’s Board.

Expense Example

This Example is intended to help you compare the cost of investing in shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example shows costs if you sold (redeemed) your shares at the end of the period or continued to hold them. The Example also assumes that your investment had a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects applicable expense limitation agreements and/or waivers in 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:

		If you sold your shares						If you held your shares
		Number of years you own your shares						Number of years you own your shares
		1 Yr	3 Yrs	5 Yrs	10 Yrs			1 Yr	3 Yrs	5 Yrs	10 Yrs
A	$	345	579	831	1,554	A	$	345	579	831	1,554
C	$	273	569	991	2,167	C	$	173	569	991	2,167
I	$	72	252	448	1,013	I	$	72	252	448	1,013
R	$	122	415	729	1,621	R	$	122	415	729	1,621
W	$	72	258	461	1,046	W	$	72	258	461	1,046

The Example does not reflect sales charges (loads) on reinvested dividends (and other distributions). If these sales charges (loads) were included, your costs would be higher.

Portfolio Turnover

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

During the most recent fiscal year, the Fund's portfolio turnover rate was 78% 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 U.S. dollar denominated floating rate loans and other floating rate debt instruments, including: floating rate bonds; floating rate notes; money market instruments with a remaining maturity of 60 days or less; floating rate debentures; and tranches of floating rate asset-backed securities, including structured notes, made to, or issued by, U.S. and non-U.S. corporations or other business entities (collectively “Floating Rate Debt”). The Fund will provide shareholders with at least 60 days’ prior notice of any change in this investment policy.

The Fund normally invests substantially in floating rate loans. The floating rate loans in which the Fund invests are generally rated below investment grade and either hold the most senior position in the capital structure of the borrower, hold an equal ranking with other senior debt, or have characteristics (such as a senior position secured by liens on a borrower's assets) that the sub-adviser (the “Sub-Adviser”) believes justify treatment as senior debt. Below investment grade debt instruments are high-yield bonds commonly known as “junk bonds.” The Fund may invest in floating rate loans of companies whose financial condition is troubled or uncertain and that may be involved in bankruptcy proceedings, reorganizations, or financial restructurings. Structured notes include, but are not limited to, collateralized loan obligations (“CLOs”).

Although the Fund has no restrictions on investment maturity, normally the floating rate loans will have remaining maturities of ten years or less.

The Fund may invest in derivative instruments, including, but not limited to, the following: credit default swaps, interest rate swaps, futures, and forward contracts in order to seek to enhance returns or to attempt to hedge some of its investment risk.

The Fund may invest up to 20% of its assets, measured at the time of purchase, in a combination of one or more of the following types of investments: high-yield bonds, senior or subordinated fixed rate debt instruments, including notes and bonds, whether secured and unsecured; equity securities: (i) as an incident to the purchase or ownership of Floating Rate Debt or fixed rate debt instruments; (ii) in connection with a restructuring of a borrower or issuer or its debt; or (iii) if the Fund already owns Floating Rate Debt or a fixed rate debt instrument of the issuer of such equity; short-term debt obligations, repurchase

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agreements, cash and cash equivalents that do not otherwise qualify as Floating Rate Debt; and other investment companies, including exchange-traded funds (“ETFs”), to the extent permitted under the Investment Company Act of 1940, as amended, and the rules and regulations thereunder, and under the terms of applicable no-action relief or exemptive orders granted thereunder, (the “1940 Act”). The other investment companies in which the Fund invests may or may not be affiliated with the Investment Adviser. High-yield bonds are debt instruments that, at the time of purchase, are not rated by a nationally recognized statistical rating organization (“NRSRO”) or are rated below investment grade (for example, rated below BBB- by S&P Global Ratings or Baa3 by Moody’s Investors Service, Inc.) or have an equivalent rating by a NRSRO.

Most of the Fund’s investments will be denominated in U.S. dollars, although the Fund may invest in securities of foreign (non-U.S.) companies, foreign (non-U.S.) dollar denominated loans and securities (e.g., denominated in Euros, British pounds, Swiss francs or Canadian dollars), foreign (non-U.S.) sovereign debt instruments, and Eurodollar bonds and obligations. The Fund may invest a portion of its assets in obligations of issuers in, or denominated in currencies of, emerging market countries.

In evaluating investments for the Fund, the Sub-Adviser takes into account a wide variety of factors and considerations to determine whether any or all of those factors or considerations might have a material effect on the value, risks, or prospects of an investment. Among the factors considered, the Sub-Adviser expects typically to take into account environmental, social, and governance (“ESG”) factors to determine whether one or more factors may have a material effect. In considering ESG factors, the Sub-Adviser intends to rely primarily on factors identified through its proprietary empirical research and on third-party evaluations of an issuer’s ESG standing. ESG factors will be only one of many considerations in the Sub-Adviser’s evaluation of any potential investment; the extent to which ESG factors will affect the Sub-Adviser’s decision to invest in an issuer, if at all, will depend on the analysis and judgment of the Sub-Adviser.

The 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.

Pending Merger: On November 14, 2024, the Board approved a proposal to reorganize the Fund with and into Voya Short Duration High Income Fund (a series of Voya Funds Trust). The Fund’s shareholders approved the reorganization, and it is expected that the reorganization will take place on or about August 8, 2025 (the “Closing Date”). After the reorganization, shareholders that hold shares of the Fund on the Closing Date will hold shares of Voya Short Duration High Income Fund. For more information, please contact a Shareholder Services representative at 1-800-992-0180 or your financial professional.

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. The principal risks are presented in alphabetical order to facilitate readability, and their order does not imply that the realization of one risk is more likely to occur or have a greater adverse impact than another risk.

Bank Instruments: Bank instruments include certificates of deposit, fixed time deposits, bankers’ acceptances, and other debt and deposit-type obligations issued by banks. Changes in economic, regulatory, or political conditions, or other events that affect the banking industry may have an adverse effect on bank instruments or banking institutions that serve as counterparties in transactions with the Fund. In the event of a bank insolvency or failure, the Fund may be considered a general creditor of the bank, and it might lose some or all of the funds deposited with the bank. Even where it is recognized that a bank might be in danger of insolvency or failure, the Fund might not be able to withdraw or transfer its money from the bank in time to avoid any adverse effects of the insolvency or failure. Volatility in the banking system may impact the viability of banking and financial services institutions. In the event of failure of any of the financial institutions where the Fund maintains its cash and cash equivalents, there can be no assurance that the Fund would be able to access uninsured funds in a timely manner or at all and the Fund may incur losses. Any such event could adversely affect the business, liquidity, financial position and performance of the Fund.

Cash/Cash Equivalents: Investments in cash or cash equivalents may lower returns and result in potential lost opportunities to participate in market appreciation which could negatively impact the Fund’s performance and ability to achieve its investment objective.

Collateralized Loan Obligations and Other Collateralized Obligations: A collateralized loan obligation (“CLO”) is an obligation of a trust or other special purpose vehicle typically collateralized by a pool of loans, which may include senior secured and unsecured loans and subordinate corporate loans, including loans that may be rated below investment grade, or equivalent unrated loans. CLOs may incur management fees and administration fees. The risks of investing in a CLO depend largely on the type of the collateral held in the CLO portfolio and the tranche of securities in which the Fund may invest, and can generally be

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summarized as a combination of economic risks of the underlying loans combined with the risks associated with the CLO structure governing the priority of payments, and include interest rate risk, credit risk, liquidity risk, prepayment and extension risk, and the risk of default of the underlying asset, among others.

Covenant-Lite Loans: Loans in which the Fund may invest or to which the Fund may gain exposure indirectly through its investments in collateralized debt obligations, CLOs or other types of structured securities may be considered “covenant-lite” loans. Covenant-lite refers to loans which do not incorporate traditional performance-based financial maintenance covenants. Covenant-lite does not refer to a loan’s seniority in a borrower’s capital structure nor to a lack of the benefit from a legal pledge of the borrower’s assets and does not necessarily correlate to the overall credit quality of the borrower. Covenant-lite loans generally do not include terms which allow a lender to take action based on a borrower’s performance relative to its covenants. Such actions may include the ability to renegotiate and/or re-set the credit spread on the loan with a borrower, and even to declare a default or force the borrower into bankruptcy restructuring if certain criteria are breached. Covenant-lite loans typically still provide lenders with other covenants that restrict a borrower from incurring additional debt or engaging in certain actions. Such covenants can only be breached by an affirmative action of the borrower, rather than by a deterioration in the borrower’s financial condition. Accordingly, the Fund may have fewer rights against a borrower when it invests in, or has exposure to, covenant-lite loans and, accordingly, may have a greater risk of loss on such investments as compared to investments in, or exposure to, loans with additional or more conventional covenants.

Credit (Loans): The value of the Fund’s shares and the Fund’s ability to pay dividends is dependent upon the performance of the assets in its portfolio. Prices of the Fund’s investments are likely to fall if the actual or perceived financial health of the borrowers on, or issuers of, such investments deteriorate, whether because of broad economic or issuer-specific reasons, or if the borrower or issuer is late (or defaults) in paying interest or principal.

The Fund generally invests in loans that are senior in the capital structure of the borrower or issuer, hold an equal ranking with other senior debt, or have characteristics (such as a senior position secured by liens on a borrower’s assets) that the manager believes justify treatment as senior debt. Loans that are senior and secured generally involve less risk than unsecured or subordinated debt and equity instruments of the same borrower because the payment of principal and interest on senior loans is an obligation of the borrower that, in most instances, takes precedence over the payment of dividends, the return of capital to the borrower’s shareholders, and payments to bond holders. Loans that are senior and secured also may have collateral supporting the repayment of the debt instrument. However, the value of the collateral may not equal the Fund’s investment when the debt instrument is acquired or may decline below the principal amount of the debt instrument subsequent to the Fund’s investment. Also, to the extent that collateral consists of stocks of the borrower, or its subsidiaries or affiliates, the Fund bears the risk that the stocks may decline in value, be relatively illiquid, or may lose all or substantially all of their value, causing the Fund’s investment to be undercollateralized. Therefore, the liquidation of the collateral underlying a loan in which the Fund has invested may not satisfy the borrower’s obligation to the Fund in the event of non-payment of scheduled interest or principal, and the collateral may not be able to be readily liquidated. In addition, it is possible that disputes as to the nature or identity of the collateral securing a loan may delay the Fund’s ability to realize on the collateral or, if the dispute is resolved adversely to the Fund, may prevent the Fund from realizing on assets it had considered to constitute collateral.

In the event of the bankruptcy of a borrower or issuer, the Fund could experience delays and limitations on its ability to realize the benefits of the collateral securing the investment. Among the risks involved in a bankruptcy are assertions that the pledge of collateral to secure a loan constitutes a fraudulent conveyance or preferential transfer that would have the effect of nullifying or subordinating the Fund’s rights to the collateral.

The loans in which the Fund invests are generally rated lower than investment grade credit quality or have been made to borrowers who have issued debt instruments that are rated lower than investment grade in quality or, if unrated, would be rated lower than investment grade credit quality. The Fund’s investments in lower than investment grade loans will generally be rated at the time of purchase between B3 and Ba1 by Moody’s, B- and BB+ by S&P or, if not rated, would be of similar credit quality.

Lower quality securities (including securities that are or have fallen below investment grade) have greater credit risk and liquidity risk than higher quality (investment grade) securities, and their issuers’ long-term ability to make payments is considered speculative. Prices of lower quality bonds or other debt instruments are also more volatile, are more sensitive to negative news about the economy or the issuer, and have greater liquidity risk and price volatility. Investment decisions are based largely on the credit analysis performed by the manager, and not on rating agency evaluation. This analysis may be difficult to perform. Information about a loan and its borrower generally is not in the public domain. Investors in loans may not be afforded the protections of the anti-fraud provisions of the Securities Act of 1933, and the Securities Exchange Act of 1934, because loans may not be considered “securities” under such laws. In addition, many borrowers have not issued securities

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to the public and are not subject to reporting requirements under U.S. federal securities laws. Generally, however, borrowers are required to provide financial information to lenders and information may be available from other loan market participants or agents that originate or administer loans.

Credit Default Swaps: The Fund may enter into credit default swaps, either as a buyer or a seller of the swap. A buyer of a credit default swap is generally obligated to pay the seller an upfront or a periodic stream of payments over the term of the contract until a credit event, such as a default, on a reference obligation has occurred. If a credit event occurs, the seller generally must pay the buyer the “par value” (full notional value) of the swap in exchange for an equal face amount of deliverable obligations of the reference entity described in the swap, or the seller may be required to deliver the related net cash amount if the swap is cash settled. As a seller of a credit default swap, the Fund would effectively add leverage to its portfolio because, in addition to its total net assets, the Fund would be subject to investment exposure on the full notional value of the swap. Credit default swaps are particularly subject to counterparty, credit, valuation, liquidity and leveraging risks, and the risk that the swap may not correlate with its reference obligation as expected. Certain standardized credit default swaps are subject to mandatory central clearing. Central clearing is expected to reduce counterparty credit risk and increase liquidity; however, there is no assurance that it will achieve that result, and in the meantime, central clearing and related requirements expose the Fund to different kinds of costs and risks. In addition, credit default swaps expose the Fund to the risk of improper valuation.

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.

Demand for Loans: An increase in demand for loans may benefit the Fund by providing increased liquidity for such loans and higher sales prices, but it may also adversely affect the rate of interest payable on such loans and the rights provided to the Fund under the terms of the applicable loan agreement, and may increase the price of loans in the secondary market. A decrease in the demand for loans may adversely affect the price of loans in the Fund’s portfolio, which could cause the Fund’s net asset value to decline and reduce the liquidity of the Fund’s loan holdings.

Derivative Instruments: Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying asset, reference rate, or index credit risk with respect to the counterparty, risk of loss due to changes in market interest rates, liquidity risk, valuation risk, 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 asset, reference rate, or index 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.

Environmental, Social, and Governance (Fixed Income): The Sub-Adviser’s consideration of ESG factors in selecting investments for the Fund is based on information that is not standardized, some of which can be qualitative and subjective by nature. The Sub-Adviser’s assessment of ESG factors in respect of obligations of an issuer may rely on third-party data that might be incorrect or based on incomplete or inaccurate information. There is no minimum percentage of the Fund’s assets that will be invested in obligations of issuers that the Sub-Adviser views favorably in light of ESG factors, and the Sub-Adviser may choose not to invest in obligations of issuers that compare favorably to obligations of other issuers on the basis of ESG factors. It is possible that the Fund will have less exposure to obligations of certain issuers due to the Sub-Adviser’s assessment of ESG factors than other comparable mutual funds. There can be no assurance that an investment selected by the Sub-Adviser, which includes its consideration of ESG factors, will provide more favorable investment performance than another potential investment, and such an investment may, in fact, underperform other potential investments.

Equity Securities Incidental to Investments in Loans: Investments in equity securities incidental to investments in loans entail certain risks in addition to those associated with investments in loans. The value of such equity securities may change more rapidly, and to a greater extent, than debt instruments issued by the same issuer in response to company-specific developments and general market conditions. The Fund’s holdings of equity securities may increase fluctuations in the Fund’s net asset value. The Fund may frequently possess material non-public information about a borrower as a result of its ownership of a loan of such borrower. Because of prohibitions on trading in securities of issuers while in possession of such information, the Fund might be unable to enter into a transaction in a security of such a borrower when it would otherwise be advantageous to do so.

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Foreign (Non-U.S.) 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, in part, to: smaller markets; differing reporting, accounting, auditing and financial reporting standards and practices; nationalization, expropriation, or confiscatory taxation; foreign currency fluctuations, currency blockage, or replacement; potential for default on sovereign debt; and political changes or diplomatic developments, which may include the imposition of economic sanctions (or the threat of new or modified sanctions) or other measures by the U.S. 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 (non-U.S.) investment risks may be greater in developing and emerging markets than in developed markets.

Foreign (Non-U.S.) Investments for Floating Rate Loans: Investing in foreign (non-U.S.) debt instruments may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in debt instruments of U.S. companies due, in part, to: smaller markets; differing reporting, accounting, auditing and financial reporting standards and practices; nationalization, expropriation, or confiscatory taxation; foreign currency fluctuations, currency blockage, or replacement; potential for default on sovereign debt; and political changes or diplomatic developments, which may include the imposition of economic sanctions (or the threat of new or modified sanctions) or other measures by the U.S. 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.

High-Yield Securities: Lower-quality securities including securities that are or have fallen below investment grade (commonly referred to as “junk bonds”) have greater credit risk and liquidity risk than higher-quality (investment grade) securities, and their issuers' long-term ability to make payments is considered speculative. Prices of lower-quality bonds or other debt instruments are also more volatile, are more sensitive to negative news about the economy or the issuer, and have greater liquidity risk and price volatility.

Interest in Loans: The value and the income streams of interests in loans (including participation interests in lease financings and assignments in secured variable or floating rate loans) will decline if borrowers delay payments or fail to pay altogether. A significant rise in market interest rates could increase this risk. Although loans may be fully collateralized when purchased, such collateral may become illiquid or decline in value.

Interest Rate for Floating Rate Loans: Changes in short-term market interest rates will directly affect the yield on investments in floating rate loans. If short-term market interest rates fall, the yield on the Fund’s shares will also fall. To the extent that the interest rate spreads on loans in the Fund’s portfolio experience a general decline, the yield on the Fund’s shares will fall and the value of the Fund’s assets may decrease, which will cause the Fund’s net asset value to decrease. Conversely, when short-term market interest rates rise, because of the lag between changes in such short-term rates and the resetting of the floating rates on assets in the Fund’s portfolio, the impact of rising rates will be delayed to the extent of such lag. The impact of market interest rate changes on the Fund’s yield will also be affected by whether, and the extent to which, the floating rate loans in the Fund’s portfolio are subject to floors on the secured overnight funding rate (“SOFR”) base rate on which interest is calculated for such loans (a “benchmark floor”). So long as the base rate for a loan remains under the applicable benchmark floor, changes in short-term market interest rates will not affect the yield on such loans. In addition, to the extent that changes in market interest rates are reflected not in a change to a base rate such as SOFR but in a change in the spread over the base rate which is payable on the floating rate loans of the type and quality in which the Fund invests, the Fund’s net asset value could also be adversely affected. With respect to investments in fixed rate instruments, a rise in market interest rates generally causes values of such instruments to fall. The values of fixed rate instruments with longer maturities or duration are more sensitive to changes in market interest rates. As of the date of this Prospectus, the U.S has recently experienced a rising market interest rate environment, which may increase the Fund’s exposure to risks associated with rising market interest rates. Rising market interest rates have unpredictable effects on the markets and may expose debt and related markets to heightened volatility, which could reduce liquidity for certain investments, adversely affect values, and increase costs. Increased redemptions may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so and may lower returns. If dealer capacity in debt and related markets is insufficient for market conditions, it may further inhibit liquidity and increase volatility in the debt and related markets. Further, recent and potential future changes in government policy may affect interest rates.

Limited Secondary Market for Floating Rate Loans: Although the re-sale, or secondary market, for floating rate loans has grown substantially in recent years, both in overall size and number of market participants, there is no organized exchange or board of trade on which floating rate loans are traded. Instead, the secondary market for floating rate loans is a private, unregulated inter-dealer or inter-bank re-sale market. Transactions in loans typically settle on a delayed basis and typically take longer than 7 days to settle. As a result the Fund may not receive the proceeds from a sale of a floating rate loan for a significant

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period of time. Delay in the receipts of settlement proceeds may impair the ability of the Fund to meet its redemption obligations and may increase amounts the Fund may be required to borrow. It may also limit the ability of the Fund to repay debt, pay dividends, or take advantage of new investment opportunities.

Floating rate loans usually trade in large denominations. Trades can be infrequent, and the market for floating rate loans may experience substantial volatility. In addition, the market for floating rate loans has limited transparency so that information about actual trades may be difficult to obtain. Accordingly, some of the floating rate loans will be relatively illiquid.

In addition, the floating rate loans may require the consent of the borrower and/or the agent prior to sale or assignment. These consent requirements can delay or impede the Fund’s ability to sell floating rate loans and can adversely affect the price that can be obtained.

These considerations may cause the Fund to sell floating rate loans at lower prices than it would otherwise consider to meet cash needs or cause the Fund to maintain a greater portion of its assets in money market instruments than it would otherwise, which could negatively impact performance. The Fund may seek to avoid the necessity of selling assets to meet redemption requests or liquidity needs by the use of borrowings. Such borrowings, even though they are for the purpose of satisfying redemptions or meeting liquidity needs and not to generate leveraged returns, nevertheless would produce leverage and the risks that are inherent in leverage. However, there can be no assurance that sales of floating rate loans at such lower prices can be avoided.

From time to time, the occurrence of one or more of the considerations described above may create a cascading effect where the market for debt instruments (including the market for floating rate loans) first experiences volatility and then decreased liquidity. Such conditions, or other similar conditions, may then adversely affect the value of floating rate loans and other instruments, widening spreads against higher-quality debt instruments, and making it harder to sell floating rate loans at prices at which they have historically or recently traded, thereby further reducing liquidity. For example, during the global financial crisis in the second half of 2008, the average price of loans in the Morningstar LSTA US Leveraged Loan Index declined by 32% (which included a decline of 3.06% on a single day). Additionally, during the COVID-19 pandemic, the same index declined by 12.37% in March 2020 (which included a decline of 3.74% on a single day).

Declines in net asset value or other market developments (which could be more severe than these prior declines) may lead to increased redemptions, which could cause the Fund to have to sell floating rate loans and other instruments at disadvantageous prices and inhibit the ability of the Fund to retain its assets in the hope of greater stabilization in the secondary markets. In addition, these or similar circumstances could cause the Fund to sell its highest quality and most liquid floating rate loans and other investments in order to satisfy an initial wave of redemptions while leaving the Fund with a remaining portfolio of lower-quality and less liquid investments. In anticipation of such circumstances, the Fund may also need to maintain a larger portion of its assets in liquid instruments than usual. However, there can be no assurance that the Fund will foresee the need to maintain greater liquidity or that actual efforts to maintain a larger portion of assets in liquid investments would successfully mitigate the foregoing risks.

As of the date of this Prospectus, Voya Floating Rate Fund has entered into a line of credit under which it may borrow money from time to time. The amount of available borrowing under the line of credit reflects such factors as, among other things, the Investment Adviser’s expectations as to the liquidity of the Fund’s portfolio and settlement times for the loans held by the Fund, as well as anticipated growth in the size of the Fund. The cost of maintaining the line of credit will reduce the Fund’s investment return.

Liquidity for Floating Rate Loans: If a loan is illiquid, the Fund might be unable to sell the loan at a time when the manager might wish to sell, or at all. Further, the lack of an established secondary market may make it more difficult to value illiquid loans, exposing the Fund to the risk that the price at which it sells loans will be less than the price at which they were valued when held by the Fund. The risks associated with illiquid securities may be greater in times of financial stress. The Fund could lose money if it cannot sell a loan at the time and price that would be most beneficial to the Fund. The SEC has proposed amendments to Rule 22e-4 under the 1940 Act and Rule 22c-1 under the 1940 Act that, if adopted, would, among other things, cause more investments to be treated as illiquid, which could prevent the Fund from investing in securities that the Investment Adviser or Sub-Adviser believes are attractive investment opportunities.

Market Disruption and Geopolitical: The Fund is subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. Due to the increasing interdependence among global economies and markets, conditions in one country, market, or region might adversely impact markets, issuers and/or foreign exchange rates in other countries, including the United States. Wars, terrorism, global health crises and pandemics, trade disputes, tariffs and other restrictions on trade or economic sanctions, rapid technological developments (such as artificial intelligence technologies), and other geopolitical events that have led, and may continue to lead, to increased market volatility and may have adverse short- or long-term effects on U.S. and global economies and markets, generally. For example, the COVID-19 pandemic resulted

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in significant market volatility, exchange suspensions and closures, declines in global financial markets, higher default rates, supply chain disruptions, and a substantial economic downturn in economies throughout the world. The economic impacts of COVID-19 have created a unique challenge for real estate markets. Many businesses have either partially or fully transitioned to a remote-working environment and this transition may negatively impact the occupancy rates of commercial real estate over time. Natural and environmental disasters and systemic market dislocations are also highly disruptive to economies and markets. In addition, military action by Russia in Ukraine has, and may continue to, adversely affect global energy and financial markets and therefore could affect the value of the Fund’s investments, including beyond the Fund’s direct exposure to Russian issuers or nearby geographic regions. Furthermore, the prolonged conflict between Hamas and Israel, and the potential expansion of the conflict in the surrounding areas and the involvement of other nations in such conflict, such as the Houthi movement's attacks on marine vessels in the Red Sea, could further destabilize the Middle East region and introduce new uncertainties in global markets, including the oil and natural gas markets. The extent and duration of the military action, sanctions, and resulting market disruptions are impossible to predict and could be substantial. A number of U.S. domestic banks and foreign (non-U.S.) banks have experienced financial difficulties and, in some cases, failures. There can be no certainty that the actions taken by regulators to limit the effect of those financial difficulties and failures on other banks or other financial institutions or on the U.S. or foreign (non-U.S.) economies generally will be successful. It is possible that more banks or other financial institutions will experience financial difficulties or fail, which may affect adversely other U.S. or foreign (non-U.S.) financial institutions and economies. These events as well as other changes in foreign (non-U.S.) and domestic economic, social, and political conditions also could adversely affect individual issuers or related groups of issuers, securities markets, interest rates, credit ratings, inflation, investor sentiment, and other factors affecting the value of the Fund’s investments. Any of these occurrences could disrupt the operations of the Fund and of the Fund’s service providers.

Mortgage- and/or Asset-Backed Securities: Defaults on, or low credit quality or liquidity of, the underlying assets of the asset-backed (including mortgage-backed) securities may impair the value of these securities and result in losses. There may be limitations on the enforceability of any security interest or collateral granted with respect to those underlying assets, and the value of collateral may not satisfy the obligation upon default. These securities also present a higher degree of prepayment and extension risk and interest rate risk than do other types of debt instruments.

Other Investment Companies: The main risk of investing in other investment companies, including ETFs, is the risk that the value of an investment company’s underlying investments 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 Fund’s expenses. 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. In addition, shares of ETFs may trade at a premium or discount to net asset value and are subject to secondary market trading risks. Secondary markets may be subject to irregular trading activity, wide bid/ask spreads, and extended trade settlement periods in times of market stress because market makers and authorized participants may step away from making a market in an ETF’s shares, which could cause a material decline in the ETF’s net asset value.

Prepayment and Extension: Many types of debt instruments are subject to prepayment and extension risk. Prepayment risk is the risk that the issuer of a debt instrument will pay back the principal earlier than expected. This risk is heightened in a falling market interest rate environment. Prepayment may expose the Fund to a lower rate of return upon reinvestment of principal. Also, if a debt instrument subject to prepayment has been purchased at a premium, the value of the premium would be lost in the event of prepayment. Extension risk is the risk that the issuer of a debt instrument will pay back the principal later than expected. This risk is heightened in a rising market interest rate environment. This may negatively affect performance, as the value of the debt instrument decreases when principal payments are made later than expected. Additionally, the Fund may be prevented from investing proceeds it would have received at a given time at the higher prevailing interest rates. Loans typically have a 6-12 month call protection and may be prepaid partially or in full after the call protection period without penalty.

Repurchase Agreements: In the event that the other party to a repurchase agreement defaults on its obligations, the Fund would generally seek to sell the underlying security serving as collateral for the repurchase agreement. However, the value of collateral may be insufficient to satisfy the counterparty's obligation and/or the Fund may encounter delay and incur costs before being able to sell the security. Such a delay may involve loss of interest or a decline in price of the security, which could result in a loss. In addition, if the Fund is characterized by a court as an unsecured creditor, it would be at risk of losing some or all of the principal and interest involved in the transaction.

Sovereign Debt: Sovereign debt is issued or guaranteed by foreign (non-U.S.) government entities. Investments in sovereign debt are subject to the risk that a government entity may delay payment, restructure its debt, or refuse to pay interest or repay principal on its sovereign debt due to cash flow problems, insufficient foreign currency reserves, political considerations, social changes, the relative size of its debt position to its economy, or its failure to put in place economic reforms required

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by the International Monetary Fund or other multilateral agencies. If a government entity defaults, it may ask for more time in which to pay or for further loans. There is no legal process for collecting amounts owed on sovereign debt, such as bankruptcy proceedings, that a government does not pay.

Structured Notes: Structured notes are investments, the interest rate or principal of which is linked to currencies, interest rates, commodities, indices, or other financial indicators (each, a “reference instrument”). Structured notes may entail a greater degree of market risk than other types of debt instruments because the investor also bears the risk of the reference instrument. Structured notes may be more volatile, less liquid, and more difficult to accurately price than less complex securities and other types of debt instruments. In addition, structured notes are subject to other risks, including interest rate risk, credit risk, and liquidity risk.

Valuation of Loans: The Fund values its assets every day the New York Stock Exchange is open for regular trading. However, because the secondary market for floating rate loans is limited, it may be difficult to value loans, exposing the Fund to the risk that the price at which it sells loans will be less than the price at which they were valued when held by the Fund. Reliable market value quotations may not be readily available for some loans, and determining the fair valuation of such loans may require more research than for securities that trade in a more active secondary market. In addition, elements of judgment may play a greater role in the valuation of loans than for more securities that trade in a more developed secondary market because there is less reliable, objective market value data available. If the Fund purchases a relatively large portion of a loan, the limitations of the secondary market may inhibit the Fund from selling a portion of the loan and reducing its exposure to a borrower when the manager deems it advisable to do so. Even if the Fund itself does not own a relatively large portion of a particular loan, the Fund, in combination with other similar accounts under management by the same portfolio managers, may own large portions of loans. The aggregate amount of holdings could create similar risks if and when the portfolio managers decide to sell those loans. These risks could include, for example, the risk that the sale of an initial portion of the loan could be at a price lower than the price at which the loan was valued by the Fund, the risk that the initial sale could adversely impact the price at which additional portions of the loan are sold, and the risk that the foregoing events could warrant a reduced valuation being assigned to the remaining portion of the loan still owned by the Fund.

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 and an additional index with investment characteristics similar to those of the Fund for the same period. In 2024, the Investment Adviser changed the Fund’s primary benchmark from the Morningstar LSTA US Leveraged Loan Index to the Bloomberg U.S. Aggregate Bond Index in accordance with changes to regulatory disclosure requirements. The Fund continues to use the Morningstar LSTA US Leveraged Loan Index as an additional benchmark that the Investment Adviser believes more closely reflects the Fund’s principal investment strategies. 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 A shares. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. Performance for other share classes would differ to the extent they have differences in their fees and expenses. The Fund's past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to https://individuals.voya.com/literature or call 1-800-992-0180.

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

Best quarter:	2nd Quarter 2020	7.73%
Worst quarter:	1st Quarter 2020	-14.81%
Year-to-date total return:	June 30, 2025	2.13%

Average Annual Total Returns %
(for the periods ended December 31, 2024)

		1 Yr	5 Yrs	10 Yrs	Since Inception	Inception Date
Class A before taxes	%	6.17	2.69	2.94	N/A	8/17/2010
After tax on distributions	%	1.55	0.08	0.73	N/A
After tax on distributions with sale	%	3.55	0.90	1.25	N/A
Bloomberg U.S. Aggregate Bond Index1	%	1.25	-0.33	1.35	N/A
Morningstar LSTA US Leveraged Loan Index1	%	8.95	5.86	5.15	N/A
Class C before taxes	%	7.07	2.44	2.59	N/A	8/17/2010
Bloomberg U.S. Aggregate Bond Index1	%	1.25	-0.33	1.35	N/A
Morningstar LSTA US Leveraged Loan Index1	%	8.95	5.86	5.15	N/A
Class I before taxes	%	9.26	3.49	3.48	N/A	8/17/2010
Bloomberg U.S. Aggregate Bond Index1	%	1.25	-0.33	1.35	N/A
Morningstar LSTA US Leveraged Loan Index1	%	8.95	5.86	5.15	N/A
Class R before taxes	%	8.59	2.96	2.96	N/A	8/17/2010
Bloomberg U.S. Aggregate Bond Index1	%	1.25	-0.33	1.35	N/A
Morningstar LSTA US Leveraged Loan Index1	%	8.95	5.86	5.15	N/A
Class W before taxes	%	9.12	3.48	3.47	N/A	8/17/2010
Bloomberg U.S. Aggregate Bond Index1	%	1.25	-0.33	1.35	N/A
Morningstar LSTA US Leveraged Loan Index1	%	8.95	5.86	5.15	N/A

The index returns do not reflect deductions for fees, expenses, or taxes.

After-tax returns are calculated using the historical highest individual U.S. 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. After-tax returns are shown for Class A shares only. After-tax returns for other classes will vary.

Portfolio Management

Investment Adviser

Voya Investments, LLC

Sub-Adviser

Voya Investment Management Co. LLC

Portfolio Managers
Mohamed Basma, CFA Portfolio Manager (since 10/22)	Randall Parrish, CFA Portfolio Manager (since 05/23)

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Voya Floating Rate Fund

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 https://individuals.voya.com/product/mutual-fund/prospectuses-reports; by writing to us at Voya Investment Management, P.O. Box 534480, Pittsburgh, Pennsylvania 15253-4480; or by calling us at 1-800-992-0180.

Minimum Initial Investment $ by share class

Class		A, C	I	R	W
Non-retirement accounts	$	1,000	250,000	None	1,000
Retirement accounts	$	250	250,000	None	1,000
Certain omnibus accounts	$	250	None	None	None
Pre-authorized investment plan	$	1,000	250,000	None	1,000

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: (i) qualified retirement plans or other defined contribution plans and defined benefit plans that invest in the Voya funds through omnibus arrangements; (ii) employees of Voya Investment Management Co. LLC (“Voya IM”) who are eligible to participate in “notional” bonus programs sponsored by Voya IM; or (iii) (a) investors transacting in Class I shares through brokerage platforms that invest in the Voya funds’ Class I shares through omnibus accounts and have agreements with the distributor to offer such shares and (b) such brokerage platforms’ omnibus accounts.

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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Voya Floating Rate Fund

Bloomberg Index Data Source: Bloomberg Index Services Limited. BLOOMBERG® is a trademark and service mark of Bloomberg Finance L.P. and its affiliates (collectively “Bloomberg”). Bloomberg or its licensors own all proprietary rights in the Bloomberg Indices. Bloomberg does not approve or endorse this material, or guarantee the accuracy or completeness of any information herein, or make any warranty, express or implied, as to the results to be obtained therefrom and, to the maximum extent allowed by law, shall not have any liability or responsibility for injury or damages arising in connection herewith.

Voya Floating Rate Fund is not sponsored, endorsed, sold or promoted by Morningstar, Inc. (“Morningstar”), any of its affiliates or subsidiaries, any of its direct or indirect information providers or any other third party involved in, or related to, compiling, computing or creating any Morningstar Index (collectively, “Morningstar Parties”). The Morningstar Indexes are the exclusive property of Morningstar. Morningstar and the Morningstar Index names are service marks or trademarks of Morningstar and have been licensed for certain purposes by the Investment Adviser and its affiliates. None of the Morningstar Parties make any representation or warranty, express or implied, to the owners of Voya Floating Rate Fund or any member of the public regarding the advisability of investing in Voya Floating Rate Fund or the ability of any Morningstar Index to track corresponding market performance. Morningstar is the licensor of the Morningstar Indexes which are determined, composed and calculated by Morningstar without regard to the Investment Adviser and its Affiliates or Voya Floating Rate Fund. None of the Morningstar Parties has any obligation to take the needs of the Investment Adviser and its Affiliates or the owners of Voya Floating Rate Fund into consideration in determining, composing or calculating the Morningstar Indexes. None of the Morningstar Parties are responsible for or has participated in the determination of the prices and amount of Voya Floating Rate Fund or the timing of the issuance or sale of Voya Floating Rate Fund or in the determination or calculation of the equation by which Voya Floating Rate Fund is converted into cash. None of the Morningstar Parties have any obligation or liability in connection with the administration, marketing or trading of Voya Floating Rate Fund. THE MORNINGSTAR PARTIES EXPRESSLY DISCLAIM ANY WARRANTY AROUND THE ACCURACY, COMPLETENESS AND/OR TIMELINESS OF THE MORNINGSTAR INDEXES OR ANY DATA INCLUDED THEREIN AND SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS, OR INTERRUPTIONS THEREIN. THE MORNINGSTAR PARTIES MAKE NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY THE INVESTMENT ADVISER, ITS AFFILIATES, OWNERS OR USERS OF VOYA FLOATING RATE FUND, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE MORNINGSTAR INDEXES OR ANY DATA INCLUDED THEREIN. THE MORNINGSTAR PARTIES MAKE NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE MORNINGSTAR INDEXES OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL THE MORNINGSTAR PARTIES HAVE ANY LIABILITY FOR ANY SPECIAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

Summary Prospectus

167955 (0725-073125)