Summary Prospectus by Investment Company (Form 497K)

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

Before you invest, you may want to review the fund's prospectus, which contains more information about the fund and its risks. You can find the fund's prospectus, shareholder reports, and other information about the fund online at troweprice.com/prospectus. You can also get this information at no cost by calling 1-800-638-5660, by sending an e-mail request to [email protected], or by contacting your financial intermediary. This Summary Prospectus incorporates by reference the fund's prospectus, dated March 1, 2026, as amended or supplemented, and Statement of Additional Information, dated March 1, 2026, as amended or supplemented.

Summary Prospectus March 1, 2026
		T. ROWE PRICE
		Spectrum Income Fund
RPSIX TSPNX		Investor Class I Class

Summary

1

Investment Objective(s)

The fund seeks a high level of current income with moderate share price fluctuation.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table or example below.

Fees and Expenses of the Fund

	Investor Class		I Class
Shareholder fees (fees paid directly from your investment)
Maximum account fee	$20	a	-
Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Management fees	0.61	%	0.46	%
Other expenses	-		-
Acquired fund fees and expenses	0.08		0.08
Total annual fund operating expenses	0.69	b	0.54	b
Fee waiver/expense reimbursement	(0.08	)	(0.08	)
Total annual fund operating expenses after fee waiver/expense reimbursement	0.61	b	0.46	b

a	Subject to certain exceptions and account minimums, accounts are charged an annual $20 fee.
b	The figures shown in the fee table do not match the "Ratios to average net assets" shown in the Financial Highlights table, as those figures do not include acquired fund fees and expenses.

Example This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

	1 Year		3 Years		5 Years		10 Years
Investor Class	$	62	$	195	$	340	$	762
I Class		47		148		258		579

Portfolio Turnover The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund's 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 88.4% of the average value of its portfolio.

T. Rowe Price

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Investments, Risks, and Performance

Principal Investment Strategies

The fund seeks to achieve its objective by primarily investing in a mix of other T. Rowe Price fixed income funds (underlying funds) that seek to generate income. The fund broadly diversifies its assets among underlying funds representing specific market segments by normally investing in a variety of U.S. and international bond funds, including emerging market bond funds, and money market funds. In addition, the fund may invest in individual securities on a limited basis. The goal is to maintain broad exposure to several markets in an attempt to reduce the impact of markets that are declining and to benefit from strong performance in particular market segments over time.

The various underlying funds and any individual securities focus on high-quality U.S. and international bonds; high-yield bonds ("junk" bonds); short- and long-term securities; mortgage-backed securities, asset-backed securities, and securitized instruments, which are vehicles backed by pools of assets such as mortgages, loans, or other receivables; inflation-linked securities; bank loans; and other instruments that produce income.

The adviser decides how much of the fund's assets to allocate to particular underlying funds and asset classes based on the outlook for, and on the relative valuations of, the underlying funds and the various markets and asset classes in which they invest. The adviser weighs such factors as the outlook for inflation and the economy; expected interest rate movements; currency valuations; and the yield advantage that lower-rated bonds may offer over investment-grade bonds.

The adviser periodically reviews the mix of underlying funds and the percentages allocated to them. The fund may sell shares of the underlying funds for a variety of reasons, including to realize gains, limit losses, or redeploy assets into more promising opportunities.

The fund may use a variety of derivatives, such as futures, forwards, and swaps for a number of purposes, such as for exposure or hedging. Specifically, the fund uses interest rate futures, interest rate swaps, interest rate swaptions, forward currency exchange contracts, credit default swaps, credit default swaptions, credit default swaps indexes (CDX), index futures, and mortgage-backed securities on a delayed delivery or forward commitment basis through the "to-be-announced" (TBA) market. Such instruments are typically used as a means of adjusting the fund's duration and gaining exposure to certain types of bonds.

Interest rate futures and interest rate swaps are typically used as an efficient means of managing the fund's exposure to interest rate changes and to adjust the portfolio's duration. Interest rate swaptions are primarily used in an effort to manage exposure to changes in interest rates or to adjust portfolio duration. Forward currency exchange contracts can be used to protect the fund's non-U.S. dollar-denominated securities from adverse currency movements. Credit default swaps are typically used to protect the value of certain portfolio holdings as an alternative to cash bonds, and to manage the fund's overall credit risk exposure. Credit default swaptions are typically used in an effort to protect the value of certain portfolio holdings or to manage the fund's overall exposure to changes in credit quality. A CDX allows the fund to manage credit risk or take a position on a basket of credit entities (such as credit default swaps or a reference index) rather than transacting in a single-name credit default swap. Index futures are typically used as an efficient means of gaining exposure to a particular segment of the market, as well as to serve as a cash management tool and to enhance the fund's returns.

SUMMARY

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The fund may also purchase or sell mortgage-backed securities on a delayed delivery or forward commitment basis through the TBA market. With TBA transactions, the particular securities to be delivered are not identified at the trade date, but the delivered securities must meet specified terms and standards. The fund will generally enter into TBA transactions with the intention of taking possession of the underlying mortgage-backed securities. However, in an effort to obtain underlying mortgage-backed securities on more preferable terms or to enhance returns, the fund may extend the settlement by entering into "dollar roll" transactions in which the fund sells mortgage-backed securities to a dealer and simultaneously agrees to purchase substantially similar securities in the future at a predetermined price. The fund also expects to engage in short sales of TBA mortgages, including short sales on TBA mortgages the fund does not own, to potentially enhance returns or manage risk.

Principal Risks

As with any fund, there is no guarantee that the fund will achieve its objective(s). The fund's share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund, which may be even greater in unfavorable or uncertain market conditions, are summarized as follows:

Active management/Asset allocation: The fund's overall level of risk will directly correspond to the risks of the underlying funds in which it invests. By investing in many underlying funds, the fund has partial exposure to the risks of different areas of the market. However, the selection of the underlying funds and the allocation of the fund's assets among the various asset classes, market sectors, and investment styles represented by those underlying funds could cause the fund to underperform other funds with a similar benchmark or investment objective(s).

Investments in other funds: The fund bears the risk that its underlying funds will fail to successfully employ their investment strategies. One or more underlying fund's underperformance or failure to meet its investment objective(s) as intended could cause the fund to underperform similarly managed funds.

Market conditions: The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by an underlying fund, particular industries, or the overall securities markets. A variety of factors can increase the volatility of an underlying fund's holdings and markets generally, including geopolitical developments (such as trade and tariff arrangements, sanctions, and cybersecurity attacks), recessions, inflation, rapid interest rate changes, war, military conflict, acts of terrorism, natural disasters, and outbreaks of infectious illnesses or other widespread public health issues (such as the coronavirus pandemic) and related governmental and public responses. Certain events may cause instability across global markets, including reduced liquidity and disruptions in trading markets, while some events may affect certain geographic regions, countries, sectors, and industries more significantly than others. Government intervention in markets may impact interest rates, market volatility, and security pricing. These adverse developments may cause broad declines in market value due to short-term market movements or for significantly longer periods during more prolonged market downturns.

T. Rowe Price

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Fixed income exposure: An underlying fixed income fund's share price can fall because of various factors affecting bonds or due to general weakness in the overall fixed income markets. The fund invests in underlying funds with varying levels of credit risk, interest rate risk, inflation risk, and liquidity risk. At times, participants in fixed income markets may develop concerns about the ability of certain issuers to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt instruments to facilitate an orderly market. Those concerns could cause increased volatility and reduced liquidity in particular securities or in the overall fixed income markets and the related derivatives markets, which could hamper an underlying fund's ability to sell the bonds or other debt instruments in which it invests or to find and purchase suitable investments.

Interest rates: A rise in interest rates typically causes the price of a fixed rate debt instrument to fall and its yield to rise. Conversely, a decline in interest rates typically causes the price of a fixed rate debt instrument to rise and the yield to fall. The prices and yields of inflation-linked bonds are directly impacted by the rate of inflation as well as changes in interest rates. Generally, underlying bond funds with longer weighted average maturities and durations carry greater interest rate risk. Duration, which is expressed in years, is a calculation that estimates the price sensitivity of a bond or bond fund to changes in interest rates (for example, if interest rates were to rise 1%, a bond or bond fund with a duration of five years would be expected to lose approximately 5% of its value). Changes in monetary policy made by central banks and/or governments are likely to affect the interest rates or yields of securities in which an underlying fund invests.

Prepayments and extensions: Underlying funds that invest in mortgage-backed securities, certain asset-backed securities, or any debt instrument with an embedded call option are subject to prepayment risks because the principal on the security may be prepaid at any time, which could reduce the security's yield and market value. The rate of prepayments tends to increase as interest rates fall, which could cause the average maturity of the underlying fund's portfolio to shorten. Extension risk may result from a rise in interest rates, which tends to make mortgage-backed securities, asset-backed securities, and other callable debt instruments more volatile.

Junk bonds: Investments in bonds that are rated below investment grade, commonly referred to as junk bonds, and loans that are rated below investment grade, expose an underlying fund to greater volatility and credit risk than investments in securities that are rated investment-grade. As a result, bonds and loans rated below investment grade carry a higher risk of default and should be considered speculative.

Credit quality: An issuer of a debt instrument held by an underlying fund could suffer an adverse change in financial condition that results in a payment default (failure to make scheduled interest or principal payments), rating downgrade, or inability to meet a financial obligation. The fund's exposure to credit risk is increased to the extent the fund invests in underlying funds that hold securities that are not considered investment-grade. Holdings that are rated below investment grade carry greater risk of default and erratic price swings due, in part, to potentially adverse changes in the credit quality of the issuer.

Summary

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Foreign investing: Underlying funds with exposure to foreign investments carry greater risk because non-U.S. securities tend to be more volatile and have lower overall liquidity and trading volume than investments in U.S. securities and may lose value because of adverse local, political, social, or economic developments overseas, or due to changes in the exchange rates between foreign currencies and the U.S. dollar. Further, securities of non-U.S. issuers are subject to trading markets with potential governmental interference, varying regulatory, auditing, and accounting standards, and settlement and clearance practices that differ from those of U.S. issuers. Investment in non-U.S. securities also carries currency risk. Any attempts to hedge currency risk could be unsuccessful. Such investments may have higher transaction costs compared with U.S. markets. Investments in emerging market countries are subject to greater risk and overall volatility than investments in other developed markets.

Emerging markets: Investing in underlying funds that hold securities of issuers in emerging market countries involves greater risk and overall volatility than investing in underlying funds that hold securities of issuers in the U.S. and other developed markets. Emerging market countries tend to have economic structures that are less diverse and mature, less developed legal and regulatory regimes, and political systems that are less stable, than those of developed countries. In addition to the risks normally associated with investing outside the U.S., emerging markets are more susceptible to governmental interference, political and economic uncertainty, local taxes and restrictions on an underlying fund's investments, less efficient trading markets with lower overall liquidity, and more volatile currency exchange rates.

Derivatives: The use of derivatives exposes the fund to additional volatility and potential losses and the fund may not achieve the purpose of using the derivative. A derivative involves risks different from, and possibly greater than, the risks associated with investing directly in the reference or assets on which the derivative is based, including liquidity risk, valuation risk, correlation risk, market risk, interest rate risk, leverage risk, counterparty and credit risk, operational risk, management risk, legal risk, and regulatory risk. Derivatives can be highly volatile, illiquid, and difficult to value, and changes in the value of a derivative may not properly correlate with changes in the value of the underlying asset, reference rate, or index. The fund could be exposed to significant losses if it is unable to close a derivatives position due to the lack of a liquid secondary trading market. The prices of derivatives may move in unexpected ways, especially in abnormal market conditions. Derivatives also expose the fund to settlement risk, such as if the fund is required to acquire, buy, or sell the underlying reference or asset at an undesirable price, has challenges with offsetting transactions, or risks associated with cash settlement. Certain derivatives are also subject to counterparty risk, which is the risk that the derivative counterparty will not fulfill its contractual obligations. The use of derivatives includes the risk of potential operational issues. Derivatives are exposed to legal risks, such as the legality or enforceability of a contract. The adviser may not be able to accurately predict the direction of prices, economic factors, or other associated risks which could cause loss in value or impair the fund's efforts to reduce overall volatility. New regulations may make derivatives more costly, limit availability, or otherwise affect their value or performance.

T. Rowe Price

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TBAs and dollar rolls: Although the securities that are delivered in TBA transactions must meet certain standards, there is a risk that the actual securities received by the fund may be less favorable than what was anticipated when entering into the transaction. TBA transactions are collateralized but they still involve the risk that a counterparty will fail to deliver the security, exposing the fund to potential losses. Whether or not the fund takes delivery of the securities at the termination date of a TBA transaction, it will nonetheless be exposed to changes in the value of the underlying investments during the term of the agreement. Forward settling securities, such as TBAs, involve leverage which may magnify investment risks and can cause losses to be realized more quickly. In addition, the fund's portfolio turnover rate and transaction costs are increased when the fund enters into dollar roll transactions.

Bank loans: Underlying funds that invest in bank loans expose the fund to additional risks beyond those normally associated with more traditional debt instruments. An underlying fund's ability to receive payments in connection with a loan depends primarily on the financial condition of the borrower and whether or not a loan is secured by collateral, although there is no assurance that the collateral securing a loan will be sufficient to satisfy the loan obligation. In addition, bank loans often have contractual restrictions on resale, which can delay the sale and adversely impact the sale price and they have significantly longer settlement periods than more traditional investments. Bank loans often involve borrowers whose financial condition is troubled or highly leveraged, which increases an underlying fund's risk that the fund may not receive its proceeds in a timely manner or that the fund may incur losses in order to pay redemption proceeds to its shareholders.

Liquidity: An underlying fund may not be able to meet requests to redeem shares without significant dilution of the remaining shareholders' interests in the fund. A particular investment or an entire market segment may become less liquid or even illiquid, sometimes abruptly, which could limit an underlying fund's ability to purchase or sell holdings in a timely manner at a desired price. Reduced liquidity can result from a number of events, such as limited trading activity, reductions in bond inventory, and rapid or unexpected changes in interest rates. Large redemptions may also have a negative impact on an underlying fund's overall liquidity.

Cybersecurity breaches: The fund could be harmed by intentional cyberattacks and other cybersecurity breaches, including unauthorized access to the fund's assets, confidential information, or other proprietary information. In addition, a cybersecurity breach could cause one of the fund's service providers or financial intermediaries to suffer unauthorized data access, data corruption, or loss of operational functionality.

Performance

The following performance information provides some indication of the risks of investing in the fund. The fund's performance information represents only past performance (before and after taxes) and is not necessarily an indication of future results.

The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund's Investor Class. Returns for other share classes vary since they have different expenses.

SUMMARY

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SPECTRUM INCOME FUND

Calendar Year Returns

		Quarter Ended	Total Return			Quarter Ended	Total Return
	Best Quarter	6/30/20	7.99%		Worst Quarter	3/31/20	-9.30%

The following table shows the average annual total returns for each class of the fund that has been in operation for at least one full calendar year. The fund's performance information included in the table is compared with a regulatory required index that represents an overall securities market (Bloomberg U.S. Aggregate Bond Index). In addition, the table may also include one or more indexes that align to the fund's investment strategy.

In addition, the table shows hypothetical after-tax returns to demonstrate how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA. After-tax returns are shown only for the Investor Class and will differ for other share classes.

T. Rowe Price

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Average Annual Total Returns

			Periods ended
			December 31, 2025
												Since		Inception
			1 Year			5 Years			10 Years			inception		date
	Investor Class													06/29/1990
		Returns before taxes	7.83	%		2.11	%		4.00	%		-	%
		Returns after taxes on distributions	5.40			0.29			2.32			-
		Returns after taxes on distributions and sale
		of fund shares	4.59			0.87			2.42			-
	I Class													05/03/2021
		Returns before taxes	7.99			-			-			2.09
	Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)
			7.30			-0.36			2.01			0.17	a
	Lipper Multi-Sector Income Funds Average
			7.53			2.19			3.76			2.23	b

	a	Return since 5/3/21.
	b	Return since 4/30/21.

Updated performance information is available through troweprice.com.

Management

Investment Adviser T. Rowe Price Associates, Inc. (T. Rowe Price or Price Associates)

Name	Title	Managed Fund Since	Joined Investment Adviser
Christina Noonan	Co-Portfolio Manager and Cochair of Investment Advisory Committee	2025	2015
Charles Shriver	Co-Portfolio Manager and Cochair of Investment Advisory Committee	2011	1991
Toby Thompson	Co-Portfolio Manager and Cochair of Investment Advisory Committee	2020	1993*

*

Mr. Thompson originally joined T. Rowe Price in 1993 and returned to T. Rowe Price in 2010.

Purchase and Sale of Fund Shares

The Investor Class generally requires a $2,500 minimum initial investment ($1,000 minimum initial investment if opening an IRA, a custodial account for a minor, or a small business retirement plan account). Additional purchases generally require a $100 minimum. These investment minimums generally are waived for financial intermediaries and certain employer-sponsored retirement plans submitting orders on behalf of their customers.

The I Class requires a $500,000 minimum initial investment per fund per account registration, although the initial investment minimum generally is waived or reduced for financial intermediaries, eligible retirement plans, certain accounts for which T. Rowe Price or its affiliates have discretionary investment authority, qualifying directly held accounts, and certain other accounts.

Summary

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For investors holding shares of the fund directly with T. Rowe Price, you may purchase, redeem, or exchange fund shares by mail; by telephone (1-800-225-5132 for IRAs and nonretirement accounts; 1-800-492-7670 for small business retirement plans; and 1-800-638-8790 for institutional investors and financial intermediaries); or, for certain other accounts, by accessing your account online through troweprice.com.

If you hold shares through a financial intermediary or retirement plan, you must purchase, redeem, and exchange shares of the fund through your intermediary or retirement plan. You should check with your intermediary or retirement plan to determine the investment minimums that apply to your account.

Tax Information

The fund declares dividends, if any, daily and pays them on the first business day of each month. Any capital gains are declared and paid annually, usually in December. Redemptions or exchanges of fund shares and distributions by the fund, whether or not you reinvest these amounts in additional fund shares, generally may be taxed as ordinary income or capital gains unless you invest through a tax-deferred account (in which case you will be taxed upon withdrawal from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the fund through a broker-dealer or other financial intermediary (such as a 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 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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T. Rowe Price Associates, Inc. 1307 Point Street Baltimore, MD 21231	F88-045 3/1/26