Summary Prospectus by Investment Company (Form 497K)

The Fund invests in a wide variety of debt instruments and income-producing securities. These include (1) debt obligations issued or guaranteed by the U.S. Government and foreign governments and their agencies and instrumentalities, political subdivisions of foreign governments (such as provinces and municipalities), and supranational organizations (such as the World Bank); (2) debt securities, loans and commercial paper issued by U.S. and foreign companies; (3) U.S. and foreign mortgage-related securities, including collateralized mortgage-backed obligations, credit risk transfer securities and commercial mortgage-backed obligations; (4) U.S. and foreign asset-backed debt securities, including collateralized debt obligations and collateralized loan obligations; (5) municipal securities, which are debt obligations issued by state and local governments, territories and possessions of the United States, regional governmental authorities, and their agencies and instrumentalities, the interest on which may, or may not, be exempt from Federal income tax; (6) convertible bonds and preferred stock; and (7) real estate investment trusts.

The Fund invests in both investment grade debt securities and securities rated below investment grade. Investment grade debt securities are rated within the four highest grades by at least one Nationally Recognized Statistical Rating Organization, or are securities determined by Payden to be of comparable quality.

The Fund may invest up to 40% of its total assets in securities issued by governments, agencies and instrumentalities of emerging market countries, and other issuers organized or headquartered in emerging market countries.

The Fund invests in debt securities of any maturity and there is no limit on the Fund's minimum or maximum average portfolio maturity.

The Fund invests in securities payable in U.S. dollars and foreign currencies. The Fund may hedge this foreign currency exposure to the U.S. dollar.

The Fund may invest up to 30% of its total assets in equity securities of U.S. and foreign companies.

The Fund may invest in derivative instruments, such as option contracts on individual stocks, indices or exchange-traded funds, futures contracts, currency forward contracts and swap agreements, including interest rate swaps, principally to hedge market risk, but also to efficiently add specific sector, currency, interest rate or style exposure to the Fund.

To gain exposure to various markets consistent with the investment strategies of the Fund, the Fund may invest in exchange-traded funds ("ETFs") and other investment companies, including for example, other open-end or closed-end investment companies, and including investment companies for which the Adviser provides investment management services (affiliated funds).

The Fund may be suitable for cash balance pension plans.

Interest Rates. To the extent that the Fund invests in debt securities, the income on and value of your shares in the Fund will fluctuate along with interest rates. When interest rates rise, the market prices of the debt securities the Fund owns usually decline. When interest rates fall, the prices of these securities usually increase. The impact of interest rate changes on floating rate investments is typically mitigated by the periodic interest rate reset of the investments. Generally, the market price of debt securities with longer maturities will fluctuate more in response to changes in interest rates than the market price of shorter-term securities. The Fund faces a heightened risk that interest rates may rise. The negative impact on fixed income securities resulting from such rate increases could be swift and significant. A general rise in interest rates may cause investors to move out of fixed income securities on a large scale, which could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions from the Fund. Factors such as government policy, inflation, the economy, and market for bonds can impact interest rates and yields.

Extension Risk. Rising interest rates can cause the average maturity of the Fund's holdings of mortgage-backed securities to lengthen unexpectedly due to a drop in prepayments. This would increase the sensitivity of the Fund to rising rates, and could cause certain of the Fund's investments to decline in value more than they would have declined due to the rise in interest rates alone.

Credit Risk. Debt securities are also subject to credit risk. Credit risk is the risk that the issuer of a debt security will be unable to make interest or principal payments on time and the related risk that the value of a debt security may decline because of concerns about the issuer's ability or willingness to make such payments. A debt security's credit rating reflects the credit risk associated with the debt obligation. Generally, higher-rated debt securities involve lower credit risk than lower-rated debt securities. Credit risk is often higher for corporate, mortgage-backed, asset-backed and foreign government debt securities than for U.S. Government debt securities.

Market Events Risk. The value of the Fund's securities may increase or decrease, rapidly or unpredictably. Some factors that may affect securities markets include changes in general market conditions, overall economic trends or events, geopolitical developments (such as trade and tariff arrangements, sanctions, and cybersecurity attacks), governmental actions or intervention, threat of a U.S. government shutdown, a downgrade of the ratings of U.S. government debt obligations, actions taken by the U.S. Federal Reserve or foreign central banks, market disruptions caused by trade disputes, labor strikes, political and social unrest, or other factors, recessions, armed conflict, investor sentiment, and the global and domestic effects of natural disasters and pandemics. Recently, there have been inflationary price movements, which have caused the fixed income securities markets to experience heightened levels of interest rate volatility and liquidity risk. In response to high inflation, the U.S. Federal Reserve increased interest rates in an attempt to slow economic growth, and it may continue to raise interest rates in the future. This and other changes in monetary and fiscal policy may not work as intended, particularly if the efforts are perceived by investors as being unlikely to achieve the desired results. Economies and financial markets throughout the world are increasingly interconnected. Economic, financial or political events, trading and tariff arrangements, labor disputes, public health events, terrorism, natural disasters, war, and other circumstances in one country or region could have profound impacts on global economies or markets. As a result, whether or not the Fund invests in securities of issuers located in or with significant exposure to the countries directly affected, the value and liquidity of the Fund's investments may be negatively affected.

Liquidity Risk. Some investments may be difficult to purchase or sell, particularly during times of market instability, or due to adverse changes in the conditions of a particular issuer. In addition, the Fund may not receive proceeds from the sale of certain securities for an extended period of time, which in some cases could exceed several weeks or longer. The Fund will not receive sales proceeds until settlement occurs, which may constrain the Fund's ability to meet redemption requests or other obligations. Illiquid assets may also be difficult to value. If the Fund must sell illiquid assets to meet redemption requests or other cash needs, the Fund may be unable to sell such assets at an advantageous time or price or achieve its desired level of exposure to certain market segments. Liquidity risk may result from the lack of an active market, as well as the reduced number and capacity of traditional market participants to make a market in fixed income securities, for instance, when there are few, if any, interested buyers or sellers or when dealers are unwilling or unable to make a market for certain securities. As a general matter, dealers may have less willingness to make markets for fixed income securities. Certain dealers may also reduce their inventories of certain securities in response to federal banking regulations, which may further decrease the Fund's ability to buy or sell such securities. Liquidity risk is likely to be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds are higher than normal.

Mortgage-Backed/Asset-Backed Securities. Investing in mortgage-backed and asset-backed securities poses additional risks, principally driven by changes in interest rates. When interest rates increase the market values of mortgage-backed securities decline. At the same time, mortgage refinancings and prepayments slow, which lengthens the effective duration of these securities. As a result, the negative effect of increasing interest rates on the market value of mortgage-backed securities is usually more pronounced than it is for other types of fixed income securities, potentially increasing the volatility of the Fund. Conversely, many mortgage-backed securities may be prepaid prior to maturity and when interest rates decline, while the value of such securities may increase, the rate of prepayment also tends to increase, which shortens the effective duration of the securities. Mortgage-backed securities are also subject to the risk that underlying borrowers will be unable to meet their obligations, or that the value of property that secures the mortgage may decline in value and be insufficient, upon foreclosure, to repay the associated loan. Investments in asset-backed securities are subject to similar risks.

Below Investment Grade Credit. Below investment grade debt securities are speculative and involve a greater risk of default and price change due to changes in the issuer's creditworthiness. The market prices of these debt securities may fluctuate more than the market prices of investment grade debt securities and may decline significantly in periods of general economic difficulty.

Foreign Investments. Investing in foreign securities poses additional risks. The performance of foreign securities can be adversely affected by the different political, regulatory and economic environments in countries where the Fund invests. Fluctuations in foreign currency exchange rates may also adversely affect the value of foreign debt securities in which the Fund has invested. The value of the Fund's

Emerging Markets. The risks of foreign investing are heightened for securities of issuers in emerging market countries. Emerging market countries tend to have economic structures that are less diverse and mature, and political systems that are less stable, than those of developed countries. In addition to all of the risks of investing in foreign developed markets, emerging markets are more susceptible to governmental interference, local taxes being imposed on foreign investments, restrictions on gaining access to sales proceeds, and less liquid and efficient trading markets.

Equity Securities. Investing in equity securities poses certain risks, including a sudden decline in a holding's share price, or an overall decline in the stock market. The value of the Fund's investment in any such securities will fluctuate on a day-to-day basis with movements in the stock market, as well as in response to the activities of the individual companies whose equity securities the Fund owns. Moreover, purchasing stocks perceived to be undervalued brings additional risks. For example, the issuing company's condition may worsen instead of improve, or the pace and extent of any improvement may be less than expected.

Derivatives. As indicated above, even though the Fund may use derivative instruments mainly as a hedging mechanism, the use of derivative instruments, such as options, futures or swaps, involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other more traditional instruments. For example, the use of a derivative instrument involves the risk that the Fund may sustain a loss due to the failure of the counterparty to the contract to make required payments or to otherwise comply with the contract's terms. Also, because many derivatives have a leverage component, adverse changes in the value or level of the underlying asset, reference rate or index can result in a loss substantially greater than the amount invested in the derivative itself. As noted above in the "Principal Investment Strategies" discussion, the Fund expects in particular to use currency contracts, options contracts, futures contracts and swap agreements. To the extent that the Fund invests in securities denominated in foreign currencies, a change in the value of any such currency against the U.S. dollar will result in a corresponding change in the U.S. dollar value of the Fund's assets denominated in that currency. Such changes will also affect the Fund's income. The value of the Fund's assets may also be affected significantly by currency restrictions and exchange control regulations enacted from time to time. Turning to futures or options contracts, a purchase or sale of a futures or options contract may result in losses in excess of the amount invested in the futures or options contract. In addition, there can be no guarantee that there will be a correlation between price movements in the hedging vehicle and in the Fund securities being hedged. Similarly, there are significant differences between the securities markets and futures markets that could result in an imperfect correlation between the markets, causing a given hedge not to achieve its objectives. With respect to interest rate swaps, a key risk is that Payden, as the Fund's investment adviser, could incorrectly forecast interest rates. If rates do not move as expected, the Fund might have been in a better position if it had not entered into the transaction at all.

Investment Company and Exchange-Traded Fund Risk.Investing in an investment company or ETF presents the risk that the investment company or ETF in which the Fund invests will not achieve its investment objective or execute its investment strategies effectively or that significant purchase or redemption activity by shareholders of such an investment company might negatively affect the value of the investment company's shares.

Affiliated Fund Risk. When the Adviser invests Fund assets in an investment company that is also managed by the Adviser, the risk presented is that, due to its own financial interest or other business considerations, the Adviser may have had an incentive to make that investment in lieu of investments by the Fund directly in portfolio securities, or in lieu of investment in investment companies sponsored or managed by others.

Redemption Risk. The Fund may experience heavy redemptions that could cause the Fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. Redemption risk is greater to the extent that the Fund has investors with large shareholdings, short investment horizons, or unpredictable cash flow needs. In addition, redemption risk is heightened during periods of overall market turmoil. The redemption by one or more large shareholders of their holdings in the Fund could adversely affect the Fund's performance. If the Fund is forced to liquidate its assets under unfavorable conditions or at inopportune times, the value of the Fund's shares may decline. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments result in gains, and may also increase transaction costs.

Management Risk. The investment techniques and analysis used by the Fund's portfolio managers may not produce the desired results.

Cybersecurity Risk. Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain access to Fund assets, Fund or customer data, including private shareholder information, or proprietary information, cause the Fund, the Fund's portfolio