Summary Prospectus by Investment Company - Form 497K

PAYDEN GLOBAL LOW DURATION FUND

Summary Prospectus

February 28, 2024

as supplemented on August 12, 2024

The Fund invests in a wide variety of debt instruments and income-producing securities. These include (1) debt securities 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, and U.S. and foreign asset-backed debt securities, including collateralized debt obligations and collateralized loan obligations; (4) 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; and (5) convertible bonds and preferred stock.

The Fund invests at least 65% of its total assets in investment grade debt securities. However, the Fund may invest up to 35% of its total assets in debt securities rated below investment grade. The overall average credit quality of the Fund will remain 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 that the Fund's adviser, Payden & Rygel ("Payden"), determines to be of comparable quality.

Under normal market conditions, the Fund invests at least 65% of its total assets in debt securities of issuers organized or headquartered in at least three countries, one of which may be the United States. The Fund may invest in debt securities of issuers organized or headquartered in emerging market countries.

The Fund invests in debt securities payable in U.S. dollars and in foreign currencies, and the Fund generally hedges most of its foreign currency exposure to the U.S. dollar.

The Fund invests in debt securities of any maturity. Maturity is the date when each bond or other debt security pays back its principal. Under normal market conditions, the Fund's maximum average portfolio maturity (on a dollar-weighted basis) is four years. In calculating the Fund's average portfolio maturity, the Fund uses a security's stated maturity, or if applicable, an earlier date based on the Adviser's belief that the security may be subject, for example, to a call, a put, a refunding, a prepayment, a redemption provision, an adjustable coupon rate, or the like, that will cause the security to be repaid earlier.

The Fund may invest up to 20% of its total assets in equity securities of U.S. or foreign issuers.

The Fund may invest in many different types of derivatives, such as futures, forwards, swaps and options. These positions may be used for the purposes of either hedging currency exposure in the portfolio or to obtain exposure to various market sectors. Currency positions may be employed for the purposes of hedging non-dollar denominated bonds or to take an active position in a currency, both long or short.

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).

Interest Rates. Because the Fund invests principally 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. 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.

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

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, and fluctuations in foreign currency exchange rates may also adversely affect the value of foreign securities. The value of the Fund's investments may decline because of factors affecting the particular issuer as well as foreign markets and issuers generally, such as unfavorable or unsuccessful government actions, reduction of government or central bank support and political or financial instability. Lack of information may also affect the value, volatility and liquidity of these 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, 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 or other factors, political developments, armed conflict, investor sentiment and the global and domestic effects of a pandemic.

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 recently have been less willing to make markets for fixed income securities. Recent federal banking regulations may also cause certain dealers to reduce their inventories of certain securities, 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.

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.

Below Investment Grade Credit. Below investment grade 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 more significantly in periods of general economic difficulty.

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

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 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. The use of derivatives can lead to losses due to: (1) adverse movements in the price or value of the asset, index, rate or instrument underlying a derivative; (2) failure of a counterparty; or (3) tax or regulatory constraints. Derivatives may create economic leverage in the Fund, which magnifies the Fund's sensitivity to market events and to the underlying instrument. Derivatives risk may be more significant when derivatives are used to enhance return or as a substitute for a cash investment position, rather than solely to hedge the risk of a position held by the Fund. When derivatives are used to gain or limit exposure to a particular market or market segment, their performance may not correlate as expected to the performance of such market thereby causing the Fund to fail to achieve its original purpose for using such derivatives. A decision as to whether, when and how to use derivatives involves the exercise of specialized skill and judgment, and a transaction may be unsuccessful in whole or in part because of market behavior or unexpected events. Derivative instruments may be difficult to value, may be illiquid, and may be subject to wide swings in valuation caused by changes in the value of the underlying instrument. If a derivative's counterparty is unable to honor its commitments, the value of Fund shares may decline and the Fund could experience delays in the return of collateral or other assets held by the counterparty. The loss on derivative transactions may substantially exceed the initial investment.

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.

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 managers and/or their service providers, including, but not limited to, Fund accountants, custodians, transfer agents and financial intermediaries, to suffer data breaches, data corruption or loss of operational functionality or prevent fund investors from purchasing, redeeming or exchanging shares or receiving distributions. The Fund and the Fund's portfolio managers have limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers. Cybersecurity incidents may result in financial losses to the Fund and its shareholders, and substantial costs may be incurred in order to prevent any future cybersecurity incidents.

Regular

Tax-Sheltered

Electronic Investment

Set schedule

No set schedule

Automatic Exchange