Strategy. Normally, the fund invests at least 80% of its net assets (plus the amount of borrowings, if any, for investment purposes) in floating rate instruments of U.S. and non-U.S. issuers, including: mortgage-backed and asset-backed securities; senior secured loans (senior loans) and second lien or other subordinated or unsecured loans; debt issued by banks and other corporate, governmental and non-governmental entities; corporate bonds; insurance-linked securities; and preferred stock. The fund may invest in floating rate instruments of issuers in any industry or market sector. The fund also considers as floating rate instruments, and the fund may invest without limit in, adjustable rate securities, fixed rate securities with durations of less than or equal to one year, securities of other investment companies … Show more… Normally, the fund invests at least 80% of its net assets (plus the amount of borrowings, if any, for investment purposes) in floating rate instruments of U.S. and non-U.S. issuers, including: mortgage-backed and asset-backed securities; senior secured loans (senior loans) and second lien or other subordinated or unsecured loans; debt issued by banks and other corporate, governmental and non-governmental entities; corporate bonds; insurance-linked securities; and preferred stock. The fund may invest in floating rate instruments of issuers in any industry or market sector. The fund also considers as floating rate instruments, and the fund may invest without limit in, adjustable rate securities, fixed rate securities with durations of less than or equal to one year, securities of other investment companies (including mutual funds, exchange-traded funds and closed-end funds) that invest primarily in floating rate instruments, and fixed rate securities with respect to which the fund has entered into derivative instruments to effectively convert the fixed rate interest payments into floating rate interest payments. The fund considers these investments as economic equivalents of floating rate instruments. The fund also may invest in other derivative instruments that provide exposure to floating rate instruments or have similar economic characteristics for purposes of satisfying the 80% requirement. The fund does not have a targeted maturity range for its portfolio. The fund may invest in securities of any maturity. The maturity of a fixed income security is a measure of the time remaining until final payment on the security is due. Under normal circumstances, the funds average portfolio duration will be less than two years. Duration seeks to measure the price sensitivity of a fixed income security to changes in interest rates. If the funds average portfolio duration exceeds two years, the fund will take action to bring it within its expected range within a reasonable period of time. Unlike maturity, duration takes into account interest payments that occur throughout the course of holding the bond. The longer a portfolios duration, the more sensitive it will be to changes in interest rates. For example, if the fund has a two year duration, then all other things being equal, the fund will decrease in value by two percent if interest rates rise one percent. The assumptions that are made about a securitys features and options when calculating duration may prove to be incorrect. Duration is calculated by the adviser, is not an exact measurement and may not reliably predict the funds or a particular securitys price sensitivity to changes in yield or interest rates. The fund may invest up to 20% of its net assets in debt securities that are rated below investment grade (debt securities rated below investment grade are commonly referred to as junk bonds) or are unrated but determined by the funds investment adviser to be of equivalent credit quality, and those that are in default or in bankruptcy. The fund does not have a policy of maintaining a specific average credit quality of its portfolio. The fund may invest up to 35% of its total assets in debt securities of non-U.S. issuers, including emerging market issuers. The fund does not currently intend to invest more than 25% of its total assets in any one non-U.S. country. The fund may invest a substantial portion of its assets in asset-backed securities and mortgage-related securities, including credit risk transfer securities, and commercial mortgage-backed securities, collateralized mortgage obligations (CMOs) and other mortgage-related securities issued by private issuers. The fund's investments in mortgage-related securities may include instruments, the underlying assets of which allow for balloon payments (where a substantial portion of a mortgage loan balance is paid at maturity, which can shorten the average life of the mortgage-backed instrument) or negative amortization payments (where as a result of a payment cap, payments on a mortgage loan are less than the amount of principal and interest owed, with excess amounts added to the outstanding principal balance, which can extend the average life of the mortgage-backed instrument). In addition to its investments in floating rate instruments, the fund also may invest in other securities, including debt of U.S. and non-U.S. governmental, corporate and other non-governmental issuers; insurance-linked securities that may include collateralized reinsurance, industry loss warranties and quota shares; convertible securities; municipal bonds; bonds not paying current income; bonds that do not make regular interest payments; zero coupon securities; securities of other investment companies (including mutual funds, exchange traded funds and closed-end funds); money market instruments; and other short-term investments, including cash and cash equivalents, certificates of deposit, repurchase agreements maturing in one week or less and bankers acceptances. The fund may receive debt securities or equity securities as a result of the general restructuring of the debt of an issuer, the restructuring of a floating rate loan, or as part of a package of securities acquired with a loan. The fund may, but is not required to, use derivatives, such as credit default swaps. The fund may use derivatives for a variety of purposes, including: in an attempt to hedge against adverse changes in the market price of securities, interest rates or currency exchange rates; as a substitute for purchasing or selling securities; to attempt to increase the funds return as a non-hedging strategy that may be considered speculative; to manage portfolio characteristics; and as a cash flow management technique. The fund may invest without limit in derivative instruments. However, the fund may choose not to make use of derivatives for a variety of reasons, and any use may be limited by applicable law and regulations. The fund may hold cash or other short-term investments. The fund's investments may have fixed or variable principal payments and all types of interest rate and dividend payment and reset terms, including fixed rate, adjustable rate, floating rate, contingent, deferred, payment in kind and auction rate features. The fund may invest in equity securities as a consequence of holding debt of the same issuer, when the adviser believes they offer the potential for capital gains or for other portfolio management purposes, although equity securities may not pay dividends or contribute to achieving the funds investment objective of a high level of current income. The adviser considers both broad economic and issuer specific factors in selecting a portfolio designed to achieve the fund's investment objective. In assessing the appropriate duration, rating, sector and country weightings of the funds portfolio, the adviser considers a variety of factors that are expected to influence economic activity and interest rates. These factors include fundamental economic indicators, such as the rates of economic growth and inflation, Federal Reserve monetary policy, and the relative value of the U.S. dollar compared to other currencies. Once the adviser determines the preferable portfolio characteristics, the adviser selects individual securities based upon the terms of the securities (such as yields compared to U.S. Treasuries or comparable issues), liquidity, credit quality, and sector and issuer diversification. The adviser also employs fundamental quantitative and qualitative research to assess an issuer's credit quality, taking into account financial condition and profitability, future capital needs, potential for change in rating, industry outlook, the competitive environment and management capabilities. The adviser may sell a portfolio security when it believes the security no longer will contribute to meeting the funds investment objective. The adviser makes that determination based on the same criteria it uses to select portfolio securities. The adviser integrates environmental, social and corporate governance (ESG) considerations into its investment research process by evaluating the business models and practices of issuers and their ESG-related risks. The adviser believes ESG analysis is a meaningful facet of fundamental research, the process of evaluating an issuer based on its financial position, business operations, competitive standing and management. This process considers ESG information, where available, in assessing an investments performance potential. The adviser generally considers ESG information in the context of an issuers respective sector or industry. The adviser may consider ESG ratings provided by third parties or internal sources, as well as issuer disclosures and public information, in evaluating issuers. ESG considerations are not a primary focus of the fund, and the weight given by the adviser to ESG considerations in making investment decisions will vary and, for any specific decision, they may be given little or no weight. Notwithstanding the foregoing, the adviser generally will not invest fund assets in companies engaged in the production, sale, storage of, or providing services for, certain controversial weapons, including chemical, biological and depleted uranium weapons and certain antipersonnel mines and cluster bombs. Show less