The fund normally invests at least 80% of its net assets, plus any borrowings for investment purposes, in fixed income securities of U.S. and foreign corporate issuers, which will include corporate bonds, collateralized loan obligations and mortgage-backed and other asset-backed securities, and structured notes with economic characteristics similar to fixed income securities. It will invest in callable bonds, as well as fixed income securities that pay a fixed or floating interest rate or interest that is payable in-kind or payable at maturity.