The fund invests primarily in investment grade quality debt obligations from a diverse group of U.S. and non-U.S. issuers. Under normal market conditions, the fund will invest at least 80% of its net assets, plus any borrowings for investment purposes, in fixed income securities. Fixed income securities in which the fund may invest as part of its principal strategy are corporate bonds and notes issued by U.S. and foreign corporations, securities issued by governments and their agencies, instrumentalities, or sponsored corporations—including supranational organizations.