Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include corporate bonds, debentures and notes, convertible securities, hybrid securities, mortgage-backed and asset-backed securities, To-be-announced mortgage contracts, U.S. dollar denominated securities of foreign governments and corporations, U.S. government and agency securities, and variable and floating rate securities.