The investment seeks to provide current income consistent with preservation of capital. The fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets in a portfolio of U.S. dollar-denominated investment-grade fixed- and floating-rate debt securities that are rated BBB- or higher by S&P Global Ratings and/or Fitch Ratings, Inc. (Fitch), or Baa3 or higher by Moody's Investors Service, Inc. (Moody's), or, if unrated, determined by BFA to be of equivalent quality.