The fund normally invests at least 80 percent of its net assets, plus the amount of any borrowings for investment purposes, in corporate debt securities issued by companies that demonstrate attractive investment attributes and attractive business practices based on an environmental, social and governance (ESG) evaluation methodology. The fund's investment in corporate debt securities principally includes corporate bonds, notes and debentures of U.S. and non-U.S. issuers, including the securities of issuers in emerging market countries.