| The Fund seeks to achieve its investment objective by investing primarily in domestic and foreign debt securities that the sub-adviser, Wellington Management Company LLP ( Wellington Management ), considers to be attractive from a yield perspective while considering total return and also incorporating a sustainability framework (described below). The Fund normally invests in non-investment grade debt securities (also known as junk bonds ) and highly rated securities. The foreign debt securities in which the Fund invests include securities of emerging market issuers. The Fund may invest in various types of debt securities, including, but not limited to, corporate bonds; debt securities issued by foreign governments; U.S. government and agency securities; bank loans or loan participation interests in secured, second lien or unsecured variable, fixed or floating rate loans; and securitized debt (such as mortgage-related and asset-backed securities). The Fund may use derivatives including futures contracts, swaps, options and forward foreign currency contracts, to manage portfolio risk, for efficient replication of securities the Fund could buy or for other investment purposes. The Fund will normally invest at least 80% of its assets in securities of issuers that Wellington Management determines meet its sustainable investing criteria. For purposes of determining which issuers meet its sustainable investing criteria, Wellington Management will use its internally developed sustainability framework to identify issuers it believes have demonstrated a commitment to sustainable practices. These issuers include: (1) issuers that Wellington Management believes can have a positive social and/or environmental impact; (2) issuers that are leaders or demonstrating improvement in environmental, social and/or governance ( ESG ) characteristics, based on Wellington Management s proprietary insights; and/or (3) issuers that Wellington Management engages with on ESG characteristics in order to improve ESG disclosure and best practices. |