The investment objective of the Portfolio is to achieve a high risk-adjusted total return. The Portfolio seeks to achieve its objective by investing in mortgage-related securities and other asset-backed securities. The Portfolio may invest in securities of both Investment Grade and non-Investment Grade quality originated by a wide array of originators and sponsors. The Portfolio's investments may include fixed and floating rate securities, including agency mortgage-backed securities and non-agency mortgage-backed securities as well as other asset-backed securities, commercial mortgage-backed securities, and collateralized debt obligations and related financial derivative instruments and currencies. The Portfolio will have at least two-thirds of its total assets invested in mortgage-related securities.