The investment seeks to mitigate the interest rate risk of a portfolio composed of U.S. dollar-denominated, high yield corporate bonds. The fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets in U.S. dollar-denominated high yield bonds, in one or more underlying funds that principally invest in high yield bonds and in U.S. Treasury securities. It may also invest in other interest rate futures contracts, including but not limited to, Eurodollar and Federal Funds futures.