The investment seeks to achieve a total return before expenses that approximates the total return performance of the Bloomberg Barclays U.S. Intermediate Government/Credit Bond Index. The fund invests at least 80% of its net assets, plus borrowings for investment purposes, in securities that are included in the index, which covers the U.S. dollar denominated, investment grade, fixed-rate, taxable bond market, including U.S. Treasury and government-related, corporate, credit and agency fixed-rate debt securities. It also may invest up to 40% of the fund's assets in exchange-traded funds ("ETFs") that invest in securities included in the index.