The investment seeks total return. The fund invests in zero-coupon U.S. Treasury securities and U.S. Treasury bills, notes, and bonds that will mature in 2020. These securities will return a dollar amount that approximates the return on a direct investment in zero-coupon securities for that year and is predictable at the time of investment. The fund intends to maintain the duration of its holdings so that it falls within the year 2020 and may take advantage of disparities in prices and yields. The fund will be liquidated at the end of 2020.