The investment seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the 1-3 month sector of the United States Treasury Bill market. The fund uses a passive management strategy designed to track the total return performance of the Barclays Capital 1-3 Month U.S. Treasury Bill index. The 1-3 Month U.S. Treasury Bill index measures the performance of public obligations of the U.S. Treasury that have a remaining maturity of greater than or equal to 1 month and less than 3 months. It is nondiversified.