The investment seeks to track the investment results of the ICE 0-3 Month US Treasury Securities Index. The fund generally will invest at least 90% of its assets in the component securities of the underlying index and may invest up to 10% of its assets in certain futures, options and swap contracts, cash and cash equivalents. The index is measures the performance of public obligations of the U.S. Treasury that have a remaining maturity of less than or equal to three months.