The investment seeks to track the investment results of the Markit iBoxx® USD Liquid Investment Grade 0-5 Index composed of U.S. dollar-denominated, investment-grade corporate bonds with remaining maturities of less than five years. 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 designed to reflect the performance of U.S. dollar-denominated investment-grade corporate debt.