XSHU seeks to provide income by replicating, to the extent possible, the performance of an index composed of U.S. dollar-denominated, investment grade corporate bonds with remaining maturities between one and five years (as determined by the Index Provider), net of expenses. XSHU currently seeks to replicate the performance of the ICE BofA 1-5 Year US Corporate Index. Under normal market conditions, XSHU will primarily invest in securities of one or more iShares ETFs and/or U.S. fixed income securities.