XSTP seeks to provide income by replicating, to the extent possible, the performance of an index composed of inflation-indexed U.S. Treasury bonds with remaining maturities of less than five years, net of expenses. XSTP currently seeks to replicate the performance of the Bloomberg Barclays U.S. Treasury Inflation-Protected Securities (TIPS) 0-5 Years Index (Series-L). Under normal market conditions, XSTP will primarily invest in securities of one or more iShares ETFs and/or U.S. fixed income securities.