iShares U.S. Trust - iShares Inflation Hedged High Yield Bond 

The underlying index is designed to minimize the inflation risk of a portfolio composed of U.S. dollar-denominated, high yield corporate bonds. The fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in component securities and instruments in the fund’s underlying index. It is non-diversified.