The investment seeks to provide total return that closely corresponds, before fees and expenses, to the total return of The BofA Merrill Lynch 0-5 Year US High Yield Constrained IndexSM. The fund invests at least 80% of its total assets (exclusive of collateral held from securities lending) in the component securities ("Component Securities") of the index. The underlying index is an unmanaged index comprised of U.S. dollar denominated below investment grade corporate debt securities publicly issued in the U.S. domestic market with remaining maturities of less than 5 years. It is non-diversified.