The investment seeks investment results that correspond generally to the performance, before fees and expenses, of the DBIQ Municipal Infrastructure Revenue Bond Index (the "underlying index"). The underlying index is designed to track the returns of the segment of the U.S. long term tax-exempt bond market, consisting of infrastructure revenue bonds. The fund normally invests at least 80% of net assets, plus the amount of any borrowings for investment purposes, in securities issued by municipalities across the United States, as well as in other securities. It is non-diversified.