The investment seeks to provide investment results that closely correspond, before expenses, to the performance of the Nasdaq U.S. Sustainable Momentum Index (the "index"). The fund normally invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities that compose the index at the time of purchase. The index uses a quantitative model designed to identify equity securities, including growth and value stocks, within the Nasdaq US Large Mid Cap Index that exhibit sustainable price momentum, based on historical stock prices over multiple periods and taking multiple market environments into consideration.