The Invesco DWA Tactical Sector Rotation ETF (DWTR) endeavors to replicate the investment performance, prior to the deduction of fees and expenses, of the Dorsey Wright® Sector 4 Index. Typically, at least 90% of the fund's total assets are committed to the securities comprising this benchmark. Operating as a "fund of funds," DWTR achieves its objective by investing in shares of other exchange-traded funds (ETFs) that qualify for inclusion in its underlying index.