The Invesco S&P MidCap Momentum ETF (Fund) is based on the S&P Midcap 400 Momentum Index (Index). The Fund will invest at least 90% of its total assets in the component securities that comprise the Index. The Index is composed of securities with 80 securities in the S&P Midcap 400 Index having the highest “momentum scores,” which are computed by measuring the upward price movements of each security as compared to other eligible stocks within the S&P Midcap 400 Index. The Fund and the Index are rebalanced and reconstituted semi-annually.