This exchange-traded fund, issued by Invesco, aims to track the performance of the S&P 500 Momentum Index. The index primarily selects constituents from the S&P 500 Index that possess the highest "momentum scores," meaning those with the highest price appreciation and the strongest upward trends over the past year. Through a quantitative strategy, the fund periodically adjusts its weights to help investors focus on market-leading companies during bull markets or strong trend environments, serving as a typical tool for style rotation and Smart Beta investing.