The Invesco BuyBack Achievers™ ETF (Fund) is based on the NASDAQ US BuyBack Achievers™ Index (Index). The Fund will normally invest at least 90% of its total assets in common stocks that comprise the Index. The Index is designed to track the performance of companies that meet the requirements to be classified as BuyBack Achievers™. The NASDAQ US BuyBack Achievers Index is comprised of US securities issued by corporations that have effected a net reduction in shares outstanding of 5% or more in the trailing 12 months. The Fund and the Index are reconstituted annually in January and rebalanced quarterly in January, April, July and October.