The Invesco SP 500 Quality ETF is based on the SP 500 Quality Index.The Fund will normally invest at least 90% of its total assets in common stocks that comprise the Index. The Index tracks the performance of stocks in the SP 500 Index that have the highest quality score, which is calculated based on three fundamental measures, return on equity, accruals ratio and financial leverage ratio. The Fund and the Index are rebalanced and reconstituted semi-annually on the third Friday of June and December. Effective at the close of markets on Friday, March 18, 2016, the Funds? name, investment objective, principal investment strategy and underlying index have changed. Please see the Fund's prospectus for further information. Previously know as PowerShares Value Line Timeliness Select Portfolio.