PowerShares Capital Management LLC is passionate about our goal of delivering the highest quality investment management available through one of the more benefit-rich investment vehicles ever created, the exchange-traded fund. PowerShares QQQ, formerly known as "QQQ" or the "NASDAQ-100 Index Tracking Stock", is an exchange-traded fund based on the Nasdaq-100 Index. The Fund will, under most circumstances, consists of all of stocks in the Index. The Index includes 100 of the largest domestic and international non-financial companies listed on the Nasdaq Stock Market based on market capitalization. The Fund and the Index are rebalanced quarterly and reconstituted annually.