CHICAGO, IL--(Marketwire - Apr 15, 2011) - Invesco PowerShares Capital Management LLC, a leading global provider of exchange-traded funds (ETFs), provides additional information on the PowerShares QQQ (NASDAQ: QQQ) and the previously announced special rebalance of the NASDAQ-100 Index® that will go into effect prior to market open on May 2, 2011.

On April 5, 2011, NASDAQ OMX announced a special rebalance to bring the index securities' weights closer in line with their actual market capitalizations. The underlying characteristics and relative sector weights of the NASDAQ-100 Index® will remain unchanged. For more information about the special rebalance, visit