CHICAGO, IL--(Marketwire - May 5, 2011) - Invesco PowerShares Capital Management LLC, a leading global provider of exchange-traded funds (ETFs), announced that the PowerShares S&P 500® Low Volatility Portfolio (NYSE Arca: SPLV) and PowerShares S&P 500® High Beta Portfolio (NYSE Arca: SPHB) began trading today on the NYSE Arca. The portfolios are the first ETFs to provide investors access to low volatility and high beta versions of the widely followed S&P 500® Index.

"We believe the PowerShares S&P 500 Low Volatility Portfolio is an attractive tool for advisors seeking lower volatility for the portfolio core, and may offer a measure of protection in down cycles while still potentially participating in upward trending cycles," said Ben Fulton, Invesco PowerShares managing director of global ETFs.

"For advisors and investors seeking cost-effective ways to add a bullish tactical portfolio tilt, we believe the PowerShares S&P 500 High Beta Portfolio allows investors to increase their exposure to the equity market without using leverage," added Ben Fulton.

The PowerShares S&P 500®Low Volatility Portfolio (SPLV) is the first volatility-weighted ETF and seeks investment results that correspond (before fees and expenses) generally to the price and yield of the S&P 500® Low Volatility Index (the Underlying Index). The Fund will invest at least 90% of its total assets in common stocks that comprise the Underlying Index, which consists of the 100 stocks from the S&P 500® Index, with the lowest realized volatility over the past 12 months as determined by Standard & Poor's. Index constituents are rebalanced quarterly.

The PowerShares S&P 500®High Beta Portfolio (SPHB) is the first beta-weighted ETF and seeks investment results that correspond (before fees and expenses) generally to the price and yield of the S&P 500® High Beta Index (the Underlying Index). The Fund will invest at least 90% of its assets in common stocks that comprise the Underlying Index, which consists of the 100 stocks from the S&P 500 Index with the highest sensitivity to market movements, or beta, over the past 12 months as determined by Standard & Poor's. Index constituents are rebalanced quarterly.

Invesco PowerShares Capital Management LLC is leading the Intelligent ETF Revolution® through its family of more than 140 domestic and international exchange-traded funds, which seek to outperform traditional benchmark indexes while providing advisors and investors access to an innovative array of focused investment opportunities. With franchise assets over $60 billion as of March 31, 2011, PowerShares ETFs trade on both U.S. stock exchanges. For more information, please visit us at