The American Stock Exchange today announced that it has launched trading in three new exchange traded funds (ETFs) from PowerShares Capital Management LLC (PowerShares). The ETFs are based on equity indexes and are all sector portfolios.

"We are very excited to welcome PowerShares back to the Amex for three new ETF listings," said Cliff Weber, Senior Vice President of the Amex ETF Marketplace. "The Amex takes great pride in supporting PowerShares' 50 ETF listings on the Exchange as we continue to bring innovative products to the marketplace."

"We are very pleased to be working with the Amex to expand the PowerShares family of ETFs," said Bruce Bond, President of PowerShares. "Providing investors with direct, diversified and liquid access to the world of private equity is consistent with PowerShares' goals as an asset manager. The LSTPE Index is both unique and innovative, and it is a great fit for our growing portfolio of exchange-traded funds."

PowerShares Cleantech Portfolio (PZD)

PZD seeks investment results that correspond generally to the price and yield (before fees and expenses) of the Cleantech(TM) Index (CTIUS). CTIUS is an equally weighted index currently comprised of 75 publicly traded companies engaged in the production of any knowledge-based product or service that improves operation, performance, productivity or efficiency, while reducing costs, inputs, energy consumption, waste or pollution. Cleantech companies produce knowledge-based products or services in a variety of areas, including agriculture and nutrition, air quality, enabling technologies, environmental technologies, material and nano-technology, materials recovery and recycling, transportation and logistics, and water purification and management. Stocks will be selected by Cleantech Capital Indices LLC.

PowerShares Listed Private Equity Portfolio (PSP)

PSP seeks investment results that correspond generally to the price and yield (before fees and expenses) of the Red Rocks Listed Private Equity Index (LSTPE). LSTPE is comprised of stocks of securities and American depositary receipts of publicly listed private equity companies, including business development companies and other financial institutions or vehicles whose principal business is to invest in and lend capital to privately-held companies. Stocks in the LSTPE will be selected by Red Rocks Capital Partners LLC.

PowerShares WilderHill Progressive Energy Portfolio (PUW)

PUW seeks investment results that correspond generally to the price and yield (before fees and expenses) of the WilderHill Progressive Energy Index (WHPRO). WHPRO is a modified equal-weighted index composed of companies engaged in businesses which are believed to stand to benefit from a societal shift toward the transitional energy technologies significant in improving the use of fossil fuels and nuclear power. Companies in WHPRO will be selected by Progressive Energy Index, LLC.

Goldman Sachs Execution & Clearing, LP is the specialist for PSP. LaBranche Structured Products, LLC is the specialist for PZD and PUW.

Options will also be traded on the three ETFs. The specialist for PZD and PUW options is LaBranche Structured Products, LLC. The specialist for PSP options is Susquehanna Investment Group.