PST ProShares UltraShort Lehman 7 10 Year Treasury

NEW YORK, May 1 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) today announced that it has launched trading in two new exchange traded funds: UltraShort Lehman 7-10 Year Treasury ProShares (AMEX:PST) and UltraShort Lehman 20+ Year Treasury ProShares (AMEX:TBT) by ProShare Advisors LLC (ProShares). ProShares now offers investors a choice of 62 ETFs, all of which are listed on the Amex. "We are happy to continue to support ProShares as they expand their innovative family of ETFs," said Scott Ebner, Senior Vice President of the Amex ETF Marketplace. "PST and TBT are the first ETFs to provide investors with exposure to the inverse performance of fixed income indexes." PST seeks daily investment results, before fees, expenses and interest earned on cash and financial instruments, that correspond to twice the inverse of the daily performance of the Lehman Brothers 7-10 Year U.S. Treasury Index. The Index includes all publicly issued, U.S. Treasury securities that have a remaining maturity of between 7 and 10 years and are non-convertible, denominated in U.S. dollars, rated investment grade (at least Baa3 by Moody's Investors Service or BBB- by S&P), fixed rate, and have more than $250 million par outstanding. TBT seeks daily investment results, before fees, expenses and interest earned on cash and financial instruments, that correspond to twice the inverse of the daily performance of the Lehman Brothers 20+ Year U.S. Treasury Index. The Index includes all publicly issued, U.S. Treasury securities that have greater than 20 years and are non-convertible, denominated in U.S. dollars, rated investment grade(at least Baa3 by Moody's Investors Service or BBB- by S&P), fixed rate, and have more than $250 million par outstanding. Goldman Sachs Execution and Clearing, LP is the specialist for PST and TBT. About the American Stock Exchange The American Stock Exchange(R) (Amex(R)) offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 391 ETFs to date. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks. For more information, please visit http://www.amex.com/. DATASOURCE: American Stock Exchange CONTACT: Bari Trontz, American Stock Exchange, +1-212-306-8964, Web site: http://www.amex.com/

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