American Stock Exchange Lists Stock Market Upturn Notes Based on the S&P 500 Index NEW YORK, Sept. 1 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) today began trading Citigroup Global Markets Holdings Inc., Stock Market Upturn Notes based upon the S&P 500 Index. The 3.4 million units were listed under the ticker symbol SPU and will mature on February 28, 2006. At maturity, holders will receive a cash amount based on the performance of the S&P 500 Index. The notes are issued by Citigroup Global Markets. The Amex specialist unit is AGS/STR/OTA. If you would like to receive a copy of the prospectus for SPU, please contact the Capital Markets Group at the American Stock Exchange at 212-306-1659. The American Stock Exchange(R) (Amex(R)) is the only primary exchange that 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 138 ETFs. 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: Mary Chung of American Stock Exchange, +1-212-306-1641, Web site: http://www.amex.com/

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