American Stock Exchange to Trade Options on Four Securities NEW YORK, Aug. 5 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) will launch trading in options on Friday, August 6, 2004 on the following Nasdaq and New York Stock Exchange listed stocks of: * Denbury Resources, Inc. (Symbol: DNR) * NitroMed, Inc. (Option Symbol: QNR/Stock Symbol: NTMD) * Telewest Global, Inc. (Option Symbol: QTX/Stock Symbol: TLWT) * Webzen Inc. (Option Symbol: QZE/Stock Symbol: WZEN) Denbury Resources, Inc. options will open with strike prices of 17-1/2 - 20 - 22-1/2 - 25 and position limits of 3,150, 000 shares. The options will trade on the March expiration cycle with initial expirations in August, September, December and March. The Specialist will be Bowery Specialist Group, LLC. Denbury Resources Inc. acquires, develops, operates and explores oil and gas properties, primarily in the Gulf Coast region of the US. NitroMed, Inc. options will open with strike prices of 12-1/2 - 15 - 17-1/2 - 20 and position limits of 3,150, 000 shares. The options will trade on the March expiration cycle with initial expirations in August, September, December and March. The Specialist will be LaBranche Structured Products, LLC. NitroMed, Inc. is a pharmaceutical company that discovers, develops and seeks to commercialize proprietary pharmaceuticals based on the therapeutic benefits of the naturally-occurring molecule nitric oxide. Telewest Global, Inc. options will open with strike prices of 10 - 12-1/2 - 15 and position limits of 1,350, 000 shares. The options will trade on the March expiration cycle with initial expirations in August, September, December and March. The Specialist will be Group One Trading, L.P. Telewest Global, Inc. conducts operations in the United Kingdom (UK) broadband communications and media sector. The Company provides cable television, cable telephony and Internet access to residential customers, as well as voice, data and managed solutions services for businesses. Webzen Inc. options will open with strike prices of 2-1/2 - 5 - 7-1/2 and position limits of 2,250, 000 shares. The options will trade on the March expiration cycle with initial expirations in August, September, December and March. The Specialist will be Charlton Specialist Partners, LLC. Webzen Inc. develops and markets online game software and distributes it through Internet. 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 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. DATASOURCE: The American Stock Exchange CONTACT: Lynn Duffy of American Stock Exchange, +1-212-306-1654, or Web site: http://www.amex.com/

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