American stock exchange to Trade Options on Six Securities NEW YORK, Oct. 29 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) will launch trading in options on Monday, November 1, 2004 on the following Nasdaq Stock Market and New York Stock Exchange listed stocks: * August Technology Corporation (Option Symbol: QGV/Stock Symbol: AUGT) * Mannatech, Incorporated (Option Symbol: RYQ/Stock Symbol: MTEX) * NOVA Chemicals Corporation (Symbol: NCX) * OGE Energy Corp. (Symbol: OGE) * Valassis Communications, Inc. (Symbol: VCI) * Werner Enterprises, Inc. (Option Symbol: RVQ/Stock Symbol: WERN) August Technology Corporation options will open with strike prices of 5 - 7-1/2 - 10 and position limits of 2,250,000 shares. The options will trade on the March expiration cycle with initial expirations in November, December March and June. The specialist will be Bowery Specialist Group, LLC. August Technology Corporation provides automated visual inspection solutions for the semiconductor industry. Mannatech, Incorporated options will open with strike prices of 15 - 17-1/2 - 20 and position limits of 1,350,000 shares. The options will trade on the March expiration cycle with initial expirations in November, December March and June. The specialist will be TANSTAAFL Research & Trading, LLC. Mannatech, Incorporated develops and sells proprietary nutritional supplements and topical products through a network marketing system of independent distributors. NOVA Chemicals Corporation options will open with strike prices of 35-40-45 and position limits of 1,350,000 shares. The options will trade on the March expiration cycle with initial expirations in November, December March and June. The specialist will be TD Options, LLC. NOVA Chemicals Corporation manufactures commodity chemicals. The Company produces ethylene/polyethylene and styrenics at facilities in Canada, the United States, France and the United Kingdom. OGE Energy Corp. options will open with strike prices of 22-1/2 - 25 - 30 and position limits of 2,250,000 shares. The options will trade on the March expiration cycle with initial expirations in November, December March and June. The specialist will be Stuyvesant Trading Group. OGE Energy Corp., through its principal subsidiary Oklahoma Gas and Electric Company, generates, transmits and distributes electricity to wholesale and retail customers in communities in Oklahoma and western Arkansas. Valassis Communications, Inc. options will open with strike prices of 30 - 35 - 40 and position limits of 3,150,000 shares. The options will trade on the March expiration cycle with initial expirations in November, December, March and June. The specialist will be LaBranche Structured Products, LLC. Valassis Communications, Inc. prints and publishes cents-off coupons and other consumer purchase incentives primarily for package goods manufactures. Werner Enterprises, Inc. options will open with strike prices of 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 November, December, March and June. The specialist will be Kellogg Capital Group, LLC. Werner Enterprises, Inc. is a transportation company that primarily hauls truckload shipments of general commodities in both interstate and intrastate commerce. 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 143 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: The American Stock Exchange CONTACT: Dan Charnas, American Stock Exchange, +1-212-306-1654, or Web site: http://www.amex.com/

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