American Stock Exchange to Trade Options on Seven Securities NEW YORK, May 5 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) will launch trading in options on Thursday, May 6, 2004 on the following American Stock Exchange, Nasdaq Stock Market and New York Stock Exchange listed stocks of: * aQuantive, Inc. (Option Symbol: QBT/Stock Symbol: AQNT) * Headwaters Incorporated (Option Symbol: HQK/Stock Symbol: HDWR) * Identix Incorporated (Option Symbol: IDX/Stock Symbol: IDNX) * KFx Inc. (Symbol: KFX) * Laserscope (Option Symbol: LXQ/Stock Symbol: LSCP) * Louisiana-Pacific Corporation (Symbol: LPX) * RAE Systems Inc. (Symbol: RAE) aQuantive, Inc options will open with position limits of 6,000, 000 shares. The options will trade on the March expiration cycle. The specialist will be Charlton Specialist Partners, LLC. aQuantive, Inc. is a digital marketing services and technology company that helps marketers acquire, retain and grow customers across all digital media Headwaters Incorporated options will open with position limits of 3,150, 000 shares. The options will trade on the February expiration cycle. The specialist will be AGS Specialists, LLC. Headwaters Incorporated develops and deploys alternative fuel and related technologies. Identix Incorporated options will open with position limits of 7,500, 000 shares. The options will trade on the March expiration cycle. The specialist will be Tanstaafl Research & Trading, LLC. Identix Incorporated designs, develops, manufactures and markets fingerprint identification and imaging platforms and solutions for security, fraud prevention, law enforcement and other applications. KFx Inc. options will open with position limits of 3,150, 000 shares. The options will trade on the March expiration cycle. The specialist will be Highland Securities Corp. Amex-listed KFx Inc. provides service solutions to the electric power generation industry that enhance the output of coal-fired boilers while simultaneously reducing the related environmental impacts. Laserscope options will open with position limits of 3,150, 000 shares. The options will trade on the March expiration cycle. The specialist will be TD Options, LLC. Laserscope designs, manufactures, sells and services a line of medical laser systems and related energy delivery devices for the office, outpatient surgical center and hospital markets. Louisiana-Pacific Corporation options will open with position limits of 7,500, 000 shares. The options will trade on the March expiration cycle. The specialist will be Susquehanna Investment Group. Louisiana-Pacific Corporation manufactures building materials and industrial wood products in the US, Canada and Ireland. RAE Systems Inc options will open with position limits of 3,150, 000 shares. The options will trade on the March expiration cycle. The specialist will be Group One Trading, L.P. Amex-listed RAE Systems Inc. manufactures single and multiple sensor atmospheric monitors, photo-ionization detectors, gas detection tubes and sampling pumps. 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: Media - Lynn Duffy of the American Stock Exchange, +1-212-306-1654, Web site: http://www.amex.com/

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