HRS Harris Corp.

Pacific Exchange to Trade Twenty-Five New Options SAN FRANCISCO, Aug. 3 /PRNewswire/ -- The Pacific Exchange (PCX) announced that on Wednesday, August 4, 2004, it will begin trading options on Apria Healthcare Group, Inc. (NYSE:AHG)(PCX:AHG); ARAMARK Corp. (NYSE:RMK)(PCX:RMK); Chicago Mercantile Exchange Holdings, Inc. (NYSE:CME)(PCX:CME); Constellation Brands, Inc. (NYSE:STZ)(PCX:STZ); Curative Health Services, Inc. (NASDAQ:CURE)(PCX:CURE); Dot Hill Systems Corp. (NASDAQ:HILL)(PCX:HILL); ESS Technology, Inc. (NASDAQ:ESST)(PCX:ESST); Expeditors International of Washington, Inc. (NASDAQ:EXPD)(PCX:EXPD); First Health Group Corp. (NASDAQ:FHCC)(PCX:FHCC); FTI Consulting, Inc. (NYSE:FCN)(PCX:FCN); Harris Corp. (NYSE:HRS)(PCX:HRS); Joy Global, Inc. (NASDAQ:JOYG)(PCX:JOYG); Kyphon, Inc. (NASDAQ:KYPH)(PCX:KYPH); Laboratory Corporation of America Holdings (NYSE:LH)(PCX:LH); Lawson Software, Inc. (NASDAQ:LWSN)(PCX:LWSN); Meridian Gold, Inc. (NYSE:MDG)(PCX:MDG); National Instruments Corp. (NASDAQ:NATI)(PCX:NATI); O2Micro International Ltd. (NASDAQ:OIIM)(PCX:OIIM); Presstek, Inc. (NASDAQ:PRST)(PCX:PRST); Robert Half International, Inc. (NYSE:RHI)(PCX:RHI); SpectraLink Corp. (NASDAQ:SLNK)(PCX:SLNK); Techne Corp. (NASDAQ:TECH)(PCX:TECH); Tesoro Petroleum Corp. (NYSE:TSO)(PCX:TSO); TLC Vision Corp. (NASDAQ:TLCV)(PCX:TLCV); and United Therapeutics Corp. (NASDAQ:UTHR)(PCX:UTHR). Apria Healthcare Group options will trade on the March expiration cycle with exercise limits set at 3,150,000 shares. ARAMARK options will trade on the February expiration cycle with exercise limits set at 3,150,000 shares. Chicago Mercantile Exchange Holdings options will trade on the March expiration cycle with exercise limits set at 2,250,000 shares. Constellation Brands options will trade on the January expiration cycle with exercise limits set at 6,000,000 shares. Curative Health Services options will trade on the March expiration cycle with exercise limits set at 2,250,000 shares. Dot Hill Systems options will trade on the March expiration cycle with exercise limits set at 7,500,000 shares. ESS Technology options will trade on the January expiration cycle with exercise limits set at 7,500,000 shares. Expeditors International of Washington options will trade on the February expiration cycle with exercise limits set at 7,500,000 shares. First Health Group options will trade on the January expiration cycle with exercise limits set at 7,500,000 shares. FTI Consulting options will trade on the March expiration cycle with exercise limits set at 7,500,000 shares. Harris options will trade on the February expiration cycle with exercise limits set at 3,150,000 shares. Joy Global options will trade on the January expiration cycle with exercise limits set at 3,150,000 shares. Kyphon options will trade on the March expiration cycle with exercise limits set at 3,150,000 shares. Laboratory Corporation of America Holdings options will trade on the February expiration cycle with exercise limits set at 7,500,000 shares. Lawson Software options will trade on the February expiration cycle with exercise limits set at 3,150,000 shares. Meridian Gold options will trade on the January expiration cycle with exercise limits set at 6,000,000 shares. National Instruments options will trade on the March expiration cycle with exercise limits set at 3,375,000 shares until September 2004 expiration and 2,250,000 shares after the September 2004 expiration. O2Micro International options will trade on the January expiration cycle with exercise limits set at 3,150,000 shares. Presstek options will trade on the January expiration cycle with exercise limits set at 2,250,000 shares. Robert Half International options will trade on the March expiration cycle with exercise limits set at 7,500,000 shares. SpectraLink options will trade on the March expiration cycle with exercise limits set at 3,150,000 shares. Techne options will trade on the January expiration cycle with exercise limits set at 2,250,000 shares. Tesoro Petroleum options will trade on the February expiration cycle with exercise limits set at 7,500,000 shares. TLC Vision options will trade on the January expiration cycle with exercise limits set at 6,000,000 shares. United Therapeutics options will trade on the February expiration cycle with exercise limits set at 3,150,000 shares. All twenty-five issues will be traded by lead market maker Rob Kovell of PEAK6 Capital Management, Inc. DATASOURCE: Pacific Exchange CONTACT: Abby Balat of the Pacific Exchange, +1-415-393-7969, or Web site: http://www.pacificex.com/

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