THE PHILADELPHIA STOCK EXCHANGE TO BEGIN TRADING THREE NEW OPTIONS ON MONDAY, DECEMBER 6

For more information, contact Barbara Sorid at 215-496-5200 or by e-mail

PHILADELPHIA – Dec. 3, 2004 - The Philadelphia Stock Exchange (PHLX) announced today that it will begin three new options on Monday, December 6.

ESCO Technologies, Inc, (NYSE symbol: ESE) has been allocated to LaBranche Structured Products, LLC. It will trade on the March expiration cycle. Position and Exercise limits have been set at 1,350,000 shares.

Genitope Corp. (Nasdaq symbol: GWY/GTOP) has been allocated to LaBranche Structured Products, LLC. It will trade on the March expiration cycle. Position and Exercise limits have been set at 1,350,000 shares.

AaiPharma, Inc. Corp. (Nasdaq symbol: IUQ/AAII) has been allocated to First Derivative traders, L.P. It will trade on the March expiration cycle. Position and Exercise limits have been set at 7,500,000 shares.


The Philadelphia Stock Exchange was founded in 1790. The PHLX trades 2,000 stocks, 1,500 equity options, 18 sectors index options, and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com.

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