THE PHILADELPHIA STOCK EXCHANGE TO BEGIN TRADING FOUR NEW OPTIONS ON SEPTEMBER 2

PHILADELPHIA —September 1, 2005 The Philadelphia Stock Exchange (PHLX) announced today that it will begin trading four new options beginning September 2. The options were allocated to LaBranche Structured Products, LLC.

Excel Maritime Carriers Ltd. (option/stock symbol:EXM) will trade on the March expiration cycle with initial expiration months September, October, December, and March. Position and exercise limits have been set at 50,000 contracts.

Delphi Corp. (.option/stock symbol:DPH) will trade on the March expiration cycle with initial expiration months September, October, December, January, and March. Position and exercise limits have been set at 250,000 contracts.

Bioenvision, Inc. (BQN/BIVN)(option/stock symbol:BQN) will trade on the March expiration cycle with initial expiration months September, October, December, March. Position and exercise limits have been set at 75,000 contracts.

Celera Genomics Group (option/stock symbol:CRA) will trade on the March expiration cycle with initial expiration months September, October, December, January, and March. Position and exercise limits have been set at 200,000 contracts.

The Philadelphia Stock Exchange was founded in 1790. The PHLX trades 2,000 stocks, 1,703 equity options, 25 sectors index options and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com