THE PHILADELPHIA STOCK EXCHANGE TO BEGIN TRADING THREE NEW OPTIONS ON SEPTEMBER 8

PHILADELPHIA —September 7, 2005 The Philadelphia Stock Exchange (PHLX) announced today that it will begin trading three new options beginning September 8. The options were allocated to McGowan Investment Group.

Ruth Chris Steak House (UUK/RUTH)(option/stock symbol UUK) will trade on the February expiration cycle with initial expiration months October, November, February, and May. Position and exercise limits have been set at 25,000 contracts.

RBC Bearings, Inc. (QJF/ROLL)(option/stock symbol: QJF) will trade on the February expiration cycle with initial expiration months October, November, February, and May. Position and exercise limits have been set at 25,000 contracts.

Seaspan Corporation (option/stock symbol: SSW) will trade on the February expiration cycle with initial expiration months October, November, February, and May. Position and exercise limits have been set at 25,000 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