The Philadelphia Stock Exchange To Begin Trading Options On CBOT Holdings, Inc. On April 25

The Philadelphia Stock Exchange (PHLX) announced today that it will begin trading options on CBOT Holdings, Inc. beginning Tuesday, April 25.

CBOT Holdings, Inc. (option/stock symbol: (BOT) will trade on the March expiration cycle with initial expiration months of May, June, September and December. Position and exercise limits have been set at 25,000 contracts. This option was allocated to Citigroup Derivatives Markets Inc.

The Philadelphia Stock Exchange was founded in 1790. The PHLX trades 1,950 stocks, 2,213 equity options, 20 sectors index options and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com.