Stock exchanges moved higher today on news that Chicago Merchantile Exchange Holdings (NYSE:CME) was buying CBOT Holdings, Inc. (NYSE:BOT) in a bid to create a combined $25 billion global derivatives exchange. This acquisition follows the bidding war between NASDAQ and the NYSE for the London Stock Exchange, which eventually failed after the LSE rejected the bids in favor of a buyout by Ameriprise Financial. With the possibility of more consolidation in the air, many stock exchange stocks rose today:

InterContinental Exchange, Inc. (NYSE:ICE)
International Securities Exchange Holdings Inc. (NYSE:ISE)
NYSE Group, Inc. (NYSE:NYX)
NASDAQ Stock Market, Inc. (NDAQ:NDAQ)