CBOT Files Brief Challenging CBOE’S Unilateral Attempt To Terminate Exercise Right - CBOT Also Files Letter With The SEC Opposing CBOE’s Attempt To Circumvent State Court In Contract Dispute

CBOT Holdings, Inc. (“CBOT”) today announced that it has filed a brief in support of its motion for partial summary judgment in the Delaware Chancery Court against the Chicago Board Options Exchange (“CBOE”) and its Board. The CBOT also announced today that it filed a comment letter with the Securities and Exchange Commission (“SEC”) opposing the CBOE’s proposed rule change regarding the Exercise Right.

A copy of the brief and the SEC comment letter is available upon request.