CBOT Holdings, Inc. (BOT) Contract Adjustment due to Merger. Pursuant to the current understanding of the terms of the merger, each share of CBOT Holdings, Inc. Class A Common Stock outstanding immediately prior to the consummation of the Merger will be converted into the right to receive 0.375 share of CME Class A Common Stock. The effective date is close of business Thursday, July 12, 2007. In addition, CBOT Holdings, Inc. Class A (BOT) declared a special cash dividend of $9.14 per BOT Class A Common Share (Contingent Dividend). This corporate action will be coordinated with the Options Clearing Corporation.

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