To update information concerning the CBOT® Dow Jones Industrial Average^sm Index ($25 Multiplier) futures contract launch, scheduled for trade date March 20, 2006, the following membership series will be eligible for membership privileges in this contract:

B-1 (Full);

B-2 (Associate); and

B-5 (IDEM).

*”Dow Jones^sm, “The Dow^sm”, “Dow Jones Industrial Average^sm”, and “DJIA^SM”, are service marks of Dow Jones & Company, Inc. and have been licensed for use for certain purposes by the Board of Trade of the City of Chicago, Inc. (“CBOT^®”).  The CBOT’s futures and futures options contracts based on the Dow Jones Industrial Average^sm are not sponsored, endorsed, sold or promoted by Dow Jones^sm, and Dow Jones^sm makes no representation regarding the advisability of trading in such product(s).