Effective on February 26, 2025 and commencing with the June 2025 contract month and beyond (pending all relevant CFTC regulatory review periods), The Board of Trade of the City of Chicago, Inc. (“CBOT” or “Exchange”) will amend the spot month position limits of 30-Year Uniform Mortgage-Backed Securities (UMBS) To-Be-Announced (TBA) Futures contracts (2.0%, 2.5%, 3.0%, 3.5%, 4.5%, 5.0%, 5.5%, 6.0%, and 6.5% Coupon Rates) (the “Contracts”) as noted below and in Exhibit B of CBOT Submission No. 25-064. Please note that the spot month position limits for contract months up to and including the May 2025 contract month remain unchanged. For the full text of this notice, please see link attached below.