In connection with the listing of the Board of Trade of the City of Chicago, Inc.’s (“CBOT” or “Exchange”) Tuesday and Thursday Weekly Options on Short-Term U.S. Treasury Note Futures (2-Year), Medium-Term U.S. Treasury Note Futures (5-Year), U.S. Treasury Note Futures (6 ½ to 8 Year), Ultra 10-Year U.S. Treasury Note Futures, U.S. Treasury Bond Futures, and Ultra U.S. Treasury Bond Futures contracts (collectively the “Contracts”) on trade date Monday, June 16, 2025 (see SER-9566R dated May 22, 2025), please note below and in Appendix B of CBOT Submission No. 25-178 the corresponding aggregation allocations (Rule 559.D.), accountability levels, and reportable levels (Rule 561) for the new contracts. For the full text of this notice, please see link attached below.