Amendments to CME and CBOT Rule 524. ("Trading at Settlement ('TAS'), Basis Trade at Index Close ('BTIC') and Basis Trade at Cash Open ('TACO') Transactions") to Include ("Trade Marker at Close ('TMAC') Transactions")

Effective on trade date Monday, July 31, 2023, and pending all relevant CFTC regulatory review periods, Chicago Mercantile Exchange Inc. (“CME”) and The Board of Trade of the City of Chicago, Inc. (“CBOT”) (collectively, the “Exchanges”) will amend CME and CBOT Rule 524. (“Trading at Settlement (‘TAS’), Basis Trade at Index Close (‘BTIC’) and Basis Trade at Cash Open (‘TACO’) Transactions”) to add new CME and CBOT Rule 524.D. (“Trade Marker at Close (‘TMAC’) Transactions”) (collectively, the “Rule Amendments”).

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