Effective on August 7, 2026, and pending all relevant CFTC regulatory review periods, Chicago Mercantile Exchange Inc. (“CME”), in its capacities as both a designated contract market (“DCM”) and a derivatives clearing organization (“DCO” or “CME Clearing”), The Board of Trade of the City of Chicago, Inc. (“CBOT”), New York Mercantile Exchange, Inc. (“NYMEX”) and Commodity Exchange, Inc. (“COMEX”), in their capacities as DCMs, (each an “Exchange” and collectively, the “Exchanges”) will amend CME, CBOT, NYMEX/COMEX Rule 916 to establish that Weekend Hours will end at 3:59 p.m. central time on Sunday, opposed to 4:59 p.m. central time on Sunday (the “Rule Amendments”). The Rule Amendments provide that Weekend Hours include the hours from 4:00 p.m. central time on Friday through 3:59 p.m. central time on Sunday.

The Rule Amendments may be found in Exhibit A of this rule filing here. Should you have any questions, please contact Clearing Risk Management: clearing.riskmanagement@cmegroup.com +1(312)-648-3888

For the full text of this advisory, please click the link below.