CME Group Market Regulation Advisory Notices (MRANs)

Detected March 14th, 2026

Summary

CME Group has published a collection of Market Regulation Advisory Notices (MRANs) providing guidance on exchange rules. These notices cover various topics including position limits, block trades, and disruptive practices. The MRANs are applicable to CME, CBOT, NYMEX, and COMEX exchanges.

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What changed

CME Group's Market Regulation Department has compiled a list of current Market Regulation Advisory Notices (MRANs) that provide guidance on the rules applicable to its exchanges (CME, CBOT, NYMEX, and COMEX). These advisories cover a range of topics, including position limits, block trades, supervisory responsibilities, pre-execution communications, and disruptive practices, with links provided to the specific rule documents.

Regulated entities and market participants should review these MRANs to ensure compliance with CME Group's trading and operational rules. While no specific compliance deadline is mentioned, adherence to these advisories is expected as they clarify existing rule requirements. Questions can be directed to the Market Regulation Department via phone or email.

What to do next

Review current MRANs for applicable rules
Contact Market Regulation Department for clarification if needed

Source document (simplified)

RULEBOOK

Current Market Regulation Advisory Notices (MRANs)

Since the formation of CME Group as a result of the merger of CME and CBOT in 2007, and then the merger with NYMEX/COMEX in 2008, the Market Regulation Department has issued a series of Market Regulation Advisory Notices (MRANs) to the marketplace to provide guidance on the rules. Current MRANs appear below, grouped by the exchange(s) to which they are applicable.

For questions regarding any of the MRANs listed below, please contact the Market Regulation Department by phone at +1 312 341 7970 or via email at MarketReg.Outreach@cmegroup.com.

To obtain a copy of previously issued MRANs or other CME Group issued advisory notices, please use the Advisory Notice Search.