CME Group/Chicago HQ
Local: +1 312 930 1000
Toll Free: +1 866 716 7274
Global Customer Contacts
Product inquiries, website issues,
and specific questions
Phone: +1 312 930 2316
Toll Free: +1 800 331 3332
More CME Group Direct Lines
Phone list by department
|Overview||REGISTRATION FORM – Complete This Form|
|A Note on Block Trades||Links to Rulebook / Related Rules|
CME Group has implemented a registration process in order to provide firms with market maker contact information for the purpose of engaging in
Pre-execution communications for trades intended for execution on CME Globex are subject to the requirements of CME and CBOT Rule 539 and NYMEX Rule 11G.539. Block trades are subject to the requirements of CME and CBOT Rule 526, NYMEX Rule 6.21C and COMEX Rule 104.36C. Where allowed, customers may contact market makers for the purpose of engaging in block trades or in pre-execution communications with respect to the execution of options trades on CME Globex .
Please refer to the links below for the most recent CME and CBOT Market Regulation Advisory Notices regarding Pre-Execution Communications and Block Trades.
CME & CBOT Market Regulation Advisory Notice RA0903-3.pdf
CME & CBOT Market Regulation Advisory Notice RA0904-3.pdf
Block trades may take place only between Eligible Contract Participants (ECP) and are permitted only in certain products subject to specified minimum transaction quantities. For additional information regarding block trades please refer to the links below, which list all block-eligible products by exchange, along with reporting times and thresholds.
CME and CBOT block-eligible products, reporting times and thresholds
NYMEX Rule 526 – NYMEX block-eligible products, reporting times and thresholds
COMEX Rule 526 – COMEX block-eligible products, reporting times and thresholds
Submit a request below to receive applicable contact information for our market makers. These firms have provided dedicated resources for responding to allowable pre-execution discussion inquiries for equity, FX and interest rate products. You must fill out the form completely and accurately in order to receive the information.