

CME Group/Chicago HQ
Main Switchboard
Local: 312-930-1000
Toll Free: 866-716-7274
Customer Service
Product inquiries, website issues, and specific questions
Phone: 312-930-2316
Toll Free: 800-331-3332
E-mail: info@cmegroup.com
More CME Group Direct Lines
Click for phone list by department
Trading hours are in U.S. Central Time, the time in Chicago, where CME Group is headquartered, with one exception: hours for Eurozone HICP futures and options are in London time. Click here to view the Holiday Calendar.
For a listing of closing range time periods for CME and CBOT products traded via open outcry, please click here.