
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
It’s possible that at some point in your trading life a problem, misunderstanding or disagreement will occur. If so, you can often resolve such problems by:
Immediately discuss any problem with your firm. As days pass, losses can mount, recollections can fade and information can be lost.
When you have a question about your account or a trade, first ask your account representative or your firm's compliance officer what happened and why. Give the firm an opportunity to look into the matter and clear it up for you, or fix a mistake if one has been made. Most differences can be resolved in this way. You can find a list of CME Group’s clearing firms in the CME Group Clearing Firm Directory
Contact one of these entities if you can't resolve your situation with or through your firm or you believe your problem is the result of a violation of CME, CBOT, NFA or CFTC rules or regulations.
If You Are Seeking Restitution
If you make a complaint about a possible rule violation, the ensuing investigation will be conducted with complete confidentiality.
Customer Arbitration Guide
CME Group, through the Market Regulation department, offers a forum for resolving certain disputes concerning its CME or CBOT subsidiaries.