{"url_path":"/sec/cme/8-k/2026-08-11/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-08-11","source_url":"https://www.sec.gov/Archives/edgar/data/1156375/0001156375-26-000051-index.html","accession_number":"0001156375-26-000051","cik":"0001156375","ticker":"CME","issuer_name":"CME GROUP INC.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1156375/0001156375-26-000051-index.html","primary_entity_key":"0001156375","primary_entity_name":"CME GROUP INC."},"word_count":294,"has_tables":true,"body_markdown":"cme-20260811\nfalse0001156375false000115637500011563752026-08-112026-08-1100011563752026-06-092026-06-09\n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWASHINGTON, D.C. 20549 \n\n_________________________________________________________\n\nFORM 8-K\n\n \n\n_________________________________________________________\n\nCURRENT REPORT\n\nPURSUANT TO SECTION 13 OR 15(d) OF THE\n\nSECURITIES EXCHANGE ACT OF 1934\n\nDate of report (Date of earliest event reported) August 11, 2026 (August 11, 2026)\n\n \n\n _________________________________________________________\n\nCME GROUP INC.\n\n(Exact Name of Registrant as Specified in its Charter) \n\n_________________________________________________________ \n\nDelaware001-3155336-4459170\n\n(State or Other Jurisdiction\nof Incorporation)(Commission\nFile No.)(IRS Employer\nIdentification No.)\n\n \n\n20 South Wacker DriveChicagoIllinois60606\n\n(Address of Principal Executive Offices)(Zip Code)\n\nRegistrant’s telephone number, including area code: (312) 930-1000\n\nN/A\n\n(Former Name or Former Address, if Changed Since Last Report) \n\n______________________________________________________\n\nCheck the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):\n\n☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\nSecurities registered pursuant to Section 12(b) of the Act:\n\nTitle of each classTrading symbolName of each exchange on which registered\n\nClass A Common StockCMENasdaq\n\nIndicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405) of this chapter or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).\n\nEmerging growth company  ☐\n\nIf an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐"}