QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2026 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growthcompany. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. If 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 financialaccounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YesNo Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date: TABLE OF CONTENTS PART I. FINANCIAL INFORMATION7Item 1.Financial Statements (unaudited)7Condensed Consolidated Balance Sheets—As of June 30, 2026 and December 31, 20257Condensed Consolidated Statements of Income—Three and Six Months Ended June 30, 2026 and 20258Condensed Consolidated Statements of Comprehensive Income—Three and Six Months Ended June 30, 2026 and20259Condensed Consolidated Statements of Changes in Stockholders’ Equity—Three and Six Months Ended June 30,2026 and 202510Condensed Consolidated Statements of Cash Flows—Six Months Ended June 30, 2026 and 202511Notes to Condensed Consolidated Financial Statements12Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations48Item 3.Quantitative and Qualitative Disclosures about Market Risk81Item 4.Controls and Procedures85PART II. OTHER INFORMATION86Item 1.Legal Proceedings86Item 1A.Risk Factors86Item 2.Unregistered Sales of Equity Securities and Use of Proceeds86Item 3.Defaults upon Senior Securities87Item 4.Mine Safety Disclosures87Item 5.Other Information87Item 6.Exhibits88SIGNATURES89 CERTAIN DEFINED TERMS Throughout this document, unless otherwise specified or the context so requires: •“Cboe,” “we,” “us,” “our” or “the Company” refers to Cboe Global Markets, Inc. and its subsidiaries.•“ADV” means average daily volume.•“ADNV” means average daily notional value.•“AFM” refers to the Netherlands Authority for the Financial Markets.•“ATS” refers to an alternative trading system.•“Bats Global Markets” and “Bats” refer to our wholly-owned subsidiary Bats Global Markets, Inc., now known as Cboe Bats, LLC,and its subsidiaries.•“BIDS Holdings” refers to BIDS Holdings L.P., a wholly-owned subsidiary of Cboe Global Markets, Inc.•“BIDS Trading” refers to BIDS Trading L.P., a wholly-owned subsidiary of Cboe Global Markets, Inc. The ATS operated by BIDSTrading is not a registered national securities exchange or a facility thereof.•“BYX” refers to Cboe BYX Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.•“BZX” refers to Cboe BZX Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.•“C2” refers to Cboe C2 Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.•“CAT” refers to the Consolidated Audit Trail.•“Cboe Asia Pacific” refers to Cboe Asia Pacific Holdings Limited, a wholly-owned subsidiary of Cboe Global Markets, Inc.•“Cboe Australia” refers to Cboe Australia Pty Ltd., a wholly-owned subsidiary of Cboe Global Markets, Inc.•“Cboe Canada” refers to Cboe Canada Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc. and a recognized Canadiansecurities exchange.•“Cboe Chi-X Europe” refers to Cboe Chi-X Europe Limited, a wholly-owned subsidiary of Cboe Global Markets, Inc.•“Cboe Clear Europe” refers to Cboe Clear Europe N.V., a wholly-owned subsidiary of Cboe Global Markets, Inc.•“Cboe Clear U.S.” refers to Cboe Clear U.S., LLC (formerly known as Cboe Clear Digital, LLC, formerly defined as “Cboe ClearDigital”), a wholly-owned subsidiary of Cboe Global Markets, Inc.•“Cboe Data Vantage” refers to the Company's Cboe Data Vantage business (subsequently referred to as Data Vantage throughoutthe remainder of this document).•“Cboe Digital” refers to Cbo