SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]
Principles of Accounting and Basis of Presentation	(a) Principles of Accounting These consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States (“GAAP”) as established by FASB. (b) Basis of Presentation The accompanying financial statements are presented on a consolidated basis to include the accounts and transactions of Cboe Global Markets, Inc. and its majority owned subsidiaries and all significant intercompany accounts and transactions have been eliminated. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities, and reported amounts of revenues and expenses. On an ongoing basis, management evaluates its estimates based upon historical experience, observance of trends, information available from outside sources and various other assumptions that management believes to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of financial position, results of operations, and cash flows at the dates and for the periods presented have been included.
Segment Information	Segment Information The Company previously operated six reportable business segments as of December 31, 2024. As of January 1, 2025, the Company operates five reportable business segments: Options, North American Equities, Europe and Asia Pacific, Futures, and Global FX, which are further described below and are reflective of how the Company's Chief Operating Decision Maker ("CODM") reviews and operates the business. See Note 16 ("Segment Reporting") for more information.
Use of Estimates	(c) Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as well as disclosure of the amounts of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. Material estimates that are particularly susceptible to significant change in the near term include the valuation of goodwill, indefinite-lived intangible assets, and unrecognized tax benefits.
Cash and Cash Equivalents	(d) Cash and Cash Equivalents The Company’s cash and cash equivalents are exposed to concentrations of credit risk. The Company maintains cash at various regulated financial institutions and brokerage firms which, at times, may be in excess of the depository insurance limits. The Company’s management regularly monitors these institutions and believes that the potential for future loss is remote. The Company considers liquid investments, including certain short-term repurchase agreements and U.S. and UK Treasury securities, with original or acquired maturities of three months or less, and money market funds, to be cash equivalents.
Financial Investments	(e) Financial Investments Financial investments are classified as trading or available-for-sale. Trading financial investments represent financial investments held by Cboe Trading that retain the industry-specific accounting classification required for broker-dealers, and marketable securities held in a rabbi trust for the Company’s non-qualified retirement and benefit plans. The investments held by the broker-dealer subsidiary are recorded at fair value with changes in unrealized gains and losses reflected within interest income or interest expense in the consolidated statements of income. The investments held in a trust are recorded at fair value with changes in unrealized gains or losses recorded within other income (expense), net and the equal and offsetting charges in the related liability are recorded in compensation and benefits expense in the consolidated statements of income as it relates to employee compensation plans and recorded in professional fees and outside services expense in the consolidated statements of income as it relates to non-employee director compensation plans. Available-for-sale financial investments are comprised of the financial investments not held by Cboe Trading, including highly liquid U.S. Treasury securities. Interest on financial investments, including amortization of premiums and accretion of discounts, is recognized as income when earned. Realized gains and losses on financial investments are calculated using the specific identification method and are included in interest income and interest expense in the accompanying consolidated statements of income.
Accounts Receivable, Net	(f) Accounts Receivable, Net Accounts receivable are concentrated with the Company’s member firms and market data distributors and are carried at amortized cost. The Company nets transaction fees and liquidity payments for each member firm on a monthly basis and recognizes the total owed from a member firm as accounts receivable, net and the total owed to a member firm as accounts payable and accrued liabilities in the consolidated balance sheets. On a periodic basis, management evaluates the Company’s accounts receivable and records an allowance for expected credit losses using an aging schedule. The aging schedule applies loss rates based on historical loss information and, as deemed necessary, is adjusted for differences in the nature of the receivables that exist at the reporting date from the historical period. Due to the short-term nature of the accounts receivable, changes in future economic conditions are not expected to have a significant impact on the expected credit losses. The accounts receivable are presented net of allowance for credit losses on the consolidated balance sheets and the associated losses are presented in other operating expenses on the consolidated statements of income.
Property and Equipment, Net	(g) Property and Equipment, Net Property and equipment, net is stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated lives of the assets, generally ranging from three to seven years. Expenditures for repairs and maintenance are charged to expense as incurred. Depreciation of leasehold improvements is calculated using the straight-line method over the shorter of the related lease term or the estimated useful life of the assets. Long-lived assets to be held and used are reviewed to determine whether any events or changes in circumstances indicate that the carrying values of the assets may not be recoverable. The Company bases this evaluation on such impairment indicators as the nature of the assets, the future economic benefit of the assets, any historical or future profitability measurements, as well as other external market conditions or factors that may be present. If such impairment indicators are present that would indicate that the carrying value of any asset may not be recoverable, the Company determines whether an impairment has occurred through the use of an undiscounted cash flow analysis of the asset at the lowest level for which identifiable cash flows exist. In the event of impairment, the Company recognizes a loss for the difference between the carrying value and the estimated value of the asset as measured using quoted market prices or, in the absence of quoted market prices, a discounted cash flow analysis. Impairment charges concerning long-lived assets were made during the periods presented. See Note 9 ("Other Assets, Net") for additional information. The Company expenses software development costs as incurred during the preliminary project stage, while capitalizing costs incurred during the application development stage, which includes design, coding, installation, and testing activities.
Goodwill and Intangible Assets, Net	(h) Goodwill and Intangible Assets, Net Goodwill represents the excess of purchase price over the value assigned to the net tangible and identifiable intangible assets of a business acquired. Goodwill is allocated to the Company’s reporting units based on the assignment of the fair values of each reporting unit of the acquired company. The Company tests goodwill for impairment at the reporting unit level annually, or in interim periods if certain events occur indicating that the carrying value may be impaired. Intangible assets, net, primarily include acquired trademarks and trade names, customer relationships, strategic alliance agreements, licenses and registrations, and non-compete agreements. Intangible assets with finite lives are amortized based on the discounted cash flow method applied over the estimated useful lives of the intangible assets and are tested for impairment if certain events occur indicating that the carrying value may be impaired. Intangible assets deemed to have indefinite useful lives are not amortized, but instead are tested for impairment at least annually, usually concurrently with goodwill. Impairment exists if the fair value of the asset is less than the carrying value, and in that case, an impairment loss is recorded. Impairment charges concerning intangible assets were made during the periods presented. See Note 10 ("Goodwill, Intangible Assets, Net and Digital Assets Held") for additional information.
Treasury Stock	(i) Treasury Stock The Company accounts for the purchase of treasury stock under the cost method with the shares of stock repurchased, plus any direct costs and excise taxes, reflected as a reduction to Cboe stockholders’ equity and included in common stock in treasury, at cost in the consolidated balance sheets. Shares repurchased under the Company’s share repurchase program are either available to be redistributed or they are retired. The Company accounts for the retirement of treasury stock by deducting its par value from common stock and reflecting any excess of cost over par value as a deduction from additional paid-in-capital or retained earnings on the consolidated balance sheets.
Foreign Currency	(j) Foreign Currency The financial statements of foreign subsidiaries where the functional currency is not the U.S. dollar are translated into U.S. dollars using the exchange rate in effect as of each balance sheet date. Statements of income and cash flow amounts are translated using the average exchange rate during the period. The cumulative effects of translating the balance sheet accounts from the functional currency into the U.S. dollar at the applicable exchange rates are included in accumulated other comprehensive loss, net in the accompanying consolidated balance sheets. Foreign currency gains and losses are recorded as other (expense) income, net in the consolidated statements of income. The Company’s operations in the United Kingdom, the Netherlands, Canada, Australia, Japan, Singapore, the Philippines, and Hong Kong are recorded in Pounds sterling, Euros, Canadian dollars, Australian dollars, Japanese yen, Singapore dollars, Philippine pesos, and Hong Kong dollars, respectively.
Income Taxes	(k) Income Taxes Deferred taxes are recorded on a liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carryforwards, and deferred tax liabilities are recognized for taxable temporary differences. Temporary differences are the differences between the reported amounts of assets and liabilities and their tax bases. Deferred tax assets are reduced by valuation allowances when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. The Company recognizes the tax benefit from an unrecognized tax benefit only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based upon the technical merits of the position. The tax benefit recognized in the consolidated financial statements from such a position is measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Also, interest and penalties expense is recognized on the full amount of deferred benefits for unrecognized tax benefits. The Company’s policy is to include interest and penalties related to unrecognized tax benefits in the income tax provision within the consolidated statements of income. The Company has elected to account for net controlled foreign corporation tested income ("NCTI"), formerly global intangible low-taxed income ("GILTI"), in the period in which it is incurred, and therefore has not provided any deferred tax impacts of NCTI in the consolidated financial statements.
Revenue Recognition	(l) Revenue Recognition For further discussion related to revenue recognition of fees, such as transaction and clearing fees and liquidity payments, access and capacity fees, market data fees, and regulatory transaction and Section 31 fees, see Note 4 ("Revenue Recognition").
Concentrations of Revenue	Concentrations of Revenue For each of the years ended December 31, 2025, 2024, and 2023, one customer accounted for approximately 10% of the Company’s total revenue. The revenues associated with this customer are included in the Options, North American Equities, Europe and Asia Pacific, Global FX and Futures segments and totaled $480.0 million, $403.1 million, and $389.4 million for the years ended December 31, 2025, 2024, and 2023, respectively. No customer is contractually or otherwise obligated to continue to use the Company’s services. The loss of, or a significant reduction of, participation by these customers may have a material adverse effect on the Company’s business, financial position, results of operations, and cash flows. The three largest clearing members clear approximately 71% of the market-maker sides of transactions at all of the Company’s U.S. options exchanges. If any of these clearing members were to withdraw from the business of market-maker clearing and market-makers were unable to transfer to another clearing member, this could create significant disruption to the U.S. options markets, including Cboe’s.
Earnings Per Share	(m) Earnings Per Share The computation of basic earnings per share is calculated by reducing net income for the period by dividends paid or declared and undistributed net income for the period that are allocated to participating securities to arrive at net income allocated to common stockholders. Net income allocated to common stockholders is divided by the weighted average number of common shares outstanding during the period to determine net income per share allocated to common stockholders. The computation of diluted earnings per share is calculated by dividing net income allocated to common stockholders by the sum of the weighted average number of common shares outstanding plus all additional common shares that would have been outstanding if the potentially dilutive common shares had been issued. The dilutive effect is calculated using the more dilutive of the two-class or treasury stock method.
Stock-Based Compensation	(n) Stock-Based Compensation The Company grants stock-based compensation to its employees and directors through restricted stock units (“RSUs”) and performance-based restricted stock units (“PSUs”). The Company records stock-based compensation expense for all stock-based compensation granted based on the grant-date fair value. The Company recognizes stock-based compensation expense related to stock-based compensation awards with graded vesting that have a service condition on a straight-line basis over the requisite service period of the entire award. For RSUs, the amount of stock-based compensation expense is based on the fair value of Cboe Global Markets, Inc. common stock at the date of grant. The fair value is based on a current market-based transaction of the Company’s common stock.
Business Combinations	(o) Business Combinations The Company records identifiable assets, liabilities and goodwill acquired in a business combination at fair value at the acquisition date. Additionally, transaction-related costs are expensed in the period incurred.
Debt Issuance Costs	(p) Debt Issuance Costs All costs incurred to issue debt are capitalized as a contra-liability and amortized over the life of the debt using the interest method.
Investments	(q) Investments The Company generally accounts for investments using the measurement alternative when it owns less than 20% of the outstanding voting stock of a company, there is an absence of readily determinable fair value for the respective investment, and the Company has an inability to exercise significant influence over the investment based upon the respective ownership interests held. The Company recognizes dividend income when declared. In general, the equity method of accounting is used when the Company owns 20% to 50% of the outstanding voting stock of a company and when it is able to exercise significant influence over the operating and financial policies of a company. For equity method investments, the Company records the pro rata share of earnings or losses each period and records any dividends received as a reduction in the investment balance. The equity method investment is inclusive of other-than-temporary declines in value, recognized by the investee, who considers a variety of factors such as the earnings capacity of the investment and the fair value of the investment compared to its carrying value. If the estimated fair value of the investment is less than the carrying value and the decline in value is considered to be other than temporary, the excess of the carrying value over the estimated fair value is recognized in the financial statements as an impairment. The Company’s investment in 7Ridge Investments 3 LP ("7Ridge Fund") represents a nonconsolidated variable interest entity (“VIE”) and is accounted for under the equity method of accounting. The Company has determined that consolidation of the VIE is not required as the Company is not the primary beneficiary of the 7Ridge Fund, as it does not have controlling financial interest and lacks the ability to unilaterally remove the general partner, 7Ridge Investments 3 GP Limited, direct material strategic decisions, or dissolve the entity (i.e. the Company does not have unilateral substantive “kick-out” or “liquidation” rights).
Leases	(r) Leases The Company determines if an arrangement contains a lease at inception. For arrangements where the Company is the lessee, operating leases are included in operating lease right of use (“ROU”) assets, accrued liabilities, and non-current operating lease liabilities on the balance sheet as of December 31, 2025. The Company does not have any finance leases as of December 31, 2025. ROU assets and operating lease liabilities are recognized based on the present value of the future lease payments over the lease term at commencement date. ROU assets also include any initial direct costs incurred and any lease payments made at or before the lease commencement date, less lease incentives received. The Company uses its incremental borrowing rate based on the information available at the lease commencement date in determining the lease liabilities, as the rate implicit in the Company’s leases is generally not reasonably determinable. Lease terms may include options to extend or terminate when the Company is reasonably certain that the option will be exercised. Lease expense is recognized on a straight-line basis over the lease term. The Company also has lease arrangements with lease and non-lease components. The Company elected the practical expedient not to separate non-lease components from lease components for the Company’s leases. The Company elected to apply the short-term lease measurement and recognition exemption in which ROU assets and lease liabilities are not recognized for short-term leases. For short-term operating leases, lease expense is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheets and the Company recognizes lease expense in facilities costs within the consolidated statements of income for these leases on a straight-line basis over the lease term. Certain leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or more, and some of which include the Company’s option to terminate the leases within one year. When the implicit rate in the Company’s lease is not reasonably determinable, the Company applies an incremental borrowing rate based on the information available at the lease commencement date in determining the present value of lease payments.
Margin Deposits, Clearing Funds, and Interoperability Funds	(s) Margin Deposits, Clearing Funds, and Interoperability Funds Margin deposits, clearing funds, and interoperability funds in the form of cash contributions by Cboe Clear Europe’s clearing members where title has transferred to Cboe Clear Europe are included as current assets with equal and offsetting current liabilities in the consolidated balance sheets. Changes in margin deposits, clearing funds, and interoperability funds, are presented net in the “restricted cash and cash equivalents and customer bank deposits (included in margin deposits, clearing funds, and interoperability funds)” line in the operating section of the consolidated statement of cash flows. Similarly, cash flows associated with related investment agreements as well as interest income earned on such investments will be classified as cash flows from operating activities in the consolidated statement of cash flows. Both activities are part of Cboe Clear Europe’s principal operating activities and are presented within the operating section of the consolidated statement of cash flows. When investments are made in accordance with its investment policy, Cboe Clear Europe receives the amount of investment earnings and pays clearing members those earnings minus a set basis point cost of collateral. Related interest income and interest expense are presented gross in the consolidated statement of income in other revenue and other cost of revenue, respectively, as it relates to a core operating activity of Cboe Clear Europe. Cboe Clear U.S. holds cash on behalf of its customers for the purposes of supporting clearing transactions. Customer cash may be invested in approved investments and any interest or gain received, or loss incurred on invested funds is recorded in the consolidated statements of income. The Company includes customer cash related to the clearing activity on the consolidated balance sheets in margin deposits, clearing funds, and interoperability funds, with a corresponding liability.
Digital Assets Held	(t) Digital Assets Held The Company determined that digital assets held should be accounted for under ASC 350 – Intangibles – Goodwill and Other, and included on the consolidated balance sheets within intangibles, net. As there is no inherent limit imposed on the useful life of the digital assets, they are classified as indefinite-lived intangible assets and are not subject to amortization. Instead, they are tested for impairment annually or more frequently if events or circumstances change that indicate it is more likely than not that the asset is impaired (i.e., if an impairment indicator exists). The Company will not record any increases in value during the period the digital assets are held; the only gains that are recorded are upon disposition (if the proceeds exceed the carrying value at the time of the disposition).
Recent Accounting Pronouncements - Adopted and Issued, not yet Adopted	Recent Accounting Pronouncements – Adopted On January 23, 2025, the SEC issued Staff Accounting Bulletin 122 (“SAB 122”), which rescinds the interpretive guidance included in the Staff Accounting Bulletin 121 (“SAB 121”). SAB 121, issued March 31, 2022, provided interpretive guidance from the SEC regarding the accounting for obligations to safeguard digital assets that an entity holds on behalf of customers. For public entities, SAB 122 is effective on a fully retrospective basis in annual periods beginning after December 15, 2024. Additionally, SAB 122 was codified by the FASB in March 2025, under Accounting Standards Update ("ASU") 2025-02, Liabilities (405): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 122. The Company adopted the guidance for the consolidated financial statements issued for the year ended December 31, 2025 and, therefore, no longer discloses safeguarded digital assets within Note 8 (“Goodwill, Intangible Assets, Net, and Digital Assets Held”), Note 13 (“Fair Value Measurement”), and the consolidated balance sheets. The adoption had no material impact on the previously reported condensed consolidated financial statements as the Company liquidated all digital assets held on behalf of customers in the third quarter of 2024. In December 2023, the FASB issued ASU 2023-08, Intangibles – Goodwill and Other – Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets. This ASU addresses the accounting and disclosure requirements for certain crypto assets and requires entities to subsequently measure certain crypto assets at fair value, with changes in fair value recorded in earnings in each reporting period. In addition, entities are required to provide additional disclosures about the holdings of certain crypto assets. For public entities, the update is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2024. The Company adopted the update for the consolidated financial statements issued for the year ended December 31, 2025, and it does not have a material impact on the consolidated financial statements as the Company does not hold a material amount of crypto assets at December 31, 2025. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This ASU addresses investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. For public entities, the update is effective for fiscal years beginning after December 15, 2024. The Company adopted the update for the consolidated financial statements issued for the year ending December 31, 2025. The Company elected to apply the standard retrospectively to enhance comparability across periods. The required disclosures, as applicable, are included in Note 21 ("Income Taxes"), and reflect the extent of the impact of the adoption of ASU 2023-09 on the consolidated financial statement disclosures. Recent Accounting Pronouncements – Issued, not yet Adopted In September 2025, the FASB issued ASU 2025-06 – Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. ASU 2025-06 eliminates the traditional stages for internal use software (preliminary, development, post-implementation) used to determine when to capitalize costs. Instead, capitalization begins when both management has authorized and committed funding for the project and it is probable the project will be completed and the software will be used as intended. The amendments will be effective for all entities for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period. The Company expects to adopt the update for the annual financial statements issued for the year ending December 31, 2027, and is currently reviewing the impact that the adoption of ASU 2025-06 may have on the consolidated financial statement disclosures. In November 2024, the FASB issued ASU 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This ASU requires disaggregated disclosure of certain income statement expenses for public entities. For public entities, the update is effective for fiscal years beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. The Company expects to adopt the update for the annual financial statements issued for the year ending December 31, 2027, and is currently reviewing the impact that the adoption of ASU 2024-03 may have on the consolidated financial statement disclosures. On March 6, 2024, the SEC adopted new Climate Disclosure Rules, which require companies to publish information that describes the climate-related risks that are reasonably likely to have a material impact on a company’s business or consolidated financial statements. The final rules would require companies to disclose material climate-related risks, activities to mitigate or adapt to such risks, information about the companies’ board of directors’ oversight of climate-related risks and management’s role in managing climate-related risks, and information on any climate-related targets or goals that are material to the companies’ business, results of operations or financial condition. On March 15, 2024, the U.S. Court of Appeals for the Fifth Circuit granted an administrative stay of the SEC’s final Climate Disclosure Rules, in response to legal challenges unaffiliated with the Company. On February 11, 2025, the acting Chairman of the SEC directed the SEC staff to notify the court of changed circumstances and requested that the Court not schedule the case for argument. On March 27, 2025, the SEC voted to end its defense of its Climate Disclosure Rules. On April 24, 2025, the U.S. Court of Appeals for the Eighth Circuit (the “Court”) granted an order to hold in abeyance the cases regarding the validity of the SEC's final Climate Disclosure Rules. On July 23, 2025, the SEC replied to the Court’s request for a status report. The SEC informed the Court that it does not intend to review or reconsider the Climate Disclosure Rules at this time and requests that the Court decide the case as briefed. On September 12, 2025, the Court issued an order continuing the abeyance until the SEC reconsiders the Climate Disclosure Rules via notice-and-comment or renews its defense of the Climate Disclosure Rules. The Company will continue to monitor updates to the Climate Disclosure Rules and potential impacts on the consolidated financial statements. There were no other recent applicable material accounting pronouncements that have been issued, but not yet adopted as of December 31, 2025.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2025

Principles of Accounting and Basis of Presentation

(a) Principles of Accounting

These consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States (“GAAP”) as established by FASB.

(b) Basis of Presentation

The accompanying financial statements are presented on a consolidated basis to include the accounts and transactions of Cboe Global Markets, Inc. and its majority owned subsidiaries and all significant intercompany accounts and transactions have been eliminated.

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities, and reported amounts of revenues and expenses. On an ongoing basis, management evaluates its estimates based upon historical experience, observance of trends, information available from outside sources and various other assumptions that management believes to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions.

In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of financial position, results of operations, and cash flows at the dates and for the periods presented have been included.

Segment Information

The Company previously operated six reportable business segments as of December 31, 2024. As of January 1, 2025, the Company operates five reportable business segments: Options, North American Equities, Europe and Asia Pacific, Futures, and Global FX, which are further described below and are reflective of how the Company's Chief Operating Decision Maker ("CODM") reviews and operates the business. See Note 16 ("Segment Reporting") for more information.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as well as disclosure of the amounts of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. Material estimates that are particularly susceptible to significant change in the near term include the valuation of goodwill, indefinite-lived intangible assets, and unrecognized tax benefits.

Cash and Cash Equivalents

(d) Cash and Cash Equivalents

The Company’s cash and cash equivalents are exposed to concentrations of credit risk. The Company maintains cash at various regulated financial institutions and brokerage firms which, at times, may be in excess of the depository insurance limits. The Company’s management regularly monitors these institutions and believes that the potential for future loss is remote. The Company considers liquid investments, including certain short-term repurchase agreements and U.S. and UK Treasury securities, with original or acquired maturities of three months or less, and money market funds, to be cash equivalents.

Financial Investments

(e) Financial Investments

Financial investments are classified as trading or available-for-sale.

Trading financial investments represent financial investments held by Cboe Trading that retain the industry-specific accounting classification required for broker-dealers, and marketable securities held in a rabbi trust for the Company’s non-qualified retirement and benefit plans. The investments held by the broker-dealer subsidiary are recorded at fair value with changes in unrealized gains and losses reflected within interest income or interest expense in the consolidated statements of income. The investments held in a trust are recorded at fair value with changes in unrealized gains or losses recorded within other income (expense), net and the equal and offsetting charges in the related liability are recorded in compensation and benefits expense in the consolidated statements of income as it relates to employee compensation plans and recorded in professional fees and outside services expense in the consolidated statements of income as it relates to non-employee director compensation plans.

Available-for-sale financial investments are comprised of the financial investments not held by Cboe Trading, including highly liquid U.S. Treasury securities.

Interest on financial investments, including amortization of premiums and accretion of discounts, is recognized as income when earned. Realized gains and losses on financial investments are calculated using the specific identification method and are included in interest income and interest expense in the accompanying consolidated statements of income.

Accounts Receivable, Net

(f) Accounts Receivable, Net

Accounts receivable are concentrated with the Company’s member firms and market data distributors and are carried at amortized cost. The Company nets transaction fees and liquidity payments for each member firm on a monthly basis and recognizes the total owed from a member firm as accounts receivable, net and the total owed to a member firm as accounts payable and accrued liabilities in the consolidated balance sheets. On a periodic basis, management evaluates the Company’s accounts receivable and records an allowance for expected credit losses using an aging schedule. The aging schedule applies loss rates based on historical loss information and, as deemed necessary, is adjusted for differences in the nature of the receivables that exist at the reporting date from the historical period. Due to the short-term nature of the accounts receivable, changes in future economic conditions are not expected to have a significant impact on the expected credit losses.

The accounts receivable are presented net of allowance for credit losses on the consolidated balance sheets and the associated losses are presented in other operating expenses on the consolidated statements of income.

Property and Equipment, Net

(g) Property and Equipment, Net

Property and equipment, net is stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated lives of the assets, generally ranging from three to seven years. Expenditures for repairs and maintenance are charged to expense as incurred. Depreciation of leasehold improvements is calculated using the straight-line method over the shorter of the related lease term or the estimated useful life of the assets.

Long-lived assets to be held and used are reviewed to determine whether any events or changes in circumstances indicate that the carrying values of the assets may not be recoverable. The Company bases this evaluation on such impairment indicators as the nature of the assets, the future economic benefit of the assets, any historical or future profitability measurements, as well as other external market conditions or factors that may be present. If such impairment

indicators are present that would indicate that the carrying value of any asset may not be recoverable, the Company determines whether an impairment has occurred through the use of an undiscounted cash flow analysis of the asset at the lowest level for which identifiable cash flows exist. In the event of impairment, the Company recognizes a loss for the difference between the carrying value and the estimated value of the asset as measured using quoted market prices or, in the absence of quoted market prices, a discounted cash flow analysis. Impairment charges concerning long-lived assets were made during the periods presented. See Note 9 ("Other Assets, Net") for additional information.

The Company expenses software development costs as incurred during the preliminary project stage, while capitalizing costs incurred during the application development stage, which includes design, coding, installation, and testing activities.

Goodwill and Intangible Assets, Net

(h) Goodwill and Intangible Assets, Net

Goodwill represents the excess of purchase price over the value assigned to the net tangible and identifiable intangible assets of a business acquired. Goodwill is allocated to the Company’s reporting units based on the assignment of the fair values of each reporting unit of the acquired company. The Company tests goodwill for impairment at the reporting unit level annually, or in interim periods if certain events occur indicating that the carrying value may be impaired.

Intangible assets, net, primarily include acquired trademarks and trade names, customer relationships, strategic alliance agreements, licenses and registrations, and non-compete agreements. Intangible assets with finite lives are amortized based on the discounted cash flow method applied over the estimated useful lives of the intangible assets and are tested for impairment if certain events occur indicating that the carrying value may be impaired.

Intangible assets deemed to have indefinite useful lives are not amortized, but instead are tested for impairment at least annually, usually concurrently with goodwill. Impairment exists if the fair value of the asset is less than the carrying value, and in that case, an impairment loss is recorded.

Impairment charges concerning intangible assets were made during the periods presented. See Note 10 ("Goodwill, Intangible Assets, Net and Digital Assets Held") for additional information.

Treasury Stock

(i) Treasury Stock

The Company accounts for the purchase of treasury stock under the cost method with the shares of stock repurchased, plus any direct costs and excise taxes, reflected as a reduction to Cboe stockholders’ equity and included in common stock in treasury, at cost in the consolidated balance sheets. Shares repurchased under the Company’s share repurchase program are either available to be redistributed or they are retired. The Company accounts for the retirement of treasury stock by deducting its par value from common stock and reflecting any excess of cost over par value as a deduction from additional paid-in-capital or retained earnings on the consolidated balance sheets.

Foreign Currency

(j) Foreign Currency

The financial statements of foreign subsidiaries where the functional currency is not the U.S. dollar are translated into U.S. dollars using the exchange rate in effect as of each balance sheet date. Statements of income and cash flow amounts are translated using the average exchange rate during the period. The cumulative effects of translating the balance sheet accounts from the functional currency into the U.S. dollar at the applicable exchange rates are included in accumulated other comprehensive loss, net in the accompanying consolidated balance sheets. Foreign currency gains and losses are recorded as other (expense) income, net in the consolidated statements of income. The Company’s operations in the United Kingdom, the Netherlands, Canada, Australia, Japan, Singapore, the Philippines, and Hong Kong are recorded in Pounds sterling, Euros, Canadian dollars, Australian dollars, Japanese yen, Singapore dollars, Philippine pesos, and Hong Kong dollars, respectively.

Income Taxes

(k) Income Taxes

Deferred taxes are recorded on a liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carryforwards, and deferred tax liabilities are recognized for taxable temporary differences. Temporary differences are the differences between the reported amounts of assets and liabilities and their tax bases. Deferred tax assets are reduced by valuation allowances when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment.

The Company recognizes the tax benefit from an unrecognized tax benefit only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based upon the technical merits of the position. The tax benefit recognized in the consolidated financial statements from such a position is measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Also, interest and penalties expense is recognized on the full amount of deferred benefits for unrecognized tax benefits. The Company’s policy is to include interest and penalties related to unrecognized tax benefits in the income tax provision within the consolidated statements of income.

The Company has elected to account for net controlled foreign corporation tested income ("NCTI"), formerly global intangible low-taxed income ("GILTI"), in the period in which it is incurred, and therefore has not provided any deferred tax impacts of NCTI in the consolidated financial statements.

Revenue Recognition

(l) Revenue Recognition

For further discussion related to revenue recognition of fees, such as transaction and clearing fees and liquidity payments, access and capacity fees, market data fees, and regulatory transaction and Section 31 fees, see Note 4 ("Revenue Recognition").

Concentrations of Revenue

For each of the years ended December 31, 2025, 2024, and 2023, one customer accounted for approximately 10% of the Company’s total revenue. The revenues associated with this customer are included in the Options, North American Equities, Europe and Asia Pacific, Global FX and Futures segments and totaled $480.0 million, $403.1 million, and $389.4 million for the years ended December 31, 2025, 2024, and 2023, respectively.

No customer is contractually or otherwise obligated to continue to use the Company’s services. The loss of, or a significant reduction of, participation by these customers may have a material adverse effect on the Company’s business, financial position, results of operations, and cash flows. The three largest clearing members clear approximately 71% of the market-maker sides of transactions at all of the Company’s U.S. options exchanges. If any of these clearing members were to withdraw from the business of market-maker clearing and market-makers were unable to transfer to another clearing member, this could create significant disruption to the U.S. options markets, including Cboe’s.

Earnings Per Share

(m) Earnings Per Share

The computation of basic earnings per share is calculated by reducing net income for the period by dividends paid or declared and undistributed net income for the period that are allocated to participating securities to arrive at net income allocated to common stockholders. Net income allocated to common stockholders is divided by the weighted average number of common shares outstanding during the period to determine net income per share allocated to common stockholders.

The computation of diluted earnings per share is calculated by dividing net income allocated to common stockholders by the sum of the weighted average number of common shares outstanding plus all additional common shares that would have been outstanding if the potentially dilutive common shares had been issued. The dilutive effect is calculated using the more dilutive of the two-class or treasury stock method.

Stock-Based Compensation

(n) Stock-Based Compensation

The Company grants stock-based compensation to its employees and directors through restricted stock units (“RSUs”) and performance-based restricted stock units (“PSUs”). The Company records stock-based compensation expense for all stock-based compensation granted based on the grant-date fair value. The Company recognizes stock-based compensation expense related to stock-based compensation awards with graded vesting that have a service condition on a straight-line basis over the requisite service period of the entire award.

For RSUs, the amount of stock-based compensation expense is based on the fair value of Cboe Global Markets, Inc. common stock at the date of grant. The fair value is based on a current market-based transaction of the Company’s common stock.

Business Combinations

(o) Business Combinations

The Company records identifiable assets, liabilities and goodwill acquired in a business combination at fair value at the acquisition date. Additionally, transaction-related costs are expensed in the period incurred.

Debt Issuance Costs

(p) Debt Issuance Costs

All costs incurred to issue debt are capitalized as a contra-liability and amortized over the life of the debt using the interest method.

Investments

(q) Investments

The Company generally accounts for investments using the measurement alternative when it owns less than 20% of the outstanding voting stock of a company, there is an absence of readily determinable fair value for the respective investment,

and the Company has an inability to exercise significant influence over the investment based upon the respective ownership interests held. The Company recognizes dividend income when declared.

In general, the equity method of accounting is used when the Company owns 20% to 50% of the outstanding voting stock of a company and when it is able to exercise significant influence over the operating and financial policies of a company. For equity method investments, the Company records the pro rata share of earnings or losses each period and records any dividends received as a reduction in the investment balance. The equity method investment is inclusive of other-than-temporary declines in value, recognized by the investee, who considers a variety of factors such as the earnings capacity of the investment and the fair value of the investment compared to its carrying value. If the estimated fair value of the investment is less than the carrying value and the decline in value is considered to be other than temporary, the excess of the carrying value over the estimated fair value is recognized in the financial statements as an impairment.

The Company’s investment in 7Ridge Investments 3 LP ("7Ridge Fund") represents a nonconsolidated variable interest entity (“VIE”) and is accounted for under the equity method of accounting. The Company has determined that consolidation of the VIE is not required as the Company is not the primary beneficiary of the 7Ridge Fund, as it does not have controlling financial interest and lacks the ability to unilaterally remove the general partner, 7Ridge Investments 3 GP Limited, direct material strategic decisions, or dissolve the entity (i.e. the Company does not have unilateral substantive “kick-out” or “liquidation” rights).

Leases

(r) Leases

The Company determines if an arrangement contains a lease at inception. For arrangements where the Company is the lessee, operating leases are included in operating lease right of use (“ROU”) assets, accrued liabilities, and non-current operating lease liabilities on the balance sheet as of December 31, 2025. The Company does not have any finance leases as of December 31, 2025.

ROU assets and operating lease liabilities are recognized based on the present value of the future lease payments over the lease term at commencement date. ROU assets also include any initial direct costs incurred and any lease payments made at or before the lease commencement date, less lease incentives received. The Company uses its incremental borrowing rate based on the information available at the lease commencement date in determining the lease liabilities, as the rate implicit in the Company’s leases is generally not reasonably determinable. Lease terms may include options to extend or terminate when the Company is reasonably certain that the option will be exercised. Lease expense is recognized on a straight-line basis over the lease term.

The Company also has lease arrangements with lease and non-lease components. The Company elected the practical expedient not to separate non-lease components from lease components for the Company’s leases. The Company elected to apply the short-term lease measurement and recognition exemption in which ROU assets and lease liabilities are not recognized for short-term leases. For short-term operating leases, lease expense is recognized on a straight-line basis over the lease term.

Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheets and the Company recognizes lease expense in facilities costs within the consolidated statements of income for these leases on a straight-line basis over the lease term. Certain leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or more, and some of which include the Company’s option to terminate the leases within one year. When the implicit rate in the Company’s lease is not reasonably determinable, the Company applies an incremental borrowing rate based on the information available at the lease commencement date in determining the present value of lease payments.

Margin Deposits, Clearing Funds, and Interoperability Funds

(s) Margin Deposits, Clearing Funds, and Interoperability Funds

Margin deposits, clearing funds, and interoperability funds in the form of cash contributions by Cboe Clear Europe’s clearing members where title has transferred to Cboe Clear Europe are included as current assets with equal and offsetting current liabilities in the consolidated balance sheets. Changes in margin deposits, clearing funds, and interoperability funds, are presented net in the “restricted cash and cash equivalents and customer bank deposits (included in margin deposits, clearing funds, and interoperability funds)” line in the operating section of the consolidated statement of cash flows. Similarly, cash flows associated with related investment agreements as well as interest income earned on such investments will be classified as cash flows from operating activities in the consolidated statement of cash flows. Both activities are part of Cboe Clear Europe’s principal operating activities and are presented within the operating section of the consolidated statement of cash flows.

When investments are made in accordance with its investment policy, Cboe Clear Europe receives the amount of investment earnings and pays clearing members those earnings minus a set basis point cost of collateral. Related interest income and interest expense are presented gross in the consolidated statement of income in other revenue and other cost of revenue, respectively, as it relates to a core operating activity of Cboe Clear Europe.

Cboe Clear U.S. holds cash on behalf of its customers for the purposes of supporting clearing transactions. Customer cash may be invested in approved investments and any interest or gain received, or loss incurred on invested funds is recorded in the consolidated statements of income. The Company includes customer cash related to the clearing activity on the consolidated balance sheets in margin deposits, clearing funds, and interoperability funds, with a corresponding liability.

Digital Assets Held

(t) Digital Assets Held

The Company determined that digital assets held should be accounted for under ASC 350 – Intangibles – Goodwill and Other, and included on the consolidated balance sheets within intangibles, net. As there is no inherent limit imposed on the useful life of the digital assets, they are classified as indefinite-lived intangible assets and are not subject to amortization. Instead, they are tested for impairment annually or more frequently if events or circumstances change that indicate it is more likely than not that the asset is impaired (i.e., if an impairment indicator exists). The Company will not record any increases in value during the period the digital assets are held; the only gains that are recorded are upon disposition (if the proceeds exceed the carrying value at the time of the disposition).

Recent Accounting Pronouncements - Adopted and Issued, not yet Adopted

Recent Accounting Pronouncements – Adopted

On January 23, 2025, the SEC issued Staff Accounting Bulletin 122 (“SAB 122”), which rescinds the interpretive guidance included in the Staff Accounting Bulletin 121 (“SAB 121”). SAB 121, issued March 31, 2022, provided interpretive guidance from the SEC regarding the accounting for obligations to safeguard digital assets that an entity holds on behalf of customers. For public entities, SAB 122 is effective on a fully retrospective basis in annual periods beginning after December 15, 2024. Additionally, SAB 122 was codified by the FASB in March 2025, under Accounting Standards Update ("ASU") 2025-02, Liabilities (405): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 122. The Company adopted the guidance for the consolidated financial statements issued for the year ended December 31, 2025 and, therefore, no longer discloses safeguarded digital assets within Note 8 (“Goodwill, Intangible Assets, Net, and Digital Assets Held”), Note 13 (“Fair Value Measurement”), and the consolidated balance sheets. The adoption had no material impact on the previously reported condensed consolidated financial statements as the Company liquidated all digital assets held on behalf of customers in the third quarter of 2024.

In December 2023, the FASB issued ASU 2023-08, Intangibles – Goodwill and Other – Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets. This ASU addresses the accounting and disclosure requirements for certain crypto assets and requires entities to subsequently measure certain crypto assets at fair value, with changes in fair value recorded in earnings in each reporting period. In addition, entities are required to provide additional disclosures about the holdings of certain crypto assets. For public entities, the update is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2024. The Company adopted the update for the consolidated financial statements issued for the year ended December 31, 2025, and it does not have a material impact on the consolidated financial statements as the Company does not hold a material amount of crypto assets at December 31, 2025.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This ASU addresses investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. For public entities, the update is effective for fiscal years beginning after December 15, 2024. The Company adopted the update for the consolidated financial statements issued for the year ending December 31, 2025. The Company elected to apply the standard retrospectively to enhance comparability across periods. The required disclosures, as applicable, are included in Note 21 ("Income Taxes"), and reflect the extent of the impact of the adoption of ASU 2023-09 on the consolidated financial statement disclosures.

Recent Accounting Pronouncements – Issued, not yet Adopted

In September 2025, the FASB issued ASU 2025-06 – Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. ASU 2025-06 eliminates the traditional stages for internal use software (preliminary, development, post-implementation) used to determine when to capitalize costs. Instead, capitalization begins when both management has authorized and committed funding for the project and it is probable the project will be completed and the software will be used as intended. The amendments will be effective for all entities for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period. The Company expects to adopt the update for the annual financial statements issued for the year ending December 31, 2027, and is currently reviewing the impact that the adoption of ASU 2025-06 may have on the consolidated financial statement disclosures.

In November 2024, the FASB issued ASU 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This ASU requires disaggregated disclosure of certain income statement expenses for public entities. For public entities, the update is effective for fiscal years beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. The Company expects to adopt the update for the annual financial statements issued for the year ending December 31, 2027, and is currently reviewing the impact that the adoption of ASU 2024-03 may have on the consolidated financial statement disclosures.

On March 6, 2024, the SEC adopted new Climate Disclosure Rules, which require companies to publish information that describes the climate-related risks that are reasonably likely to have a material impact on a company’s business or consolidated financial statements. The final rules would require companies to disclose material climate-related risks, activities to mitigate or adapt to such risks, information about the companies’ board of directors’ oversight of climate-related risks and management’s role in managing climate-related risks, and information on any climate-related targets or goals that are material to the companies’ business, results of operations or financial condition. On March 15, 2024, the U.S. Court of Appeals for the Fifth Circuit granted an administrative stay of the SEC’s final Climate Disclosure Rules, in response to legal challenges unaffiliated with the Company. On February 11, 2025, the acting Chairman of the SEC directed the SEC staff to notify the court of changed circumstances and requested that the Court not schedule the case for argument. On March 27, 2025, the SEC voted to end its defense of its Climate Disclosure Rules. On April 24, 2025, the U.S. Court of Appeals for the Eighth Circuit (the “Court”) granted an order to hold in abeyance the cases regarding the validity of the SEC's final Climate Disclosure Rules. On July 23, 2025, the SEC replied to the Court’s request for a status report. The SEC informed the Court that it does not intend to review or reconsider the Climate Disclosure Rules at this time and requests that the Court decide the case as briefed. On September 12, 2025, the Court issued an order continuing the abeyance until the SEC reconsiders the Climate Disclosure Rules via notice-and-comment or renews its defense of the Climate Disclosure Rules. The Company will continue to monitor updates to the Climate Disclosure Rules and potential impacts on the consolidated financial statements.

There were no other recent applicable material accounting pronouncements that have been issued, but not yet adopted as of December 31, 2025.