Pending Acquisition	9 Months Ended
Sep. 30, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Pending Acquisition	3. Pending Acquisition MarketAxess Holdings Inc. On July 29, 2026, we entered into a definitive agreement to acquire MarketAxess Holdings Inc., or MarketAxess, a leading operator of electronic trading platforms for global institutional fixed income markets. The transaction implies an equity value of approximately $6.0 billion, or $167 per share, with purchase consideration consisting entirely of cash. For further information regarding the financing agreements entered into in connection with this acquisition, see Note 8. On October 21, 2026, the Department of Justice and the Federal Trade Commission granted early termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, or the HSR Act, effective as of October 21, 2026, satisfying the HSR Act condition in ICE’s acquisition of MarketAxess. The merger remains subject to the remaining customary closing conditions and approvals and the receipt of other required regulatory approvals. Based on the HSR Act approval, ICE now expects the merger to close in the first quarter of 2027.

Pending Acquisition

9 Months Ended

Sep. 30, 2026

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Pending Acquisition

3. Pending Acquisition

MarketAxess Holdings Inc.

On July 29, 2026, we entered into a definitive agreement to acquire MarketAxess Holdings Inc., or MarketAxess, a leading operator of electronic trading platforms for global institutional fixed income markets. The transaction implies an equity value of approximately $6.0 billion, or $167 per share, with purchase consideration consisting entirely of cash. For further information regarding the financing agreements entered into in connection with this acquisition, see Note 8.

On October 21, 2026, the Department of Justice and the Federal Trade Commission granted early termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, or the HSR Act, effective as of October 21, 2026, satisfying the HSR Act condition in ICE’s acquisition of MarketAxess. The merger remains subject to the remaining customary closing conditions and approvals and the receipt of other required regulatory approvals. Based on the HSR Act approval, ICE now expects the merger to close in the first quarter of 2027.