REGULATORY CAPITAL (Tables)

12 Months Ended

Dec. 31, 2025

Broker-Dealer [Abstract]

Schedule of actual and minimum regulatory capital requirements of the subsidiary

The following table presents the Company’s subsidiaries with regulatory capital requirements discussed above, as well as the actual and minimum regulatory capital requirements of the subsidiary as of December 31, 2025 (in millions):

Subsidiary	Regulatory Authority	Actual		Minimum Requirement
Cboe Trading	FINRA/SEC	$	16.9	$	0.8
BIDS Trading	FINRA/SEC	11.7		0.2
Cboe Fixed Income	FINRA/SEC	2.4		0.1
Cboe Europe	FCA	71.2		36.6
Cboe Chi-X Europe	FCA	0.1		0.1
Cboe NL	Dutch Authority for Financial Markets	21.1		10.3
Cboe Clear Europe	DNB	128.1		76.0
CFE	CFTC	104.5		40.3
Cboe SEF	CFTC	10.8		2.5
Cboe Digital Exchange	CFTC	21.6		—
Cboe Clear U.S.	CFTC	35.1		12.1
Cboe Australia	ASIC	17.9		5.9
Cboe Japan	JFSA	6.8		4.6