STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2023

Stock-based Compensation

Summary of restricted stock activity

		Weighted
	Number of	average grant
	Shares	date fair value
Nonvested stock at December 31, 2022	556,062	$	112.07
Granted	333,457		126.12
Vested	(225,147)		108.07
Forfeited	(7,496)		117.66
Nonvested stock at June 30, 2023	656,876	$	120.51

Summary of performance-based restricted stock units

		Weighted
	Number of	average grant
	Shares	date fair value
Nonvested stock at December 31, 2022	166,702	$	125.08
Granted	84,686		142.09
Vested	(55,399)		130.05
Forfeited	(3,911)		154.00
Nonvested stock at June 30, 2023	192,078	$	130.56

Cboe Digital Restricted Common Units

Stock-based Compensation

Summary of stock option/warrant activity

		Weighted				Weighted
	Number of	average exercise		Aggregate		average remaining
	Units	price		intrinsic value		contractual term
Nonvested units at December 31, 2022	185	$	0.3	$	—	6 years
Granted	—		—		—
Vested	—		—		—
Outstanding and exercisable June 30, 2023	185	$	0.3	$	—	5 years

Cboe Digital Warrants

Stock-based Compensation

Summary of stock option/warrant activity

The following table summarizes the Warrant activity during the six months ended June 30, 2023 (in millions, except number of units):

		Weighted
	Number of	average exercise
	Units	price
Nonvested units at December 31, 2022	80	$	0.2
Granted	—		—
Vested	—		—
Outstanding and exercisable June 30, 2023	80	$	0.2