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STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2023
Stock-based Compensation  
Summary of restricted stock activity

Weighted

 

Number of

average grant 

 

    

shares

    

date fair value

 

Nonvested stock at January 1, 2021

342,082

$

108.40

Granted

298,084

92.32

Vested

(166,598)

106.13

Forfeited

(30,249)

97.01

Nonvested stock at December 31, 2021

443,319

$

99.22

Granted

369,037

119.97

Vested

(201,457)

99.87

Forfeited

(54,837)

106.07

Nonvested stock at December 31, 2022

 

556,062

$

112.07

Granted

 

401,685

132.58

Vested

 

(237,315)

108.25

Forfeited

 

(82,251)

121.02

Nonvested stock at December 31, 2023

 

638,181

$

125.25

Summary of performance-based restricted stock units activity

Weighted

Number of

average grant 

    

Shares

    

date fair value

Nonvested stock at January 1, 2021

122,666

$

115.18

Granted

71,302

98.32

Vested

(29,468)

111.45

Forfeited

(12,090)

110.20

Nonvested stock at December 31, 2021

152,410

$

108.41

Granted

64,668

141.41

Vested

(16,834)

96.00

Forfeited

(33,542)

95.40

Nonvested stock at December 31, 2022

 

166,702

$

125.08

Granted

 

87,146

144.35

Vested

 

(55,399)

130.05

Forfeited

 

(63,965)

141.49

Nonvested stock at December 31, 2023

 

134,484

$

127.72

Cboe Digital Restricted Common Units  
Stock-based Compensation  
Summary of stock option/warrant activity

The following table summarizes the option activity during the years ended December 31, 2023 and 2022 (in millions, except number of shares and contractual term):

Weighted

Weighted

average

Number of

average

Aggregate

remaining

shares

exercise price

intrinsic value

contractual term

Outstanding at January 1, 2022

$

$

Granted

185

0.3

6 years

Vested

Outstanding at December 31, 2022

185

$

0.3

$

6 years

Granted

Vested

Outstanding at December 31, 2023

185

$

0.3

$

5 years

Cboe Digital Warrant Units  
Stock-based Compensation  
Summary of stock option/warrant activity

Weighted

Number of

average

shares

exercise price

Outstanding at January 1, 2022

$

Granted

80

0.2

Vested

Outstanding at December 31, 2022

80

$

0.2

Granted

Vested, but not exercised

40

0.2

Outstanding and exercisable at December 31, 2023

40

0.2

Outstanding at December 31, 2023

80

$

0.2