v3.26.1
STOCK-BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2026
STOCK-BASED COMPENSATION  
Schedule of weighted-average assumptions used to estimate the fair value of options granted

Three-Months Ended June 30, 

Six-Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

Dividend yield

0.0

%  

0.0

%

0.0

%

0.0

%

Expected volatility

24.5

%  

26.5

%

25.5

%

26.7

%

Risk-free interest rate

4.2

%  

4.1

%

4.1

%

4.2

%

Expected term

5.9

years

6.1

years

6.1

years

6.2

years

Schedule of activities with respect to its stock option plans

Weighted-

Average

Weighted-

Remaining

Number of

Average

Contractual

Aggregate

Shares

Exercise Price

Term

Intrinsic

Options

  ​ ​ ​

(in thousands)

  ​ ​ ​

Per Share

  ​ ​ ​

(in years)

  ​ ​ ​

Value

Outstanding at January 1, 2026

 

22,161

$

42.80

 

5.8

$

750,594

Granted 01/01/26 - 03/31/26

 

894

$

77.11

Granted 04/01/26 - 06/30/26

 

14

$

89.10

Exercised

 

(2,187)

$

36.06

Cancelled or forfeited

 

(112)

$

52.33

Outstanding at June 30, 2026

 

20,770

$

44.97

 

5.7

$

1,062,459

Vested and expected to vest in the future at June 30, 2026

20,158

$

44.60

5.6

$

1,038,580

Exercisable at June 30, 2026

12,144

$

37.70

4.3

$

709,422

Schedule of activities with respect to non-vested restricted stock units and performance share units

Number of Shares

Weighted-Average Grant-Date

  ​ ​ ​

(in thousands)

  ​ ​ ​

Fair Value

Non-vested at January 1, 2026

2,040

$

53.15

Granted 01/01/26 - 03/31/261

986

$

68.99

Granted 04/01/26 - 06/30/26

27

$

86.94

Vested

(985)

$

51.10

Forfeited/cancelled

(8)

$

59.92

Non-vested at June 30, 2026

2,060

$

62.13

1The grant activity for performance share units is recorded based on the target performance level earning 100% of target performance share units. The actual number of performance share units earned could range from 0% to 200% of target depending on the achievement of pre-established performance goals.