Annual report pursuant to Section 13 and 15(d)

NET INCOME (LOSS) PER SHARE

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NET INCOME (LOSS) PER SHARE
12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
NET INCOME (LOSS) PER SHARE
NET INCOME (LOSS) PER SHARE
Basic net income (loss) per common share is computed by dividing the net income (loss) relevant to the common stockholders by the weighted-average number of shares outstanding during the year. Diluted net income (loss) per common share uses the same net income (loss) divided by the sum of the weighted-average number of shares of common stock outstanding during the period, plus dilutive effects of options, performance and restricted stocks units outstanding during the period calculated using the treasury method and the potential dilutive effects of preferred stocks (if any) calculated using the if-converted method. The table below shows the calculations for years ended December 31, 2018, 2017 and 2016.
(In thousands, except for per share data)
2018
 
2017
 
2016
Numerator (both basic and diluted)
 
 
 
 
 
Net income (loss) relevant to common stockholders
$
173,862

 
$
12,613

 
$
(53,147
)
Denominator
 
 
 
 
 
Denominator for basic income (loss) per share
83,460

 
76,371

 
44,787

Dilutive effect of stock options
3,129

 
2,903

 

Dilutive effect of performance stock units
277

 
59

 

Dilutive effect of non-vested restricted stock units
180

 
250

 

Denominator for diluted income (loss) per share
87,046

 
79,583

 
44,787

Basic net income (loss) per common share
$
2.08

 
$
0.17

 
$
(1.19
)
Diluted net income (loss) per common share
$
2.00

 
$
0.16

 
$
(1.19
)

As shown in the table below, the following non-vested restricted stock units, preferred stock, performance stock units, and stock options have not been included in the calculation of diluted income (loss) per share for years ended December 31, 2018, 2017 and 2016 as they would be anti-dilutive to the calculation above.
(Count in thousands)
2018
 
2017
 
2016
Stock options

 

 
4,646

Preferred stock

 

 
17,000

Performance stock units

 

 

Non-vested restricted stock units

 

 
372

 

 

 
22,018