4.	Earnings Per Share

The Company considers its unvested restricted stock awards, which contain non-forfeitable rights to dividends, participating securities, and includes such participating securities in its computation of earnings per share pursuant to the two-class method. Basic earnings per share for the two classes of stock (common stock and unvested restricted stock) is calculated by dividing net income by the weighted average number of shares of common stock and unvested restricted stock outstanding during the reporting period. Diluted earnings per share is calculated using the weighted average number of shares of common stock plus the potentially dilutive effect of common equivalent shares outstanding determined under both the two class method and the treasury stock method.

The following table presents computations of basic and diluted earnings per share under the two-class method:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Numerator:
Net income attributable to Cinemark Holdings, Inc.	$	82,135		$	51,239		$	144,156		$	130,967
Earnings allocated to participating share-based awards ⁽¹⁾		(465	)		(263	)		(817	)		(620	)
Net income attributable to common stockholders	$	81,670		$	50,976		$	143,339		$	130,347

Denominator (shares in thousands):
Basic weighted average common stock outstanding		116,091			115,785			115,988			115,707
Common equivalent shares for restricted stock units		177			287			250			313
Diluted		116,268			116,072			116,238			116,020

Basic earnings per share attributable to common stockholders	$	0.70		$	0.44		$	1.23		$	1.12
Diluted earnings per share attributable to common stockholders	$	0.70		$	0.44		$	1.23		$	1.12

(1)

For the three months ended June 30, 2018 and 2017, a weighted average of approximately 676 and 605 shares of unvested restricted stock, respectively, were considered participating securities. For the six months ended June 30, 2018 and 2017, a weighted average of approximately 663 and 552 shares of restricted stock, respectively, were considered participating securities.