Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share

Summary of basic and diluted earnings per share

	Three Months Ended March 31,
	2019		2018
Numerator:
Net income attributable to Cactus Inc. (1)	$	26,807	$	3,753
Denominator:
Weighted average Class A shares outstanding—basic		38,719		26,450
Effect of dilutive shares (2)		36,527		198
Weighted average Class A shares outstanding—diluted (2)		75,246		26,648
Earnings per Class A share—basic	$	0.69	$	0.14
Earnings per Class A share—diluted (1) (2)	$	0.59	$	0.14

(1) Under the if-converted method, the numerator is adjusted in the calculation of diluted earnings per share to include $17.5 million of additional income attributable to non-controlling interest adjusted for a corporate effective tax rate of 24%.

(2) Diluted earnings per share for the three months ended March 31, 2019 includes 36,292 shares of Class B common stock assuming conversion, plus the dilutive effect of 235 shares of restricted stock unit awards. Diluted earnings per share for the three months ended March 31, 2018 excludes 48,440 shares of Class B common stock as the effect would be anti-dilutive.