Earnings Per Share

3 Months Ended

Mar. 31, 2019

Note 7—Earnings Per Share

Basic earnings per share (“EPS”) is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of common shares outstanding. Diluted EPS is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of common shares and dilutive common shares outstanding, which relates to stock options. A reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding for the three months ended March 31, 2019 and 2018 is as follows:


	Three Months Ended March 31,
(dollars and shares in millions, except per share data)	2019		2018
Net income attributable to Amphenol Corporation shareholders	$	267.5	$	265.6
Basic weighted average common shares outstanding		298.1		303.7
Effect of dilutive stock options		10.5		12.3
Diluted weighted average common shares outstanding		308.6		316.0
Earnings per share attributable to Amphenol Corporation shareholders:
Basic	$	0.90	$	0.87
Diluted	$	0.87	$	0.84

Excluded from the computations above were anti-dilutive common shares of 6.3 million and nil for the three months ended March 31, 2019 and 2018, respectively.