Earnings Per Common Share

9 Months Ended

Sep. 30, 2019

The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per common share computations for the nine and three months ended September 30, 2019 and 2018 (in millions, except per share amounts):



	Nine Months Ended September 30,				Three Months Ended September 30,
	2019		2018		2019		2018
Basic:
Net income attributable to Intercontinental Exchange, Inc.	$	1,485	$	1,377	$	529	$	458
Weighted average common shares outstanding	563		577		559		572
Basic earnings per common share	$	2.64	$	2.39	$	0.95	$	0.80
Diluted:
Weighted average common shares outstanding	563		577		559		572
Effect of dilutive securities - stock options and restricted shares	3		4		4		4
Diluted weighted average common shares outstanding	566		581		563		576
Diluted earnings per common share	$	2.62	$	2.37	$	0.94	$	0.79

Basic earnings per common share is calculated using the weighted average common shares outstanding during the period. Common equivalent shares from stock options and restricted stock awards, using the treasury stock method, are included in the diluted per share calculations unless the effect of their inclusion would be antidilutive. During the nine months ended

September 30, 2019 and 2018, 437,000 and 451,000 outstanding stock options, respectively, were not included in the computation of diluted earnings per common share, because to do so would have had an antidilutive effect. Certain figures in the table above may not recalculate due to rounding.