EARNINGS PER SHARE

9 Months Ended

Sep. 30, 2022

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding during the periods. Diluted earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average common shares and common share equivalents outstanding during the periods. The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using the treasury stock method, which includes consideration of equity awards.

The following table sets forth the details of basic and diluted earnings per share:


	Three Months Ended				Nine Months Ended
	September 30				September 30
(In thousands, except per share data)	2022		2021		2022		2021
Net income attributable to WESCO International, Inc.	$	239,602	$	119,596	$	641,551	$	297,969
Less: Preferred stock dividends	14,352		14,352		43,056		43,056
Net income attributable to common stockholders	$	225,250	$	105,244	$	598,495	$	254,913
Weighted-average common shares outstanding used in computing basic earnings per share	50,815		50,386		50,711		50,252
Common shares issuable upon exercise of dilutive equity awards	1,574		1,677		1,675		1,644
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share	52,389		52,063		52,386		51,896
Earnings per share attributable to common stockholders
Basic	$	4.43	$	2.09	$	11.80	$	5.07
Diluted	$	4.30	$	2.02	$	11.42	$	4.91

The computation of diluted earnings per share attributable to common stockholders excludes stock-based awards that would have had an antidilutive effect on earnings per share. For the three and nine months ended September 30, 2022, there were 88,896 and 88,071 antidilutive shares, respectively