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.


	Three Months Ended				Six Months Ended
	June 30				June 30
(In millions, except per share data)	2025		2024		2025		2024
Net income attributable to WESCO International, Inc.	$	174.5	$	232.1	$	292.9	$	347.9
Plus: Gain on redemption of Series A Preferred Stock	27.6		—		27.6		—
Less: Preferred stock dividends	12.9		14.4		27.3		28.7
Net income attributable to common stockholders	$	189.2	$	217.7	$	293.2	$	319.2
Weighted-average common shares outstanding used in computing basic earnings per share	48.8		50.2		48.8		50.5
Common shares issuable upon exercise of dilutive equity awards	0.6		0.7		0.7		0.8
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share	49.4		50.9		49.5		51.3
Earnings per share attributable to common stockholders
Basic	$	3.88	$	4.34	$	6.01	$	6.32
Diluted	$	3.83	$	4.28	$	5.92	$	6.22

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 six months ended June 30, 2025, there were approximately 0.5 million antidilutive shares. For the three and six months ended June 30, 2024, there were approximately 0.2 million antidilutive shares.