SELECTED QUARTERLY FINANCIAL DATA

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

SELECTED QUARTERLY FINANCIAL DATA (unaudited)

The following table sets forth selected quarterly financial data for the years ended December 31, 2016 and 2015:



	First Quarter		Second Quarter		Third Quarter			Fourth Quarter
2016
Net Sales	$	1,775,961	$	1,911,582	$	1,855,212		$	1,793,262
Cost of goods sold (excluding depreciation and amortization)	1,420,793		1,532,113		1,490,173			1,444,735
Income from operations	69,508		87,987		92,555			82,009
Income (loss) before income taxes	50,679		68,535		(52,170		)	64,507
Net income (loss)	34,534		49,852		(31,021		)	47,755
Net income (loss) attributable to WESCO International	36,053		49,798		(31,611		)	47,348
Basic earnings (loss) per share attributable to WESCO International, Inc.^{(A) (C)}	0.85		1.18		(0.73		)	0.97
Diluted earnings (loss) per share attributable to WESCO International, Inc.^{(B) (C)}	0.77		1.02		(0.73		)	0.96

2015
Net Sales	$	1,816,330	$	1,916,718	$	1,923,899		$	1,861,540
Cost of goods sold (excluding depreciation and amortization)	1,448,639		1,535,084		1,543,113			1,497,990
Income from operations	87,185		90,253		106,348			89,956
Income before income taxes	66,291		71,640		85,931			80,048
Net income	46,793		50,639		62,384			48,557
Net income attributable to WESCO International	47,031		51,741		63,503			48,412
Basic earnings per share attributable to WESCO International, Inc.^(A)	1.06		1.18		1.47			1.15
Diluted earnings per share attributable to WESCO International, Inc.^(B)	0.90		1.00		1.28			1.03


^(A)	Earnings per share (EPS) in each quarter is computed using the weighted-average number of shares outstanding during that quarter while EPS for the full year is computed by using the weighted-average number of shares outstanding during the year. Thus, the sum of the four quarters’ EPS may not equal the full-year EPS.


^(B)	Diluted EPS in each quarter is computed using the weighted-average number of shares outstanding and common share equivalents during that quarter while Diluted EPS for the full year is computed by using the weighted-average number of shares outstanding and common share equivalents during the year. Thus, the sum of the four quarters’ Diluted EPS may not equal the full-year Diluted EPS.

^(C)

On September 15, 2016, the Company completed the redemption of its 2029 Debentures. The redemption resulted in a non-cash charge of $123.9 million, which resulted in a net loss attributable to WESCO International, Inc. for the three months ended September 30, 2016. Accordingly, dilutive shares were not included in the calculation of diluted loss per share for the three months ended September 30, 2016 because their effect was antidilutive.