Net Income (Loss) per Share (Tables)

9 Months Ended

Sep. 30, 2018

Computation Of Basic And Diluted Net Income (Loss) Per Share

The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share amounts):


	Three Months Ended September 30,					Nine Months Ended September 30,
	2018		2017			2018		2017
Numerator:
Net income (loss) attributable to Vicor Corporation	$	13,012	$	(11	)	$	24,815	$	(1,444	)

Denominator:
Denominator for basic net income (loss) per share-weighted average shares (1)		40,120		39,288			39,769		39,177
Effect of dilutive securities:
Employee stock options (2)		1,004		—			876		—

Denominator for diluted net income (loss) per share — adjusted weighted-average shares and assumed conversions		41,124		39,288			40,645		39,177

Basic net income (loss) per share	$	0.32	$	(0.00	)	$	0.62	$	(0.04	)

Diluted net income (loss) per share	$	0.32	$	(0.00	)	$	0.61	$	(0.04	)

(1)	Denominator represents weighted average number of shares of Common Stock and Class B Common Stock outstanding.

(2)

Options to purchase 54,818 and 47,573 shares of Common Stock for the three and nine months ended September 30, 2018, respectively, and 1,452,808 shares of Common Stock for the three and nine months ended September 30, 2017, respectively, were not included in the calculation of net income (loss) per share as the effect would have been antidilutive.