Net Income (Loss) per Share

9 Months Ended

Sep. 30, 2015

5. Net Income (Loss) per Share

The following table sets forth the computation of basic and diluted net income (loss) per share for the three and nine months ended September 30 (in thousands, except per share amounts):


	Three Months Ended September 30,					Nine Months Ended September 30,
	2015		2014			2015		2014
Numerator:
Net income (loss) attributable to Vicor Corporation	$	2,503	$	(3,674	)	$	6,679	$	(13,887	)

Denominator:
Denominator for basic net income (loss) per share-weighted average shares (1)		38,786		38,552			38,742		38,545
Effect of dilutive securities: Employee stock options (2)		300		—			434		—

Denominator for diluted net income (loss) per share – adjusted weighted-average shares and assumed conversions		39,086		38,552			39,176		38,545

Basic net income (loss) per share	$	0.06	$	(0.10	)	$	0.17	$	(0.36	)

Diluted net income (loss) per share	$	0.06	$	(0.10	)	$	0.17	$	(0.36	)

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

(2)

Options to purchase 533,689 and 141,971 shares of Common Stock for the three and nine months ended September 30, 2015, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive. Options to purchase 2,001,175 shares of Common Stock for the three and nine months ended September 30, 2014 were not included in the calculation of net loss per share as the effect would have been antidilutive.