NET INCOME (LOSS) PER SHARE

The Company calculates net income (loss) per share by dividing earnings allocated to common stockholders by the weighted average number of common shares outstanding for the period.

Diluted weighted average shares is computed using basic weighted average shares plus any potentially dilutive securities outstanding during the period using the treasury-stock-type method and the if-converted method, except when their effect is anti-dilutive. Potentially dilutive securities include stock options, restricted stock units, the Upfront Warrants held by Total, warrants associated with the CSO2015 and CSO2014, and the outstanding senior convertible debentures.

The following table presents the calculation of basic and diluted net income (loss) per share:



	Three Months Ended
(In thousands, except per share amounts)	March 29, 2015			March 30, 2014
Basic net income per share:
Numerator
Net income (loss) attributable to stockholders	$	(9,581	)	$	65,044
Denominator
Basic weighted-average common shares	132,033			122,196

Basic net income (loss) per share	$	(0.07	)	$	0.53

Diluted net income per share:
Numerator
Net income (loss) attributable to stockholders	(9,581		)	65,044
Add: Interest expense incurred on the 0.75% debentures due 2018, net of tax	—			450
Add: Interest expense incurred on the 4.75% debentures due 2014, net of tax	—			2,185
Net income (loss) available to common stockholders	(9,581		)	67,679
Denominator
Basic weighted-average common shares	132,033			122,196
Effect of dilutive securities:
Stock options	—			108
Restricted stock units	—			6,202
Upfront Warrants (held by Total)	—			7,227
Warrants (under the CSO2015)	—			2,915
Warrants (under the CSO2014)	—			1,048
0.75% debentures due 2018	—			12,026
4.75% debentures due 2014	—			8,712
Dilutive weighted-average common shares	132,033			160,434

Dilutive net income (loss) per share	$	(0.07	)	$	0.42

The Upfront Warrants allow Total to acquire up to 9,531,677 shares of the Company's common stock at an exercise price of $7.8685. Holders of the Warrants under the CSO2015 and CSO2014, may acquire up to 11.1 million and 8.7 million shares, respectively, of the Company's common stock at an exercise price of $24.00 and $26.40, respectively. If the market price per share of the Company's common stock for the period exceeds the established strike price of the respective warrants, they will have a dilutive effect on its diluted net income per share using the treasury-stock method. In February 2014, the CSO2014 was settled, leaving none of the related Warrants outstanding (see Note 10).

Holders of the Company's 0.875% debentures due 2021, 0.75% debentures due 2018, and the 4.75% debentures due 2014 may convert the debentures into shares of the Company's common stock, at the applicable conversion rate, at any time on or prior to maturity. These debentures are included in the calculation of diluted net income per share if they were outstanding during the period presented and if their inclusion is dilutive under the if-converted method. In April 2014, the 4.75% debentures matured and were fully settled in both cash and shares of the Company's common stock during the quarter (see Note 10).

Holders of the Company's 4.50% debentures due 2015 could, under certain circumstances at their option and before maturity, convert the debentures into cash, and not into shares of the Company's common stock (or any other securities). Therefore, the 4.50% debentures due 2015 are excluded from the net income per share calculation. In March 2015, the 4.50% debentures due 2015 matured and were settled in cash (see Note 10).

The following is a summary of outstanding anti-dilutive potential common stock that was excluded from income (loss) per diluted share in the following periods:



	Three Months Ended
(In thousands)	March 29, 2015 ¹	March 30, 2014
Stock options	190	159
Restricted stock units	3,616	464
Upfront Warrants (held by Total)	9,532	—
Warrants (under the CSO2015)	11,096	—
0.75% debentures due 2018	12,026	—
0.875% debentures due 2021	8,203	n/a

¹As a result of the net loss per share for the three months ended March 29, 2015, the inclusion of all potentially dilutive stock options, restricted stock units, and common shares under noted warrants and convertible debt would be anti-dilutive. Therefore, those stock options, restricted stock units and shares were excluded from the computation of the weighted-average shares for diluted net loss per share for such period.