Net Income (Loss) per Share

The following table presents the calculation of basic and diluted net income (loss) per share (in millions, except per-share amounts):



	Three Months Ended				Nine Months Ended
	April 28, 2018		April 29, 2017		April 28, 2018			April 29, 2017
Net income (loss)	$	2,691	$	2,515	$	(3,693	)	$	7,185
Weighted-average shares—basic	4,791		5,005		4,892			5,015
Effect of dilutive potential common shares	53		40		—			41
Weighted-average shares—diluted	4,844		5,045		4,892			5,056
Net income (loss) per share—basic	$	0.56	$	0.50	$	(0.76	)	$	1.43
Net income (loss) per share—diluted	$	0.56	$	0.50	$	(0.76	)	$	1.42

Employee equity share options, unvested shares, and similar equity instruments are treated as potential common shares outstanding in computing diluted earnings per share. Diluted shares outstanding include the dilutive effect of in-the-money options, unvested restricted stock, and restricted stock units. The dilutive effect of such equity awards is calculated based on the average share price for each fiscal period using the treasury stock method. Under the treasury stock method, the amount the employee must pay for exercising stock options and the amount of compensation cost for future service that has not yet recognized would be recorded in additional paid-in capital when the award becomes deductible are collectively assumed to be used to repurchase shares.

The Company excluded antidilutive employee-share based awards of 5 million and 6 million for the three months ended April 28, 2018 and April 29, 2017, respectively. The Company excluded antidilutive employee-share based awards of 118 million for the nine months ended April 29, 2017. For the nine months ended April 28, 2018, the Company excluded the impact of potentially dilutive common shares from the calculation of net income (loss) per share as the inclusion would have an antidilutive effect.