Earnings per share

9 Months Ended

Oct. 30, 2015

2.Earnings per share

Earnings per share is computed as follows (in thousands, except per share data):

	13 Weeks Ended October 30, 2015					13 Weeks Ended October 31, 2014
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Basic earnings per share	$	253,321	292,037	$	0.87	$	236,316	303,080	$	0.78
Effect of dilutive share-based awards			867					1,028

Diluted earnings per share	$	253,321	292,904	$	0.86	$	236,316	304,108	$	0.78

	39 Weeks Ended October 30, 2015					39 Weeks Ended October 31, 2014
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Basic earnings per share	$	788,905	296,307	$	2.66	$	709,974	305,142	$	2.33
Effect of dilutive share-based awards			867					955
Diluted earnings per share	$	788,905	297,174	$	2.65	$	709,974	306,097	$	2.32

Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is determined based on the dilutive effect of share-based awards using the treasury stock method.

Share-based awards that were outstanding at the end of the respective periods, but were not included in the computation of diluted earnings per share because the effect of exercising such awards would be antidilutive, were 1.6 million and 1.0 million in the 2015 and 2014 13-week periods, respectively, and were 1.2 million and 1.4 million in the 2015 and 2014 39-week periods, respectively.