Weighted-Average Shares

6 Months Ended

Jul. 01, 2018

Weighted-average shares were calculated as follows (in thousands):



	Three-months Ended		Six-months Ended
	July 1, 2018	July 2, 2017	July 1, 2018	July 2, 2017
Basic weighted-average common shares outstanding	172,370	173,278	172,825	172,960
Effect of dilutive stock options	4,779	5,950	5,593	5,944
Weighted-average common and common-equivalent shares outstanding	177,149	179,228	178,418	178,904

Stock options to purchase 2,959,000 and 2,032,000 shares of common stock, on a weighted-average basis, were outstanding during the three-month and six-month periods ended July 1, 2018, respectively, and 3,792,000 and 2,715,000 for the same periods in 2017, but were not included in the calculation of dilutive net income per share because they were anti-dilutive.