Earnings per Share

12 Months Ended

Sep. 30, 2018

The following table sets forth the number of weighted-average shares used to compute basic and diluted EPS:



	Fiscal Year Ended
	September 30, 2018		October 1, 2017		October 2, 2016
	(in thousands, except per share data)
Net income attributable to Tetra Tech	$	136,883	$	117,874	$	83,783
Weighted-average common shares outstanding – basic	55,670		56,911		58,186
Effect of diluted stock options and unvested restricted stock	928		1,002		780
Weighted-average common stock outstanding – diluted	56,598		57,913		58,966

Earnings per share attributable to Tetra Tech:
Basic	$	2.46	$	2.07	$	1.44
Diluted	$	2.42	$	2.04	$	1.42

For fiscal 2018, 0.1 million options were excluded from the calculation of dilutive potential common shares. For fiscal 2017 and 2016, no options were excluded from the calculation of dilutive potential common shares. These options were not included in the computation of dilutive potential common shares because the assumed proceeds per share exceeded the average market price per share for that period. Therefore, their inclusion would have been anti-dilutive.