Earnings Per Share

12 Months Ended

Oct. 02, 2011

Earnings Per Share

Earnings Per Share

12.   Earnings Per Share

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

		Fiscal Year Ended
		October 2, 2011		October 3, 2010		September 27, 2009
		(in thousands, except per share data)
Net income attributable to Tetra Tech		$	90,039	$	76,819	$	87,028
	Weighted-average common shares outstanding – basic		62,053		61,430		60,135
	Effect of diluted stock options and unvested restricted stock		722		657		859
	Weighted-average common stock outstanding – diluted		62,775		62,087		60,994
Earnings per share attributable to Tetra Tech:
	Basic	$	1.45	$	1.25	$	1.45
	Diluted	$	1.43	$	1.24	$	1.43

        For fiscal 2011, 2010 and 2009, 2.6 million, 3.1 million and 1.3 million options were excluded from the calculation of dilutive potential common shares, respectively. 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. At October 2, 2011, 174,175 shares of restricted stock issued to employees were unvested, and therefore were excluded from the calculation of basic EPS for the fiscal year ended October 2, 2011.