Keithley Instruments (KEI) 10-Q 2001 Q3 Quarterly report

Exhibit 11

11. Statement re computation of per share earnings

	Third Quarter Ended				Nine Months Ended
	June 30,				June 30,
	2001		2000		2001		2000
Net income in thousands	$	4,086	$	5,783	$	16,099	$	14,119
Weighted average shares outstanding		15,784,010		14,834,479		15,723,915		14,487,438
Assumed exercise of stock options, weighted average of incremental shares		640,824		1,290,676		756,821		1,405,326
Assumed purchase of stock under stock purchase plan, weighted average		23,638		88,498		51,045		70,602
Diluted shares – adjusted weighted-average shares and assumed conversions		16,448,472		16,213,650		16,531,781		15,963,366
Basic earning per share	$	0.26	$	0.39	$	1.02	$	0.97
Diluted earnings per share	$	0.25	$	0.36	$	0.97	$	0.88

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