EARNINGS PER SHARE CALCULATION

3 Months Ended

Jan. 29, 2022

Basic net income per common share (“Basic EPS”) is computed using the weighted average number of common shares outstanding. Diluted net income per potential common share (“Diluted EPS”) is computed using the weighted average number of the following, in each case, to the extent that the effect is not anti-dilutive: (i) common shares outstanding; (ii) shares issuable upon vesting of stock unit awards; and (iii) shares issuable under Ciena’s employee stock purchase plan and upon exercise of outstanding stock options, using the treasury stock method.

The following table presents the calculation of basic and diluted EPS (in thousands, except per share amounts):


	Quarter Ended
	January 29,		January 30,
	2022		2021
Net income	$	45,823	$	55,348
Basic weighted average shares outstanding	154,151		155,174
Effect of dilutive potential common shares	1,656		1,409
Diluted weighted average shares	155,807		156,583
Basic EPS	$	0.30	$	0.36
Diluted EPS	$	0.29	$	0.35
Antidilutive employee share-based awards, excluded	761		135