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EARNINGS PER SHARE CALCULATION
 12 Months Ended
Nov. 01, 2025
Earnings Per Share [Abstract]  
EARNINGS PER SHARE CALCULATION EARNINGS PER SHARE CALCULATION
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 unless the impact of the item is 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):
 Year Ended
 November 1, 2025November 2, 2024October 28, 2023
Net income$123,338 $83,956 $254,827 
Basic weighted average shares outstanding142,221 144,715 148,971 
Effect of dilutive potential common shares3,027 1,249 409 
Diluted weighted average shares outstanding145,248 145,964 149,380 
Basic EPS$0.87 $0.58 $1.71 
Diluted EPS$0.85 $0.58 $1.71 
Anti-dilutive stock unit awards excluded1,0041,0572,675