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EARNINGS PER SHARE CALCULATION | 9 Months Ended
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Jul. 30, 2022
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, 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 |  | Nine Months Ended
| July 30 |  | July 31 |  | July 30 |  | July 31
| 2022 |  | 2021 |  | 2022 |  | 2021
Net income | $ | 10,512 |  |  | $ | 238,232 |  |  | $ | 95,257 |  |  | $ | 396,697 |
Basic weighted average shares outstanding | 149,862 |  |  | 155,271 |  |  | 152,083 |  |  | 155,277 |
Effect of dilutive potential common shares | 601 |  |  | 1,473 |  |  | 1,126 |  |  | 1,465 |
Diluted weighted average shares | 150,463 |  |  | 156,744 |  |  | 153,209 |  |  | 156,742 |
Basic EPS | $ | 0.07 |  |  | $ | 1.53 |  |  | $ | 0.63 |  |  | $ | 2.55 |
Diluted EPS | $ | 0.07 |  |  | $ | 1.52 |  |  | $ | 0.62 |  |  | $ | 2.53 |
Antidilutive employee share-based awards, excluded | 1,640 |  |  | 131 |  |  | 1,264 |  |  | 99 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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