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SHARE-BASED COMPENSATION EXPENSE (Tables)

12 Months Ended

Nov. 02, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Assumptions for Awards Granted

Assumptions for awards granted during fiscal 2024, fiscal 2023 and fiscal 2022 included the following:

			Year Ended
			November 2, 2024						October 28, 2023						October 29, 2022
Expected volatility of Ciena common stock, which is a weighted average of implied volatility and historical volatility			36.00%						40.37%						38.27%
Historical volatility of Ciena common stock			36.74%						43.11%						42.17%
Volatility of S&P Networking Index(1)			44.94%						30.93%						27.22%
Correlation coefficient			0.3665						0.7781						0.7049
Expected life in years			2.89						2.89						2.89
Risk-free interest rate			4.41%						3.95%						0.94%
Expected dividend yield			0.0%						0.0%						0.0%

(1) For fiscal 2023 and fiscal 2022, reflects the volatility of the S&P Networking Index as a whole. For fiscal 2024, reflects the volatility of the median company within the S&P Networking Index as of the date of the award, measured as of the last day of fiscal 2023.

Schedule of Restricted Stock Unit Activity

The following table is a summary of Ciena’s restricted stock unit activity for the period indicated, with the aggregate fair value of the balance outstanding at the end of each period, based on Ciena’s closing stock price on the last trading day of the relevant period (shares and aggregate fair value in thousands):

			Restricted Stock Units Outstanding						Weighted Average Grant Date Fair Value Per Share						Aggregate Fair Value
Balance at October 28, 2023			4,922						$	53.42					$	201,916
Granted			4,080
Vested			(2,382)
Canceled or forfeited			(508)
Balance at November 2, 2024			6,112						$	48.41					$	390,995

Schedule of Share-based Compensation Expense

The following table summarizes share-based compensation expense for the periods indicated (in thousands):

			Year Ended
			November 2, 2024						October 28, 2023						October 29, 2022
Products			$	6,474					$	4,518					$	3,867
Services			12,743						10,470						7,533
Share-based compensation expense included in cost of goods sold			19,217						14,988						11,400
Research and development			54,129						42,331						31,879
Sales and marketing			42,954						35,136						31,280
General and administrative			40,053						37,587						30,435
Share-based compensation expense included in operating expense			137,136						115,054						93,594
Share-based compensation expense capitalized in inventory, net			51						413						137
Total share-based compensation			$	156,404					$	130,455					$	105,131

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Tabular disclosure of share-based payment arrangement.

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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