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SEGMENTS AND ENTITY-WIDE DISCLOSURES (Tables)

6 Months Ended

May 03, 2025

Segment Reporting [Abstract]

Schedule of Segment Profit (Loss) and the Reconciliation to Consolidated Net Income (Loss)

The table below sets forth Ciena’s segment profit (loss) and the reconciliation to net income (loss) for the periods presented (in thousands):

			Quarter Ended												Six Months Ended
			May 3,						April 27,						May 3,						April 27,
			2025						2024						2025						2024
Segment profit (loss):
Networking Platforms			$	133,712					$	96,566					$	300,791					$	280,341
Platform Software and Services			50,423						54,037						113,548						112,041
Blue Planet Automation Software and Services			4,291						(7,763)						8,867						(14,832)
Global Services			49,544						50,441						93,922						95,424
Total segment profit			237,970						193,281						517,128						472,974
Less: Non-performance operating expenses
Selling and marketing			139,683						124,071						276,187						252,229
General and administrative			56,952						49,573						110,854						104,256
Significant asset impairments and restructuring costs			1,948						15,655						3,492						20,626
Amortization of intangible assets			6,545						7,947						13,090						15,199
Add: Other non-performance financial items
Interest and other income, net			7,871						11,797						19,449						22,447
Interest expense			(21,697)						(23,861)						(44,615)						(47,637)
Loss on extinguishment and modification of debt			—						—						(729)						—
Less: Provision for income taxes			10,047						820						34,069						22,776
Net income (loss)			$	8,969					$	(16,849)					$	53,541					$	32,698

Schedule of Reconciliation of Assets From Segment to Consolidated

As of May 3, 2025, finite-lived intangible assets, goodwill, and maintenance spares are assigned to asset groups within the following segments (in thousands):

			May 3, 2025
			Networking Platforms						Platform Software and Services						Blue Planet Automation Software and Services						Global Services						Total
Other intangible assets, net			$	144,673					—						2,786						—						$	147,459
Goodwill			$	199,565					156,191						89,049						—						$	444,805
Maintenance spares, net			$	—					—						—						88,507						$	88,507

Schedule of Ciena's Geographic Distribution of Revenue and Long-Lived Assets

For the periods indicated, Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets was as follows (in thousands):

			May 3, 2025						November 2, 2024
Canada			$	296,820					$	283,760
United States			45,447						49,195
Other International			45,737						32,184
Total			$	388,004					$	365,139

X

- Definition

Tabular disclosure of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets.

+ References

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-Name Accounting Standards Codification
-Topic 280
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-Section 50
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- Definition

Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

+ References

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Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

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