Filing Flows › Ciena (CIEN) › Q4 FY25
Ciena (CIEN) Q4 FY25 earnings results (fourth quarter fiscal 2025)
10-K filed Dec 12, 2025
Ciena (CIEN) reported revenue of $1.4B for the fourth quarter fiscal 2025 (Q4 FY25), +20% from a year earlier and +11% from the quarter before. Operating margin was 0.8%, net earnings $19.5M (1.4% of revenue).
Ciena, Q4 FY25: revenue $1.4B (+20% year over year), operating margin 0.8%, net earnings $19.5M, operating cash flow $371M. The chart follows the revenue to costs, profit and cash.
| Q4 FY25 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $1.4B | +11% | +20% |
| Gross profit | $577M | +15% | +25% |
| Operating profit | $10.5M | -86% | -82% |
| Net earnings | $19.5M | -61% | -47% |
| Operating cash flow | $371M | +113% | +6% |
| Free cash flow | $326M | +142% | +23% |
What changed
Revenue was $1.4B in Q4 FY25, up 20% year over year and up 11% from the previous quarter. Networking Platforms was the largest line at 77% of revenue.
Gross margin was 42.7%, up 1.8 points from Q4 FY24. Operating profit was $0.01B, a 0.8% margin (down 4.5 points year over year). Operating profit fell $0.05B even though revenue rose $0.23B versus Q4 FY24, so costs grew faster than sales. Operating expenses grew 41% against revenue growth of 20%. The fastest-growing cost line was Other operating costs (+1066%). Net earnings were $0.02B, down 47% year over year. The tax line was a benefit of $0.02B on pre-tax earnings of $2.9M.
Operating cash flow was $0.37B (up 6% year over year), 1904% of net earnings. Non-cash charges added back $0.03B of depreciation and amortization and $0.05B of share-based compensation. Working capital and other items added $0.27B. Capital expenditures of $0.05B left free cash flow of $0.33B.
Questions
What was Ciena's revenue in the fourth quarter fiscal 2025?
Ciena (CIEN) reported revenue of $1.4B for the fourth quarter fiscal 2025 (Q4 FY25), +20% from a year earlier and +11% from the quarter before.
Was Ciena profitable in the fourth quarter fiscal 2025?
Operating profit was $10.5M (0.8% of revenue) and net earnings $19.5M.
Source: Ciena 10-K on SEC EDGAR.