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Ciena vs Adtran Holdings: CIEN and ADTN compared
Ciena is the larger company: $1.7B of revenue in its latest quarter (Q3 FY26) against $281M for Adtran Holdings (Q3 2026). Ciena is growing faster (+37% against +0.6% a year earlier). Ciena is more profitable, with an operating margin of 18.0% against -0.3%.
Where the money goes: CIEN and ADTN
Ciena (CIEN) · Q3 FY26
Ciena, Q3 FY26: revenue $1.7B (+37% year over year), operating margin 18.0%, net earnings $266M, operating cash flow $196M. The chart follows the revenue to costs, profit and cash.
Adtran Holdings (ADTN) · Q3 2026
Adtran Holdings, Q3 2026: revenue $281M (+0.6% year over year), operating margin -0.3%, net loss $7.1M, operating cash flow −$24.5M. The chart follows the revenue to costs, profit and cash.
| Ciena (CIEN) | Adtran Holdings (ADTN) | |
|---|---|---|
| Latest quarter | Q3 FY26 | Q3 2026 |
| Revenue | $1.7B | $281M |
| Revenue growth, Y/Y | +37% | +0.6% |
| Gross margin | 45.4% | — |
| Operating margin | 18.0% | -0.3% |
| Net earnings | $266M | −$7.1M |
| Net margin | 15.9% | -2.5% |
| Operating cash flow | $196M | −$24.5M |
| Free cash flow | $116M | — |
| Market value | $35.3B | — |
| P/E | 54.0× | — |
| Analysts’ mean target | $512.99 | — |
Where the revenue comes from
Ciena
- Products: $1.4B (83%)
- Routing and Switching: $164M (10%)
- Platform Software and Services: $98.7M (6%)
- Advisory and Enablement: $15.9M (1%)
Adtran Holdings
- Network Solutions: $231M (82%)
- Services and Support: $49.9M (18%)
Questions
Which is bigger, Ciena or Adtran Holdings?
Ciena is the larger company: $1.7B of revenue in its latest quarter (Q3 FY26) against $281M for Adtran Holdings (Q3 2026).
Is Ciena or Adtran Holdings growing faster?
Ciena is growing faster (+37% against +0.6% a year earlier).
Which is more profitable, Ciena or Adtran Holdings?
Ciena is more profitable, with an operating margin of 18.0% against -0.3%.
More: Ciena earnings · how Ciena makes money · Adtran Holdings earnings · how Adtran Holdings makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Sep 3, 2026; 10-Q filed Nov 5, 2026). Fiscal quarters can end on different dates. Not investment advice.