Ciena Corporation (CIEN) vs Nebius Group N.V. (NBIS)
A side-by-side comparison of Ciena Corporation and Nebius Group N.V. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 13, 2026. Differences are shown without an overall score or investment verdict.
CIEN
Ciena Corporation
$368.56TechnologyDelayed quote: Sep 22, 2026, 4:00 PM EDT
NBIS
Nebius Group N.V.
$236.12TechnologyDelayed quote: Sep 22, 2026, 4:00 PM EDT
Total return — CIEN vs NBIS
growth of $100 · dividends reinvested · last 2yCIEN +425.5% (+129.2%/yr)NBIS +1022.8% (+235.1%/yr)NBIS compounded faster over this window
CIEN NBIS
CIEN vs NBIS: by the numbers
- •NBIS is the larger company ($56.67B vs $52.17B market cap).
- •CIEN converts more revenue to profit (10.87% vs 4.55% net margin).
- •CIEN grew revenue faster over the past five years (12.05% vs -18.63% CAGR).
Metrics side by side
Valuation
| Metric | CIEN | NBIS |
|---|---|---|
| P/E ratio | 82.27 | N/A |
| Forward P/E | 51.37 | N/A |
| P/S ratio | 8.66 | 41.82 |
| P/B ratio | 17.07 | 5.48 |
| EV / EBITDA | 47.78 | 521.16 |
| FCF yield | 1.38% | N/A |
Profitability
| Metric | CIEN | NBIS |
|---|---|---|
| Gross margin | 44.07% | 68.63% |
| Operating margin | 14.10% | -112.53% |
| Net margin | 10.87% | 4.55% |
| ROE | 21.41% | 0.60% |
| ROIC | 11.56% | -2.24% |
Growth (annualized)
| Metric | CIEN | NBIS |
|---|---|---|
| Revenue CAGR (5Y) | 12.05% | -18.63% |
| EPS CAGR (5Y) | -17.95% | -35.43% |
| FCF CAGR (5Y) | 13.27% | N/A |
| Total return CAGR (5Y) | 45.31% | N/A |
Frequently asked
- Which has grown faster, CIEN or NBIS?
- Over the past five years, CIEN grew revenue faster — CIEN at a 12.05% CAGR versus NBIS at -18.63%.
- Is CIEN or NBIS more profitable?
- CIEN runs the higher net margin — CIEN at 10.87% versus NBIS at 4.55%.
Go deeper
Dig into the metrics
Ciena P/E ratioCiena ROENebius ROECiena operating marginNebius operating marginCiena revenue growthNebius revenue growthCiena free cash flowNebius free cash flow
Ciena & Nebius appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 13, 2026.