Which has the lower trailing P/E, CIEN or NBIS?

NBIS has the lower trailing P/E: CIEN trades at 137.04 and NBIS at 75.25. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, CIEN or NBIS?

Over the past five years, CIEN grew revenue faster — CIEN at a 10.39% CAGR versus NBIS at -23.11%.

Is CIEN or NBIS more profitable?

NBIS runs the higher net margin — CIEN at 7.87% versus NBIS at 95.27%.

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 August 5, 2026. Differences are shown without an overall score or investment verdict.

CIEN

Ciena Corporation

$58.20B

$411.13TechnologyDelayed quote: Aug 4, 2026, 4:00 PM EDT

NBIS

Nebius Group N.V.

$54.18B

$225.74TechnologyDelayed quote: Aug 4, 2026, 4:00 PM EDT

Total return — CIEN vs NBIS

growth of $100 · dividends reinvested · last 2y

CIEN +518.1%NBIS +1028.7%NBIS compounded faster

CIEN NBIS

CIEN vs NBIS: by the numbers

•CIEN is the larger company ($58.20B vs $54.18B market cap).
•NBIS trades at the lower trailing earnings multiple (75.25 vs 137.04 P/E), one valuation lens rather than an overall verdict.
•NBIS converts more revenue to profit (95.27% vs 7.87% net margin).
•CIEN grew revenue faster over the past five years (10.39% vs -23.11% CAGR).

Metrics side by side

Valuation

Metric	CIEN	NBIS
P/E ratio	137.04	75.25
Forward P/E	62.93	N/A
P/S ratio	10.80	79.45
P/B ratio	20.80	9.63
PEG ratio	4.37	N/A
EV / EBITDA	75.23	N/A
FCF yield	1.38%	N/A

Profitability

Metric	CIEN	NBIS
Gross margin	43.05%	68.63%
Operating margin	11.18%	-112.53%
Net margin	7.87%	95.27%
ROE	15.15%	11.55%
ROIC	5.35%	-4.75%

Growth (annualized)

Metric	CIEN	NBIS
Revenue CAGR (5Y)	10.39%	-23.11%
EPS CAGR (5Y)	-17.95%	-35.43%
FCF CAGR (5Y)	11.11%	N/A
Total return CAGR (5Y)	48.50%	N/A

Frequently asked

Which has the lower trailing P/E, CIEN or NBIS?: NBIS has the lower trailing P/E: CIEN trades at 137.04 and NBIS at 75.25. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, CIEN or NBIS?: Over the past five years, CIEN grew revenue faster — CIEN at a 10.39% CAGR versus NBIS at -23.11%.
Is CIEN or NBIS more profitable?: NBIS runs the higher net margin — CIEN at 7.87% versus NBIS at 95.27%.

Go deeper

Full CIEN analysis Full NBIS analysis Interactive comparison tool

Dig into the metrics

Ciena P/E ratio Nebius P/E ratio Ciena dividend yield Nebius dividend yield Ciena ROE Nebius ROE Ciena operating margin Nebius operating margin Ciena revenue growth Nebius revenue growth Ciena free cash flow Nebius free cash flow

Ciena & Nebius appear in these rankings

Highest 10-Year Total Return Stocks

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 August 5, 2026.