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

CIEN has the lower trailing P/E: CIEN trades at 82.27 and STM at 104.73. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, CIEN or STM?

Over the past five years, CIEN grew revenue faster — CIEN at a 12.05% CAGR versus STM at 1.90%.

Does CIEN or STM pay a bigger dividend?

STM pays a dividend (0.70% yield), while CIEN has no payments in the available dividend history.

Is CIEN or STM more profitable?

CIEN runs the higher net margin — CIEN at 10.87% versus STM at 3.55%.

How have CIEN and STM total returns compared?

Over the past 10 years, CIEN delivered 32.05% and STM delivered 22.55% annualized total return. Past performance doesn't predict future results.

Ciena Corporation (CIEN) vs STMicroelectronics N.V. (STM)

A side-by-side comparison of Ciena Corporation and STMicroelectronics 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

$52.17B

$368.56TechnologyDelayed quote: Sep 22, 2026, 4:00 PM EDT

STM

STMicroelectronics N.V.

$47.67B

$53.41TechnologyDelayed quote: Sep 22, 2026, 4:00 PM EDT

Total return — CIEN vs STM

growth of $100 · dividends reinvested · last 10y

CIEN +1475.9% (+31.8%/yr)STM +640.6% (+22.2%/yr)CIEN compounded faster over this window

CIEN STM

CIEN vs STM: by the numbers

•CIEN is the larger company ($52.17B vs $47.67B market cap).
•CIEN trades at the lower trailing earnings multiple (82.27 vs 104.73 P/E), one valuation lens rather than an overall verdict.
•CIEN converts more revenue to profit (10.87% vs 3.55% net margin).
•CIEN grew revenue faster over the past five years (12.05% vs 1.90% CAGR).
•STM pays a dividend (0.70% yield), while CIEN has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	CIEN	STM
P/E ratio	82.27	104.73
Forward P/E	51.37	39.28
P/S ratio	8.66	3.64
P/B ratio	17.07	2.70
EV / EBITDA	47.78	22.76
FCF yield	1.38%	0.45%

Profitability

Metric	CIEN	STM
Gross margin	44.07%	34.29%
Operating margin	14.10%	5.23%
Net margin	10.87%	3.55%
ROE	21.41%	2.64%
ROIC	11.56%	1.88%

Dividends

Metric	CIEN	STM
Dividend yield	N/A	0.70%
Payout ratio	N/A	70.59%

Growth (annualized)

Metric	CIEN	STM
Revenue CAGR (5Y)	12.05%	1.90%
EPS CAGR (5Y)	-17.95%	-31.29%
FCF CAGR (5Y)	13.27%	-27.07%
Total return CAGR (5Y)	45.31%	3.62%

Frequently asked

Which has the lower trailing P/E, CIEN or STM?: CIEN has the lower trailing P/E: CIEN trades at 82.27 and STM at 104.73. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, CIEN or STM?: Over the past five years, CIEN grew revenue faster — CIEN at a 12.05% CAGR versus STM at 1.90%.
Does CIEN or STM pay a bigger dividend?: STM pays a dividend (0.70% yield), while CIEN has no payments in the available dividend history.
Is CIEN or STM more profitable?: CIEN runs the higher net margin — CIEN at 10.87% versus STM at 3.55%.
How have CIEN and STM total returns compared?: Over the past 10 years, CIEN delivered 32.05% and STM delivered 22.55% annualized total return. Past performance doesn't predict future results.

Go deeper

Full CIEN analysis Full STM analysis Interactive comparison tool

Dig into the metrics

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

Ciena & STMicroelectronics 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 September 13, 2026.