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

STM has the lower trailing P/E: CIEN trades at 137.46 and STM at 110.00. 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 10.39% CAGR versus STM at 1.90%.

Does CIEN or STM pay a bigger dividend?

STM pays a dividend (0.64% 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 7.87% versus STM at 3.55%.

How have CIEN and STM total returns compared?

Over the past 10 years, CIEN delivered 35.18% and STM delivered 23.78% 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 August 8, 2026. Differences are shown without an overall score or investment verdict.

CIEN

Ciena Corporation

$58.38B

$412.39TechnologyAt close: Aug 7, 2026, 4:00 PM ET

STM

STMicroelectronics N.V.

$50.07B

$56.10TechnologyAt close: Aug 7, 2026, 4:00 PM ET

Total return — CIEN vs STM

growth of $100 · dividends reinvested · last 29y

CIEN +218.4%STM +691.4%STM compounded faster

CIEN STM

CIEN vs STM: by the numbers

•CIEN is the larger company ($58.38B vs $50.07B market cap).
•STM trades at the lower trailing earnings multiple (110.00 vs 137.46 P/E), one valuation lens rather than an overall verdict.
•CIEN converts more revenue to profit (7.87% vs 3.55% net margin).
•CIEN grew revenue faster over the past five years (10.39% vs 1.90% CAGR).
•STM pays a dividend (0.64% yield), while CIEN has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	CIEN	STM
P/E ratio	137.46	110.00
Forward P/E	63.12	41.97
P/S ratio	10.83	3.98
P/B ratio	20.86	2.95
PEG ratio	4.37	N/A
EV / EBITDA	75.46	24.81
FCF yield	1.38%	0.71%

Profitability

Metric	CIEN	STM
Gross margin	43.05%	34.29%
Operating margin	11.18%	5.23%
Net margin	7.87%	3.55%
ROE	15.15%	2.64%
ROIC	5.35%	0.67%

Dividends

Metric	CIEN	STM
Dividend yield	N/A	0.64%
Payout ratio	N/A	189.47%

Growth (annualized)

Metric	CIEN	STM
Revenue CAGR (5Y)	10.39%	1.90%
EPS CAGR (5Y)	-17.95%	-31.29%
FCF CAGR (5Y)	11.11%	-18.72%
Total return CAGR (5Y)	48.60%	6.79%

Frequently asked

Which has the lower trailing P/E, CIEN or STM?: STM has the lower trailing P/E: CIEN trades at 137.46 and STM at 110.00. 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 10.39% CAGR versus STM at 1.90%.
Does CIEN or STM pay a bigger dividend?: STM pays a dividend (0.64% 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 7.87% versus STM at 3.55%.
How have CIEN and STM total returns compared?: Over the past 10 years, CIEN delivered 35.18% and STM delivered 23.78% 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 Ciena dividend yield 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 August 8, 2026.