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

CIEN has the lower trailing P/E: ALAB trades at 172.58 and CIEN at 87.36. P/E is one valuation measure and does not by itself establish which business is cheaper.

Is ALAB or CIEN more profitable?

ALAB runs the higher net margin — ALAB at 30.74% versus CIEN at 10.87%.

Astera Labs, Inc. Common Stock (ALAB) vs Ciena Corporation (CIEN)

A side-by-side comparison of Astera Labs, Inc. Common Stock and Ciena Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 2, 2026. Differences are shown without an overall score or investment verdict.

ALAB

Astera Labs, Inc. Common Stock

$60.05B

$350.33TechnologyDelayed quote: Oct 2, 2026, 4:00 PM EDT

CIEN

Ciena Corporation

$55.40B

$391.36TechnologyDelayed quote: Oct 2, 2026, 3:59 PM EDT

Total return — ALAB vs CIEN

growth of $100 · dividends reinvested · last 3y

ALAB +474.6% (+79.1%/yr)CIEN +636.1% (+94.5%/yr)CIEN compounded faster over this window

ALAB CIEN

ALAB vs CIEN: by the numbers

•ALAB is the larger company ($60.05B vs $55.40B market cap).
•CIEN trades at the lower trailing earnings multiple (87.36 vs 172.58 P/E), one valuation lens rather than an overall verdict.
•ALAB converts more revenue to profit (30.74% vs 10.87% net margin).

Metrics side by side

Valuation

Metric	ALAB	CIEN
P/E ratio	172.58	87.36
Forward P/E	87.76	54.62
P/S ratio	49.96	9.20
P/B ratio	34.80	18.12
EV / EBITDA	209.99	50.87
FCF yield	0.46%	1.30%

Profitability

Metric	ALAB	CIEN
Gross margin	75.13%	44.07%
Operating margin	22.75%	14.10%
Net margin	30.74%	10.87%
ROE	21.41%	21.41%
ROIC	15.47%	11.56%

Growth (annualized)

Metric	ALAB	CIEN
Revenue CAGR (5Y)	N/A	12.05%
EPS CAGR (5Y)	N/A	-17.95%
FCF CAGR (5Y)	N/A	13.27%
Total return CAGR (5Y)	N/A	48.66%

Frequently asked

Which has the lower trailing P/E, ALAB or CIEN?: CIEN has the lower trailing P/E: ALAB trades at 172.58 and CIEN at 87.36. P/E is one valuation measure and does not by itself establish which business is cheaper.
Is ALAB or CIEN more profitable?: ALAB runs the higher net margin — ALAB at 30.74% versus CIEN at 10.87%.

Go deeper

Full ALAB analysis Full CIEN analysis Interactive comparison tool

Dig into the metrics

Astera Labs, Inc. Common Stock P/E ratio Ciena P/E ratio Astera Labs, Inc. Common Stock ROE Ciena ROE Astera Labs, Inc. Common Stock operating margin Ciena operating margin Astera Labs, Inc. Common Stock revenue growth Ciena revenue growth Astera Labs, Inc. Common Stock free cash flow Ciena free cash flow

Astera Labs, Inc. Common Stock & Ciena 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 October 2, 2026.