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

KEYS has the lower trailing P/E: CIEN trades at 137.46 and KEYS at 56.17. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, CIEN or KEYS?

Over the past five years, CIEN grew revenue faster — CIEN at a 10.39% CAGR versus KEYS at 5.62%.

Is CIEN or KEYS more profitable?

KEYS runs the higher net margin — CIEN at 7.87% versus KEYS at 17.25%.

How have CIEN and KEYS total returns compared?

Over the past 10 years, CIEN delivered 35.18% and KEYS delivered 27.97% annualized total return. Past performance doesn't predict future results.

Ciena Corporation (CIEN) vs Keysight Technologies, Inc. (KEYS)

A side-by-side comparison of Ciena Corporation and Keysight Technologies, Inc. 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

KEYS

Keysight Technologies, Inc.

$58.27B

$340.97TechnologyAt close: Aug 7, 2026, 4:00 PM ET

Total return — CIEN vs KEYS

growth of $100 · dividends reinvested · last 12y

CIEN +2794.0%KEYS +1107.0%CIEN compounded faster

CIEN KEYS

CIEN vs KEYS: by the numbers

•CIEN is the larger company ($58.38B vs $58.27B market cap).
•KEYS trades at the lower trailing earnings multiple (56.17 vs 137.46 P/E), one valuation lens rather than an overall verdict.
•KEYS converts more revenue to profit (17.25% vs 7.87% net margin).
•CIEN grew revenue faster over the past five years (10.39% vs 5.62% CAGR).

Metrics side by side

Valuation

Metric	CIEN	KEYS
P/E ratio	137.46	56.17
Forward P/E	63.12	33.52
P/S ratio	10.83	9.69
P/B ratio	20.86	9.32
PEG ratio	4.37	0.96
EV / EBITDA	75.46	45.29
FCF yield	1.38%	2.45%

Profitability

Metric	CIEN	KEYS
Gross margin	43.05%	63.67%
Operating margin	11.18%	18.17%
Net margin	7.87%	17.25%
ROE	15.15%	16.59%
ROIC	5.35%	8.02%

Growth (annualized)

Metric	CIEN	KEYS
Revenue CAGR (5Y)	10.39%	5.62%
EPS CAGR (5Y)	-17.95%	7.90%
FCF CAGR (5Y)	11.11%	5.73%
Total return CAGR (5Y)	48.60%	15.39%

Frequently asked

Which has the lower trailing P/E, CIEN or KEYS?: KEYS has the lower trailing P/E: CIEN trades at 137.46 and KEYS at 56.17. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, CIEN or KEYS?: Over the past five years, CIEN grew revenue faster — CIEN at a 10.39% CAGR versus KEYS at 5.62%.
Is CIEN or KEYS more profitable?: KEYS runs the higher net margin — CIEN at 7.87% versus KEYS at 17.25%.
How have CIEN and KEYS total returns compared?: Over the past 10 years, CIEN delivered 35.18% and KEYS delivered 27.97% annualized total return. Past performance doesn't predict future results.

Go deeper

Full CIEN analysis Full KEYS analysis Interactive comparison tool

Dig into the metrics

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

Ciena & Keysight Technologies 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.