Which has the lower trailing P/E, PLXS or QLYS?

QLYS has the lower trailing P/E: PLXS trades at 40.34 and QLYS at 33.39. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, PLXS or QLYS?

Over the past five years, QLYS grew revenue faster — PLXS at a 5.97% CAGR versus QLYS at 12.87%.

Is PLXS or QLYS more profitable?

QLYS runs the higher net margin — PLXS at 4.03% versus QLYS at 29.34%.

How have PLXS and QLYS total returns compared?

Over the past 10 years, PLXS delivered 19.17% and QLYS delivered 17.24% annualized total return. Past performance doesn't predict future results.

Plexus Corp. (PLXS) vs Qualys, Inc. (QLYS)

A side-by-side comparison of Plexus Corp. and Qualys, Inc. 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.

PLXS

Plexus Corp.

$7.31B

$273.13TechnologyDelayed quote: Oct 2, 2026, 4:00 PM EDT

QLYS

Qualys, Inc.

$6.80B

$193.00TechnologyDelayed quote: Oct 2, 2026, 4:00 PM EDT

Total return — PLXS vs QLYS

growth of $100 · dividends reinvested · last 10y

PLXS +481.5% (+19.2%/yr)QLYS +391.2% (+17.3%/yr)PLXS compounded faster over this window

PLXS QLYS

PLXS vs QLYS: by the numbers

•PLXS is the larger company ($7.31B vs $6.80B market cap).
•QLYS trades at the lower trailing earnings multiple (33.39 vs 40.34 P/E), one valuation lens rather than an overall verdict.
•QLYS converts more revenue to profit (29.34% vs 4.03% net margin).
•QLYS grew revenue faster over the past five years (12.87% vs 5.97% CAGR).

Metrics side by side

Valuation

Metric	PLXS	QLYS
P/E ratio	40.34	33.39
Forward P/E	26.91	24.64
PEG ratio	4.12	1.72
P/S ratio	1.59	9.65
P/B ratio	4.78	12.09
EV / EBITDA	23.73	25.78
FCF yield	0.85%	4.62%

Profitability

Metric	PLXS	QLYS
Gross margin	10.04%	83.45%
Operating margin	5.02%	34.61%
Net margin	4.03%	29.34%
ROE	12.13%	36.74%
ROIC	10.63%	30.65%

Growth (annualized)

Metric	PLXS	QLYS
Revenue CAGR (5Y)	5.97%	12.87%
EPS CAGR (5Y)	9.75%	18.60%
FCF CAGR (5Y)	-21.38%	12.05%
Total return CAGR (5Y)	24.30%	10.97%

Frequently asked

Which has the lower trailing P/E, PLXS or QLYS?: QLYS has the lower trailing P/E: PLXS trades at 40.34 and QLYS at 33.39. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, PLXS or QLYS?: Over the past five years, QLYS grew revenue faster — PLXS at a 5.97% CAGR versus QLYS at 12.87%.
Is PLXS or QLYS more profitable?: QLYS runs the higher net margin — PLXS at 4.03% versus QLYS at 29.34%.
How have PLXS and QLYS total returns compared?: Over the past 10 years, PLXS delivered 19.17% and QLYS delivered 17.24% annualized total return. Past performance doesn't predict future results.

Go deeper

Full PLXS analysis Full QLYS analysis Interactive comparison tool

Dig into the metrics

Plexus P/E ratio Qualys P/E ratio Plexus ROE Qualys ROE Plexus operating margin Qualys operating margin Plexus revenue growth Qualys revenue growth Plexus free cash flow Qualys free cash flow

Plexus & Qualys appear in these rankings

Highest ROE Stocks Highest ROIC Stocks Highest Operating Margin Stocks Highest FCF Yield 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.