Which has grown faster, AMBA or PLXS?

Over the past five years, AMBA grew revenue faster — AMBA at a 11.19% CAGR versus PLXS at 4.36%.

Is AMBA or PLXS more profitable?

PLXS runs the higher net margin — AMBA at -17.18% versus PLXS at 4.35%.

Which has been the better investment, AMBA or PLXS?

Over the past 10-year, PLXS delivered the higher annualized total return — AMBA at 1.96% versus PLXS at 18.94%. Past performance doesn't predict future results.

Ambarella, Inc. (AMBA) vs Plexus Corp. (PLXS)

PLXS leads on 10 of 13 compared metrics.

A side-by-side comparison of Ambarella, Inc. and Plexus Corp. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 25, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

AMBA

Ambarella, Inc.

$2.99B

$68.06TechnologyAt close: Jul 24, 2026, 4:00 PM ET

PLXS

Plexus Corp.

$6.81B

$254.45TechnologyAt close: Jul 24, 2026, 4:00 PM ET

Total return — AMBA vs PLXS

growth of $100 · dividends reinvested · last 14y

AMBA +1023.1%PLXS +756.7%AMBA compounded faster

AMBA PLXS

AMBA vs PLXS: by the numbers

•PLXS is the larger company ($6.81B vs $2.99B market cap).
•PLXS is profitable (4.35% net margin) while AMBA runs a net loss (-17.18%).
•AMBA grew revenue faster over the past five years (11.19% vs 4.36% CAGR).

Which is better, AMBA or PLXS?

Metric tally: AMBA 3 · PLXS 10

It depends on what you're optimizing for:

GrowthAMBA(faster 5Y revenue CAGR)

QualityPLXS(higher ROIC)

Metrics side by side

Valuation

Metric	AMBA	PLXS
P/E ratio	—	37.20
Forward P/E	114.21	31.04●
P/S ratio	7.32	1.62●
P/B ratio	4.90	4.67●
PEG ratio	—	0.40
EV / EBITDA	—	23.07
FCF yield	0.88%	1.09%●

Profitability

Metric	AMBA	PLXS
Gross margin	58.28%●	10.05%
Operating margin	-18.18%	5.17%●
Net margin	-17.18%	4.35%●
ROE	-11.49%	12.59%●
ROIC	-13.25%	11.13%●

Growth (annualized)

Metric	AMBA	PLXS
Revenue CAGR (5Y)	11.19%●	4.36%
EPS CAGR (5Y)	-2.29%	10.10%●
FCF CAGR (5Y)	16.65%●	-18.53%
Total return CAGR (5Y)	-6.31%	24.12%●

Frequently asked

Which is better, AMBA or PLXS?: It depends on your goal. growth: AMBA (faster 5Y revenue CAGR); quality: PLXS (higher ROIC). Across all compared metrics, PLXS leads 10 to 3.
Which has grown faster, AMBA or PLXS?: Over the past five years, AMBA grew revenue faster — AMBA at a 11.19% CAGR versus PLXS at 4.36%.
Is AMBA or PLXS more profitable?: PLXS runs the higher net margin — AMBA at -17.18% versus PLXS at 4.35%.
Which has been the better investment, AMBA or PLXS?: Over the past 10-year, PLXS delivered the higher annualized total return — AMBA at 1.96% versus PLXS at 18.94%. Past performance doesn't predict future results.

Go deeper

Full AMBA analysis Full PLXS analysis Interactive comparison tool

Dig into the metrics

Ambarella P/E ratio Plexus P/E ratio Ambarella dividend yield Plexus dividend yield Ambarella ROE Plexus ROE Ambarella operating margin Plexus operating margin Ambarella revenue growth Plexus revenue growth Ambarella free cash flow Plexus free cash flow

Ambarella & Plexus appear in these rankings

Best 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 July 25, 2026.