Which has grown faster, ACLS or AMBA?

Over the past five years, AMBA grew revenue faster — ACLS at a 11.06% CAGR versus AMBA at 11.19%.

Is ACLS or AMBA more profitable?

ACLS runs the higher net margin — ACLS at 10.71% versus AMBA at -17.18%.

How have ACLS and AMBA total returns compared?

Over the past 10 years, ACLS delivered 25.68% and AMBA delivered 0.24% annualized total return. Past performance doesn't predict future results.

Axcelis Technologies, Inc. (ACLS) vs Ambarella, Inc. (AMBA)

A side-by-side comparison of Axcelis Technologies, Inc. and Ambarella, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 1, 2026. Differences are shown without an overall score or investment verdict.

ACLS

Axcelis Technologies, Inc.

$3.54B

$115.33TechnologyAt close: Aug 31, 2026, 4:00 PM ET

AMBA

Ambarella, Inc.

$3.04B

$69.38TechnologyDelayed quote: Aug 31, 2026, 4:00 PM EDT

Total return — ACLS vs AMBA

growth of $100 · dividends reinvested · last 10y

ACLS +962.7% (+26.7%/yr)AMBA +0.1% (+0.0%/yr)ACLS compounded faster over this window

Log scale — wide-divergence pair

ACLS AMBA

ACLS vs AMBA: by the numbers

•ACLS is the larger company ($3.54B vs $3.04B market cap).
•ACLS is profitable (10.71% net margin) while AMBA runs a net loss (-17.18%).
•AMBA grew revenue faster over the past five years (11.19% vs 11.06% CAGR).

Metrics side by side

Valuation

Metric	ACLS	AMBA
P/E ratio	38.70	N/A
Forward P/E	28.09	118.52
P/S ratio	4.15	7.60
P/B ratio	3.37	5.08
EV / EBITDA	32.47	N/A
FCF yield	1.83%	0.85%

Profitability

Metric	ACLS	AMBA
Gross margin	43.01%	58.28%
Operating margin	10.33%	-18.18%
Net margin	10.71%	-17.18%
ROE	8.71%	-11.49%
ROIC	6.58%	-11.73%

Growth (annualized)

Metric	ACLS	AMBA
Revenue CAGR (5Y)	11.06%	11.19%
EPS CAGR (5Y)	20.50%	-2.29%
FCF CAGR (5Y)	4.66%	16.65%
Total return CAGR (5Y)	18.33%	-7.16%

Frequently asked

Which has grown faster, ACLS or AMBA?: Over the past five years, AMBA grew revenue faster — ACLS at a 11.06% CAGR versus AMBA at 11.19%.
Is ACLS or AMBA more profitable?: ACLS runs the higher net margin — ACLS at 10.71% versus AMBA at -17.18%.
How have ACLS and AMBA total returns compared?: Over the past 10 years, ACLS delivered 25.68% and AMBA delivered 0.24% annualized total return. Past performance doesn't predict future results.

Go deeper

Full ACLS analysis Full AMBA analysis Interactive comparison tool

Dig into the metrics

Axcelis Technologies P/E ratio Axcelis Technologies ROE Ambarella ROE Axcelis Technologies operating margin Ambarella operating margin Axcelis Technologies revenue growth Ambarella revenue growth Axcelis Technologies free cash flow Ambarella free cash flow

Axcelis Technologies & Ambarella 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 September 1, 2026.