Which has the lower trailing P/E, ACLS or TENB?

ACLS has the lower trailing P/E: ACLS trades at 49.59 and TENB at 591.49. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, ACLS or TENB?

Over the past five years, TENB grew revenue faster — ACLS at a 11.06% CAGR versus TENB at 16.62%.

Is ACLS or TENB more profitable?

ACLS runs the higher net margin — ACLS at 10.71% versus TENB at 0.65%.

How have ACLS and TENB total returns compared?

Over the past 5 years, ACLS delivered 25.31% and TENB delivered -4.99% annualized total return. Past performance doesn't predict future results.

Axcelis Technologies, Inc. (ACLS) vs Tenable Holdings, Inc. (TENB)

A side-by-side comparison of Axcelis Technologies, Inc. and Tenable Holdings, 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.

ACLS

Axcelis Technologies, Inc.

$4.54B

$147.77TechnologyDelayed quote: Oct 2, 2026, 4:00 PM EDT

TENB

Tenable Holdings, Inc.

$4.06B

$36.85TechnologyDelayed quote: Oct 2, 2026, 4:00 PM EDT

Total return — ACLS vs TENB

growth of $100 · dividends reinvested · last 8y

ACLS +517.3% (+25.5%/yr)TENB +19.4% (+2.2%/yr)ACLS compounded faster over this window

Log scale — wide-divergence pair

ACLS TENB

ACLS vs TENB: by the numbers

•ACLS is the larger company ($4.54B vs $4.06B market cap).
•ACLS trades at the lower trailing earnings multiple (49.59 vs 591.49 P/E), one valuation lens rather than an overall verdict.
•ACLS converts more revenue to profit (10.71% vs 0.65% net margin).
•TENB grew revenue faster over the past five years (16.62% vs 11.06% CAGR).

Metrics side by side

Valuation

Metric	ACLS	TENB
P/E ratio	49.59	591.49
Forward P/E	35.99	N/A
PEG ratio	2.35	N/A
P/S ratio	5.24	3.89
P/B ratio	4.26	20.48
EV / EBITDA	41.35	47.26
FCF yield	1.44%	6.49%

Profitability

Metric	ACLS	TENB
Gross margin	43.01%	78.05%
Operating margin	10.33%	4.79%
Net margin	10.71%	0.65%
ROE	8.71%	3.40%
ROIC	6.58%	3.38%

Growth (annualized)

Metric	ACLS	TENB
Revenue CAGR (5Y)	11.06%	16.62%
EPS CAGR (5Y)	20.50%	N/A
FCF CAGR (5Y)	4.66%	25.12%
Total return CAGR (5Y)	25.31%	-4.99%

Frequently asked

Which has the lower trailing P/E, ACLS or TENB?: ACLS has the lower trailing P/E: ACLS trades at 49.59 and TENB at 591.49. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, ACLS or TENB?: Over the past five years, TENB grew revenue faster — ACLS at a 11.06% CAGR versus TENB at 16.62%.
Is ACLS or TENB more profitable?: ACLS runs the higher net margin — ACLS at 10.71% versus TENB at 0.65%.
How have ACLS and TENB total returns compared?: Over the past 5 years, ACLS delivered 25.31% and TENB delivered -4.99% annualized total return. Past performance doesn't predict future results.

Go deeper

Full ACLS analysis Full TENB analysis Interactive comparison tool

Dig into the metrics

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

Axcelis Technologies & Tenable appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks 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.