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Side-by-side financial comparison of AXCELIS TECHNOLOGIES INC (ACLS) and Tenable Holdings, Inc. (TENB). Click either name above to swap in a different company.

Tenable Holdings, Inc. is the larger business by last-quarter revenue ($262.1M vs $238.3M, roughly 1.1× AXCELIS TECHNOLOGIES INC). AXCELIS TECHNOLOGIES INC runs the higher net margin — 14.4% vs 0.5%, a 13.9% gap on every dollar of revenue. On growth, Tenable Holdings, Inc. posted the faster year-over-year revenue change (9.6% vs -5.6%). Tenable Holdings, Inc. produced more free cash flow last quarter ($82.6M vs $-8.9M). Over the past eight quarters, Tenable Holdings, Inc.'s revenue compounded faster (8.8% CAGR vs -2.8%).

Axcelis Technologies, Inc. is an American company engaging in the design, manufacture, and servicing of capital equipment for the semiconductor manufacturing industry worldwide. It produces ion implantation systems, including high and medium current implanters, and high energy implanters, and curing systems used in the fabrication of semiconductor chips. The company was incorporated in 1995 and is headquartered in Beverly, Massachusetts, United States.

Tenable Holdings, Inc. is a cybersecurity company based in Columbia, Maryland. Its vulnerability scanner software Nessus, developed in 1998, is one of the most widely deployed vulnerability assessment solutions in the cybersecurity industry. As of December 31, 2023, the company had approximately 44,000 customers, including 65% of the Fortune 500.

ACLS vs TENB — Head-to-Head

Bigger by revenue
TENB
TENB
1.1× larger
TENB
$262.1M
$238.3M
ACLS
Growing faster (revenue YoY)
TENB
TENB
+15.2% gap
TENB
9.6%
-5.6%
ACLS
Higher net margin
ACLS
ACLS
13.9% more per $
ACLS
14.4%
0.5%
TENB
More free cash flow
TENB
TENB
$91.5M more FCF
TENB
$82.6M
$-8.9M
ACLS
Faster 2-yr revenue CAGR
TENB
TENB
Annualised
TENB
8.8%
-2.8%
ACLS

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
ACLS
ACLS
TENB
TENB
Revenue
$238.3M
$262.1M
Net Profit
$34.3M
$1.4M
Gross Margin
47.0%
78.4%
Operating Margin
15.2%
25.0%
Net Margin
14.4%
0.5%
Revenue YoY
-5.6%
9.6%
Net Profit YoY
-31.3%
EPS (diluted)
$1.11
$0.01

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
ACLS
ACLS
TENB
TENB
Q1 26
$262.1M
Q4 25
$238.3M
$260.5M
Q3 25
$213.6M
$252.4M
Q2 25
$194.5M
$247.3M
Q1 25
$192.6M
$239.1M
Q4 24
$252.4M
$235.7M
Q3 24
$256.6M
$227.1M
Q2 24
$256.5M
$221.2M
Net Profit
ACLS
ACLS
TENB
TENB
Q1 26
$1.4M
Q4 25
$34.3M
$-737.0K
Q3 25
$26.0M
$2.3M
Q2 25
$31.4M
$-14.7M
Q1 25
$28.6M
$-22.9M
Q4 24
$50.0M
$1.9M
Q3 24
$48.6M
$-9.2M
Q2 24
$50.9M
$-14.6M
Gross Margin
ACLS
ACLS
TENB
TENB
Q1 26
78.4%
Q4 25
47.0%
78.8%
Q3 25
41.6%
77.5%
Q2 25
44.9%
78.0%
Q1 25
46.1%
78.1%
Q4 24
46.0%
78.2%
Q3 24
42.9%
77.8%
Q2 24
43.8%
77.9%
Operating Margin
ACLS
ACLS
TENB
TENB
Q1 26
25.0%
Q4 25
15.2%
3.4%
Q3 25
11.7%
2.8%
Q2 25
14.9%
-3.0%
Q1 25
15.1%
-7.4%
Q4 24
21.6%
5.5%
Q3 24
18.3%
-0.9%
Q2 24
20.6%
-4.0%
Net Margin
ACLS
ACLS
TENB
TENB
Q1 26
0.5%
Q4 25
14.4%
-0.3%
Q3 25
12.2%
0.9%
Q2 25
16.1%
-5.9%
Q1 25
14.8%
-9.6%
Q4 24
19.8%
0.8%
Q3 24
18.9%
-4.1%
Q2 24
19.8%
-6.6%
EPS (diluted)
ACLS
ACLS
TENB
TENB
Q1 26
$0.01
Q4 25
$1.11
$-0.01
Q3 25
$0.83
$0.02
Q2 25
$0.98
$-0.12
Q1 25
$0.88
$-0.19
Q4 24
$1.54
$0.01
Q3 24
$1.49
$-0.08
Q2 24
$1.55
$-0.12

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
ACLS
ACLS
TENB
TENB
Cash + ST InvestmentsLiquidity on hand
$374.3M
$360.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.0B
$248.2M
Total Assets
$1.4B
$1.6B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACLS
ACLS
TENB
TENB
Q1 26
$360.3M
Q4 25
$374.3M
$402.2M
Q3 25
$449.6M
$383.6M
Q2 25
$549.8M
$386.5M
Q1 25
$587.1M
$460.3M
Q4 24
$571.3M
$577.2M
Q3 24
$579.4M
$548.4M
Q2 24
$548.3M
$487.0M
Stockholders' Equity
ACLS
ACLS
TENB
TENB
Q1 26
$248.2M
Q4 25
$1.0B
$326.4M
Q3 25
$1.0B
$344.4M
Q2 25
$1.0B
$350.7M
Q1 25
$1.0B
$383.2M
Q4 24
$1.0B
$400.0M
Q3 24
$975.6M
$404.6M
Q2 24
$934.9M
$363.6M
Total Assets
ACLS
ACLS
TENB
TENB
Q1 26
$1.6B
Q4 25
$1.4B
$1.7B
Q3 25
$1.4B
$1.7B
Q2 25
$1.3B
$1.7B
Q1 25
$1.3B
$1.7B
Q4 24
$1.3B
$1.7B
Q3 24
$1.3B
$1.6B
Q2 24
$1.3B
$1.6B

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
ACLS
ACLS
TENB
TENB
Operating Cash FlowLast quarter
$-6.6M
$88.0M
Free Cash FlowOCF − Capex
$-8.9M
$82.6M
FCF MarginFCF / Revenue
-3.7%
31.5%
Capex IntensityCapex / Revenue
1.0%
Cash ConversionOCF / Net Profit
-0.19×
62.21×
TTM Free Cash FlowTrailing 4 quarters
$107.0M
$256.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACLS
ACLS
TENB
TENB
Q1 26
$88.0M
Q4 25
$-6.6M
$83.0M
Q3 25
$45.4M
$53.9M
Q2 25
$39.7M
$42.5M
Q1 25
$39.8M
$87.4M
Q4 24
$12.8M
$81.1M
Q3 24
$45.7M
$54.6M
Q2 24
$40.1M
$31.4M
Free Cash Flow
ACLS
ACLS
TENB
TENB
Q1 26
$82.6M
Q4 25
$-8.9M
$82.7M
Q3 25
$43.3M
$53.0M
Q2 25
$37.7M
$38.1M
Q1 25
$34.8M
$80.9M
Q4 24
$8.1M
$78.8M
Q3 24
$41.8M
$53.9M
Q2 24
$38.1M
$30.9M
FCF Margin
ACLS
ACLS
TENB
TENB
Q1 26
31.5%
Q4 25
-3.7%
31.7%
Q3 25
20.3%
21.0%
Q2 25
19.4%
15.4%
Q1 25
18.1%
33.8%
Q4 24
3.2%
33.4%
Q3 24
16.3%
23.7%
Q2 24
14.8%
14.0%
Capex Intensity
ACLS
ACLS
TENB
TENB
Q1 26
Q4 25
1.0%
0.1%
Q3 25
0.9%
0.3%
Q2 25
1.0%
1.8%
Q1 25
2.6%
2.7%
Q4 24
1.8%
1.0%
Q3 24
1.5%
0.3%
Q2 24
0.8%
0.2%
Cash Conversion
ACLS
ACLS
TENB
TENB
Q1 26
62.21×
Q4 25
-0.19×
Q3 25
1.75×
23.83×
Q2 25
1.27×
Q1 25
1.39×
Q4 24
0.26×
43.43×
Q3 24
0.94×
Q2 24
0.79×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

ACLS
ACLS

Products$224.6M94%
Services$13.7M6%

TENB
TENB

Subscription revenue$243.2M93%
Perpetual license and maintenance revenue$10.2M4%
Other$8.7M3%

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