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

AXCELIS TECHNOLOGIES INC is the larger business by last-quarter revenue ($238.3M vs $194.0M, roughly 1.2× Udemy, Inc.). AXCELIS TECHNOLOGIES INC runs the higher net margin — 14.4% vs -1.2%, a 15.6% gap on every dollar of revenue. On growth, Udemy, Inc. posted the faster year-over-year revenue change (-3.0% vs -5.6%). Udemy, Inc. produced more free cash flow last quarter ($15.0M vs $-8.9M). Over the past eight quarters, Udemy, Inc.'s revenue compounded faster (-0.7% 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.

Udemy is a US-based education technology company. Founded as a massive open online course (MOOC) provider in 2010 by Eren Bali, Gagan Biyani, and Oktay Caglar; the company is based in San Francisco, California, with offices in the United States, Australia, India, Ireland, Mexico and Turkey. Its education platform allows both the creation and sharing of online courses. By early 2025, Udemy claimed to have millions of individual users. Courses are typically video-based and on-demand.

ACLS vs UDMY — Head-to-Head

Bigger by revenue
ACLS
ACLS
1.2× larger
ACLS
$238.3M
$194.0M
UDMY
Growing faster (revenue YoY)
UDMY
UDMY
+2.6% gap
UDMY
-3.0%
-5.6%
ACLS
Higher net margin
ACLS
ACLS
15.6% more per $
ACLS
14.4%
-1.2%
UDMY
More free cash flow
UDMY
UDMY
$23.9M more FCF
UDMY
$15.0M
$-8.9M
ACLS
Faster 2-yr revenue CAGR
UDMY
UDMY
Annualised
UDMY
-0.7%
-2.8%
ACLS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ACLS
ACLS
UDMY
UDMY
Revenue
$238.3M
$194.0M
Net Profit
$34.3M
$-2.3M
Gross Margin
47.0%
66.0%
Operating Margin
15.2%
-1.8%
Net Margin
14.4%
-1.2%
Revenue YoY
-5.6%
-3.0%
Net Profit YoY
-31.3%
76.4%
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
UDMY
UDMY
Q4 25
$238.3M
$194.0M
Q3 25
$213.6M
$195.7M
Q2 25
$194.5M
$199.9M
Q1 25
$192.6M
$200.3M
Q4 24
$252.4M
$199.9M
Q3 24
$256.6M
$195.4M
Q2 24
$256.5M
$194.4M
Q1 24
$252.4M
$196.8M
Net Profit
ACLS
ACLS
UDMY
UDMY
Q4 25
$34.3M
$-2.3M
Q3 25
$26.0M
$1.6M
Q2 25
$31.4M
$6.3M
Q1 25
$28.6M
$-1.8M
Q4 24
$50.0M
$-9.9M
Q3 24
$48.6M
$-25.3M
Q2 24
$50.9M
$-31.8M
Q1 24
$51.6M
$-18.3M
Gross Margin
ACLS
ACLS
UDMY
UDMY
Q4 25
47.0%
66.0%
Q3 25
41.6%
65.9%
Q2 25
44.9%
66.1%
Q1 25
46.1%
64.6%
Q4 24
46.0%
63.6%
Q3 24
42.9%
63.0%
Q2 24
43.8%
62.3%
Q1 24
46.0%
61.2%
Operating Margin
ACLS
ACLS
UDMY
UDMY
Q4 25
15.2%
-1.8%
Q3 25
11.7%
-0.1%
Q2 25
14.9%
2.0%
Q1 25
15.1%
-2.2%
Q4 24
21.6%
-5.8%
Q3 24
18.3%
-15.1%
Q2 24
20.6%
-13.1%
Q1 24
22.4%
-11.5%
Net Margin
ACLS
ACLS
UDMY
UDMY
Q4 25
14.4%
-1.2%
Q3 25
12.2%
0.8%
Q2 25
16.1%
3.1%
Q1 25
14.8%
-0.9%
Q4 24
19.8%
-4.9%
Q3 24
18.9%
-12.9%
Q2 24
19.8%
-16.4%
Q1 24
20.4%
-9.3%
EPS (diluted)
ACLS
ACLS
UDMY
UDMY
Q4 25
$1.11
$-0.01
Q3 25
$0.83
$0.01
Q2 25
$0.98
$0.04
Q1 25
$0.88
$-0.01
Q4 24
$1.54
$-0.06
Q3 24
$1.49
$-0.17
Q2 24
$1.55
$-0.21
Q1 24
$1.57
$-0.12

Balance Sheet & Financial Strength

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

Metric
ACLS
ACLS
UDMY
UDMY
Cash + ST InvestmentsLiquidity on hand
$374.3M
$358.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.0B
$210.5M
Total Assets
$1.4B
$617.7M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACLS
ACLS
UDMY
UDMY
Q4 25
$374.3M
$358.7M
Q3 25
$449.6M
$371.2M
Q2 25
$549.8M
$392.0M
Q1 25
$587.1M
$357.0M
Q4 24
$571.3M
$354.4M
Q3 24
$579.4M
$357.1M
Q2 24
$548.3M
$420.9M
Q1 24
$530.2M
$430.7M
Stockholders' Equity
ACLS
ACLS
UDMY
UDMY
Q4 25
$1.0B
$210.5M
Q3 25
$1.0B
$221.8M
Q2 25
$1.0B
$233.4M
Q1 25
$1.0B
$209.4M
Q4 24
$1.0B
$197.4M
Q3 24
$975.6M
$196.3M
Q2 24
$934.9M
$252.3M
Q1 24
$901.7M
$296.5M
Total Assets
ACLS
ACLS
UDMY
UDMY
Q4 25
$1.4B
$617.7M
Q3 25
$1.4B
$618.9M
Q2 25
$1.3B
$644.0M
Q1 25
$1.3B
$639.0M
Q4 24
$1.3B
$605.6M
Q3 24
$1.3B
$608.9M
Q2 24
$1.3B
$671.9M
Q1 24
$1.3B
$708.5M

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
UDMY
UDMY
Operating Cash FlowLast quarter
$-6.6M
$15.5M
Free Cash FlowOCF − Capex
$-8.9M
$15.0M
FCF MarginFCF / Revenue
-3.7%
7.7%
Capex IntensityCapex / Revenue
1.0%
0.3%
Cash ConversionOCF / Net Profit
-0.19×
TTM Free Cash FlowTrailing 4 quarters
$107.0M
$81.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACLS
ACLS
UDMY
UDMY
Q4 25
$-6.6M
$15.5M
Q3 25
$45.4M
$15.7M
Q2 25
$39.7M
$44.2M
Q1 25
$39.8M
$12.2M
Q4 24
$12.8M
$9.6M
Q3 24
$45.7M
$-6.1M
Q2 24
$40.1M
$28.6M
Q1 24
$42.2M
$21.0M
Free Cash Flow
ACLS
ACLS
UDMY
UDMY
Q4 25
$-8.9M
$15.0M
Q3 25
$43.3M
$15.1M
Q2 25
$37.7M
$41.9M
Q1 25
$34.8M
$9.8M
Q4 24
$8.1M
$8.4M
Q3 24
$41.8M
$-6.7M
Q2 24
$38.1M
$28.2M
Q1 24
$40.6M
$20.8M
FCF Margin
ACLS
ACLS
UDMY
UDMY
Q4 25
-3.7%
7.7%
Q3 25
20.3%
7.7%
Q2 25
19.4%
21.0%
Q1 25
18.1%
4.9%
Q4 24
3.2%
4.2%
Q3 24
16.3%
-3.4%
Q2 24
14.8%
14.5%
Q1 24
16.1%
10.6%
Capex Intensity
ACLS
ACLS
UDMY
UDMY
Q4 25
1.0%
0.3%
Q3 25
0.9%
0.3%
Q2 25
1.0%
1.1%
Q1 25
2.6%
1.2%
Q4 24
1.8%
0.6%
Q3 24
1.5%
0.3%
Q2 24
0.8%
0.2%
Q1 24
0.6%
0.1%
Cash Conversion
ACLS
ACLS
UDMY
UDMY
Q4 25
-0.19×
Q3 25
1.75×
9.58×
Q2 25
1.27×
7.06×
Q1 25
1.39×
Q4 24
0.26×
Q3 24
0.94×
Q2 24
0.79×
Q1 24
0.82×

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%

UDMY
UDMY

Segment breakdown not available.

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