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Side-by-side financial comparison of AXCELIS TECHNOLOGIES INC (ACLS) and OSI SYSTEMS INC (OSIS). Click either name above to swap in a different company.

OSI SYSTEMS INC is the larger business by last-quarter revenue ($464.1M vs $238.3M, roughly 1.9× AXCELIS TECHNOLOGIES INC). AXCELIS TECHNOLOGIES INC runs the higher net margin — 14.4% vs 8.3%, a 6.1% gap on every dollar of revenue. On growth, OSI SYSTEMS INC posted the faster year-over-year revenue change (10.5% vs -5.6%). OSI SYSTEMS INC produced more free cash flow last quarter ($55.5M vs $-8.9M). Over the past eight quarters, OSI SYSTEMS INC's revenue compounded faster (7.0% 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.

OSI Systems, Inc. is an American company based in California that develops and markets security and inspection systems such as airport security X-ray machines and metal detectors, medical monitoring and anesthesia systems, and optoelectronic devices. As of June 2010, the company employs approximately 3,180 personnel globally and includes subsidiary companies Spacelabs Healthcare, Rapiscan Systems and OSI Optoelectronics.

ACLS vs OSIS — Head-to-Head

Bigger by revenue
OSIS
OSIS
1.9× larger
OSIS
$464.1M
$238.3M
ACLS
Growing faster (revenue YoY)
OSIS
OSIS
+16.1% gap
OSIS
10.5%
-5.6%
ACLS
Higher net margin
ACLS
ACLS
6.1% more per $
ACLS
14.4%
8.3%
OSIS
More free cash flow
OSIS
OSIS
$64.4M more FCF
OSIS
$55.5M
$-8.9M
ACLS
Faster 2-yr revenue CAGR
OSIS
OSIS
Annualised
OSIS
7.0%
-2.8%
ACLS

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
ACLS
ACLS
OSIS
OSIS
Revenue
$238.3M
$464.1M
Net Profit
$34.3M
$38.7M
Gross Margin
47.0%
32.7%
Operating Margin
15.2%
12.7%
Net Margin
14.4%
8.3%
Revenue YoY
-5.6%
10.5%
Net Profit YoY
-31.3%
2.3%
EPS (diluted)
$1.11
$2.22

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
OSIS
OSIS
Q4 25
$238.3M
$464.1M
Q3 25
$213.6M
$384.6M
Q2 25
$194.5M
$505.0M
Q1 25
$192.6M
$444.4M
Q4 24
$252.4M
$419.8M
Q3 24
$256.6M
$344.0M
Q2 24
$256.5M
$480.9M
Q1 24
$252.4M
$405.4M
Net Profit
ACLS
ACLS
OSIS
OSIS
Q4 25
$34.3M
$38.7M
Q3 25
$26.0M
$20.6M
Q2 25
$31.4M
$52.7M
Q1 25
$28.6M
$41.1M
Q4 24
$50.0M
$37.8M
Q3 24
$48.6M
$17.9M
Q2 24
$50.9M
$44.7M
Q1 24
$51.6M
$34.0M
Gross Margin
ACLS
ACLS
OSIS
OSIS
Q4 25
47.0%
32.7%
Q3 25
41.6%
32.0%
Q2 25
44.9%
33.3%
Q1 25
46.1%
33.8%
Q4 24
46.0%
35.1%
Q3 24
42.9%
35.3%
Q2 24
43.8%
32.1%
Q1 24
46.0%
33.6%
Operating Margin
ACLS
ACLS
OSIS
OSIS
Q4 25
15.2%
12.7%
Q3 25
11.7%
8.6%
Q2 25
14.9%
14.5%
Q1 25
15.1%
12.7%
Q4 24
21.6%
13.8%
Q3 24
18.3%
8.8%
Q2 24
20.6%
13.1%
Q1 24
22.4%
12.7%
Net Margin
ACLS
ACLS
OSIS
OSIS
Q4 25
14.4%
8.3%
Q3 25
12.2%
5.3%
Q2 25
16.1%
10.4%
Q1 25
14.8%
9.3%
Q4 24
19.8%
9.0%
Q3 24
18.9%
5.2%
Q2 24
19.8%
9.3%
Q1 24
20.4%
8.4%
EPS (diluted)
ACLS
ACLS
OSIS
OSIS
Q4 25
$1.11
$2.22
Q3 25
$0.83
$1.18
Q2 25
$0.98
$3.04
Q1 25
$0.88
$2.40
Q4 24
$1.54
$2.22
Q3 24
$1.49
$1.05
Q2 24
$1.55
$2.57
Q1 24
$1.57
$1.95

Balance Sheet & Financial Strength

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

Metric
ACLS
ACLS
OSIS
OSIS
Cash + ST InvestmentsLiquidity on hand
$374.3M
$336.7M
Total DebtLower is stronger
$1.0B
Stockholders' EquityBook value
$1.0B
$845.5M
Total Assets
$1.4B
$2.5B
Debt / EquityLower = less leverage
1.19×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACLS
ACLS
OSIS
OSIS
Q4 25
$374.3M
$336.7M
Q3 25
$449.6M
$124.4M
Q2 25
$549.8M
$106.4M
Q1 25
$587.1M
$95.8M
Q4 24
$571.3M
$101.6M
Q3 24
$579.4M
$85.1M
Q2 24
$548.3M
$95.4M
Q1 24
$530.2M
$101.4M
Total Debt
ACLS
ACLS
OSIS
OSIS
Q4 25
$1.0B
Q3 25
$442.2M
Q2 25
$471.6M
Q1 25
$473.2M
Q4 24
$474.8M
Q3 24
$476.3M
Q2 24
$137.6M
Q1 24
Stockholders' Equity
ACLS
ACLS
OSIS
OSIS
Q4 25
$1.0B
$845.5M
Q3 25
$1.0B
$946.0M
Q2 25
$1.0B
$951.1M
Q1 25
$1.0B
$879.3M
Q4 24
$1.0B
$825.8M
Q3 24
$975.6M
$786.5M
Q2 24
$934.9M
$863.5M
Q1 24
$901.7M
$813.4M
Total Assets
ACLS
ACLS
OSIS
OSIS
Q4 25
$1.4B
$2.5B
Q3 25
$1.4B
$2.3B
Q2 25
$1.3B
$2.2B
Q1 25
$1.3B
$2.1B
Q4 24
$1.3B
$2.1B
Q3 24
$1.3B
$2.1B
Q2 24
$1.3B
$1.9B
Q1 24
$1.3B
$1.8B
Debt / Equity
ACLS
ACLS
OSIS
OSIS
Q4 25
1.19×
Q3 25
0.47×
Q2 25
0.50×
Q1 25
0.54×
Q4 24
0.57×
Q3 24
0.61×
Q2 24
0.16×
Q1 24

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
OSIS
OSIS
Operating Cash FlowLast quarter
$-6.6M
$62.2M
Free Cash FlowOCF − Capex
$-8.9M
$55.5M
FCF MarginFCF / Revenue
-3.7%
12.0%
Capex IntensityCapex / Revenue
1.0%
1.4%
Cash ConversionOCF / Net Profit
-0.19×
1.61×
TTM Free Cash FlowTrailing 4 quarters
$107.0M
$137.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACLS
ACLS
OSIS
OSIS
Q4 25
$-6.6M
$62.2M
Q3 25
$45.4M
$17.1M
Q2 25
$39.7M
$562.0K
Q1 25
$39.8M
$81.6M
Q4 24
$12.8M
$52.5M
Q3 24
$45.7M
$-37.2M
Q2 24
$40.1M
$-29.0M
Q1 24
$42.2M
$-52.1M
Free Cash Flow
ACLS
ACLS
OSIS
OSIS
Q4 25
$-8.9M
$55.5M
Q3 25
$43.3M
$10.1M
Q2 25
$37.7M
$-5.6M
Q1 25
$34.8M
$77.1M
Q4 24
$8.1M
$47.1M
Q3 24
$41.8M
$-44.9M
Q2 24
$38.1M
$-37.5M
Q1 24
$40.6M
$-57.0M
FCF Margin
ACLS
ACLS
OSIS
OSIS
Q4 25
-3.7%
12.0%
Q3 25
20.3%
2.6%
Q2 25
19.4%
-1.1%
Q1 25
18.1%
17.4%
Q4 24
3.2%
11.2%
Q3 24
16.3%
-13.0%
Q2 24
14.8%
-7.8%
Q1 24
16.1%
-14.1%
Capex Intensity
ACLS
ACLS
OSIS
OSIS
Q4 25
1.0%
1.4%
Q3 25
0.9%
1.8%
Q2 25
1.0%
1.2%
Q1 25
2.6%
1.0%
Q4 24
1.8%
1.3%
Q3 24
1.5%
2.2%
Q2 24
0.8%
1.8%
Q1 24
0.6%
1.2%
Cash Conversion
ACLS
ACLS
OSIS
OSIS
Q4 25
-0.19×
1.61×
Q3 25
1.75×
0.83×
Q2 25
1.27×
0.01×
Q1 25
1.39×
1.98×
Q4 24
0.26×
1.39×
Q3 24
0.94×
-2.07×
Q2 24
0.79×
-0.65×
Q1 24
0.82×
-1.53×

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%

OSIS
OSIS

Security Division$334.7M72%
Optoelectronics And Manufacturing Division$92.8M20%
Healthcare Division$36.5M8%

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