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Side-by-side financial comparison of Ambiq Micro, Inc. (AMBQ) and AMTECH SYSTEMS INC (ASYS). Click either name above to swap in a different company.

AMTECH SYSTEMS INC is the larger business by last-quarter revenue ($19.0M vs $18.2M, roughly 1.0× Ambiq Micro, Inc.). AMTECH SYSTEMS INC runs the higher net margin — 0.6% vs -49.6%, a 50.1% gap on every dollar of revenue.

Ambiq Micro, Inc. is an American semiconductor company specializing in low-power microcontrollers and systems-on-chip, including products for devices smartwatches, medical devices, and sensors. Founded in 2010 by University of Michigan researchers Scott Hanson, David Blaauw, and Dennis Sylvester, the company is headquartered in Austin, Texas. Its products employ Subthreshold Power Optimized Technology (SPOT) to reduce energy consumption and enable on-device edge AI. In 2025, Ambiq went public...

Amtech Systems Inc is a global manufacturer of advanced thermal processing and automation equipment primarily serving the semiconductor, solar photovoltaic, and LED production sectors. Its product portfolio includes soldering, diffusion, and deposition systems, with key markets spanning North America, East Asia, and Western Europe, catering to leading electronic component and clean energy manufacturing clients.

AMBQ vs ASYS — Head-to-Head

Bigger by revenue
ASYS
ASYS
1.0× larger
ASYS
$19.0M
$18.2M
AMBQ
Higher net margin
ASYS
ASYS
50.1% more per $
ASYS
0.6%
-49.6%
AMBQ

Income Statement — Q3 FY2025 vs Q1 FY2026

Metric
AMBQ
AMBQ
ASYS
ASYS
Revenue
$18.2M
$19.0M
Net Profit
$-9.0M
$108.0K
Gross Margin
42.3%
44.8%
Operating Margin
-55.3%
4.1%
Net Margin
-49.6%
0.6%
Revenue YoY
-22.2%
Net Profit YoY
-65.4%
EPS (diluted)
$-0.72
$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
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$19.0M
Q3 25
$18.2M
$19.8M
Q2 25
$17.9M
$19.6M
Q1 25
$15.6M
Q4 24
$24.4M
Q3 24
$24.1M
Q2 24
$26.7M
Q1 24
$25.4M
Net Profit
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$108.0K
Q3 25
$-9.0M
$1.1M
Q2 25
$-8.5M
$106.0K
Q1 25
$-31.8M
Q4 24
$312.0K
Q3 24
$-536.0K
Q2 24
$438.0K
Q1 24
$970.0K
Gross Margin
AMBQ
AMBQ
ASYS
ASYS
Q4 25
44.8%
Q3 25
42.3%
44.4%
Q2 25
40.1%
46.7%
Q1 25
-2.1%
Q4 24
38.4%
Q3 24
40.7%
Q2 24
36.5%
Q1 24
33.2%
Operating Margin
AMBQ
AMBQ
ASYS
ASYS
Q4 25
4.1%
Q3 25
-55.3%
9.3%
Q2 25
-49.2%
4.7%
Q1 25
-202.7%
Q4 24
1.4%
Q3 24
0.1%
Q2 24
3.1%
Q1 24
5.4%
Net Margin
AMBQ
AMBQ
ASYS
ASYS
Q4 25
0.6%
Q3 25
-49.6%
5.4%
Q2 25
-47.5%
0.5%
Q1 25
-204.2%
Q4 24
1.3%
Q3 24
-2.2%
Q2 24
1.6%
Q1 24
3.8%
EPS (diluted)
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$0.01
Q3 25
$-0.72
$0.08
Q2 25
$-18.89
$0.01
Q1 25
$-2.23
Q4 24
$0.02
Q3 24
$-0.04
Q2 24
$0.03
Q1 24
$0.07

Balance Sheet & Financial Strength

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

Metric
AMBQ
AMBQ
ASYS
ASYS
Cash + ST InvestmentsLiquidity on hand
$146.5M
$22.1M
Total DebtLower is stronger
$162.0K
Stockholders' EquityBook value
$169.8M
$54.1M
Total Assets
$186.7M
$94.1M
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$22.1M
Q3 25
$146.5M
$17.9M
Q2 25
$47.5M
$15.6M
Q1 25
$13.4M
Q4 24
$13.2M
Q3 24
$11.1M
Q2 24
$13.2M
Q1 24
$13.0M
Total Debt
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$162.0K
Q3 25
$168.0K
Q2 25
$127.0K
Q1 25
$135.0K
Q4 24
$161.0K
Q3 24
$189.0K
Q2 24
$177.0K
Q1 24
$65.0K
Stockholders' Equity
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$54.1M
Q3 25
$169.8M
$53.4M
Q2 25
$-307.3M
$51.7M
Q1 25
$51.0M
Q4 24
$82.4M
Q3 24
$82.4M
Q2 24
$81.7M
Q1 24
$80.9M
Total Assets
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$94.1M
Q3 25
$186.7M
$92.9M
Q2 25
$89.2M
$89.5M
Q1 25
$83.4M
Q4 24
$117.8M
Q3 24
$119.3M
Q2 24
$127.1M
Q1 24
$116.5M
Debt / Equity
AMBQ
AMBQ
ASYS
ASYS
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
0.00×
Q3 24
0.00×
Q2 24
0.00×
Q1 24
0.00×

Cash Flow & Capital Efficiency

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

Metric
AMBQ
AMBQ
ASYS
ASYS
Operating Cash FlowLast quarter
$-5.0M
$4.1M
Free Cash FlowOCF − Capex
$3.8M
FCF MarginFCF / Revenue
20.2%
Capex IntensityCapex / Revenue
1.5%
Cash ConversionOCF / Net Profit
37.99×
TTM Free Cash FlowTrailing 4 quarters
$8.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$4.1M
Q3 25
$-5.0M
$2.3M
Q2 25
$-10.5M
$2.5M
Q1 25
$210.0K
Q4 24
$2.9M
Q3 24
$879.0K
Q2 24
$3.7M
Q1 24
$336.0K
Free Cash Flow
AMBQ
AMBQ
ASYS
ASYS
Q4 25
$3.8M
Q3 25
$2.0M
Q2 25
$2.0M
Q1 25
$201.0K
Q4 24
$2.7M
Q3 24
$447.0K
Q2 24
$322.0K
Q1 24
$-884.0K
FCF Margin
AMBQ
AMBQ
ASYS
ASYS
Q4 25
20.2%
Q3 25
10.2%
Q2 25
10.1%
Q1 25
1.3%
Q4 24
11.2%
Q3 24
1.9%
Q2 24
1.2%
Q1 24
-3.5%
Capex Intensity
AMBQ
AMBQ
ASYS
ASYS
Q4 25
1.5%
Q3 25
1.2%
Q2 25
2.8%
Q1 25
0.1%
Q4 24
0.6%
Q3 24
1.8%
Q2 24
12.5%
Q1 24
4.8%
Cash Conversion
AMBQ
AMBQ
ASYS
ASYS
Q4 25
37.99×
Q3 25
2.12×
Q2 25
23.89×
Q1 25
Q4 24
9.19×
Q3 24
Q2 24
8.35×
Q1 24
0.35×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AMBQ
AMBQ

Customer Concentration Risk$16.2M89%
Other$2.0M11%

ASYS
ASYS

Thermal Processing Solutions$14.0M74%
Semiconductor Fabrication Solutions$5.0M26%

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