Amtech Systems (ASYS) vs Quantum-Si (QSI)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Amtech Systems (ASYS) has outperformed Quantum-Si (QSI) over the past year, gaining 65.9% versus a loss of 31.1%. Over five years, ASYS leads with a +38.7% price change compared with -85.8% for QSI. Amtech Systems is the larger company by market cap ($283.8 million vs $267.0 million), about 1.1 times the size.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | ASYS | QSI |
|---|---|---|
| Share price | $16.21 | $1.22 |
| Market cap | $283.81M | $267.04M |
| 1-day change | -7.90% | -4.69% |
| YTD return | +29.16% | +10.91% |
| 1-year return | +65.92% | -31.07% |
| 5-year return | +38.67% | -85.81% |
| P/E ratio (TTM) | 60.04 | — |
| Forward P/E | 12.97 | — |
| EPS (TTM) | $0.27 | $-0.45 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $25.71 | $3.10 |
| 52-week low | $6.75 | $0.69 |
| Distance from 52-week high | -36.95% | -60.65% |
| Analyst consensus | none | buy |
| Avg. price target upside | +35.72% | +86.89% |
| Average volume | 362.26K | 4.15M |
| Shares outstanding | 17.51M | 198.95M |
| Employees | 264 | 145 |
| Sector | Technology | Industrials |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- ASYS has outperformed QSI by 97.0 percentage points over the past year.
- The two companies sit in different sectors: Amtech Systems in Technology and Quantum-Si in Industrials.
About Amtech Systems
ASYS stock →Amtech Systems, Inc., together with its subsidiaries, manufactures and sells capital equipment and related consumables for use in fabricating and packaging semiconductor devices in the United States, Canada, Mexico, China, Malaysia, Taiwan, Singapore, the Czech Republic, Austria, Hungary, the United Kingdom, Germany, and internationally. It operates through Thermal Processing Solutions and Semiconductor Fabrication Solutions segments.
Technology · Industrial Machinery/Components · 264 employees
About Quantum-Si
QSI stock →Quantum-Si incorporated, a life sciences company, develops proprietary, universal, and single-molecule detection platform applied to proteomics to enable next-gen protein sequencing (NGPS). The company offers Platinum and Platinum Pro NGPS instruments for single-molecule, amino acid level resolution, and automated data analysis; library preparation kits to prepare a customer's protein sample for sequencing; and sequencing kits, which contain the reagents and consumables used to perform NGPS.
Industrials · Industrial Machinery/Components · 145 employees
ASYS vs QSI FAQ
Which is bigger, Amtech Systems or Quantum-Si?
Amtech Systems (ASYS) is larger, with a market capitalization of $283.81M compared with $267.04M for Quantum-Si (QSI).
Which stock has performed better over the past year, ASYS or QSI?
ASYS returned +65.92% over the past 12 months, compared with -31.07% for QSI (price return, excluding dividends). Past performance does not predict future results.
Are Amtech Systems and Quantum-Si in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Technology sector.