NET Power (NPWR) 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
Quantum-Si (QSI) has outperformed NET Power (NPWR) over the past year, losing 31.1% versus a loss of 71.4%. Over five years, QSI leads with a -85.8% price change compared with -87.4% for NPWR. Quantum-Si is the larger company by market cap ($334.9 million vs $108.8 million), about 3.1 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 | NPWR | QSI |
|---|---|---|
| Share price | $1.23 | $1.53 |
| Market cap | $108.83M | $334.89M |
| 1-day change | -0.81% | +25.41% |
| YTD return | -45.61% | +10.91% |
| 1-year return | -71.43% | -31.07% |
| 5-year return | -87.45% | -85.81% |
| EPS (TTM) | $-6.45 | $-0.45 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $5.20 | $3.10 |
| 52-week low | $1.21 | $0.69 |
| Distance from 52-week high | -76.35% | -50.65% |
| Analyst consensus | none | buy |
| Avg. price target upside | +131.71% | +49.02% |
| Average volume | 751.30K | 4.15M |
| Shares outstanding | 88.48M | 198.95M |
| Employees | 54 | 145 |
| Sector | Energy | 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
- Quantum-Si is about 3.1 times larger than NET Power by market value ($334.89M vs $108.83M).
- QSI has outperformed NPWR by 40.4 percentage points over the past year.
- The two companies sit in different sectors: NET Power in Energy and Quantum-Si in Industrials.
About NET Power
NPWR stock →NET Power Inc. operates as an energy technology company in the United States.
Energy · Industrial Machinery/Components · 54 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
NPWR vs QSI FAQ
Which is bigger, NET Power or Quantum-Si?
Quantum-Si (QSI) is larger, with a market capitalization of $334.89M compared with $108.83M for NET Power (NPWR).
Which stock has performed better over the past year, NPWR or QSI?
QSI returned -31.07% over the past 12 months, compared with -71.43% for NPWR (price return, excluding dividends). Past performance does not predict future results.
Are NET Power and Quantum-Si in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Energy sector.