BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4).

Quantum-Si incorporated (QSI) stock price & volume — 10-year historical chart
Investment Thesis • Updated 2026Q1
which fell to $21.6M by 2025Q4.
Quantum-Si incorporated (QSI) revenue, earnings & EPS growth — 3, 5 & 10-year CAGR
Quantum-Si incorporated (QSI) EPS & revenue vs analyst estimates — last 4 quarters
| Quarter | Date | EPS (Act vs Est) | Revenue (Act vs Est) |
|---|---|---|---|
| Q2 2026Latest | May 7, 2026 | $0.10vs $0.12+16.7% | $258,000vs $298,667-13.6% |
| Q2 2026 | Mar 3, 2026 | $0.08vs $0.14+42.9% | $451,000vs $761,900-40.8% |
| Q4 2025 | Nov 5, 2025 | $0.17vs $0.12-41.7% | $552,000vs $599,330-7.9% |
| Q3 2025 | Aug 5, 2025 | $0.16vs $0.16+0.0% | $591,000vs $599,330-1.4% |
Recent stock market news and headlines for Quantum-Si incorporated (QSI)
BRANFORD, Conn.--(BUSINESS WIRE)--Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4).

Key metrics vs top competitors for Quantum-Si incorporated (QSI)
| Company | Price | Market Cap | P/E Ratio | Rev Growth (1Y) | Net Margin | ROE | Div Yield |
|---|---|---|---|---|---|---|---|
| $0.92 | $181.9M | -1.80 | -20.34% | -4160.06% | -46.52% | — | |
| $1.56 | $484.54M | -0.86 | 3.89% | -80.34% | -488.45% | — | |
| $28.31 | $1.46B | -70.78 | 13.79% | -1.98% | -2.61% | — | |
| $94.66 | $6.27B | 69.09 | 15.24% | 9.48% | 5.13% | — | |
| $191.76 | $29.13B | 35.19 | -0.78% | 19.43% | 32.84% | — | |
| $21.02 | $596.98M | -10.67 | 13.83% | -23.04% | -6.74% | — |
Quantum-Si incorporated (QSI) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.
Quantum-Si incorporated (QSI) SEC filings — annual & quarterly reports (10-K, 10-Q)
May 15, 2026·SEC
May 7, 2026·SEC
Mar 3, 2026·SEC
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Quantum-Si incorporated (QSI) stock FAQ — growth, dividends, profitability & financials explained
Quantum-Si incorporated (QSI) reported $1.9M in revenue for fiscal year 2025.
Quantum-Si incorporated (QSI) saw revenue decline by 20.3% over the past year.
Quantum-Si incorporated (QSI) reported a net loss of $103.8M for fiscal year 2025.
Quantum-Si incorporated (QSI) has a return on equity (ROE) of -46.5%. Negative ROE indicates the company is unprofitable.
Quantum-Si incorporated (QSI) had negative free cash flow of $95.7M in fiscal year 2025, likely due to heavy capital investments.