Quantum-Si Incorporated Class A Common Stock (QSI)
Stock · NASDAQ · Industrials
$1.12as of 10/16/2026
Price chart
Active signals
QSI Signal Track Record
How signals performed across all stocks →What QSI's price did in the 20 trading sessions after each past signal, compared with any 20-session window over the same period.
| Signal | Times | Median 20-session return | Higher after 20 sessions | Last signal |
|---|---|---|---|---|
| Volume Spike | 31 | -5.9% | 29% | September 17, 2026 |
| Bollinger Band Breakout | 22 | -6.4% | 36% | September 25, 2026 |
| Bollinger Band Breakdown | 17 | -1.7% | 41% | July 29, 2026 |
| 200-Day Moving Average TouchActive now | 11 | -13.2% | 9% | September 29, 2026 |
| Any 20-session window (baseline) | -5.6% | 40% |
Computed by MarketWall from daily closing prices since May 18, 2022. Returns are close-to-close and don't include dividends. Past results describe what happened before; they are not a forecast and not investment advice.
About QSI
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 seque…
- Sector
- Industrials
- Industry
- Industrial Machinery/Components
- Employees
- 145
- Website
- www.quantum-si.com/
Fundamentals
- 1-day range
- $1.1$1.33
- Market cap
- $164.41M
- P/E (trailing)
- —
- P/E (forward)
- -3.20
- EPS (trailing)
- $-0.46
- Dividend yield
- —
- Beta
- 3.33
- Avg. volume
- 5.06M
How Quantum-Si Incorporated Class A Common Stock Makes Money
Where the revenue actually goes — FY2025 annual results
Source: 10-K filed Mar 3, 2026 · via SEC EDGAR / Finnhub
Forecasts
3 analyst ratings
Quantum-Si Incorporated Class A Common Stock Competitors
Chosen by industry and closest market cap.
- QSIQuantum-Si Incorporated Class A Common Stock$1.12▼ 14.50%Market cap $164.41MP/E —$0.69$3.1
- OWLTOwlet Inc. Class A Common Stock$4.11▼ 7.43%Market cap $158.11MP/E —$4.19$16.94
- TAYDTaylor Devices Inc. Common Stock$54.07▼ 0.02%Market cap $171.03MP/E 25.78$40.5$90.37
- CHPTChargePoint Holdings Inc. Common Stock$6.91▼ 4.43%Market cap $152.28MP/E —$4.44$12.6
- EMLEastern Company (The) Common Stock$24.31▼ 2.92%Market cap $151.26MP/E 18.86$17.61$29.91
- ESPEspey Mfg. & Electronics Corp. Common Stock$55.58▼ 1.31%Market cap $186.23MP/E 15.11$36$74.77
- HURCHurco Companies Inc. Common Stock$21.2▲ 1.92%Market cap $141.83MP/E —$14.5$24.49
| Symbol | Market cap | P/E ratio | Price | 1D | 52-week range |
|---|---|---|---|---|---|
| QSI Quantum-Si Incorporated Class A Common Stock | $164.41M | — | $1.12 | ▼ 14.50% | $0.69$3.1 |
| OWLT Owlet Inc. Class A Common Stock | $158.11M | — | $4.11 | ▼ 7.43% | $4.19$16.94 |
| TAYD Taylor Devices Inc. Common Stock | $171.03M | 25.78 | $54.07 | ▼ 0.02% | $40.5$90.37 |
| CHPT ChargePoint Holdings Inc. Common Stock | $152.28M | — | $6.91 | ▼ 4.43% | $4.44$12.6 |
| EML Eastern Company (The) Common Stock | $151.26M | 18.86 | $24.31 | ▼ 2.92% | $17.61$29.91 |
| ESP Espey Mfg. & Electronics Corp. Common Stock | $186.23M | 15.11 | $55.58 | ▼ 1.31% | $36$74.77 |
| HURC Hurco Companies Inc. Common Stock | $141.83M | — | $21.2 | ▲ 1.92% | $14.5$24.49 |
P/E shows — for peers not currently carrying a live signal of their own.
Latest news
- Quantum-Si To Provide Business Update And Report Q3 2026 Results On November 5benzinga · 10/16/2026
- These stocks are moving in today's sessionChartMill · 10/9/2026
- Let's have a look at the top gainers and losers in the middle of the day of today's session.ChartMill · 10/9/2026
- Quantum-Si Stock Booms: What's Going On?Benzinga · 10/9/2026
- BC-Most Active StocksYahoo · 10/9/2026
- 12 Health Care Stocks Moving In Friday's Intraday SessionBenzinga · 10/9/2026
- Quantum-Si Demonstrates Detection of 19 Amino Acids in Proteus™ Development ProgramYahoo · 10/8/2026
- Quantum-Si Demonstrates Detection of 19 Amino Acids in Proteus Development Program; Co Is Now Working To Deploy That Capability Into A Developmental Sequencing Kit For Routine Use On Integrated Proteus InstrumentsBenzinga · 10/8/2026
- These stocks have an unusual volume in today's sessionChartMill · 10/6/2026
Insider Activity
Insider Actions →- Jeffrey Alan Hawkins · September 22, 2026 · Sale9.7K @ $0.7608
- Christian LaPointe · September 22, 2026 · Sale4.7K @ $0.7608
- Jeffry R. Keyes · September 22, 2026 · Sale2.5K @ $0.7608
- Christian LaPointe · September 21, 2026 · Sale9.8K @ $0.7558
- Jeffry R. Keyes · September 21, 2026 · Sale5.2K @ $0.7558
- Jeffrey Alan Hawkins · September 21, 2026 · Sale20.1K @ $0.7558
- Christian LaPointe · June 23, 2026 · Sale7.8K @ $0.899
- John S. Vieceli · June 23, 2026 · Sale15.1K @ $0.899
- Jeffry R. Keyes · June 23, 2026 · Sale4.1K @ $0.899
- Jeffrey Alan Hawkins · June 23, 2026 · Sale11.3K @ $0.899
- Jeffrey Alan Hawkins · June 22, 2026 · Sale11.3K @ $0.9574
- Christian LaPointe · June 22, 2026 · Sale7.8K @ $0.9574
- John S. Vieceli · June 22, 2026 · Sale15.1K @ $0.9574
- Jeffry R. Keyes · June 22, 2026 · Sale4.1K @ $0.9574
- Jafri Amir · May 18, 2026 · Grant251.2K
Institutional Ownership
March 31, 2026
- Total shares held
- 61.29M
- Total value held
- $47.33M
- Institutional holders
- 153
- Unknown13.41M
- Unknown7.02M
- Unknown6.88M
- Unknown4.39M
- Unknown4.39M
- Unknown3.84M
- Unknown3.77M
- Unknown2.39M
- Unknown1.94M
- Unknown1.70M
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AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
September 27, 2026
QSI impacted by regional tensions in Gulf markets
Saudi and Gulf stocks recently declined after the Houthis claimed attacks on Riyadh. This regional instability may affect sentiment for Quantum-Si Incorporated, which operates in the Middle East. The stock is currently trading within its 52-week range, with technical indicators showing a breakout signal.
QSI impacted by regional tensions in Gulf markets. Saudi and Gulf stocks recently declined after the Houthis claimed attacks on Riyadh. This regional instability may affect sentiment for Quantum-Si Incorporated, which operates in the Middle East. The stock is currently trading within its 52-week range, with technical indicators showing a breakout signal.