stockNASDAQ: QSI • 12 Months Updates
Quantum-Si Incorporated (QSI) 12 Months
Showing Closing Date Range from Oct 16, 2025 to Oct 16, 2026.
Investor Relations:quantum-si.com
Price & Performance Trajectory
Quantum-Si IncorporatedNASDAQ: QSI
Latest Close
$1.12
12 Months Updates Trajectory
Showing Closing Date Range from Oct 16, 2025 to Oct 16, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesQSI session performance
✓ Latest Close USD
$1.12
Latest session close
$-1.42vs period start
Period Return % % GAIN
-55.91%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$3.1 / $0.69
Period range envelope
$2.41channel spread
Total Volume SHARES
1.42B
Period turnover
Avg: 5.63M/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(252 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| Oct 16, 2026 | $1.12 | -14.50% | $1.33 | $1.10 | 7.59M |
| Oct 15, 2026 | $1.31 | -5.76% | $1.39 | $1.24 | 9.22M |
| Oct 14, 2026 | $1.39 | -1.42% | $1.44 | $1.33 | 5.33M |
| Oct 13, 2026 | $1.41 | +3.68% | $1.46 | $1.31 | 6.24M |
| Oct 12, 2026 | $1.36 | -11.11% | $1.48 | $1.34 | 10.36M |
| Oct 09, 2026 | $1.53 | +25.41% | $1.66 | $1.26 | 40.90M |
| Oct 08, 2026 | $1.22 | -4.69% | $1.30 | $1.20 | 5.85M |
| Oct 07, 2026 | $1.28 | +4.92% | $1.31 | $1.09 | 8.04M |
| Oct 06, 2026 | $1.22 | -4.69% | $1.41 | $1.19 | 8.70M |
| Oct 05, 2026 | $1.28 | -17.42% | $1.53 | $1.26 | 19.18M |
| Oct 02, 2026 | $1.55 | +8.39% | $1.55 | $1.17 | 18.77M |
| Oct 01, 2026 | $1.43 | +33.64% | $1.48 | $1.15 | 33.06M |
| Sep 30, 2026 | $1.07 | +11.69% | $1.12 | $0.96 | 13.84M |
| Sep 29, 2026 | $0.96 | +20.50% | $1.03 | $0.81 | 23.01M |
| Sep 28, 2026 | $0.80 | -4.68% | $0.83 | $0.80 | 1.56M |
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