stockNASDAQ: QSI • 6 Months Updates
Quantum-Si Incorporated (QSI) 6 Months
Showing Closing Date Range from Apr 26 to Oct 23, 2026.
Investor Relations:quantum-si.com
Price & Performance Trajectory
Quantum-Si IncorporatedNASDAQ: QSI
Latest Close
$1.40
6 Months Updates Trajectory
Showing Closing Date Range from Apr 26 to Oct 23, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesQSI session performance
✓ Latest Close USD
$1.40
Latest session close
+$0.5vs period start
Period Return % % GAIN
+55.56%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$1.66 / $0.69
Period range envelope
$0.97channel spread
Total Volume SHARES
689.20M
Period turnover
Avg: 5.47M/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(126 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| Oct 23, 2026 | $1.40 | +21.74% | $1.42 | $1.15 | 11.33M |
| Oct 22, 2026 | $1.15 | -6.50% | $1.21 | $1.15 | 3.54M |
| Oct 21, 2026 | $1.23 | +6.03% | $1.23 | $1.16 | 3.34M |
| Oct 20, 2026 | $1.16 | +6.42% | $1.20 | $1.04 | 6.16M |
| Oct 19, 2026 | $1.09 | -2.68% | $1.15 | $1.02 | 8.63M |
| Oct 16, 2026 | $1.12 | -14.50% | $1.33 | $1.10 | 7.63M |
| Oct 15, 2026 | $1.31 | -5.76% | $1.39 | $1.24 | 9.27M |
| Oct 14, 2026 | $1.39 | -1.42% | $1.44 | $1.33 | 5.36M |
| 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 |
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