Quantum-Si Incorporated Class A QSI
NASDAQ · United States · Technology Services
$1.40+0.32 (+30.37%)
Market open· · USD · Data may be delayed
Prices may be delayed and are for informational purposes only - not investment advice.
Market open· · USD · Data may be delayed
Prices may be delayed and are for informational purposes only - not investment advice.
| Date | Close | Change | Open | High | Low | Volume |
|---|---|---|---|---|---|---|
| 2026-10-01 | $1.39 | +29.99% | $1.20 | $1.41 | $1.15 | 23.01M |
| 2026-09-30 | $1.07 | +11.69% | $0.96 | $1.12 | $0.96 | 13.07M |
| 2026-09-29 | $0.96 | +20.50% | $0.81 | $1.03 | $0.81 | 23.01M |
| 2026-09-28 | $0.80 | -4.68% | $0.82 | $0.83 | $0.80 | 1.56M |
| 2026-09-25 | $0.83 | +6.24% | $0.79 | $0.84 | $0.78 | 2.59M |
| 2026-09-24 | $0.79 | +3.43% | $0.75 | $0.80 | $0.74 | 1.59M |
| 2026-09-23 | $0.76 | -3.31% | $0.79 | $0.81 | $0.75 | 1.48M |
| 2026-09-22 | $0.79 | +3.84% | $0.76 | $0.79 | $0.75 | 2.43M |
| 2026-09-21 | $0.76 | +1.48% | $0.76 | $0.77 | $0.75 | 1.12M |
| 2026-09-18 | $0.75 | -3.25% | $0.79 | $0.80 | $0.74 | 1.71M |
| 2026-09-17 | $0.77 | +5.48% | $0.75 | $0.80 | $0.75 | 2.82M |
| 2026-09-16 | $0.73 | +1.39% | $0.72 | $0.75 | $0.72 | 909.70K |
| 2026-09-15 | $0.72 | -0.69% | $0.72 | $0.74 | $0.72 | 1.16M |
| 2026-09-14 | $0.73 | -2.03% | $0.73 | $0.75 | $0.72 | 1.39M |
| 2026-09-11 | $0.74 | +0.14% | $0.74 | $0.75 | $0.74 | 1.07M |
| 2026-09-10 | $0.74 | -1.47% | $0.75 | $0.75 | $0.73 | 1.71M |
| 2026-09-09 | $0.75 | -1.32% | $0.76 | $0.77 | $0.75 | 1.44M |
| 2026-09-08 | $0.76 | -0.78% | $0.77 | $0.79 | $0.76 | 1.05M |
| 2026-09-04 | $0.77 | +0.66% | $0.76 | $0.77 | $0.76 | 897.30K |
| 2026-09-03 | $0.76 | 0.00% | $0.77 | $0.79 | $0.76 | 980.00K |
| 2026-09-02 | $0.76 | +0.53% | $0.76 | $0.79 | $0.75 | 1.62M |
| 2026-09-01 | $0.76 | -1.17% | $0.75 | $0.78 | $0.75 | 1.50M |
| 2026-08-31 | $0.77 | -1.79% | $0.78 | $0.78 | $0.76 | 1.13M |
| 2026-08-28 | $0.78 | -2.86% | $0.82 | $0.82 | $0.77 | 2.41M |
| 2026-08-27 | $0.80 | +1.52% | $0.79 | $0.83 | $0.79 | 1.37M |
| 2026-08-26 | $0.79 | -6.61% | $0.85 | $0.86 | $0.79 | 2.66M |
| 2026-08-25 | $0.85 | +10.14% | $0.79 | $0.86 | $0.78 | 4.37M |
| 2026-08-24 | $0.77 | -7.90% | $0.80 | $0.83 | $0.75 | 3.85M |
| 2026-08-21 | $0.83 | +7.05% | $0.79 | $0.93 | $0.78 | 7.83M |
| 2026-08-20 | $0.78 | +1.30% | $0.77 | $0.81 | $0.77 | 3.23M |
| 2026-08-19 | $0.77 | +5.77% | $0.72 | $0.79 | $0.72 | 2.86M |
| 2026-08-18 | $0.73 | -2.15% | $0.73 | $0.74 | $0.72 | 1.52M |
| 2026-08-17 | $0.74 | +0.54% | $0.74 | $0.80 | $0.74 | 2.43M |
| 2026-08-14 | $0.74 | -6.33% | $0.75 | $0.77 | $0.71 | 7.00M |
| 2026-08-13 | $0.79 | -5.62% | $0.86 | $0.91 | $0.79 | 4.38M |
| 2026-08-12 | $0.84 | +2.07% | $0.83 | $0.87 | $0.83 | 1.50M |
| 2026-08-11 | $0.82 | +3.80% | $0.80 | $0.85 | $0.80 | 2.06M |
| 2026-08-10 | $0.79 | -2.95% | $0.82 | $0.84 | $0.79 | 2.43M |
| 2026-08-07 | $0.81 | +7.81% | $0.76 | $0.83 | $0.76 | 2.73M |
| 2026-08-06 | $0.75 | -0.26% | $0.75 | $0.78 | $0.75 | 1.49M |
| 2026-08-05 | $0.76 | -1.05% | $0.77 | $0.79 | $0.76 | 2.48M |
| 2026-08-04 | $0.76 | +2.55% | $0.76 | $0.80 | $0.76 | 3.99M |
| 2026-08-03 | $0.75 | +4.78% | $0.72 | $0.76 | $0.71 | 2.71M |
| 2026-07-31 | $0.71 | -1.11% | $0.73 | $0.75 | $0.71 | 1.84M |
| 2026-07-30 | $0.72 | +2.56% | $0.73 | $0.74 | $0.69 | 3.55M |
| 2026-07-29 | $0.70 | -7.75% | $0.76 | $0.78 | $0.70 | 4.10M |
| 2026-07-28 | $0.76 | -2.81% | $0.77 | $0.78 | $0.74 | 3.27M |
| 2026-07-27 | $0.78 | +1.69% | $0.79 | $0.81 | $0.77 | 1.09M |
| 2026-07-24 | $0.77 | -2.53% | $0.79 | $0.80 | $0.76 | 2.59M |
| 2026-07-23 | $0.79 | -1.25% | $0.79 | $0.83 | $0.78 | 3.29M |
| 2026-07-22 | $0.80 | -4.31% | $0.81 | $0.85 | $0.80 | 2.84M |
| 2026-07-21 | $0.84 | +2.33% | $0.82 | $0.85 | $0.82 | 1.47M |
| 2026-07-20 | $0.82 | -0.61% | $0.83 | $0.84 | $0.81 | 1.50M |
| 2026-07-17 | $0.82 | +0.37% | $0.82 | $0.85 | $0.80 | 2.30M |
| 2026-07-16 | $0.82 | -4.99% | $0.85 | $0.86 | $0.81 | 3.74M |
| 2026-07-15 | $0.86 | -0.46% | $0.87 | $0.90 | $0.86 | 2.26M |
| 2026-07-14 | $0.87 | -0.35% | $0.87 | $0.90 | $0.86 | 1.21M |
| 2026-07-13 | $0.87 | -1.59% | $0.88 | $0.88 | $0.85 | 3.53M |
| 2026-07-10 | $0.88 | -8.21% | $0.95 | $0.95 | $0.88 | 2.91M |
| 2026-07-09 | $0.96 | +5.37% | $0.91 | $0.97 | $0.90 | 2.58M |
| 2026-07-08 | $0.91 | -0.76% | $0.89 | $0.93 | $0.89 | 3.42M |
| 2026-07-07 | $0.92 | -3.36% | $0.94 | $0.95 | $0.90 | 3.71M |
| 2026-07-06 | $0.95 | +2.37% | $0.93 | $0.98 | $0.93 | 2.63M |
| 2026-07-02 | $0.93 | +0.65% | $0.93 | $1.01 | $0.92 | 6.03M |
| 2026-07-01 | $0.92 | +4.41% | $0.88 | $0.96 | $0.88 | 5.51M |
| 2026-06-30 | $0.88 | -0.45% | $0.88 | $0.92 | $0.87 | 3.19M |
| 2026-06-29 | $0.89 | +3.98% | $0.86 | $0.91 | $0.85 | 3.99M |
| 2026-06-26 | $0.86 | -0.23% | $0.84 | $0.89 | $0.80 | 18.91M |
| 2026-06-25 | $0.86 | +3.63% | $0.85 | $0.89 | $0.78 | 8.41M |
| 2026-06-24 | $0.83 | -6.02% | $0.90 | $0.92 | $0.82 | 5.13M |
| 2026-06-23 | $0.88 | -4.45% | $0.91 | $0.93 | $0.88 | 5.55M |
| 2026-06-22 | $0.92 | -7.81% | $1.00 | $1.07 | $0.92 | 5.93M |
| 2026-06-18 | $1.00 | +5.83% | $0.96 | $1.03 | $0.96 | 6.34M |
| 2026-06-17 | $0.94 | -1.05% | $0.97 | $1.00 | $0.93 | 3.47M |
| 2026-06-16 | $0.95 | -3.54% | $1.00 | $1.00 | $0.94 | 3.73M |
| 2026-06-15 | $0.99 | +4.44% | $1.01 | $1.05 | $0.98 | 9.42M |
| 2026-06-12 | $0.95 | -2.67% | $0.99 | $1.01 | $0.93 | 3.30M |
| 2026-06-11 | $0.97 | +2.75% | $0.95 | $0.99 | $0.92 | 3.44M |
| 2026-06-10 | $0.95 | -4.05% | $0.98 | $1.02 | $0.95 | 3.45M |
| 2026-06-09 | $0.99 | -6.89% | $1.06 | $1.08 | $0.94 | 8.12M |
| 2026-06-08 | $1.06 | +0.95% | $1.09 | $1.10 | $1.03 | 4.31M |
| 2026-06-05 | $1.05 | -17.97% | $1.25 | $1.25 | $1.01 | 8.91M |
| 2026-06-04 | $1.28 | +7.56% | $1.19 | $1.30 | $1.17 | 9.56M |
| 2026-06-03 | $1.19 | -4.03% | $1.22 | $1.22 | $1.16 | 7.95M |
| 2026-06-02 | $1.24 | +5.08% | $1.17 | $1.26 | $1.16 | 7.38M |
| 2026-06-01 | $1.18 | -0.84% | $1.17 | $1.25 | $1.12 | 7.41M |
| 2026-05-29 | $1.19 | -0.83% | $1.21 | $1.21 | $1.11 | 7.29M |
| 2026-05-28 | $1.20 | +6.19% | $1.11 | $1.21 | $1.08 | 7.41M |
| 2026-05-27 | $1.13 | +4.63% | $1.06 | $1.18 | $1.03 | 8.57M |
| 2026-05-26 | $1.08 | +1.89% | $1.08 | $1.09 | $1.01 | 7.55M |