Quantum-Si incorporated (QSI)
NASDAQ: QSI · Real-Time Price · USD
1.270
-0.020 (-1.55%)
Dec 2, 2025, 4:00 PM EST - Market closed
Quantum-Si incorporated Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 2, 2025 | 1.30 | 1.34 | 1.27 | 1.27 | 1.27 | -1.55% | 3,300,053 |
| Dec 1, 2025 | 1.36 | 1.36 | 1.28 | 1.29 | 1.29 | -8.51% | 3,377,529 |
| Nov 28, 2025 | 1.36 | 1.43 | 1.36 | 1.41 | 1.41 | 4.44% | 2,359,866 |
| Nov 26, 2025 | 1.36 | 1.39 | 1.31 | 1.35 | 1.35 | - | 4,443,550 |
| Nov 25, 2025 | 1.36 | 1.37 | 1.29 | 1.35 | 1.35 | - | 3,520,439 |
| Nov 24, 2025 | 1.27 | 1.35 | 1.26 | 1.35 | 1.35 | 6.30% | 4,637,084 |
| Nov 21, 2025 | 1.22 | 1.28 | 1.19 | 1.27 | 1.27 | 2.42% | 5,187,663 |
| Nov 20, 2025 | 1.37 | 1.40 | 1.23 | 1.24 | 1.24 | -3.13% | 6,750,856 |
| Nov 19, 2025 | 1.27 | 1.38 | 1.25 | 1.28 | 1.28 | 0.79% | 5,939,770 |
| Nov 18, 2025 | 1.28 | 1.35 | 1.23 | 1.27 | 1.27 | -2.31% | 5,006,762 |
| Nov 17, 2025 | 1.37 | 1.41 | 1.26 | 1.30 | 1.30 | -5.11% | 4,656,763 |
| Nov 14, 2025 | 1.27 | 1.45 | 1.27 | 1.37 | 1.37 | -1.44% | 7,297,913 |
| Nov 13, 2025 | 1.50 | 1.52 | 1.38 | 1.39 | 1.39 | -8.55% | 7,063,552 |
| Nov 12, 2025 | 1.58 | 1.62 | 1.52 | 1.52 | 1.52 | -3.80% | 5,462,113 |
| Nov 11, 2025 | 1.59 | 1.65 | 1.55 | 1.58 | 1.58 | -0.94% | 4,498,553 |
| Nov 10, 2025 | 1.73 | 1.74 | 1.59 | 1.60 | 1.60 | 1.27% | 5,590,422 |
| Nov 7, 2025 | 1.55 | 1.62 | 1.46 | 1.58 | 1.58 | -4.55% | 9,690,597 |
| Nov 6, 2025 | 1.77 | 1.77 | 1.59 | 1.65 | 1.65 | -8.33% | 9,785,114 |
| Nov 5, 2025 | 1.85 | 1.89 | 1.77 | 1.80 | 1.80 | -2.17% | 8,577,197 |
| Nov 4, 2025 | 1.86 | 1.95 | 1.82 | 1.84 | 1.84 | -8.00% | 7,175,474 |
| Nov 3, 2025 | 2.15 | 2.19 | 1.95 | 2.00 | 2.00 | -6.98% | 9,521,727 |
| Oct 31, 2025 | 2.04 | 2.16 | 2.03 | 2.15 | 2.15 | 5.91% | 6,172,895 |
| Oct 30, 2025 | 2.05 | 2.12 | 2.02 | 2.03 | 2.03 | -5.14% | 6,739,675 |
| Oct 29, 2025 | 2.14 | 2.23 | 2.09 | 2.14 | 2.14 | -1.83% | 7,171,252 |
| Oct 28, 2025 | 2.31 | 2.32 | 2.14 | 2.18 | 2.18 | -6.84% | 9,163,726 |
| Oct 27, 2025 | 2.38 | 2.42 | 2.22 | 2.34 | 2.34 | 2.18% | 10,282,659 |
| Oct 24, 2025 | 2.32 | 2.44 | 2.26 | 2.29 | 2.29 | 4.09% | 11,745,557 |
| Oct 23, 2025 | 2.38 | 2.38 | 2.17 | 2.20 | 2.20 | - | 12,164,767 |
| Oct 22, 2025 | 2.22 | 2.34 | 2.00 | 2.20 | 2.20 | -5.98% | 18,410,361 |
| Oct 21, 2025 | 2.48 | 2.52 | 2.27 | 2.34 | 2.34 | -9.48% | 15,333,668 |
| Oct 20, 2025 | 2.42 | 2.73 | 2.39 | 2.59 | 2.59 | 13.38% | 22,176,467 |
| Oct 17, 2025 | 2.38 | 2.53 | 2.26 | 2.28 | 2.28 | -10.24% | 20,988,672 |
| Oct 16, 2025 | 2.81 | 3.10 | 2.50 | 2.54 | 2.54 | -3.42% | 49,550,529 |
| Oct 15, 2025 | 2.45 | 2.75 | 2.36 | 2.63 | 2.63 | 22.33% | 53,572,323 |
| Oct 14, 2025 | 2.01 | 2.26 | 1.96 | 2.15 | 2.15 | 3.37% | 23,794,582 |
| Oct 13, 2025 | 1.75 | 2.13 | 1.73 | 2.08 | 2.08 | 24.55% | 33,370,615 |
| Oct 10, 2025 | 1.81 | 1.95 | 1.66 | 1.67 | 1.67 | -4.02% | 21,776,904 |
| Oct 9, 2025 | 1.77 | 1.80 | 1.69 | 1.74 | 1.74 | -1.69% | 6,852,637 |
| Oct 8, 2025 | 1.76 | 1.82 | 1.70 | 1.77 | 1.77 | - | 8,810,728 |
| Oct 7, 2025 | 1.85 | 1.92 | 1.68 | 1.77 | 1.77 | -2.21% | 18,189,350 |
| Oct 6, 2025 | 1.71 | 1.87 | 1.66 | 1.81 | 1.81 | 5.23% | 17,235,682 |
| Oct 3, 2025 | 1.57 | 1.76 | 1.56 | 1.72 | 1.72 | 11.69% | 19,291,713 |
| Oct 2, 2025 | 1.49 | 1.56 | 1.46 | 1.54 | 1.54 | 5.48% | 8,024,442 |
| Oct 1, 2025 | 1.42 | 1.50 | 1.41 | 1.46 | 1.46 | 3.55% | 5,506,554 |
| Sep 30, 2025 | 1.36 | 1.44 | 1.35 | 1.41 | 1.41 | 1.44% | 5,733,688 |
| Sep 29, 2025 | 1.40 | 1.43 | 1.35 | 1.39 | 1.39 | -6.71% | 9,550,045 |
| Sep 26, 2025 | 1.54 | 1.61 | 1.47 | 1.49 | 1.49 | -1.32% | 7,793,707 |
| Sep 25, 2025 | 1.52 | 1.55 | 1.44 | 1.51 | 1.51 | -6.21% | 10,700,557 |
| Sep 24, 2025 | 1.64 | 1.75 | 1.59 | 1.61 | 1.61 | 0.63% | 13,282,695 |
| Sep 23, 2025 | 1.78 | 1.79 | 1.56 | 1.60 | 1.60 | -5.88% | 21,284,357 |