Quantum-Si Incorporated - Class A Common Stock (QSI)
0.8824
+0.00 (0.00%)
NASDAQ · Last Trade: Mar 19th, 8:45 AM EDT
Historical Prices For Quantum-Si Incorporated - Class A Common Stock (QSI)
| Date | Open | High | Low | Close | Volume | Adjusted Close |
|---|---|---|---|---|---|---|
| 3/18/2026 | 0.93 | 0.94 | 0.88 | 0.88 | 3,132,274 | 0.88 |
| 3/17/2026 | 0.95 | 0.96 | 0.92 | 0.93 | 2,775,957 | 0.93 |
| 3/16/2026 | 0.95 | 0.98 | 0.94 | 0.94 | 2,701,259 | 0.94 |
| 3/13/2026 | 0.98 | 1.01 | 0.93 | 0.95 | 2,835,010 | 0.95 |
| 3/12/2026 | 1.02 | 1.02 | 0.95 | 0.98 | 3,975,009 | 0.98 |
| 3/11/2026 | 1.05 | 1.07 | 1.00 | 1.05 | 3,568,758 | 1.05 |
| 3/10/2026 | 0.94 | 1.10 | 0.94 | 1.04 | 8,454,545 | 1.04 |
| 3/09/2026 | 0.88 | 0.93 | 0.85 | 0.93 | 4,933,230 | 0.93 |
| 3/06/2026 | 0.89 | 0.90 | 0.84 | 0.86 | 5,636,905 | 0.86 |
| 3/05/2026 | 0.90 | 0.97 | 0.89 | 0.91 | 4,155,313 | 0.91 |
| 3/04/2026 | 0.95 | 0.97 | 0.91 | 0.91 | 2,953,642 | 0.91 |
| 3/03/2026 | 0.92 | 0.97 | 0.90 | 0.95 | 3,165,030 | 0.95 |
| 3/02/2026 | 0.93 | 0.96 | 0.91 | 0.93 | 1,815,453 | 0.93 |
| 2/27/2026 | 0.98 | 1.00 | 0.95 | 0.96 | 2,595,528 | 0.96 |
| 2/26/2026 | 1.01 | 1.02 | 0.97 | 1.01 | 2,263,031 | 1.01 |
| 2/25/2026 | 0.95 | 1.02 | 0.93 | 0.99 | 3,142,714 | 0.99 |
| 2/24/2026 | 0.91 | 0.95 | 0.91 | 0.93 | 1,364,759 | 0.93 |
| 2/23/2026 | 0.94 | 0.95 | 0.90 | 0.91 | 1,882,955 | 0.91 |
| 2/20/2026 | 0.96 | 0.96 | 0.93 | 0.94 | 1,754,682 | 0.94 |
| 2/19/2026 | 0.90 | 0.98 | 0.89 | 0.96 | 3,980,827 | 0.96 |
| 2/18/2026 | 0.96 | 0.98 | 0.90 | 0.91 | 4,864,877 | 0.91 |
| 2/17/2026 | 0.99 | 0.99 | 0.94 | 0.94 | 3,529,511 | 0.94 |
| 2/13/2026 | 0.99 | 1.05 | 0.99 | 0.99 | 3,127,839 | 0.99 |
| 2/12/2026 | 1.05 | 1.06 | 0.96 | 0.98 | 5,874,162 | 0.98 |
| 2/11/2026 | 1.12 | 1.12 | 1.01 | 1.04 | 4,034,466 | 1.04 |
| 2/10/2026 | 1.10 | 1.11 | 1.06 | 1.10 | 3,659,962 | 1.10 |
| 2/09/2026 | 1.09 | 1.09 | 1.02 | 1.07 | 3,140,443 | 1.07 |
| 2/06/2026 | 1.02 | 1.09 | 0.96 | 1.06 | 7,481,633 | 1.06 |
| 2/05/2026 | 1.03 | 1.04 | 0.92 | 0.93 | 8,114,952 | 0.93 |
| 2/04/2026 | 1.10 | 1.11 | 1.00 | 1.03 | 6,345,937 | 1.03 |
| 2/03/2026 | 1.11 | 1.13 | 1.05 | 1.09 | 5,027,221 | 1.09 |
| 2/02/2026 | 1.11 | 1.13 | 1.09 | 1.10 | 3,751,957 | 1.10 |
| 1/30/2026 | 1.16 | 1.19 | 1.11 | 1.13 | 5,467,548 | 1.13 |
| 1/29/2026 | 1.20 | 1.21 | 1.13 | 1.17 | 6,138,480 | 1.17 |
| 1/28/2026 | 1.23 | 1.24 | 1.17 | 1.20 | 3,911,235 | 1.20 |
| 1/27/2026 | 1.22 | 1.26 | 1.20 | 1.23 | 2,809,875 | 1.23 |
| 1/26/2026 | 1.25 | 1.27 | 1.21 | 1.21 | 3,118,048 | 1.21 |
| 1/23/2026 | 1.31 | 1.32 | 1.24 | 1.25 | 4,117,588 | 1.25 |
| 1/22/2026 | 1.23 | 1.33 | 1.22 | 1.31 | 6,396,102 | 1.31 |
| 1/21/2026 | 1.20 | 1.24 | 1.14 | 1.23 | 4,895,503 | 1.23 |
| 1/20/2026 | 1.21 | 1.24 | 1.18 | 1.19 | 5,726,996 | 1.19 |
| 1/16/2026 | 1.25 | 1.32 | 1.23 | 1.27 | 5,462,749 | 1.27 |
| 1/15/2026 | 1.29 | 1.30 | 1.23 | 1.23 | 3,674,652 | 1.23 |
| 1/14/2026 | 1.27 | 1.31 | 1.24 | 1.27 | 4,422,866 | 1.27 |
| 1/13/2026 | 1.25 | 1.32 | 1.20 | 1.27 | 5,739,645 | 1.27 |
| 1/12/2026 | 1.21 | 1.25 | 1.18 | 1.21 | 4,899,286 | 1.21 |
| 1/09/2026 | 1.27 | 1.28 | 1.21 | 1.22 | 4,460,523 | 1.22 |
| 1/08/2026 | 1.25 | 1.31 | 1.24 | 1.25 | 4,872,602 | 1.25 |
| 1/07/2026 | 1.29 | 1.32 | 1.25 | 1.26 | 4,095,276 | 1.26 |
| 1/06/2026 | 1.26 | 1.34 | 1.26 | 1.28 | 7,608,645 | 1.28 |
| 1/05/2026 | 1.19 | 1.31 | 1.19 | 1.26 | 8,299,843 | 1.26 |
| 1/02/2026 | 1.15 | 1.16 | 1.11 | 1.16 | 4,871,652 | 1.16 |
| 12/31/2025 | 1.11 | 1.15 | 1.07 | 1.10 | 5,902,296 | 1.10 |
| 12/30/2025 | 1.16 | 1.17 | 1.10 | 1.11 | 7,896,433 | 1.11 |
| 12/29/2025 | 1.21 | 1.26 | 1.17 | 1.18 | 7,991,399 | 1.18 |
| 12/26/2025 | 1.31 | 1.31 | 1.22 | 1.23 | 4,175,387 | 1.23 |
| 12/24/2025 | 1.24 | 1.33 | 1.24 | 1.31 | 4,344,523 | 1.31 |
| 12/23/2025 | 1.25 | 1.25 | 1.20 | 1.23 | 4,194,143 | 1.23 |
| 12/22/2025 | 1.28 | 1.32 | 1.25 | 1.27 | 5,093,110 | 1.27 |
| 12/19/2025 | 1.22 | 1.29 | 1.21 | 1.27 | 6,700,086 | 1.27 |