Quantum BioPharma Ltd. (QNTM)
NASDAQ: QNTM · Real-Time Price · USD
3.800
-0.170 (-4.28%)
At close: Jun 18, 2026, 4:00 PM EDT
3.700
-0.100 (-2.63%)
After-hours: Jun 18, 2026, 7:55 PM EDT
Quantum BioPharma Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Jun 18, 2026 | 4.15 | 4.15 | 3.70 | 3.80 | 3.80 | -4.28% | 166,356 |
| Jun 17, 2026 | 3.67 | 4.22 | 3.62 | 3.97 | 3.97 | 9.07% | 245,521 |
| Jun 16, 2026 | 3.70 | 3.72 | 3.52 | 3.64 | 3.64 | -1.62% | 95,674 |
| Jun 15, 2026 | 3.81 | 3.94 | 3.66 | 3.70 | 3.70 | -3.39% | 171,677 |
| Jun 12, 2026 | 4.04 | 4.10 | 3.78 | 3.83 | 3.83 | -4.25% | 118,316 |
| Jun 11, 2026 | 3.86 | 4.13 | 3.71 | 4.00 | 4.00 | 1.78% | 194,885 |
| Jun 10, 2026 | 3.84 | 4.25 | 3.84 | 3.93 | 3.93 | 1.03% | 187,842 |
| Jun 9, 2026 | 4.08 | 4.10 | 3.59 | 3.89 | 3.89 | -3.95% | 322,028 |
| Jun 8, 2026 | 4.30 | 4.58 | 3.90 | 4.05 | 4.05 | -4.93% | 265,277 |
| Jun 5, 2026 | 4.49 | 4.49 | 4.02 | 4.26 | 4.26 | -4.91% | 382,749 |
| Jun 4, 2026 | 4.76 | 5.08 | 4.18 | 4.48 | 4.48 | -8.20% | 586,518 |
| Jun 3, 2026 | 5.42 | 5.45 | 4.70 | 4.88 | 4.88 | -4.50% | 356,336 |
| Jun 2, 2026 | 5.05 | 5.24 | 4.70 | 5.11 | 5.11 | -2.67% | 608,964 |
| Jun 1, 2026 | 6.70 | 6.71 | 5.25 | 5.25 | 5.25 | -23.47% | 698,340 |
| May 29, 2026 | 7.11 | 7.24 | 6.65 | 6.86 | 6.86 | -2.28% | 196,794 |
| May 28, 2026 | 7.56 | 7.62 | 6.43 | 7.02 | 7.02 | -8.12% | 542,722 |
| May 27, 2026 | 7.10 | 7.83 | 6.62 | 7.64 | 7.64 | 8.37% | 551,567 |
| May 26, 2026 | 10.51 | 10.81 | 6.56 | 7.05 | 7.05 | -23.70% | 1,788,037 |
| May 22, 2026 | 7.80 | 9.30 | 7.21 | 9.24 | 9.24 | 18.31% | 833,836 |
| May 21, 2026 | 8.10 | 8.25 | 7.45 | 7.81 | 7.81 | - | 478,891 |
| May 20, 2026 | 7.23 | 8.24 | 6.70 | 7.81 | 7.81 | 11.57% | 476,252 |
| May 19, 2026 | 6.58 | 7.18 | 6.35 | 7.00 | 7.00 | 11.64% | 336,043 |
| May 18, 2026 | 7.45 | 7.69 | 6.07 | 6.27 | 6.27 | -7.93% | 499,932 |
| May 15, 2026 | 6.78 | 7.40 | 6.60 | 6.81 | 6.81 | -0.87% | 380,072 |
| May 14, 2026 | 5.55 | 7.25 | 5.46 | 6.87 | 6.87 | 25.59% | 827,817 |
| May 13, 2026 | 5.19 | 5.70 | 5.08 | 5.47 | 5.47 | 5.19% | 157,563 |
| May 12, 2026 | 5.09 | 5.34 | 4.89 | 5.20 | 5.20 | 2.77% | 121,442 |
| May 11, 2026 | 4.79 | 5.34 | 4.60 | 5.06 | 5.06 | 3.69% | 173,011 |
| May 8, 2026 | 4.93 | 5.01 | 4.70 | 4.88 | 4.88 | -2.59% | 118,020 |
| May 7, 2026 | 5.25 | 5.41 | 4.85 | 5.01 | 5.01 | -5.11% | 184,599 |
| May 6, 2026 | 5.17 | 5.54 | 5.17 | 5.28 | 5.28 | -1.49% | 207,637 |
| May 5, 2026 | 5.23 | 5.59 | 5.15 | 5.36 | 5.36 | 3.08% | 244,081 |
| May 4, 2026 | 5.52 | 5.73 | 5.02 | 5.20 | 5.20 | -6.31% | 128,707 |
| May 1, 2026 | 5.73 | 6.16 | 5.39 | 5.55 | 5.55 | -3.14% | 360,008 |
| Apr 30, 2026 | 5.65 | 5.90 | 5.00 | 5.73 | 5.73 | 1.42% | 487,550 |
| Apr 29, 2026 | 5.43 | 5.70 | 4.62 | 5.65 | 5.65 | 5.21% | 671,652 |
| Apr 28, 2026 | 4.36 | 5.60 | 4.36 | 5.37 | 5.37 | 20.67% | 932,159 |
| Apr 27, 2026 | 3.65 | 4.98 | 3.61 | 4.45 | 4.45 | 23.27% | 1,965,720 |
| Apr 24, 2026 | 3.26 | 3.65 | 3.18 | 3.61 | 3.61 | 12.46% | 248,698 |
| Apr 23, 2026 | 3.34 | 3.37 | 3.11 | 3.21 | 3.21 | -4.18% | 138,402 |
| Apr 22, 2026 | 3.53 | 3.90 | 3.20 | 3.35 | 3.35 | -2.62% | 442,186 |
| Apr 21, 2026 | 3.20 | 3.94 | 3.15 | 3.44 | 3.44 | 10.26% | 1,191,211 |
| Apr 20, 2026 | 3.15 | 3.20 | 3.05 | 3.12 | 3.12 | - | 77,523 |
| Apr 17, 2026 | 3.24 | 3.32 | 3.05 | 3.12 | 3.12 | -1.58% | 155,938 |
| Apr 16, 2026 | 3.12 | 3.33 | 3.07 | 3.17 | 3.17 | 3.26% | 197,783 |
| Apr 15, 2026 | 2.97 | 3.26 | 2.97 | 3.07 | 3.07 | 1.66% | 208,278 |
| Apr 14, 2026 | 3.36 | 3.44 | 2.80 | 3.02 | 3.02 | -9.99% | 431,205 |
| Apr 13, 2026 | 3.51 | 3.68 | 3.26 | 3.36 | 3.36 | -4.82% | 143,796 |
| Apr 10, 2026 | 3.26 | 3.68 | 3.25 | 3.53 | 3.53 | 7.80% | 111,308 |
| Apr 9, 2026 | 3.67 | 3.76 | 3.18 | 3.27 | 3.27 | -11.14% | 203,172 |