Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
9.89
-0.46 (-4.44%)
Oct 21, 2025, 3:11 PM EDT - Market open
Quantum Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 21, 2025 | 10.30 | 10.34 | 9.85 | 9.92 | - | -4.15% | 626,992 |
| Oct 20, 2025 | 10.68 | 10.88 | 10.33 | 10.35 | 10.35 | 0.58% | 866,302 |
| Oct 17, 2025 | 10.99 | 11.10 | 10.25 | 10.29 | 10.29 | -7.96% | 1,190,809 |
| Oct 16, 2025 | 12.50 | 12.62 | 11.05 | 11.18 | 11.18 | -10.13% | 1,457,257 |
| Oct 15, 2025 | 13.12 | 13.42 | 11.94 | 12.44 | 12.44 | -1.97% | 2,150,491 |
| Oct 14, 2025 | 11.67 | 13.13 | 11.18 | 12.69 | 12.69 | 7.54% | 2,884,258 |
| Oct 13, 2025 | 11.56 | 12.20 | 11.50 | 11.80 | 11.80 | 7.66% | 2,020,195 |
| Oct 10, 2025 | 12.66 | 13.00 | 10.92 | 10.96 | 10.96 | -12.60% | 2,761,477 |
| Oct 9, 2025 | 12.85 | 13.39 | 12.12 | 12.54 | 12.54 | -3.09% | 1,786,438 |
| Oct 8, 2025 | 13.24 | 13.64 | 12.37 | 12.94 | 12.94 | -3.07% | 3,058,397 |
| Oct 7, 2025 | 12.50 | 15.33 | 12.10 | 13.35 | 13.35 | 12.09% | 9,097,251 |
| Oct 6, 2025 | 11.50 | 12.06 | 10.90 | 11.91 | 11.91 | 1.28% | 2,423,427 |
| Oct 3, 2025 | 11.59 | 12.72 | 11.55 | 11.76 | 11.76 | 7.69% | 5,414,865 |
| Oct 2, 2025 | 10.96 | 11.24 | 10.37 | 10.92 | 10.92 | 0.28% | 2,191,762 |
| Oct 1, 2025 | 9.81 | 10.98 | 9.78 | 10.89 | 10.89 | 9.78% | 2,041,698 |
| Sep 30, 2025 | 9.65 | 10.42 | 9.50 | 9.92 | 9.92 | 1.22% | 1,389,258 |
| Sep 29, 2025 | 9.64 | 9.82 | 9.05 | 9.80 | 9.80 | 3.38% | 1,078,346 |
| Sep 26, 2025 | 9.64 | 10.19 | 9.26 | 9.48 | 9.48 | -1.46% | 1,926,759 |
| Sep 25, 2025 | 9.31 | 9.98 | 9.22 | 9.62 | 9.62 | -5.31% | 2,037,903 |
| Sep 24, 2025 | 11.06 | 11.16 | 10.06 | 10.16 | 10.16 | -4.96% | 2,563,735 |
| Sep 23, 2025 | 11.74 | 12.48 | 10.36 | 10.69 | 10.69 | -6.72% | 4,938,317 |
| Sep 22, 2025 | 12.61 | 12.83 | 10.88 | 11.46 | 11.46 | -3.54% | 9,818,466 |
| Sep 19, 2025 | 8.70 | 12.69 | 8.53 | 11.88 | 11.88 | 40.59% | 22,217,533 |
| Sep 18, 2025 | 8.79 | 9.16 | 8.40 | 8.45 | 8.45 | 1.20% | 2,152,922 |
| Sep 17, 2025 | 8.19 | 8.74 | 8.14 | 8.35 | 8.35 | 0.97% | 1,422,055 |
| Sep 16, 2025 | 8.07 | 8.53 | 7.85 | 8.27 | 8.27 | 4.95% | 1,137,879 |
| Sep 15, 2025 | 7.78 | 8.06 | 7.52 | 7.88 | 7.88 | 7.07% | 1,156,918 |
| Sep 12, 2025 | 7.21 | 7.87 | 7.16 | 7.36 | 7.36 | 3.44% | 1,557,700 |
| Sep 11, 2025 | 7.39 | 7.57 | 7.07 | 7.12 | 7.12 | -16.98% | 2,176,168 |
| Sep 10, 2025 | 8.25 | 8.62 | 7.85 | 8.57 | 8.57 | 7.26% | 2,113,019 |
| Sep 9, 2025 | 7.60 | 8.04 | 7.57 | 7.99 | 7.99 | 5.27% | 531,189 |
| Sep 8, 2025 | 7.45 | 7.64 | 7.35 | 7.59 | 7.59 | 2.29% | 342,765 |
| Sep 5, 2025 | 7.27 | 7.43 | 7.06 | 7.42 | 7.42 | 3.34% | 277,338 |
| Sep 4, 2025 | 7.18 | 7.22 | 7.03 | 7.18 | 7.18 | -0.42% | 203,272 |
| Sep 3, 2025 | 7.30 | 7.40 | 7.14 | 7.21 | 7.21 | -1.23% | 206,102 |
| Sep 2, 2025 | 7.19 | 7.34 | 7.01 | 7.30 | 7.30 | -1.75% | 243,388 |
| Aug 29, 2025 | 7.56 | 7.58 | 7.37 | 7.43 | 7.43 | -2.62% | 305,732 |
| Aug 28, 2025 | 7.46 | 7.79 | 7.38 | 7.63 | 7.63 | 4.09% | 384,895 |
| Aug 27, 2025 | 7.21 | 7.73 | 7.15 | 7.33 | 7.33 | -7.68% | 652,819 |
| Aug 26, 2025 | 7.95 | 8.14 | 7.80 | 7.94 | 7.94 | 2.06% | 678,546 |
| Aug 25, 2025 | 7.60 | 7.83 | 7.40 | 7.78 | 7.78 | 0.39% | 350,851 |
| Aug 22, 2025 | 7.02 | 7.77 | 6.98 | 7.75 | 7.75 | 10.24% | 564,489 |
| Aug 21, 2025 | 6.70 | 7.03 | 6.68 | 7.03 | 7.03 | 3.84% | 329,710 |
| Aug 20, 2025 | 6.80 | 6.89 | 6.51 | 6.77 | 6.77 | -0.88% | 419,081 |
| Aug 19, 2025 | 7.34 | 7.34 | 6.76 | 6.83 | 6.83 | -8.20% | 802,325 |
| Aug 18, 2025 | 7.46 | 7.52 | 7.27 | 7.44 | 7.44 | -1.46% | 236,427 |
| Aug 15, 2025 | 7.83 | 7.83 | 7.47 | 7.55 | 7.55 | -4.07% | 466,686 |
| Aug 14, 2025 | 7.81 | 7.90 | 7.58 | 7.87 | 7.87 | -1.62% | 329,643 |
| Aug 13, 2025 | 7.35 | 8.00 | 7.27 | 8.00 | 8.00 | 7.67% | 675,639 |
| Aug 12, 2025 | 7.68 | 7.70 | 6.90 | 7.43 | 7.43 | -3.00% | 897,426 |