Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
5.38
+0.25 (4.87%)
At close: Mar 9, 2026, 4:00 PM EDT
5.35
-0.03 (-0.56%)
After-hours: Mar 9, 2026, 7:54 PM EDT
Quantum Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026 | 4.99 | 5.44 | 4.95 | 5.38 | 5.38 | 4.87% | 355,030 |
| Mar 6, 2026 | 4.88 | 5.41 | 4.88 | 5.13 | 5.13 | 0.59% | 480,477 |
| Mar 5, 2026 | 4.73 | 5.22 | 4.70 | 5.10 | 5.10 | 6.03% | 563,440 |
| Mar 4, 2026 | 4.78 | 4.94 | 4.56 | 4.81 | 4.81 | 3.66% | 770,978 |
| Mar 3, 2026 | 5.17 | 5.19 | 4.50 | 4.64 | 4.64 | -12.45% | 1,118,440 |
| Mar 2, 2026 | 5.13 | 5.51 | 5.13 | 5.30 | 5.30 | -3.28% | 397,636 |
| Feb 27, 2026 | 5.45 | 5.52 | 5.27 | 5.48 | 5.48 | -3.35% | 282,506 |
| Feb 26, 2026 | 5.51 | 5.69 | 5.43 | 5.67 | 5.67 | 4.04% | 359,086 |
| Feb 25, 2026 | 5.39 | 5.55 | 5.32 | 5.45 | 5.45 | 1.11% | 324,298 |
| Feb 24, 2026 | 5.18 | 5.47 | 5.10 | 5.39 | 5.39 | 2.67% | 329,932 |
| Feb 23, 2026 | 5.26 | 5.39 | 5.07 | 5.25 | 5.25 | -2.05% | 353,469 |
| Feb 20, 2026 | 5.43 | 5.70 | 5.25 | 5.36 | 5.36 | -3.60% | 389,863 |
| Feb 19, 2026 | 5.20 | 5.60 | 5.15 | 5.56 | 5.56 | 1.65% | 767,866 |
| Feb 18, 2026 | 6.42 | 6.45 | 5.43 | 5.47 | 5.47 | -2.50% | 1,558,861 |
| Feb 17, 2026 | 5.79 | 5.80 | 5.33 | 5.61 | 5.61 | -2.94% | 906,844 |
| Feb 13, 2026 | 5.89 | 5.95 | 5.69 | 5.78 | 5.78 | -0.17% | 188,776 |
| Feb 12, 2026 | 6.37 | 6.37 | 5.60 | 5.79 | 5.79 | -8.39% | 753,747 |
| Feb 11, 2026 | 6.26 | 6.42 | 5.96 | 6.32 | 6.32 | 2.60% | 413,573 |
| Feb 10, 2026 | 5.94 | 6.28 | 5.90 | 6.16 | 6.16 | 3.70% | 386,837 |
| Feb 9, 2026 | 5.86 | 6.09 | 5.61 | 5.94 | 5.94 | 0.85% | 491,066 |
| Feb 6, 2026 | 5.19 | 5.90 | 5.15 | 5.89 | 5.89 | 18.75% | 782,262 |
| Feb 5, 2026 | 5.70 | 5.80 | 4.89 | 4.96 | 4.96 | -14.63% | 767,728 |
| Feb 4, 2026 | 6.25 | 6.25 | 5.64 | 5.81 | 5.81 | -6.89% | 685,445 |
| Feb 3, 2026 | 6.39 | 6.39 | 6.03 | 6.24 | 6.24 | -0.32% | 375,595 |
| Feb 2, 2026 | 6.12 | 6.47 | 6.03 | 6.26 | 6.26 | 0.97% | 419,465 |
| Jan 30, 2026 | 6.45 | 6.51 | 6.11 | 6.20 | 6.20 | -5.20% | 591,698 |
| Jan 29, 2026 | 6.79 | 6.79 | 6.43 | 6.54 | 6.54 | -3.68% | 600,292 |
| Jan 28, 2026 | 6.93 | 7.10 | 6.70 | 6.79 | 6.79 | -2.72% | 487,408 |
| Jan 27, 2026 | 6.85 | 7.01 | 6.68 | 6.98 | 6.98 | 1.90% | 397,336 |
| Jan 26, 2026 | 7.02 | 7.02 | 6.70 | 6.85 | 6.85 | -2.42% | 492,282 |
| Jan 23, 2026 | 7.27 | 7.27 | 7.00 | 7.02 | 7.02 | -3.17% | 320,226 |
| Jan 22, 2026 | 7.33 | 7.50 | 7.13 | 7.25 | 7.25 | 0.83% | 512,184 |
| Jan 21, 2026 | 7.45 | 7.61 | 6.77 | 7.19 | 7.19 | -2.31% | 940,495 |
| Jan 20, 2026 | 7.51 | 7.81 | 7.23 | 7.36 | 7.36 | -6.72% | 756,314 |
| Jan 16, 2026 | 8.00 | 8.11 | 7.72 | 7.89 | 7.89 | -0.25% | 577,522 |
| Jan 15, 2026 | 8.06 | 8.24 | 7.55 | 7.91 | 7.91 | 5.61% | 1,390,474 |
| Jan 14, 2026 | 7.34 | 7.50 | 7.17 | 7.49 | 7.49 | 2.60% | 246,743 |
| Jan 13, 2026 | 7.54 | 7.58 | 7.21 | 7.30 | 7.30 | -2.80% | 333,798 |
| Jan 12, 2026 | 7.47 | 7.77 | 7.31 | 7.51 | 7.51 | -0.40% | 413,371 |
| Jan 9, 2026 | 7.86 | 7.90 | 7.45 | 7.54 | 7.54 | -2.46% | 364,362 |
| Jan 8, 2026 | 7.39 | 7.98 | 7.35 | 7.73 | 7.73 | 3.76% | 535,691 |
| Jan 7, 2026 | 7.85 | 7.87 | 7.38 | 7.45 | 7.45 | -6.76% | 522,847 |
| Jan 6, 2026 | 7.87 | 8.08 | 7.46 | 7.99 | 7.99 | 4.17% | 487,599 |
| Jan 5, 2026 | 7.13 | 8.10 | 7.12 | 7.67 | 7.67 | 9.57% | 963,395 |
| Jan 2, 2026 | 6.72 | 7.03 | 6.67 | 7.00 | 7.00 | 8.53% | 500,970 |
| Dec 31, 2025 | 6.73 | 6.81 | 6.22 | 6.45 | 6.45 | -4.44% | 1,184,655 |
| Dec 30, 2025 | 6.72 | 6.95 | 6.70 | 6.75 | 6.75 | -0.44% | 449,353 |
| Dec 29, 2025 | 6.82 | 7.03 | 6.72 | 6.78 | 6.78 | -2.59% | 524,123 |
| Dec 26, 2025 | 7.34 | 7.34 | 6.92 | 6.96 | 6.96 | -5.56% | 455,857 |
| Dec 24, 2025 | 7.24 | 7.39 | 7.01 | 7.37 | 7.37 | 1.80% | 175,028 |
| Dec 23, 2025 | 7.41 | 7.58 | 7.09 | 7.24 | 7.24 | -2.56% | 464,102 |
| Dec 22, 2025 | 7.38 | 7.88 | 7.30 | 7.43 | 7.43 | 1.50% | 613,687 |
| Dec 19, 2025 | 7.29 | 7.47 | 7.24 | 7.32 | 7.32 | 0.97% | 720,025 |
| Dec 18, 2025 | 7.51 | 7.94 | 7.07 | 7.25 | 7.25 | -2.29% | 532,537 |
| Dec 17, 2025 | 7.95 | 8.15 | 7.40 | 7.42 | 7.42 | -6.78% | 317,669 |
| Dec 16, 2025 | 7.73 | 8.08 | 7.69 | 7.96 | 7.96 | 2.98% | 354,413 |
| Dec 15, 2025 | 9.05 | 9.11 | 7.72 | 7.73 | 7.73 | -14.40% | 576,675 |
| Dec 12, 2025 | 9.75 | 9.80 | 8.89 | 9.03 | 9.03 | -7.38% | 555,856 |
| Dec 11, 2025 | 9.39 | 10.01 | 9.25 | 9.75 | 9.75 | 2.74% | 680,216 |
| Dec 10, 2025 | 9.03 | 9.75 | 8.76 | 9.49 | 9.49 | 4.98% | 763,430 |
| Dec 9, 2025 | 8.98 | 9.09 | 8.41 | 9.04 | 9.04 | -0.66% | 384,384 |
| Dec 8, 2025 | 8.81 | 9.13 | 8.69 | 9.10 | 9.10 | 4.36% | 362,173 |
| Dec 5, 2025 | 8.73 | 8.98 | 8.50 | 8.72 | 8.72 | -0.23% | 492,089 |
| Dec 4, 2025 | 8.16 | 8.76 | 8.06 | 8.74 | 8.74 | 5.81% | 637,860 |
| Dec 3, 2025 | 7.71 | 8.26 | 7.63 | 8.26 | 8.26 | 6.99% | 329,597 |
| Dec 2, 2025 | 7.56 | 7.82 | 7.52 | 7.72 | 7.72 | 2.39% | 236,387 |
| Dec 1, 2025 | 7.52 | 7.75 | 7.43 | 7.54 | 7.54 | -3.95% | 258,927 |
| Nov 28, 2025 | 7.58 | 7.91 | 7.49 | 7.85 | 7.85 | 4.95% | 303,037 |
| Nov 26, 2025 | 6.90 | 7.63 | 6.90 | 7.48 | 7.48 | 7.63% | 475,072 |
| Nov 25, 2025 | 6.97 | 7.01 | 6.56 | 6.95 | 6.95 | -0.29% | 568,877 |
| Nov 24, 2025 | 7.00 | 7.11 | 6.87 | 6.97 | 6.97 | -0.14% | 666,720 |
| Nov 21, 2025 | 7.09 | 7.16 | 6.55 | 6.98 | 6.98 | -4.51% | 980,573 |
| Nov 20, 2025 | 7.92 | 8.30 | 7.26 | 7.31 | 7.31 | -4.32% | 828,291 |
| Nov 19, 2025 | 7.64 | 7.83 | 7.42 | 7.64 | 7.64 | -0.91% | 505,899 |
| Nov 18, 2025 | 7.29 | 7.81 | 7.26 | 7.71 | 7.71 | 4.33% | 623,464 |
| Nov 17, 2025 | 7.34 | 8.03 | 7.27 | 7.39 | 7.39 | -6.10% | 895,069 |
| Nov 14, 2025 | 7.45 | 8.48 | 7.43 | 7.87 | 7.87 | 11.95% | 2,204,305 |
| Nov 13, 2025 | 7.36 | 7.50 | 6.90 | 7.03 | 7.03 | -8.70% | 808,219 |
| Nov 12, 2025 | 7.79 | 7.93 | 7.51 | 7.70 | 7.70 | -2.28% | 437,851 |
| Nov 11, 2025 | 8.00 | 8.08 | 7.75 | 7.88 | 7.88 | -3.79% | 320,716 |
| Nov 10, 2025 | 8.45 | 8.45 | 7.92 | 8.19 | 8.19 | 0.12% | 502,203 |
| Nov 7, 2025 | 7.68 | 8.20 | 7.36 | 8.18 | 8.18 | 1.61% | 838,633 |
| Nov 6, 2025 | 8.39 | 8.39 | 7.75 | 8.05 | 8.05 | -1.83% | 711,414 |
| Nov 5, 2025 | 8.50 | 8.68 | 8.18 | 8.20 | 8.20 | -3.42% | 677,720 |
| Nov 4, 2025 | 8.92 | 9.18 | 8.45 | 8.49 | 8.49 | -9.58% | 744,572 |
| Nov 3, 2025 | 9.40 | 9.49 | 8.98 | 9.39 | 9.39 | -0.53% | 676,147 |
| Oct 31, 2025 | 9.49 | 9.53 | 9.17 | 9.44 | 9.44 | 0.43% | 866,337 |
| Oct 30, 2025 | 9.38 | 9.57 | 9.27 | 9.40 | 9.40 | -2.39% | 605,606 |
| Oct 29, 2025 | 10.06 | 10.16 | 9.41 | 9.63 | 9.63 | -4.18% | 1,265,985 |
| Oct 28, 2025 | 10.00 | 10.33 | 9.83 | 10.05 | 10.05 | -0.89% | 1,074,740 |
| Oct 27, 2025 | 10.98 | 11.03 | 10.01 | 10.14 | 10.14 | -3.06% | 1,499,203 |
| Oct 24, 2025 | 10.54 | 11.28 | 10.42 | 10.46 | 10.46 | 2.05% | 1,247,687 |
| Oct 23, 2025 | 10.39 | 10.51 | 9.95 | 10.25 | 10.25 | 9.98% | 1,535,493 |
| Oct 22, 2025 | 9.65 | 9.68 | 8.90 | 9.32 | 9.32 | -5.95% | 1,284,327 |
| Oct 21, 2025 | 10.30 | 10.34 | 9.77 | 9.91 | 9.91 | -4.25% | 860,854 |
| 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 |