Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
11.65
-1.28 (-9.90%)
At close: Jun 26, 2026, 4:00 PM EDT
11.40
-0.25 (-2.15%)
After-hours: Jun 26, 2026, 7:58 PM EDT
Quantum Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Jun 26, 2026 | 11.24 | 11.70 | 9.80 | 11.65 | 11.65 | -9.90% | 2,296,808 |
| Jun 25, 2026 | 14.00 | 14.41 | 12.54 | 12.93 | 12.93 | -3.65% | 1,323,698 |
| Jun 24, 2026 | 13.77 | 14.08 | 12.96 | 13.42 | 13.42 | -2.82% | 629,566 |
| Jun 23, 2026 | 13.37 | 14.15 | 13.20 | 13.81 | 13.81 | -1.64% | 733,131 |
| Jun 22, 2026 | 15.75 | 16.50 | 13.99 | 14.04 | 14.04 | -10.00% | 1,192,145 |
| Jun 18, 2026 | 15.49 | 16.38 | 15.09 | 15.60 | 15.60 | 4.35% | 1,312,214 |
| Jun 17, 2026 | 14.76 | 15.78 | 13.76 | 14.95 | 14.95 | 3.75% | 1,095,095 |
| Jun 16, 2026 | 13.74 | 16.15 | 13.56 | 14.41 | 14.41 | 3.15% | 1,647,686 |
| Jun 15, 2026 | 15.28 | 16.00 | 13.70 | 13.97 | 13.97 | 1.67% | 2,448,199 |
| Jun 12, 2026 | 13.10 | 14.84 | 12.70 | 13.74 | 13.74 | 5.21% | 1,281,847 |
| Jun 11, 2026 | 12.61 | 13.09 | 11.75 | 13.06 | 13.06 | 3.73% | 1,062,052 |
| Jun 10, 2026 | 12.82 | 14.12 | 12.55 | 12.59 | 12.59 | -3.52% | 883,963 |
| Jun 9, 2026 | 12.67 | 14.98 | 11.99 | 13.05 | 13.05 | 4.07% | 2,079,422 |
| Jun 8, 2026 | 13.12 | 13.26 | 11.90 | 12.54 | 12.54 | -1.26% | 1,466,960 |
| Jun 5, 2026 | 15.23 | 15.74 | 12.15 | 12.70 | 12.70 | -19.52% | 2,645,649 |
| Jun 4, 2026 | 14.65 | 18.48 | 14.61 | 15.78 | 15.78 | -1.07% | 3,860,204 |
| Jun 3, 2026 | 12.19 | 16.63 | 12.19 | 15.95 | 15.95 | 27.19% | 4,852,535 |
| Jun 2, 2026 | 10.43 | 13.01 | 10.22 | 12.54 | 12.54 | 19.54% | 3,310,248 |
| Jun 1, 2026 | 9.55 | 10.70 | 9.36 | 10.49 | 10.49 | 8.03% | 1,165,691 |
| May 29, 2026 | 9.31 | 9.92 | 9.05 | 9.71 | 9.71 | 4.18% | 525,333 |
| May 28, 2026 | 8.65 | 9.54 | 8.61 | 9.32 | 9.32 | 5.67% | 611,179 |
| May 27, 2026 | 8.68 | 8.96 | 8.33 | 8.82 | 8.82 | 1.03% | 401,476 |
| May 26, 2026 | 9.08 | 9.11 | 8.45 | 8.73 | 8.73 | -3.54% | 569,588 |
| May 22, 2026 | 9.40 | 10.18 | 9.00 | 9.05 | 9.05 | -3.83% | 1,865,173 |
| May 21, 2026 | 8.33 | 9.65 | 8.28 | 9.41 | 9.41 | 15.32% | 1,303,469 |
| May 20, 2026 | 7.78 | 8.36 | 7.78 | 8.16 | 8.16 | 5.84% | 319,103 |
| May 19, 2026 | 7.80 | 7.96 | 7.46 | 7.71 | 7.71 | -3.38% | 385,923 |
| May 18, 2026 | 8.29 | 8.44 | 7.65 | 7.98 | 7.98 | -4.43% | 472,102 |
| May 15, 2026 | 8.39 | 8.57 | 8.10 | 8.35 | 8.35 | -5.11% | 402,021 |
| May 14, 2026 | 8.70 | 9.00 | 8.20 | 8.80 | 8.80 | -0.11% | 469,464 |
| May 13, 2026 | 8.94 | 9.08 | 8.57 | 8.81 | 8.81 | -1.45% | 380,206 |
| May 12, 2026 | 9.58 | 9.83 | 8.49 | 8.94 | 8.94 | -8.59% | 678,287 |
| May 11, 2026 | 9.62 | 10.26 | 9.17 | 9.78 | 9.78 | 1.66% | 934,158 |
| May 8, 2026 | 9.29 | 9.86 | 8.85 | 9.62 | 9.62 | 5.37% | 504,843 |
| May 7, 2026 | 9.70 | 9.72 | 8.76 | 9.13 | 9.13 | -8.97% | 881,823 |
| May 6, 2026 | 9.01 | 10.64 | 9.00 | 10.03 | 10.03 | 21.28% | 2,269,656 |
| May 5, 2026 | 7.60 | 8.30 | 7.41 | 8.27 | 8.27 | 9.39% | 765,290 |
| May 4, 2026 | 7.46 | 7.67 | 7.16 | 7.56 | 7.56 | 0.53% | 342,243 |
| May 1, 2026 | 7.15 | 7.59 | 7.15 | 7.52 | 7.52 | 5.32% | 359,079 |
| Apr 30, 2026 | 6.84 | 7.25 | 6.75 | 7.14 | 7.14 | 4.85% | 276,241 |
| Apr 29, 2026 | 6.74 | 6.88 | 6.47 | 6.81 | 6.81 | 1.34% | 272,656 |
| Apr 28, 2026 | 6.80 | 6.87 | 6.58 | 6.72 | 6.72 | -2.89% | 212,188 |
| Apr 27, 2026 | 7.08 | 7.17 | 6.70 | 6.92 | 6.92 | -3.49% | 342,540 |
| Apr 24, 2026 | 7.26 | 7.66 | 7.15 | 7.17 | 7.17 | 1.85% | 599,539 |
| Apr 23, 2026 | 7.16 | 7.18 | 6.88 | 7.04 | 7.04 | -1.95% | 269,291 |
| Apr 22, 2026 | 7.14 | 7.45 | 7.10 | 7.18 | 7.18 | 3.01% | 219,919 |
| Apr 21, 2026 | 7.13 | 7.35 | 6.93 | 6.97 | 6.97 | -3.19% | 256,720 |
| Apr 20, 2026 | 7.07 | 7.25 | 7.02 | 7.20 | 7.20 | -1.10% | 232,252 |
| Apr 17, 2026 | 7.18 | 7.51 | 7.00 | 7.28 | 7.28 | 2.97% | 523,529 |
| Apr 16, 2026 | 7.31 | 7.31 | 6.66 | 7.07 | 7.07 | -2.48% | 581,100 |
| Apr 15, 2026 | 7.14 | 7.46 | 6.91 | 7.25 | 7.25 | 4.92% | 976,992 |
| Apr 14, 2026 | 6.43 | 7.12 | 6.35 | 6.91 | 6.91 | 7.63% | 1,193,756 |
| Apr 13, 2026 | 5.93 | 6.47 | 5.85 | 6.42 | 6.42 | 6.29% | 350,790 |
| Apr 10, 2026 | 5.95 | 6.25 | 5.88 | 6.04 | 6.04 | 2.55% | 194,565 |
| Apr 9, 2026 | 5.95 | 6.10 | 5.73 | 5.89 | 5.89 | -3.13% | 363,359 |
| Apr 8, 2026 | 6.47 | 6.52 | 5.92 | 6.08 | 6.08 | -0.33% | 392,261 |
| Apr 7, 2026 | 5.89 | 6.22 | 5.80 | 6.10 | 6.10 | -0.81% | 383,528 |
| Apr 6, 2026 | 5.68 | 6.37 | 5.64 | 6.15 | 6.15 | 8.27% | 534,164 |
| Apr 2, 2026 | 4.81 | 5.74 | 4.81 | 5.68 | 5.68 | 12.92% | 585,424 |
| Apr 1, 2026 | 4.85 | 5.24 | 4.81 | 5.03 | 5.03 | 5.89% | 335,757 |
| Mar 31, 2026 | 4.34 | 4.83 | 4.25 | 4.75 | 4.75 | 10.21% | 669,263 |
| Mar 30, 2026 | 4.75 | 4.81 | 4.19 | 4.31 | 4.31 | -7.91% | 632,147 |
| Mar 27, 2026 | 5.09 | 5.09 | 4.63 | 4.68 | 4.68 | -10.34% | 492,450 |
| Mar 26, 2026 | 5.42 | 5.76 | 5.17 | 5.22 | 5.22 | -7.77% | 346,053 |
| Mar 25, 2026 | 5.35 | 5.94 | 5.16 | 5.66 | 5.66 | 10.76% | 751,001 |
| Mar 24, 2026 | 5.19 | 5.40 | 5.06 | 5.11 | 5.11 | -2.85% | 143,654 |
| Mar 23, 2026 | 5.12 | 5.33 | 5.07 | 5.26 | 5.26 | 5.84% | 178,145 |
| Mar 20, 2026 | 5.16 | 5.16 | 4.87 | 4.97 | 4.97 | -4.24% | 195,757 |
| Mar 19, 2026 | 5.18 | 5.25 | 4.96 | 5.19 | 5.19 | -2.08% | 271,349 |
| Mar 18, 2026 | 5.45 | 5.63 | 5.29 | 5.30 | 5.30 | -3.99% | 244,818 |
| Mar 17, 2026 | 5.52 | 5.66 | 5.38 | 5.52 | 5.52 | -0.36% | 165,976 |
| Mar 16, 2026 | 5.40 | 5.56 | 5.30 | 5.54 | 5.54 | 4.53% | 158,089 |
| Mar 13, 2026 | 5.46 | 5.58 | 5.13 | 5.30 | 5.30 | -2.57% | 205,886 |
| Mar 12, 2026 | 5.61 | 5.73 | 5.33 | 5.44 | 5.44 | -5.23% | 294,589 |
| Mar 11, 2026 | 5.52 | 5.77 | 5.49 | 5.74 | 5.74 | 3.99% | 256,998 |
| Mar 10, 2026 | 5.36 | 5.61 | 5.35 | 5.52 | 5.52 | 2.60% | 269,585 |
| Mar 9, 2026 | 4.99 | 5.44 | 4.95 | 5.38 | 5.38 | 4.87% | 356,788 |
| Mar 6, 2026 | 4.88 | 5.41 | 4.88 | 5.13 | 5.13 | 0.59% | 480,485 |
| Mar 5, 2026 | 4.73 | 5.22 | 4.70 | 5.10 | 5.10 | 6.03% | 568,182 |
| Mar 4, 2026 | 4.78 | 4.94 | 4.56 | 4.81 | 4.81 | 3.66% | 785,651 |
| Mar 3, 2026 | 5.17 | 5.19 | 4.50 | 4.64 | 4.64 | -12.45% | 1,130,183 |
| Mar 2, 2026 | 5.13 | 5.51 | 5.13 | 5.30 | 5.30 | -3.28% | 398,883 |
| Feb 27, 2026 | 5.45 | 5.52 | 5.27 | 5.48 | 5.48 | -3.35% | 283,778 |
| Feb 26, 2026 | 5.51 | 5.69 | 5.43 | 5.67 | 5.67 | 4.04% | 361,733 |
| Feb 25, 2026 | 5.39 | 5.55 | 5.32 | 5.45 | 5.45 | 1.11% | 324,882 |
| Feb 24, 2026 | 5.18 | 5.47 | 5.10 | 5.39 | 5.39 | 2.67% | 333,633 |
| Feb 23, 2026 | 5.26 | 5.39 | 5.07 | 5.25 | 5.25 | -2.05% | 358,348 |
| Feb 20, 2026 | 5.43 | 5.70 | 5.25 | 5.36 | 5.36 | -3.60% | 391,549 |
| Feb 19, 2026 | 5.20 | 5.60 | 5.15 | 5.56 | 5.56 | 1.65% | 776,094 |
| Feb 18, 2026 | 6.42 | 6.45 | 5.43 | 5.47 | 5.47 | -2.50% | 1,576,574 |
| Feb 17, 2026 | 5.79 | 5.80 | 5.33 | 5.61 | 5.61 | -2.94% | 1,639,057 |
| Feb 13, 2026 | 5.89 | 5.95 | 5.69 | 5.78 | 5.78 | -0.17% | 188,852 |
| Feb 12, 2026 | 6.37 | 6.37 | 5.60 | 5.79 | 5.79 | -8.39% | 755,500 |
| Feb 11, 2026 | 6.26 | 6.42 | 5.96 | 6.32 | 6.32 | 2.60% | 415,594 |
| Feb 10, 2026 | 5.94 | 6.28 | 5.90 | 6.16 | 6.16 | 3.70% | 388,177 |
| Feb 9, 2026 | 5.86 | 6.09 | 5.61 | 5.94 | 5.94 | 0.85% | 493,464 |
| Feb 6, 2026 | 5.19 | 5.90 | 5.15 | 5.89 | 5.89 | 18.75% | 786,299 |
| Feb 5, 2026 | 5.70 | 5.80 | 4.89 | 4.96 | 4.96 | -14.63% | 786,659 |
| Feb 4, 2026 | 6.25 | 6.25 | 5.64 | 5.81 | 5.81 | -6.89% | 702,644 |
| Feb 3, 2026 | 6.39 | 6.39 | 6.03 | 6.24 | 6.24 | -0.32% | 377,506 |