Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
11.45
+0.89 (8.43%)
At close: Aug 4, 2026, 4:00 PM EDT
11.40
-0.05 (-0.44%)
After-hours: Aug 4, 2026, 7:59 PM EDT

Quantum Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Aug 4, 202610.8811.6310.7611.4511.458.43%1,190,213
Aug 3, 202610.6011.0210.1910.5610.56-0.75%727,435
Jul 31, 202611.4112.2310.5710.6410.64-5.34%1,379,014
Jul 30, 202611.4111.4310.3411.2411.247.56%1,472,709
Jul 29, 202611.3012.8110.4010.4510.45-7.36%1,583,460
Jul 28, 202610.9111.439.8611.2811.282.83%1,141,524
Jul 27, 202611.3611.5210.5910.9710.97-1.17%1,063,918
Jul 24, 202611.4311.5410.9411.1011.10-3.90%347,625
Jul 23, 202611.3712.3511.3411.5511.55-0.94%611,039
Jul 22, 202611.2912.2411.2711.6611.661.75%654,175
Jul 21, 202611.3511.6711.3211.4611.464.28%688,856
Jul 20, 202610.6711.4810.5410.9910.993.39%689,375
Jul 17, 20269.1610.809.0610.6310.6310.73%1,023,507
Jul 16, 202610.0710.399.489.609.60-6.80%943,766
Jul 15, 202610.2711.6010.1110.3010.302.39%1,483,659
Jul 14, 20269.6610.319.6610.0610.064.03%555,645
Jul 13, 20269.8810.169.569.679.67-3.49%437,120
Jul 10, 202610.3510.459.6310.0210.02-3.65%720,890
Jul 9, 202610.7810.9710.3110.4010.40-1.89%772,585
Jul 8, 20269.8910.699.8310.6010.604.64%1,419,975
Jul 7, 202610.4610.599.7910.1310.13-3.80%605,623
Jul 6, 202610.2210.619.9110.5310.533.64%624,551
Jul 2, 202611.0711.219.8210.1610.16-7.04%685,617
Jul 1, 202610.8011.3510.5510.9310.93-0.64%781,342
Jun 30, 202611.8311.8310.6911.0011.00-7.17%1,031,568
Jun 29, 202611.7112.7311.3311.8511.851.72%1,128,297
Jun 26, 202611.2411.709.8011.6511.65-9.90%2,305,664
Jun 25, 202614.0014.4112.5412.9312.93-3.65%1,332,840
Jun 24, 202613.7714.0812.9613.4213.42-2.82%629,566
Jun 23, 202613.3714.1513.2013.8113.81-1.64%733,131
Jun 22, 202615.7516.5013.9914.0414.04-10.00%1,192,145
Jun 18, 202615.4916.3815.0915.6015.604.35%1,312,214
Jun 17, 202614.7615.7813.7614.9514.953.75%1,095,095
Jun 16, 202613.7416.1513.5614.4114.413.15%1,647,686
Jun 15, 202615.2816.0013.7013.9713.971.67%2,448,199
Jun 12, 202613.1014.8412.7013.7413.745.21%1,281,847
Jun 11, 202612.6113.0911.7513.0613.063.73%1,062,052
Jun 10, 202612.8214.1212.5512.5912.59-3.52%883,963
Jun 9, 202612.6714.9811.9913.0513.054.07%2,079,422
Jun 8, 202613.1213.2611.9012.5412.54-1.26%1,466,960
Jun 5, 202615.2315.7412.1512.7012.70-19.52%2,645,649
Jun 4, 202614.6518.4814.6115.7815.78-1.07%3,860,204
Jun 3, 202612.1916.6312.1915.9515.9527.19%4,852,535
Jun 2, 202610.4313.0110.2212.5412.5419.54%3,310,248
Jun 1, 20269.5510.709.3610.4910.498.03%1,165,691
May 29, 20269.319.929.059.719.714.18%525,333
May 28, 20268.659.548.619.329.325.67%611,179
May 27, 20268.688.968.338.828.821.03%401,476
May 26, 20269.089.118.458.738.73-3.54%569,588
May 22, 20269.4010.189.009.059.05-3.83%1,865,173