Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
33.47
-0.54 (-1.57%)
At close: Oct 6, 2026, 4:00 PM EDT
33.71
+0.24 (0.72%)
After-hours: Oct 6, 2026, 7:13 PM EDT

Quantum Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 6, 202634.0235.4133.2933.4733.47-1.57%1,447,439
Oct 5, 202634.3935.6533.6434.0134.01-1.43%1,649,323
Oct 2, 202630.1035.1729.8534.5034.508.20%3,653,415
Oct 1, 202633.1934.3731.5131.8931.890.52%1,918,157
Sep 30, 202632.8333.1831.4031.7231.72-3.47%1,300,179
Sep 29, 202632.3234.6831.1732.8632.864.65%1,967,780
Sep 28, 202631.6532.9031.0731.4031.40-0.88%1,616,579
Sep 25, 202630.0133.0129.0231.6831.687.43%4,241,080
Sep 24, 202625.3932.0825.1029.4929.4913.55%5,219,085
Sep 23, 202625.4429.1524.5025.9725.971.25%3,691,574
Sep 22, 202626.0526.4924.6525.6525.65-1.72%1,105,435
Sep 21, 202626.0226.5025.0626.1026.104.03%1,097,529
Sep 18, 202624.8325.3124.3025.0925.090.60%1,874,028
Sep 17, 202624.6826.3924.5924.9424.944.66%1,451,288
Sep 16, 202623.5624.3722.9023.8323.832.45%759,232
Sep 15, 202622.9024.0722.6123.2623.261.91%875,105
Sep 14, 202622.6024.1421.8022.8322.83-3.20%961,388
Sep 11, 202623.0323.7222.3023.5823.582.39%786,221
Sep 10, 202623.5424.5422.9023.0323.03-4.99%987,463
Sep 9, 202624.4025.4924.0824.2424.24-0.90%861,644
Sep 8, 202624.7325.7524.3324.4624.46-1.09%1,445,347
Sep 4, 202624.4725.4823.9324.7324.731.77%1,048,916
Sep 3, 202622.8124.3721.7224.3024.306.67%795,489
Sep 2, 202624.0524.4222.2722.7822.78-5.75%917,340
Sep 1, 202623.8524.6823.0624.1724.17-0.66%861,847
Aug 31, 202621.9724.4121.4124.3324.339.30%1,205,296
Aug 28, 202623.4223.7221.9122.2622.26-5.52%729,094
Aug 27, 202623.5023.8522.8423.5623.561.51%878,878
Aug 26, 202622.3123.2621.7223.2123.213.66%858,658
Aug 25, 202621.9022.4121.0122.3922.393.85%965,559
Aug 24, 202621.3121.9120.4821.5621.56-3.10%925,635
Aug 21, 202620.8022.4019.7322.2522.258.59%1,466,735
Aug 20, 202621.5221.7919.7320.4920.49-5.97%1,461,517
Aug 19, 202623.2723.2721.2921.7921.79-7.36%1,862,782
Aug 18, 202623.8426.2823.4623.5223.52-5.62%1,596,759
Aug 17, 202624.8325.9523.7524.9224.92-4.56%2,094,629
Aug 14, 202624.6827.8024.1026.1126.115.79%4,277,968
Aug 13, 202621.7524.9321.5224.6824.6812.51%4,386,775
Aug 12, 202620.1022.2220.0121.9421.9413.07%5,059,958
Aug 11, 202614.5219.6013.9919.4019.4064.69%16,536,774
Aug 10, 202612.2012.4511.4411.7811.78-2.16%1,443,462
Aug 7, 202611.8812.1811.6512.0412.043.08%656,886
Aug 6, 202611.3912.1911.0611.6811.680.86%548,506
Aug 5, 202611.3311.9811.1311.5811.581.14%486,422
Aug 4, 202610.8811.6310.7611.4511.458.43%1,192,462
Aug 3, 202610.6011.0210.1910.5610.56-0.75%728,085
Jul 31, 202611.4112.2310.5710.6410.64-5.34%1,407,222
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