NASDAQ:QMCO | Historical Stock Price | QUANTUM CORP /DE/

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1999-08-02 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$2.74$11.43$47.72$199.28$832.22$3,475.501999-08-022026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$595.20$595.2010,363
2010-12-30$593.60$593.604,986
2010-12-29$601.60$601.609,742
2010-12-28$592.00$592.008,319
2010-12-27$608.00$608.0011,483
2010-12-23$584.00$584.007,476
2010-12-22$590.40$590.407,811
2010-12-21$598.40$598.408,721
2010-12-20$590.40$590.407,231
2010-12-17$595.20$595.2023,228
2010-12-16$588.80$588.8015,171
2010-12-15$592.00$592.0011,753
2010-12-14$579.20$579.2016,744
2010-12-13$614.40$614.4010,712
2010-12-10$627.20$627.2013,741
2010-12-09$624.00$624.0019,460
2010-12-08$625.60$625.609,113
2010-12-07$620.80$620.8016,971
2010-12-06$611.20$611.2014,495
2010-12-03$625.60$625.6014,454
2010-12-02$625.60$625.6022,811
2010-12-01$624.00$624.0051,407
2010-11-30$580.80$580.8023,918
2010-11-29$598.40$598.4013,174
2010-11-26$608.00$608.005,263
2010-11-24$600.00$600.0011,400
2010-11-23$584.00$584.0049,813
2010-11-22$601.60$601.6023,610
2010-11-19$585.60$585.6022,221
2010-11-18$571.20$571.2027,467
2010-11-17$550.40$550.4048,355
2010-11-16$500.80$500.8021,298
2010-11-15$521.60$521.6017,256
2010-11-12$521.60$521.6015,973
2010-11-11$537.60$537.6031,469
2010-11-10$545.60$545.6073,805
2010-11-09$523.20$523.2079,509
2010-11-08$550.40$550.408,661
2010-11-05$555.20$555.2013,056
2010-11-04$558.40$558.4022,298
2010-11-03$539.20$539.2012,928
2010-11-02$540.80$540.8031,305
2010-11-01$524.80$524.8029,868
2010-10-29$540.80$540.8027,571
2010-10-28$534.40$534.4098,604
2010-10-27$512.00$512.00102,511
2010-10-26$454.40$454.4014,867
2010-10-25$472.00$472.0025,146
2010-10-22$464.00$464.0014,970
2010-10-21$465.60$465.6024,823
2010-10-20$468.80$468.8035,345
2010-10-19$451.20$451.2048,505
2010-10-18$456.00$456.0027,444
2010-10-15$441.60$441.6030,971
2010-10-14$433.60$433.6061,794
2010-10-13$388.80$388.8030,998
2010-10-12$377.60$377.6011,683
2010-10-11$366.40$366.4016,314
2010-10-08$366.40$366.4063,125
2010-10-07$320.00$320.0023,521
2010-10-06$316.80$316.809,783
2010-10-05$323.20$323.2011,372
2010-10-04$310.40$310.4016,723
2010-10-01$334.40$334.4015,750
2010-09-30$339.20$339.2026,153
2010-09-29$323.20$323.2024,365
2010-09-28$307.20$307.2010,865
2010-09-27$299.20$299.2018,280
2010-09-24$288.00$288.0013,379
2010-09-23$280.00$280.0010,785
2010-09-22$296.00$296.0018,096
2010-09-21$294.40$294.4018,399
2010-09-20$281.60$281.6017,537
2010-09-17$278.40$278.4017,708
2010-09-16$267.20$267.2033,475
2010-09-15$244.80$244.804,379
2010-09-14$241.60$241.607,826
2010-09-13$251.20$251.207,451
2010-09-10$246.40$246.406,121
2010-09-09$248.00$248.0011,471
2010-09-08$246.40$246.406,531
2010-09-07$254.40$254.4011,121
2010-09-03$262.40$262.4017,538
2010-09-02$252.80$252.8011,373
2010-09-01$232.00$232.007,778
2010-08-31$230.40$230.4012,748
2010-08-30$220.80$220.8011,474
2010-08-27$228.80$228.8021,308
2010-08-26$214.40$214.4012,996
2010-08-25$220.80$220.8012,584
2010-08-24$225.60$225.6023,453
2010-08-23$211.20$211.206,192
2010-08-20$200.00$200.0014,579
2010-08-19$206.40$206.408,648
2010-08-18$214.40$214.4010,689
2010-08-17$225.60$225.6012,656
2010-08-16$212.80$212.8012,934
2010-08-13$212.80$212.8017,983
2010-08-12$198.40$198.4024,920
2010-08-11$198.40$198.4022,682
2010-08-10$216.00$216.005,957
2010-08-09$222.40$222.4011,621
2010-08-06$228.80$228.8022,798
2010-08-05$230.40$230.408,343
2010-08-04$238.40$238.409,337
2010-08-03$244.80$244.8010,133
2010-08-02$259.20$259.208,699
2010-07-30$256.00$256.0016,020
2010-07-29$246.40$246.4044,016
2010-07-28$323.20$323.204,743
2010-07-27$337.60$337.605,682
2010-07-26$336.00$336.005,410
2010-07-23$320.00$320.006,714
2010-07-22$305.60$305.607,759
2010-07-21$312.00$312.004,163
2010-07-20$318.40$318.404,505
2010-07-19$318.40$318.407,474
2010-07-16$313.60$313.607,585
2010-07-15$331.20$331.205,399
2010-07-14$339.20$339.207,998
2010-07-13$334.40$334.4010,653
2010-07-12$305.60$305.605,406
2010-07-09$308.80$308.805,784
2010-07-08$305.60$305.606,848
2010-07-07$305.60$305.6023,816
2010-07-06$267.20$267.208,863
2010-07-02$281.60$281.605,761
2010-07-01$297.60$297.6020,532
2010-06-30$300.80$300.808,694
2010-06-29$302.40$302.4027,226
2010-06-28$334.40$334.409,757
2010-06-25$352.00$352.0019,547
2010-06-24$337.60$337.609,216
2010-06-23$363.20$363.206,593
2010-06-22$358.40$358.409,864
2010-06-21$374.40$374.407,373
2010-06-18$392.00$392.009,395
2010-06-17$396.80$396.805,773
2010-06-16$379.20$379.206,083
2010-06-15$379.20$379.208,538
2010-06-14$355.20$355.206,783
2010-06-11$356.80$356.803,864
2010-06-10$348.80$348.8012,156
2010-06-09$336.00$336.0011,479
2010-06-08$347.20$347.2014,299
2010-06-07$364.80$364.8013,838
2010-06-04$364.80$364.8012,939
2010-06-03$390.40$390.407,980
2010-06-02$380.80$380.807,135
2010-06-01$364.80$364.8011,159
2010-05-28$376.00$376.006,331
2010-05-27$380.80$380.808,513
2010-05-26$356.80$356.809,349
2010-05-25$376.00$376.0013,881
2010-05-24$376.00$376.009,630
2010-05-21$369.60$369.6029,702
2010-05-20$380.80$380.8025,086
2010-05-19$400.00$400.0017,575
2010-05-18$428.80$428.8014,353
2010-05-17$430.40$430.4012,559
2010-05-14$444.80$444.8017,721
2010-05-13$452.80$452.8011,996
2010-05-12$460.80$460.8010,546
2010-05-11$449.60$449.606,860
2010-05-10$446.40$446.4011,970
2010-05-07$416.00$416.0014,577
2010-05-06$436.80$436.8019,321
2010-05-05$456.00$456.0010,291
2010-05-04$460.80$460.8010,319
2010-05-03$475.20$475.206,843
2010-04-30$464.00$464.0013,471
2010-04-29$472.00$472.006,295
2010-04-28$472.00$472.007,076
2010-04-27$467.20$467.2012,967
2010-04-26$475.20$475.2010,214
2010-04-23$470.40$470.4016,020
2010-04-22$465.60$465.606,373
2010-04-21$462.40$462.408,709
2010-04-20$462.40$462.4013,611
2010-04-19$460.80$460.8018,173
2010-04-16$460.80$460.8012,879
2010-04-15$460.80$460.8015,260
2010-04-14$449.60$449.6013,798
2010-04-13$449.60$449.606,221
2010-04-12$449.60$449.6010,278
2010-04-09$443.20$443.2010,276
2010-04-08$443.20$443.207,604
2010-04-07$441.60$441.607,951
2010-04-06$444.80$444.807,022
2010-04-05$425.60$425.607,072
2010-04-01$414.40$414.4010,421
2010-03-31$420.80$420.807,206
2010-03-30$432.00$432.004,478
2010-03-29$435.20$435.203,138
2010-03-26$433.60$433.604,456
2010-03-25$436.80$436.8012,491
2010-03-24$436.80$436.807,110
2010-03-23$446.40$446.408,474
2010-03-22$438.40$438.4013,906
2010-03-19$427.20$427.2014,929
2010-03-18$438.40$438.404,741
2010-03-17$433.60$433.6010,807
2010-03-16$448.00$448.005,868
2010-03-15$449.60$449.606,132
2010-03-12$467.20$467.208,413
2010-03-11$460.80$460.806,793
2010-03-10$448.00$448.0011,269
2010-03-09$448.00$448.0010,704
2010-03-08$446.40$446.406,623
2010-03-05$443.20$443.209,457
2010-03-04$419.20$419.204,819
2010-03-03$412.80$412.8010,924
2010-03-02$401.60$401.6020,736
2010-03-01$384.00$384.0013,724
2010-02-26$396.80$396.805,737
2010-02-25$398.40$398.405,306
2010-02-24$400.00$400.007,031
2010-02-23$408.00$408.009,159
2010-02-22$411.20$411.204,931
2010-02-19$416.00$416.005,749
2010-02-18$414.40$414.409,018
2010-02-17$419.20$419.207,621
2010-02-16$422.40$422.4013,368
2010-02-12$404.80$404.807,473
2010-02-11$404.80$404.808,263
2010-02-10$392.00$392.0012,483
2010-02-09$384.00$384.0010,010
2010-02-08$377.60$377.6018,835
2010-02-05$385.60$385.6016,798
2010-02-04$393.60$393.6028,311
2010-02-03$420.80$420.8016,804
2010-02-02$425.60$425.6018,498
2010-02-01$427.20$427.2031,563
2010-01-29$409.60$409.60103,025
2010-01-28$489.60$489.6024,915
2010-01-27$484.80$484.8015,199
2010-01-26$484.80$484.8025,173
2010-01-25$484.80$484.8014,284
2010-01-22$464.00$464.0018,667
2010-01-21$472.00$472.0028,424
2010-01-20$468.80$468.8011,774
2010-01-19$470.40$470.4013,061
2010-01-15$460.80$460.8018,175
2010-01-14$467.20$467.2021,409
2010-01-13$465.60$465.6029,973
2010-01-12$424.00$424.0052,609
2010-01-11$480.00$480.0013,015
2010-01-08$478.40$478.4017,898
2010-01-07$473.60$473.6016,129
2010-01-06$462.40$462.4015,158
2010-01-05$475.20$475.2030,571
2010-01-04$480.00$480.0036,209