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.

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Historical Stock Price — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$419.20$419.204,317
2004-12-30$422.40$422.4010,762
2004-12-29$416.00$416.005,484
2004-12-28$401.60$401.604,193
2004-12-27$406.40$406.405,195
2004-12-23$416.00$416.005,132
2004-12-22$404.80$404.805,334
2004-12-21$395.20$395.206,262
2004-12-20$384.00$384.0011,234
2004-12-17$379.20$379.2079,924
2004-12-16$393.60$393.605,171
2004-12-15$403.20$403.205,138
2004-12-14$384.00$384.005,499
2004-12-13$385.60$385.606,558
2004-12-10$390.40$390.404,073
2004-12-09$398.40$398.408,474
2004-12-08$420.80$420.805,185
2004-12-07$408.00$408.005,757
2004-12-06$436.80$436.805,156
2004-12-03$452.80$452.804,504
2004-12-02$475.20$475.202,760
2004-12-01$478.40$478.404,909
2004-11-30$457.60$457.602,452
2004-11-29$454.40$454.403,271
2004-11-26$451.20$451.20921
2004-11-24$456.00$456.002,663
2004-11-23$468.80$468.803,991
2004-11-22$457.60$457.603,673
2004-11-19$440.00$440.002,706
2004-11-18$452.80$452.801,973
2004-11-17$452.80$452.803,683
2004-11-16$456.00$456.002,621
2004-11-15$475.20$475.203,748
2004-11-12$484.80$484.802,976
2004-11-11$467.20$467.204,904
2004-11-10$446.40$446.402,196
2004-11-09$452.80$452.802,494
2004-11-08$425.60$425.604,704
2004-11-05$457.60$457.602,143
2004-11-04$448.00$448.002,549
2004-11-03$446.40$446.404,618
2004-11-02$449.60$449.603,558
2004-11-01$446.40$446.402,506
2004-10-29$428.80$428.802,385
2004-10-28$443.20$443.202,899
2004-10-27$444.80$444.803,903
2004-10-26$412.80$412.806,636
2004-10-25$414.40$414.404,861
2004-10-22$387.20$387.203,105
2004-10-21$384.00$384.007,529
2004-10-20$384.00$384.004,851
2004-10-19$379.20$379.202,976
2004-10-18$364.80$364.802,534
2004-10-15$360.00$360.004,338
2004-10-14$361.60$361.602,578
2004-10-13$363.20$363.202,863
2004-10-12$364.80$364.802,117
2004-10-11$366.40$366.401,693
2004-10-08$353.60$353.6012,052
2004-10-07$369.60$369.601,761
2004-10-06$400.00$400.0010,392
2004-10-05$395.20$395.201,139
2004-10-04$395.20$395.203,232
2004-10-01$396.80$396.805,276
2004-09-30$369.60$369.606,420
2004-09-29$372.80$372.808,858
2004-09-28$348.80$348.801,412
2004-09-27$337.60$337.603,865
2004-09-24$353.60$353.602,178
2004-09-23$363.20$363.201,163
2004-09-22$360.00$360.002,643
2004-09-21$368.00$368.002,738
2004-09-20$363.20$363.201,520
2004-09-17$368.00$368.003,803
2004-09-16$368.00$368.001,854
2004-09-15$368.00$368.001,231
2004-09-14$376.00$376.001,917
2004-09-13$382.40$382.401,070
2004-09-10$379.20$379.202,496
2004-09-09$390.40$390.402,692
2004-09-08$376.00$376.002,654
2004-09-07$384.00$384.001,886
2004-09-03$377.60$377.602,531
2004-09-02$398.40$398.405,211
2004-09-01$388.80$388.806,843
2004-08-31$376.00$376.003,132
2004-08-30$368.00$368.002,999
2004-08-27$369.60$369.604,157
2004-08-26$344.00$344.002,206
2004-08-25$356.80$356.802,602
2004-08-24$361.60$361.604,364
2004-08-23$348.80$348.803,044
2004-08-20$350.40$350.402,823
2004-08-19$347.20$347.206,195
2004-08-18$350.40$350.403,588
2004-08-17$342.40$342.403,157
2004-08-16$350.40$350.402,862
2004-08-13$334.40$334.402,713
2004-08-12$339.20$339.206,311
2004-08-11$363.20$363.204,640
2004-08-10$382.40$382.401,384
2004-08-09$376.00$376.003,032
2004-08-06$380.80$380.803,389
2004-08-05$384.00$384.005,739
2004-08-04$384.00$384.003,583
2004-08-03$376.00$376.003,778
2004-08-02$377.60$377.606,366
2004-07-30$390.40$390.402,850
2004-07-29$401.60$401.603,261
2004-07-28$404.80$404.809,581
2004-07-27$428.80$428.806,631
2004-07-26$444.80$444.809,846
2004-07-23$448.00$448.003,049
2004-07-22$451.20$451.203,255
2004-07-21$448.00$448.005,519
2004-07-20$454.40$454.403,133
2004-07-19$435.20$435.202,531
2004-07-16$432.00$432.003,891
2004-07-15$430.40$430.401,586
2004-07-14$417.60$417.606,247
2004-07-13$427.20$427.204,456
2004-07-12$427.20$427.202,601
2004-07-09$425.60$425.603,309
2004-07-08$420.80$420.803,474
2004-07-07$428.80$428.802,764
2004-07-06$441.60$441.603,951
2004-07-02$465.60$465.601,554
2004-07-01$480.00$480.003,215
2004-06-30$496.00$496.004,393
2004-06-29$496.00$496.002,768
2004-06-28$494.40$494.402,266
2004-06-25$496.00$496.004,153
2004-06-24$499.20$499.203,011
2004-06-23$504.00$504.003,622
2004-06-22$488.00$488.006,161
2004-06-21$475.20$475.202,141
2004-06-18$478.40$478.403,751
2004-06-17$470.40$470.402,153
2004-06-16$481.60$481.604,128
2004-06-15$488.00$488.006,007
2004-06-14$475.20$475.206,988
2004-06-10$476.80$476.806,039
2004-06-09$472.00$472.005,320
2004-06-08$476.80$476.802,440
2004-06-07$468.80$468.801,794
2004-06-04$456.00$456.003,423
2004-06-03$427.20$427.207,411
2004-06-02$440.00$440.0024,587
2004-06-01$454.40$454.405,163
2004-05-28$472.00$472.001,988
2004-05-27$467.20$467.206,670
2004-05-26$481.60$481.604,964
2004-05-25$460.80$460.805,586
2004-05-24$438.40$438.404,320
2004-05-21$408.00$408.0018,325
2004-05-20$395.20$395.208,215
2004-05-19$408.00$408.0018,889
2004-05-18$398.40$398.4010,388
2004-05-17$400.00$400.006,835
2004-05-14$412.80$412.806,361
2004-05-13$422.40$422.403,466
2004-05-12$424.00$424.0013,679
2004-05-11$432.00$432.007,883
2004-05-10$448.00$448.003,778
2004-05-07$459.20$459.204,902
2004-05-06$476.80$476.8015,753
2004-05-05$508.80$508.804,746
2004-05-04$534.40$534.406,613
2004-05-03$500.80$500.8010,470
2004-04-30$500.80$500.805,325
2004-04-29$520.00$520.0026,298
2004-04-28$528.00$528.007,554
2004-04-27$548.80$548.802,786
2004-04-26$544.00$544.002,492
2004-04-23$532.80$532.803,302
2004-04-22$542.40$542.403,177
2004-04-21$550.40$550.407,108
2004-04-20$556.80$556.804,811
2004-04-19$563.20$563.202,373
2004-04-16$572.80$572.806,723
2004-04-15$576.00$576.003,047
2004-04-14$576.00$576.003,125
2004-04-13$576.00$576.005,701
2004-04-12$587.20$587.204,341
2004-04-08$593.60$593.604,604
2004-04-07$620.80$620.808,383
2004-04-06$577.60$577.602,316
2004-04-05$596.80$596.802,604
2004-04-02$582.40$582.405,796
2004-04-01$582.40$582.405,936
2004-03-31$592.00$592.005,199
2004-03-30$592.00$592.003,809
2004-03-29$588.80$588.803,854
2004-03-26$584.00$584.005,114
2004-03-25$592.00$592.004,516
2004-03-24$577.60$577.604,426
2004-03-23$580.80$580.804,110
2004-03-22$600.00$600.005,386
2004-03-19$616.00$616.0012,113
2004-03-18$617.60$617.609,544
2004-03-17$606.40$606.405,060
2004-03-16$574.40$574.4012,653
2004-03-15$587.20$587.206,896
2004-03-12$604.80$604.803,922
2004-03-11$587.20$587.208,360
2004-03-10$571.20$571.2015,576
2004-03-09$604.80$604.8020,657
2004-03-08$595.20$595.207,282
2004-03-05$619.20$619.205,578
2004-03-04$619.20$619.207,191
2004-03-03$624.00$624.003,010
2004-03-02$635.20$635.202,877
2004-03-01$644.80$644.804,481
2004-02-27$616.00$616.007,228
2004-02-26$630.40$630.409,097
2004-02-25$638.40$638.405,964
2004-02-24$604.80$604.806,189
2004-02-23$592.00$592.009,263
2004-02-20$651.20$651.205,299
2004-02-19$648.00$648.007,672
2004-02-18$654.40$654.406,676
2004-02-17$670.40$670.4017,189
2004-02-13$617.60$617.605,436
2004-02-12$620.80$620.804,325
2004-02-11$638.40$638.405,781
2004-02-10$648.00$648.005,204
2004-02-09$632.00$632.006,711
2004-02-06$622.40$622.4011,074
2004-02-05$612.80$612.8012,011
2004-02-04$579.20$579.2018,616
2004-02-03$576.00$576.0015,585
2004-02-02$590.40$590.408,700
2004-01-30$584.00$584.009,774
2004-01-29$584.00$584.007,828
2004-01-28$590.40$590.4030,591
2004-01-27$611.20$611.2036,759
2004-01-26$604.80$604.808,943
2004-01-23$572.80$572.803,870
2004-01-22$574.40$574.405,661
2004-01-21$576.00$576.0018,244
2004-01-20$624.00$624.005,970
2004-01-16$624.00$624.0014,635
2004-01-15$608.00$608.0011,234
2004-01-14$596.80$596.8014,484
2004-01-13$596.80$596.809,078
2004-01-12$617.60$617.609,891
2004-01-09$596.80$596.8012,211
2004-01-08$619.20$619.206,579
2004-01-07$588.80$588.8010,988
2004-01-06$590.40$590.4016,978
2004-01-05$568.00$568.0025,216
2004-01-02$510.40$510.403,491