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 — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$488.00$488.003,333
2005-12-29$488.00$488.003,539
2005-12-28$491.20$491.201,997
2005-12-27$502.40$502.404,836
2005-12-23$507.20$507.202,229
2005-12-22$504.00$504.002,537
2005-12-21$504.00$504.004,976
2005-12-20$502.40$502.403,973
2005-12-19$496.00$496.005,124
2005-12-16$494.40$494.4010,376
2005-12-15$476.80$476.805,406
2005-12-14$488.00$488.003,593
2005-12-13$489.60$489.602,871
2005-12-12$496.00$496.004,561
2005-12-09$507.20$507.202,121
2005-12-08$507.20$507.205,358
2005-12-07$510.40$510.404,402
2005-12-06$497.60$497.606,697
2005-12-05$483.20$483.202,973
2005-12-02$491.20$491.203,658
2005-12-01$486.40$486.403,533
2005-11-30$478.40$478.404,674
2005-11-29$472.00$472.003,067
2005-11-28$472.00$472.002,660
2005-11-25$473.60$473.60816
2005-11-23$476.80$476.801,779
2005-11-22$481.60$481.601,956
2005-11-21$492.80$492.802,887
2005-11-18$480.00$480.001,750
2005-11-17$478.40$478.401,458
2005-11-16$475.20$475.206,907
2005-11-15$473.60$473.608,922
2005-11-14$476.80$476.801,461
2005-11-11$483.20$483.201,967
2005-11-10$483.20$483.201,920
2005-11-09$478.40$478.401,749
2005-11-08$478.40$478.401,666
2005-11-07$481.60$481.603,520
2005-11-04$494.40$494.401,389
2005-11-03$491.20$491.202,851
2005-11-02$496.00$496.003,918
2005-11-01$486.40$486.403,184
2005-10-31$483.20$483.203,836
2005-10-28$459.20$459.203,944
2005-10-27$457.60$457.604,609
2005-10-26$456.00$456.002,891
2005-10-25$464.00$464.002,986
2005-10-24$481.60$481.601,444
2005-10-21$468.80$468.801,243
2005-10-20$470.40$470.401,726
2005-10-19$492.80$492.802,728
2005-10-18$476.80$476.802,291
2005-10-17$483.20$483.201,813
2005-10-14$481.60$481.602,956
2005-10-13$476.80$476.804,116
2005-10-12$468.80$468.802,879
2005-10-11$462.40$462.403,633
2005-10-10$460.80$460.802,576
2005-10-07$475.20$475.202,804
2005-10-06$460.80$460.805,402
2005-10-05$449.60$449.604,044
2005-10-04$473.60$473.602,788
2005-10-03$481.60$481.602,444
2005-09-30$494.40$494.403,311
2005-09-29$488.00$488.002,913
2005-09-28$480.00$480.006,441
2005-09-27$462.40$462.402,073
2005-09-26$460.80$460.802,642
2005-09-23$464.00$464.001,493
2005-09-22$464.00$464.003,561
2005-09-21$441.60$441.603,286
2005-09-20$441.60$441.601,798
2005-09-19$454.40$454.401,924
2005-09-16$459.20$459.209,544
2005-09-15$444.80$444.808,366
2005-09-14$448.00$448.001,721
2005-09-13$452.80$452.801,493
2005-09-12$454.40$454.401,315
2005-09-09$449.60$449.604,404
2005-09-08$449.60$449.601,273
2005-09-07$456.00$456.001,894
2005-09-06$462.40$462.401,671
2005-09-02$454.40$454.402,261
2005-09-01$464.00$464.002,584
2005-08-31$459.20$459.203,869
2005-08-30$449.60$449.602,517
2005-08-29$448.00$448.002,842
2005-08-26$451.20$451.206,418
2005-08-25$470.40$470.404,361
2005-08-24$480.00$480.004,643
2005-08-23$470.40$470.402,799
2005-08-22$470.40$470.404,348
2005-08-19$446.40$446.402,112
2005-08-18$441.60$441.602,283
2005-08-17$446.40$446.403,976
2005-08-16$452.80$452.802,323
2005-08-15$467.20$467.203,871
2005-08-12$451.20$451.202,020
2005-08-11$460.80$460.801,094
2005-08-10$460.80$460.804,394
2005-08-09$468.80$468.8021,138
2005-08-08$465.60$465.603,034
2005-08-05$470.40$470.404,326
2005-08-04$467.20$467.204,344
2005-08-03$470.40$470.4011,569
2005-08-02$460.80$460.802,892
2005-08-01$451.20$451.204,315
2005-07-29$444.80$444.804,059
2005-07-28$428.80$428.808,888
2005-07-27$425.60$425.6023,663
2005-07-26$500.80$500.801,911
2005-07-25$486.40$486.401,478
2005-07-22$497.60$497.602,568
2005-07-21$488.00$488.003,810
2005-07-20$502.40$502.401,719
2005-07-19$492.80$492.803,343
2005-07-18$476.80$476.802,228
2005-07-15$489.60$489.601,360
2005-07-14$488.00$488.007,869
2005-07-13$507.20$507.207,308
2005-07-12$500.80$500.807,099
2005-07-11$497.60$497.605,496
2005-07-08$484.80$484.803,223
2005-07-07$475.20$475.201,901
2005-07-06$480.00$480.003,917
2005-07-05$486.40$486.402,585
2005-07-01$472.00$472.00934
2005-06-30$475.20$475.202,295
2005-06-29$478.40$478.404,139
2005-06-28$467.20$467.203,665
2005-06-27$459.20$459.202,738
2005-06-24$459.20$459.205,788
2005-06-23$440.00$440.003,247
2005-06-22$459.20$459.202,312
2005-06-21$451.20$451.208,494
2005-06-20$464.00$464.007,364
2005-06-17$473.60$473.608,317
2005-06-16$462.40$462.404,313
2005-06-15$448.00$448.005,229
2005-06-14$446.40$446.403,073
2005-06-13$433.60$433.602,871
2005-06-10$446.40$446.402,136
2005-06-09$452.80$452.8010,014
2005-06-08$456.00$456.0011,316
2005-06-07$422.40$422.404,670
2005-06-06$414.40$414.401,727
2005-06-03$416.00$416.004,948
2005-06-02$419.20$419.209,253
2005-06-01$417.60$417.609,488
2005-05-31$416.00$416.009,778
2005-05-27$430.40$430.401,366
2005-05-26$428.80$428.808,929
2005-05-25$433.60$433.604,504
2005-05-24$435.20$435.209,729
2005-05-23$441.60$441.6013,549
2005-05-20$411.20$411.20904
2005-05-19$416.00$416.001,553
2005-05-18$420.80$420.802,439
2005-05-17$403.20$403.203,470
2005-05-16$401.60$401.608,138
2005-05-13$398.40$398.403,158
2005-05-12$396.80$396.803,513
2005-05-11$412.80$412.806,151
2005-05-10$382.40$382.402,536
2005-05-09$392.00$392.001,759
2005-05-06$384.00$384.003,226
2005-05-05$384.00$384.003,258
2005-05-04$388.80$388.801,966
2005-05-03$392.00$392.002,388
2005-05-02$388.80$388.802,746
2005-04-29$384.00$384.002,605
2005-04-28$376.00$376.005,952
2005-04-27$366.40$366.402,064
2005-04-26$368.00$368.002,985
2005-04-25$392.00$392.002,077
2005-04-22$396.80$396.803,955
2005-04-21$392.00$392.004,914
2005-04-20$382.40$382.404,834
2005-04-19$390.40$390.403,831
2005-04-18$390.40$390.402,356
2005-04-15$377.60$377.603,191
2005-04-14$392.00$392.004,515
2005-04-13$409.60$409.603,414
2005-04-12$428.80$428.803,468
2005-04-11$430.40$430.402,018
2005-04-08$430.40$430.402,331
2005-04-07$440.00$440.001,894
2005-04-06$454.40$454.403,010
2005-04-05$456.00$456.002,393
2005-04-04$459.20$459.202,770
2005-04-01$448.00$448.002,698
2005-03-31$465.60$465.603,745
2005-03-30$451.20$451.203,254
2005-03-29$432.00$432.003,556
2005-03-28$428.80$428.802,479
2005-03-24$424.00$424.002,858
2005-03-23$419.20$419.2010,469
2005-03-22$441.60$441.603,140
2005-03-21$460.80$460.801,398
2005-03-18$460.80$460.806,681
2005-03-17$465.60$465.603,856
2005-03-16$462.40$462.401,649
2005-03-15$454.40$454.402,325
2005-03-14$465.60$465.601,426
2005-03-11$465.60$465.602,451
2005-03-10$470.40$470.402,588
2005-03-09$483.20$483.208,587
2005-03-08$489.60$489.603,985
2005-03-07$488.00$488.005,066
2005-03-04$476.80$476.802,404
2005-03-03$472.00$472.003,116
2005-03-02$473.60$473.603,751
2005-03-01$473.60$473.605,084
2005-02-28$462.40$462.402,566
2005-02-25$468.80$468.803,881
2005-02-24$449.60$449.602,221
2005-02-23$440.00$440.002,902
2005-02-22$433.60$433.606,749
2005-02-18$456.00$456.002,201
2005-02-17$462.40$462.402,096
2005-02-16$478.40$478.402,489
2005-02-15$465.60$465.603,653
2005-02-14$468.80$468.802,548
2005-02-11$483.20$483.202,434
2005-02-10$478.40$478.404,253
2005-02-09$483.20$483.204,271
2005-02-08$494.40$494.402,609
2005-02-07$488.00$488.002,809
2005-02-04$491.20$491.204,747
2005-02-03$492.80$492.808,639
2005-02-02$502.40$502.408,994
2005-02-01$496.00$496.0017,452
2005-01-31$475.20$475.2029,026
2005-01-28$440.00$440.004,277
2005-01-27$435.20$435.204,708
2005-01-26$441.60$441.606,332
2005-01-25$441.60$441.604,897
2005-01-24$443.20$443.2013,291
2005-01-21$433.60$433.605,759
2005-01-20$454.40$454.4015,359
2005-01-19$420.80$420.808,402
2005-01-18$424.00$424.004,903
2005-01-14$414.40$414.403,084
2005-01-13$401.60$401.606,301
2005-01-12$401.60$401.609,299
2005-01-11$422.40$422.405,981
2005-01-10$414.40$414.403,213
2005-01-07$408.00$408.004,389
2005-01-06$412.80$412.806,187
2005-01-05$404.80$404.804,145
2005-01-04$409.60$409.606,823
2005-01-03$416.00$416.004,154