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 — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$371.20$371.208,723
2006-12-28$366.40$366.402,689
2006-12-27$376.00$376.002,946
2006-12-26$376.00$376.003,441
2006-12-22$363.20$363.202,316
2006-12-21$371.20$371.202,811
2006-12-20$368.00$368.002,844
2006-12-19$372.80$372.803,671
2006-12-18$368.00$368.005,016
2006-12-15$368.00$368.008,069
2006-12-14$372.80$372.804,114
2006-12-13$377.60$377.605,141
2006-12-12$371.20$371.203,026
2006-12-11$376.00$376.002,464
2006-12-08$371.20$371.202,941
2006-12-07$387.20$387.202,933
2006-12-06$388.80$388.802,643
2006-12-05$400.00$400.004,121
2006-12-04$392.00$392.005,376
2006-12-01$372.80$372.805,118
2006-11-30$377.60$377.604,582
2006-11-29$382.40$382.405,138
2006-11-28$376.00$376.006,731
2006-11-27$371.20$371.2010,958
2006-11-24$379.20$379.201,170
2006-11-22$379.20$379.201,831
2006-11-21$382.40$382.403,075
2006-11-20$384.00$384.007,400
2006-11-17$379.20$379.205,140
2006-11-16$380.80$380.806,506
2006-11-15$382.40$382.403,552
2006-11-14$376.00$376.0012,101
2006-11-13$371.20$371.2014,189
2006-11-10$356.80$356.8014,252
2006-11-09$350.40$350.4021,578
2006-11-08$316.80$316.806,349
2006-11-07$331.20$331.204,792
2006-11-06$336.00$336.008,757
2006-11-03$337.60$337.602,641
2006-11-02$339.20$339.204,382
2006-11-01$337.60$337.605,278
2006-10-31$348.80$348.804,363
2006-10-30$352.00$352.005,154
2006-10-27$361.60$361.607,312
2006-10-26$382.40$382.404,696
2006-10-25$372.80$372.803,286
2006-10-24$369.60$369.602,841
2006-10-23$372.80$372.802,393
2006-10-20$369.60$369.603,044
2006-10-19$374.40$374.405,458
2006-10-18$364.80$364.804,003
2006-10-17$369.60$369.602,549
2006-10-16$376.00$376.003,726
2006-10-13$374.40$374.409,137
2006-10-12$368.00$368.004,029
2006-10-11$355.20$355.202,845
2006-10-10$352.00$352.005,246
2006-10-09$364.80$364.802,783
2006-10-06$371.20$371.202,900
2006-10-05$369.60$369.604,784
2006-10-04$376.00$376.005,904
2006-10-03$353.60$353.602,666
2006-10-02$352.00$352.004,664
2006-09-29$348.80$348.804,934
2006-09-28$360.00$360.004,016
2006-09-27$366.40$366.403,722
2006-09-26$364.80$364.802,448
2006-09-25$369.60$369.603,616
2006-09-22$374.40$374.4010,631
2006-09-21$368.00$368.0017,548
2006-09-20$369.60$369.609,686
2006-09-19$368.00$368.0024,933
2006-09-18$350.40$350.4014,176
2006-09-15$358.40$358.4010,608
2006-09-14$369.60$369.605,246
2006-09-13$363.20$363.204,415
2006-09-12$363.20$363.205,093
2006-09-11$353.60$353.602,451
2006-09-08$348.80$348.802,795
2006-09-07$347.20$347.206,058
2006-09-06$356.80$356.806,163
2006-09-05$369.60$369.606,669
2006-09-01$361.60$361.605,302
2006-08-31$353.60$353.608,164
2006-08-30$350.40$350.407,883
2006-08-29$334.40$334.408,695
2006-08-28$320.00$320.004,909
2006-08-25$316.80$316.807,900
2006-08-24$331.20$331.203,050
2006-08-23$332.80$332.804,504
2006-08-22$344.00$344.003,486
2006-08-21$347.20$347.203,895
2006-08-18$352.00$352.002,833
2006-08-17$353.60$353.604,093
2006-08-16$336.00$336.004,038
2006-08-15$320.00$320.0011,968
2006-08-14$318.40$318.402,239
2006-08-11$312.00$312.001,888
2006-08-10$318.40$318.402,969
2006-08-09$310.40$310.403,188
2006-08-08$313.60$313.605,960
2006-08-07$313.60$313.603,597
2006-08-04$321.60$321.607,765
2006-08-03$318.40$318.404,140
2006-08-02$324.80$324.8011,188
2006-08-01$316.80$316.806,761
2006-07-31$344.00$344.002,598
2006-07-28$348.80$348.803,262
2006-07-27$345.60$345.606,159
2006-07-26$360.00$360.005,260
2006-07-25$366.40$366.402,379
2006-07-24$363.20$363.206,849
2006-07-21$342.40$342.404,751
2006-07-20$366.40$366.403,705
2006-07-19$366.40$366.408,413
2006-07-18$360.00$360.0012,011
2006-07-17$368.00$368.003,998
2006-07-14$371.20$371.204,712
2006-07-13$380.80$380.808,076
2006-07-12$392.00$392.002,344
2006-07-11$403.20$403.203,380
2006-07-10$393.60$393.603,480
2006-07-07$403.20$403.203,963
2006-07-06$409.60$409.604,024
2006-07-05$417.60$417.602,928
2006-07-03$425.60$425.601,429
2006-06-30$419.20$419.2010,686
2006-06-29$414.40$414.406,692
2006-06-28$414.40$414.403,166
2006-06-27$422.40$422.407,918
2006-06-26$435.20$435.206,687
2006-06-23$443.20$443.204,602
2006-06-22$438.40$438.402,354
2006-06-21$444.80$444.802,469
2006-06-20$440.00$440.003,306
2006-06-19$448.00$448.007,505
2006-06-16$456.00$456.0018,606
2006-06-15$476.80$476.802,672
2006-06-14$457.60$457.606,171
2006-06-13$456.00$456.004,934
2006-06-12$457.60$457.609,219
2006-06-09$457.60$457.604,024
2006-06-08$462.40$462.405,299
2006-06-07$467.20$467.206,090
2006-06-06$460.80$460.809,339
2006-06-05$464.00$464.004,294
2006-06-02$476.80$476.809,304
2006-06-01$480.00$480.004,976
2006-05-31$465.60$465.6010,441
2006-05-30$464.00$464.004,763
2006-05-26$472.00$472.002,207
2006-05-25$460.80$460.802,778
2006-05-24$452.80$452.803,571
2006-05-23$452.80$452.803,601
2006-05-22$459.20$459.202,698
2006-05-19$460.80$460.802,878
2006-05-18$454.40$454.403,618
2006-05-17$444.80$444.803,038
2006-05-16$459.20$459.202,194
2006-05-15$459.20$459.203,897
2006-05-12$457.60$457.6014,496
2006-05-11$459.20$459.2012,092
2006-05-10$484.80$484.804,110
2006-05-09$484.80$484.806,792
2006-05-08$491.20$491.204,164
2006-05-05$491.20$491.204,863
2006-05-04$486.40$486.409,998
2006-05-03$481.60$481.6033,104
2006-05-02$556.80$556.8011,763
2006-05-01$534.40$534.403,960
2006-04-28$547.20$547.202,206
2006-04-27$561.60$561.603,027
2006-04-26$560.00$560.002,353
2006-04-25$553.60$553.603,227
2006-04-24$558.40$558.402,848
2006-04-21$572.80$572.803,398
2006-04-20$593.60$593.602,794
2006-04-19$588.80$588.802,279
2006-04-18$592.00$592.003,601
2006-04-17$572.80$572.803,703
2006-04-13$563.20$563.2010,183
2006-04-12$576.00$576.003,203
2006-04-11$572.80$572.806,641
2006-04-10$593.60$593.602,893
2006-04-07$593.60$593.603,819
2006-04-06$601.60$601.603,343
2006-04-05$598.40$598.402,616
2006-04-04$598.40$598.403,528
2006-04-03$596.80$596.803,641
2006-03-31$598.40$598.402,611
2006-03-30$593.60$593.602,833
2006-03-29$608.00$608.003,357
2006-03-28$592.00$592.002,373
2006-03-27$603.20$603.206,007
2006-03-24$616.00$616.004,745
2006-03-23$620.80$620.804,189
2006-03-22$624.00$624.005,540
2006-03-21$598.40$598.406,020
2006-03-20$595.20$595.204,108
2006-03-17$609.60$609.609,226
2006-03-16$614.40$614.403,095
2006-03-15$632.00$632.003,451
2006-03-14$600.00$600.003,694
2006-03-13$596.80$596.803,483
2006-03-10$582.40$582.402,866
2006-03-09$580.80$580.804,269
2006-03-08$572.80$572.802,459
2006-03-07$577.60$577.607,542
2006-03-06$595.20$595.206,821
2006-03-03$601.60$601.603,984
2006-03-02$595.20$595.205,993
2006-03-01$598.40$598.408,409
2006-02-28$571.20$571.2012,219
2006-02-27$572.80$572.808,284
2006-02-24$568.00$568.003,667
2006-02-23$568.00$568.005,635
2006-02-22$561.60$561.602,993
2006-02-21$556.80$556.804,669
2006-02-17$563.20$563.202,841
2006-02-16$566.40$566.401,721
2006-02-15$564.80$564.804,841
2006-02-14$558.40$558.4019,409
2006-02-13$556.80$556.803,808
2006-02-10$532.80$532.805,423
2006-02-09$540.80$540.804,587
2006-02-08$558.40$558.404,158
2006-02-07$553.60$553.605,686
2006-02-06$558.40$558.405,472
2006-02-03$532.80$532.807,444
2006-02-02$544.00$544.007,406
2006-02-01$550.40$550.4010,534
2006-01-31$568.00$568.0011,571
2006-01-30$556.80$556.806,004
2006-01-27$547.20$547.203,231
2006-01-26$558.40$558.405,216
2006-01-25$552.00$552.003,758
2006-01-24$558.40$558.4014,777
2006-01-23$569.60$569.606,394
2006-01-20$552.00$552.0015,271
2006-01-19$529.60$529.607,172
2006-01-18$491.20$491.203,446
2006-01-17$500.80$500.804,163
2006-01-13$507.20$507.202,981
2006-01-12$492.80$492.802,293
2006-01-11$492.80$492.803,458
2006-01-10$499.20$499.208,434
2006-01-09$488.00$488.002,743
2006-01-06$484.80$484.803,858
2006-01-05$484.80$484.802,448
2006-01-04$483.20$483.208,334
2006-01-03$488.00$488.006,533