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 — 2014

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2014-12-31$281.60$281.603,799
2014-12-30$284.80$284.805,401
2014-12-29$284.80$284.804,686
2014-12-26$289.60$289.609,124
2014-12-24$288.00$288.003,277
2014-12-23$288.00$288.008,994
2014-12-22$288.00$288.0011,528
2014-12-19$284.80$284.8014,519
2014-12-18$281.60$281.6014,046
2014-12-17$276.80$276.8012,521
2014-12-16$268.80$268.8015,967
2014-12-15$270.40$270.4012,353
2014-12-12$270.40$270.4011,729
2014-12-11$270.40$270.4013,361
2014-12-10$268.80$268.8010,499
2014-12-09$272.00$272.0042,021
2014-12-08$281.60$281.6023,319
2014-12-05$288.00$288.0037,583
2014-12-04$268.80$268.8012,169
2014-12-03$272.00$272.0030,274
2014-12-02$254.40$254.407,309
2014-12-01$246.40$246.407,084
2014-11-28$252.80$252.804,029
2014-11-26$257.60$257.606,975
2014-11-25$251.20$251.2010,005
2014-11-24$246.40$246.4011,186
2014-11-21$243.20$243.2015,060
2014-11-20$241.60$241.6016,473
2014-11-19$238.40$238.407,042
2014-11-18$241.60$241.609,145
2014-11-17$240.00$240.0010,469
2014-11-14$243.20$243.2014,199
2014-11-13$236.80$236.8010,717
2014-11-12$240.00$240.0010,731
2014-11-11$232.00$232.008,999
2014-11-10$233.60$233.6011,044
2014-11-07$225.60$225.604,780
2014-11-06$224.00$224.007,084
2014-11-05$232.00$232.009,489
2014-11-04$224.00$224.0022,074
2014-11-03$220.80$220.8025,858
2014-10-31$204.80$204.8028,671
2014-10-30$195.20$195.2021,118
2014-10-29$180.80$180.802,731
2014-10-28$185.60$185.6012,442
2014-10-27$169.60$169.607,194
2014-10-24$180.80$180.803,103
2014-10-23$177.60$177.602,889
2014-10-22$172.80$172.803,078
2014-10-21$176.00$176.002,415
2014-10-20$174.40$174.401,909
2014-10-17$176.00$176.004,140
2014-10-16$176.00$176.004,291
2014-10-15$171.20$171.206,883
2014-10-14$166.40$166.4012,404
2014-10-13$163.20$163.204,327
2014-10-10$163.20$163.203,641
2014-10-09$169.60$169.603,139
2014-10-08$176.00$176.009,808
2014-10-07$179.20$179.202,607
2014-10-06$184.00$184.002,986
2014-10-03$187.20$187.203,006
2014-10-02$185.60$185.602,428
2014-10-01$180.80$180.804,744
2014-09-30$185.60$185.603,231
2014-09-29$187.20$187.202,309
2014-09-26$185.60$185.602,583
2014-09-25$187.20$187.204,978
2014-09-24$193.60$193.602,493
2014-09-23$193.60$193.604,001
2014-09-22$193.60$193.603,368
2014-09-19$195.20$195.206,326
2014-09-18$195.20$195.202,348
2014-09-17$193.60$193.601,399
2014-09-16$195.20$195.202,146
2014-09-15$195.20$195.201,942
2014-09-12$200.00$200.002,445
2014-09-11$196.80$196.801,623
2014-09-10$195.20$195.201,770
2014-09-09$195.20$195.204,872
2014-09-08$195.20$195.201,683
2014-09-05$195.20$195.201,650
2014-09-04$196.80$196.803,410
2014-09-03$196.80$196.804,466
2014-09-02$200.00$200.003,333
2014-08-29$200.00$200.002,344
2014-08-28$198.40$198.402,701
2014-08-27$200.00$200.001,485
2014-08-26$200.00$200.003,659
2014-08-25$200.00$200.001,244
2014-08-22$200.00$200.001,331
2014-08-21$198.40$198.402,353
2014-08-20$196.80$196.808,815
2014-08-19$201.60$201.602,713
2014-08-18$201.60$201.603,941
2014-08-15$198.40$198.403,175
2014-08-14$198.40$198.403,846
2014-08-13$200.00$200.004,372
2014-08-12$200.00$200.003,137
2014-08-11$201.60$201.603,986
2014-08-08$196.80$196.803,210
2014-08-07$200.00$200.006,186
2014-08-06$200.00$200.0010,133
2014-08-05$198.40$198.402,676
2014-08-04$198.40$198.403,886
2014-08-01$196.80$196.804,681
2014-07-31$200.00$200.008,163
2014-07-30$198.40$198.404,244
2014-07-29$200.00$200.004,073
2014-07-28$200.00$200.005,037
2014-07-25$201.60$201.607,368
2014-07-24$204.80$204.8016,344
2014-07-23$203.20$203.206,733
2014-07-22$203.20$203.204,649
2014-07-21$206.40$206.406,408
2014-07-18$204.80$204.809,388
2014-07-17$198.40$198.404,839
2014-07-16$198.40$198.404,008
2014-07-15$200.00$200.006,516
2014-07-14$198.40$198.405,616
2014-07-11$203.20$203.202,476
2014-07-10$201.60$201.603,584
2014-07-09$204.80$204.804,496
2014-07-08$206.40$206.406,418
2014-07-07$206.40$206.404,355
2014-07-03$209.60$209.604,301
2014-07-02$206.40$206.4012,846
2014-07-01$200.00$200.0011,908
2014-06-30$195.20$195.2015,871
2014-06-27$185.60$185.6023,128
2014-06-26$190.40$190.401,636
2014-06-25$190.40$190.405,091
2014-06-24$190.40$190.404,442
2014-06-23$190.40$190.405,468
2014-06-20$192.00$192.0013,694
2014-06-19$187.20$187.206,001
2014-06-18$190.40$190.401,849
2014-06-17$192.00$192.005,518
2014-06-16$190.40$190.402,156
2014-06-13$193.60$193.605,299
2014-06-12$190.40$190.405,824
2014-06-11$187.20$187.201,800
2014-06-10$188.80$188.804,091
2014-06-09$187.20$187.202,546
2014-06-06$187.20$187.204,940
2014-06-05$185.60$185.605,148
2014-06-04$184.00$184.001,923
2014-06-03$182.40$182.407,670
2014-06-02$184.00$184.006,113
2014-05-30$182.40$182.409,949
2014-05-29$180.80$180.803,453
2014-05-28$182.40$182.403,921
2014-05-27$182.40$182.405,952
2014-05-23$179.20$179.203,374
2014-05-22$176.00$176.004,932
2014-05-21$174.40$174.406,889
2014-05-20$177.60$177.6011,770
2014-05-19$185.60$185.608,546
2014-05-16$187.20$187.206,015
2014-05-15$180.80$180.803,928
2014-05-14$179.20$179.205,733
2014-05-13$185.60$185.6012,251
2014-05-12$177.60$177.606,814
2014-05-09$174.40$174.4010,888
2014-05-08$164.80$164.8022,602
2014-05-07$158.40$158.4025,759
2014-05-06$171.20$171.208,199
2014-05-05$172.80$172.804,460
2014-05-02$174.40$174.407,103
2014-05-01$169.60$169.606,966
2014-04-30$172.80$172.806,022
2014-04-29$169.60$169.603,837
2014-04-28$172.80$172.806,401
2014-04-25$176.00$176.006,235
2014-04-24$179.20$179.202,539
2014-04-23$179.20$179.204,719
2014-04-22$182.40$182.404,886
2014-04-21$179.20$179.205,983
2014-04-17$180.80$180.804,013
2014-04-16$182.40$182.402,159
2014-04-15$180.80$180.805,249
2014-04-14$182.40$182.403,824
2014-04-11$182.40$182.404,781
2014-04-10$184.00$184.004,628
2014-04-09$187.20$187.203,602
2014-04-08$187.20$187.204,236
2014-04-07$184.00$184.009,375
2014-04-04$185.60$185.606,284
2014-04-03$190.40$190.403,013
2014-04-02$195.20$195.203,173
2014-04-01$195.20$195.204,871
2014-03-31$195.20$195.207,037
2014-03-28$187.20$187.202,569
2014-03-27$187.20$187.205,867
2014-03-26$185.60$185.606,583
2014-03-25$190.40$190.403,493
2014-03-24$193.60$193.605,623
2014-03-21$200.00$200.008,164
2014-03-20$196.80$196.801,906
2014-03-19$196.80$196.807,393
2014-03-18$196.80$196.803,625
2014-03-17$195.20$195.209,859
2014-03-14$190.40$190.408,360
2014-03-13$187.20$187.204,229
2014-03-12$187.20$187.207,688
2014-03-11$185.60$185.6013,446
2014-03-10$188.80$188.8017,939
2014-03-07$185.60$185.6010,706
2014-03-06$187.20$187.209,329
2014-03-05$180.80$180.8014,625
2014-03-04$185.60$185.6013,406
2014-03-03$182.40$182.407,874
2014-02-28$187.20$187.2010,321
2014-02-27$185.60$185.6011,461
2014-02-26$192.00$192.009,649
2014-02-25$195.20$195.205,964
2014-02-24$196.80$196.808,651
2014-02-21$192.00$192.008,759
2014-02-20$190.40$190.403,293
2014-02-19$187.20$187.205,354
2014-02-18$192.00$192.008,668
2014-02-14$184.00$184.0012,493
2014-02-13$190.40$190.405,712
2014-02-12$190.40$190.4017,680
2014-02-11$190.40$190.409,474
2014-02-10$188.80$188.807,308
2014-02-07$190.40$190.408,094
2014-02-06$190.40$190.408,028
2014-02-05$188.80$188.806,135
2014-02-04$192.00$192.005,321
2014-02-03$190.40$190.4011,261
2014-01-31$200.00$200.005,948
2014-01-30$203.20$203.2015,725
2014-01-29$203.20$203.2014,286
2014-01-28$204.80$204.807,753
2014-01-27$203.20$203.2012,928
2014-01-24$209.60$209.6011,424
2014-01-23$212.80$212.807,330
2014-01-22$214.40$214.407,843
2014-01-21$212.80$212.8017,193
2014-01-17$211.20$211.2021,900
2014-01-16$212.80$212.8032,334
2014-01-15$216.00$216.0042,535
2014-01-14$206.40$206.4094,708
2014-01-13$195.20$195.205,321
2014-01-10$196.80$196.806,766
2014-01-09$195.20$195.204,831
2014-01-08$195.20$195.204,802
2014-01-07$200.00$200.004,043
2014-01-06$198.40$198.404,084
2014-01-03$203.20$203.2013,296
2014-01-02$192.00$192.004,869