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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$148.40$148.402,825
2019-12-30$144.00$144.005,625
2019-12-27$147.00$147.003,135
2019-12-26$146.00$146.004,675
2019-12-24$143.00$143.006,275
2019-12-23$140.20$140.2011,125
2019-12-20$128.00$128.002,430
2019-12-19$127.00$127.00310
2019-12-18$124.60$124.6014,845
2019-12-17$126.20$126.202,230
2019-12-16$129.40$129.405,120
2019-12-13$125.00$125.0010,880
2019-12-12$121.20$121.208,920
2019-12-11$118.00$118.001,360
2019-12-10$119.00$119.0028,815
2019-12-09$115.00$115.00380
2019-12-06$115.00$115.003,375
2019-12-05$110.60$110.603,480
2019-12-04$115.00$115.00245
2019-12-03$116.00$116.0049,255
2019-12-02$112.80$112.80380
2019-11-29$116.00$116.001,975
2019-11-27$115.00$115.001,660
2019-11-26$116.60$116.602,845
2019-11-25$114.00$114.001,710
2019-11-22$110.00$110.001,445
2019-11-21$111.60$111.602,030
2019-11-20$112.20$112.20860
2019-11-19$117.40$117.401,085
2019-11-18$118.00$118.006,470
2019-11-15$117.00$117.002,635
2019-11-14$116.40$116.401,630
2019-11-13$116.00$116.00765
2019-11-12$116.60$116.601,940
2019-11-11$117.20$117.204,040
2019-11-08$120.00$120.009,265
2019-11-07$122.40$122.40955
2019-11-06$122.00$122.009,220
2019-11-05$124.00$124.003,900
2019-11-04$121.60$121.601,865
2019-11-01$120.00$120.002,085
2019-10-31$121.20$121.201,670
2019-10-30$120.00$120.002,815
2019-10-29$121.40$121.40600
2019-10-28$121.00$121.001,825
2019-10-25$120.00$120.003,105
2019-10-24$119.40$119.40915
2019-10-23$119.60$119.601,225
2019-10-22$120.20$120.206,020
2019-10-21$118.80$118.801,520
2019-10-18$118.60$118.601,165
2019-10-17$120.80$120.804,680
2019-10-16$119.00$119.004,510
2019-10-15$114.80$114.801,110
2019-10-14$112.20$112.20465
2019-10-11$111.00$111.00120
2019-10-10$113.00$113.00645
2019-10-09$112.00$112.00185
2019-10-08$111.00$111.001,005
2019-10-07$113.80$113.801,935
2019-10-04$106.00$106.004,635
2019-10-03$106.20$106.202,835
2019-10-02$109.60$109.60610
2019-10-01$109.00$109.001,430
2019-09-30$114.00$114.003,605
2019-09-27$113.00$113.001,980
2019-09-26$117.60$117.60900
2019-09-25$121.00$121.001,060
2019-09-24$123.40$123.402,855
2019-09-23$122.00$122.001,875
2019-09-20$124.00$124.00885
2019-09-19$122.40$122.40680
2019-09-18$124.20$124.20890
2019-09-17$124.20$124.201,600
2019-09-16$125.20$125.201,385
2019-09-13$123.80$123.801,810
2019-09-12$122.00$122.001,620
2019-09-11$123.40$123.407,805
2019-09-10$120.00$120.005,035
2019-09-09$119.00$119.001,215
2019-09-06$118.40$118.40950
2019-09-05$120.00$120.006,780
2019-09-04$123.20$123.205,985
2019-09-03$119.00$119.002,295
2019-08-30$119.80$119.801,635
2019-08-29$119.20$119.204,460
2019-08-28$116.80$116.802,365
2019-08-27$116.00$116.002,620
2019-08-26$118.80$118.801,940
2019-08-23$119.20$119.204,760
2019-08-22$120.00$120.007,970
2019-08-21$119.40$119.406,640
2019-08-20$116.00$116.004,420
2019-08-19$114.00$114.005,140
2019-08-16$118.00$118.003,035
2019-08-15$112.20$112.206,570
2019-08-14$108.00$108.0013,025
2019-08-13$113.40$113.4026,080
2019-08-12$99.60$99.6014,920
2019-08-09$101.00$101.0022,810
2019-08-08$99.80$99.808,215
2019-08-07$100.00$100.0079,235
2019-08-06$73.80$73.808,480
2019-08-05$71.00$71.0010,015
2019-08-02$64.00$64.00525
2019-08-01$64.20$64.201,300
2019-07-31$64.00$64.002,795
2019-07-30$63.20$63.201,765
2019-07-29$63.20$63.201,670
2019-07-26$63.60$63.602,035
2019-07-25$64.60$64.601,915
2019-07-24$60.80$60.80900
2019-07-23$59.20$59.20715
2019-07-22$60.00$60.00880
2019-07-19$62.60$62.60485
2019-07-18$64.20$64.203,880
2019-07-17$63.80$63.804,265
2019-07-16$63.40$63.402,345
2019-07-15$60.40$60.403,105
2019-07-12$59.00$59.005,375
2019-07-11$58.00$58.002,250
2019-07-10$56.40$56.402,315
2019-07-09$55.00$55.001,055
2019-07-08$54.00$54.001,445
2019-07-05$52.60$52.601,250
2019-07-03$55.80$55.80755
2019-07-02$52.80$52.80715
2019-07-01$52.80$52.80645
2019-06-28$53.00$53.00380
2019-06-27$54.20$54.201,980
2019-06-26$55.40$55.401,815
2019-06-25$53.80$53.8058,035
2019-06-24$53.20$53.20240
2019-06-21$54.00$54.00315
2019-06-20$54.00$54.003,345
2019-06-19$53.40$53.40215
2019-06-18$53.00$53.001,825
2019-06-17$53.40$53.402,610
2019-06-14$53.00$53.00655
2019-06-13$53.00$53.00410
2019-06-12$55.20$55.201,075
2019-06-11$55.20$55.201,150
2019-06-10$56.20$56.201,090
2019-06-07$56.00$56.00740
2019-06-06$55.00$55.00505
2019-06-05$55.40$55.405,750
2019-06-04$55.00$55.006,190
2019-06-03$56.00$56.0020,835
2019-05-31$53.60$53.60745
2019-05-30$56.00$56.002,420
2019-05-29$53.40$53.401,535
2019-05-28$56.00$56.001,835
2019-05-24$55.80$55.80740
2019-05-23$56.00$56.002,095
2019-05-22$55.60$55.605,900
2019-05-21$56.00$56.003,230
2019-05-20$55.80$55.80430
2019-05-17$56.00$56.001,145
2019-05-16$55.00$55.00430
2019-05-15$53.80$53.80735
2019-05-14$54.60$54.60595
2019-05-13$53.00$53.002,945
2019-05-10$55.00$55.00840
2019-05-09$54.60$54.601,940
2019-05-08$55.00$55.001,110
2019-05-07$54.00$54.0012,110
2019-05-06$54.00$54.002,530
2019-05-03$55.00$55.002,705
2019-05-02$56.00$56.001,170
2019-05-01$55.00$55.0012,230
2019-04-30$53.40$53.403,215
2019-04-29$50.40$50.40670
2019-04-26$50.40$50.401,975
2019-04-25$50.20$50.20710
2019-04-24$50.00$50.00765
2019-04-23$50.20$50.207,830
2019-04-22$49.40$49.40650
2019-04-18$49.20$49.20780
2019-04-17$49.00$49.001,105
2019-04-16$48.40$48.402,755
2019-04-15$48.60$48.601,745
2019-04-12$50.20$50.201,090
2019-04-11$50.60$50.60960
2019-04-10$50.80$50.801,275
2019-04-09$50.20$50.20710
2019-04-08$50.00$50.003,265
2019-04-05$50.00$50.00465
2019-04-04$47.00$47.005,010
2019-04-03$47.20$47.20800
2019-04-02$46.20$46.206,320
2019-04-01$47.00$47.00820
2019-03-29$47.60$47.60770
2019-03-28$47.80$47.80380
2019-03-27$48.80$48.80730
2019-03-26$48.60$48.601,075
2019-03-25$49.00$49.001,870
2019-03-22$48.00$48.00935
2019-03-21$48.20$48.202,115
2019-03-20$48.80$48.80485
2019-03-19$49.00$49.001,725
2019-03-18$49.00$49.002,420
2019-03-15$50.00$50.003,895
2019-03-14$49.00$49.001,335
2019-03-13$47.60$47.601,570
2019-03-12$48.20$48.201,090
2019-03-11$49.40$49.401,290
2019-03-08$48.80$48.801,030
2019-03-07$49.80$49.805,610
2019-03-06$49.60$49.60580
2019-03-05$49.80$49.801,260
2019-03-04$49.00$49.00710
2019-03-01$49.00$49.00905
2019-02-28$47.80$47.804,080
2019-02-27$49.00$49.003,980
2019-02-26$49.60$49.601,555
2019-02-25$49.80$49.802,435
2019-02-22$50.40$50.403,820
2019-02-21$51.00$51.002,050
2019-02-20$50.40$50.406,755
2019-02-19$52.00$52.003,675
2019-02-15$53.00$53.002,460
2019-02-14$53.00$53.0011,305
2019-02-13$51.60$51.6098,075
2019-02-12$50.20$50.206,220
2019-02-11$50.00$50.005,920
2019-02-08$50.40$50.406,295
2019-02-07$47.80$47.803,120
2019-02-06$47.00$47.004,665
2019-02-05$45.60$45.602,150
2019-02-04$45.00$45.002,330
2019-02-01$45.00$45.0015,290
2019-01-31$45.20$45.20310
2019-01-30$45.20$45.202,010
2019-01-29$44.60$44.602,135
2019-01-28$46.00$46.0022,750
2019-01-25$43.00$43.0013,350
2019-01-24$42.60$42.609,140
2019-01-23$42.00$42.0021,435
2019-01-22$39.40$39.4027,985
2019-01-18$36.20$36.2038,980
2019-01-17$28.00$28.00158,430
2019-01-16$32.00$32.0072,420
2019-01-15$30.20$30.2065,490
2019-01-14$32.40$32.4016,835
2019-01-11$32.00$32.0010,585
2019-01-10$32.20$32.2013,345
2019-01-09$33.60$33.6038,695
2019-01-08$31.40$31.4013,870
2019-01-07$32.00$32.0013,955
2019-01-04$34.40$34.4011,785
2019-01-03$36.20$36.208,130
2019-01-02$39.20$39.2023,810