NASDAQ:QNTM | Historical Stock Price | Quantum Biopharma Ltd.

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
2018-06-08 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.99$10.84$58.94$320.38$1,741.43$9,465.592018-06-082026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$66.30$66.302,938
2021-12-30$67.60$67.607,651
2021-12-29$63.90$63.903,385
2021-12-28$63.83$63.836,843
2021-12-27$62.47$62.466,002
2021-12-23$66.95$66.954,552
2021-12-22$68.90$68.901,880
2021-12-21$68.90$68.903,314
2021-12-20$66.30$66.302,209
2021-12-17$68.90$68.902,571
2021-12-16$72.15$72.151,866
2021-12-15$73.45$73.453,560
2021-12-14$74.10$74.102,692
2021-12-13$76.70$76.704,563
2021-12-10$78.65$78.651,948
2021-12-09$80.60$80.603,500
2021-12-08$81.25$81.253,969
2021-12-07$74.75$74.753,954
2021-12-06$74.75$74.753,372
2021-12-03$74.75$74.754,898
2021-12-02$82.55$82.555,642
2021-12-01$76.05$76.053,957
2021-11-30$78.00$78.0013,423
2021-11-29$83.85$83.852,566
2021-11-26$86.45$86.453,452
2021-11-24$88.40$88.401,786
2021-11-23$89.70$89.702,522
2021-11-22$88.40$88.406,012
2021-11-19$96.20$96.202,329
2021-11-18$96.20$96.203,626
2021-11-17$105.95$105.9510,855
2021-11-16$102.70$102.705,658
2021-11-15$102.70$102.709,758
2021-11-12$100.75$100.7510,598
2021-11-11$96.85$96.852,546
2021-11-10$95.55$95.553,385
2021-11-09$100.75$100.755,588
2021-11-08$100.10$100.106,711
2021-11-05$99.45$99.4511,814
2021-11-04$96.20$96.205,332
2021-11-03$92.30$92.303,782
2021-11-02$91.65$91.653,098
2021-11-01$90.35$90.354,029
2021-10-29$90.35$90.354,375
2021-10-28$90.35$90.352,295
2021-10-27$89.70$89.703,758
2021-10-26$92.30$92.302,782
2021-10-25$91.00$91.004,182
2021-10-22$92.95$92.958,492
2021-10-21$96.85$96.854,126
2021-10-20$99.45$99.458,920
2021-10-19$100.10$100.1017,685
2021-10-18$92.30$92.302,749
2021-10-15$92.95$92.953,031
2021-10-14$93.60$93.602,680
2021-10-13$96.20$96.201,425
2021-10-12$96.85$96.851,922
2021-10-11$94.90$94.901,675
2021-10-08$94.90$94.902,045
2021-10-07$96.85$96.856,178
2021-10-06$94.90$94.903,748
2021-10-05$96.20$96.2010,434
2021-10-04$95.55$95.554,534
2021-10-01$100.75$100.752,934
2021-09-30$102.70$102.702,223
2021-09-29$100.10$100.105,054
2021-09-28$102.70$102.705,058
2021-09-27$103.35$103.3511,202
2021-09-24$100.10$100.109,463
2021-09-23$98.80$98.804,709
2021-09-22$100.10$100.103,177
2021-09-21$101.40$101.408,458
2021-09-20$94.25$94.2512,025
2021-09-17$100.75$100.757,326
2021-09-16$105.30$105.305,482
2021-09-15$109.20$109.2014,849
2021-09-14$103.35$103.353,517
2021-09-13$107.25$107.252,731
2021-09-10$110.50$110.502,205
2021-09-09$110.50$110.501,363
2021-09-08$107.90$107.903,306
2021-09-07$113.75$113.752,198
2021-09-03$117.65$117.652,406
2021-09-02$117.00$117.003,597
2021-09-01$116.35$116.352,263
2021-08-31$118.95$118.953,780
2021-08-30$118.95$118.954,975
2021-08-27$119.60$119.604,229
2021-08-26$117.00$117.006,902
2021-08-25$119.60$119.6029,706
2021-08-24$111.80$111.8011,862
2021-08-23$107.90$107.902,446
2021-08-20$100.75$100.753,148
2021-08-19$96.85$96.852,272
2021-08-18$99.45$99.451,878
2021-08-17$99.45$99.452,289
2021-08-16$99.45$99.454,622
2021-08-13$102.70$102.702,460
2021-08-12$105.95$105.952,526
2021-08-11$105.95$105.951,492
2021-08-10$107.25$107.252,503
2021-08-09$109.20$109.202,018
2021-08-06$110.50$110.504,189
2021-08-05$109.85$109.851,269
2021-08-04$107.25$107.252,512
2021-08-03$110.50$110.501,755
2021-08-02$109.20$109.202,585
2021-07-30$113.75$113.752,600
2021-07-29$111.15$111.151,898
2021-07-28$111.15$111.155,668
2021-07-27$105.95$105.954,955
2021-07-26$105.95$105.954,331
2021-07-23$104.65$104.656,468
2021-07-22$104.00$104.004,348
2021-07-21$103.35$103.352,415
2021-07-20$101.40$101.402,594
2021-07-19$98.15$98.153,655
2021-07-16$100.75$100.754,505
2021-07-15$99.45$99.455,398
2021-07-14$99.45$99.456,520
2021-07-13$104.65$104.652,805
2021-07-12$107.25$107.252,114
2021-07-09$109.20$109.202,326
2021-07-08$106.60$106.603,098
2021-07-07$106.60$106.604,828
2021-07-06$106.60$106.607,498
2021-07-02$111.80$111.802,054
2021-07-01$111.15$111.152,829
2021-06-30$113.10$113.104,177
2021-06-29$114.40$114.404,391
2021-06-28$117.00$117.003,328
2021-06-25$118.95$118.952,802
2021-06-24$117.00$117.003,434
2021-06-23$120.25$120.253,349
2021-06-22$118.95$118.953,091
2021-06-21$116.35$116.354,425
2021-06-18$118.95$118.953,605
2021-06-17$122.20$122.202,994
2021-06-16$119.60$119.602,732
2021-06-15$120.25$120.255,154
2021-06-14$126.10$126.107,025
2021-06-11$126.10$126.103,082
2021-06-10$126.75$126.756,891
2021-06-09$129.35$129.358,838
2021-06-08$126.10$126.107,294
2021-06-07$130.00$130.0011,935
2021-06-04$123.50$123.5012,420
2021-06-03$138.45$138.4547,777
2021-06-02$119.60$119.608,265
2021-06-01$115.70$115.705,860
2021-05-28$115.05$115.057,625
2021-05-27$113.10$113.105,786
2021-05-26$112.45$112.455,174
2021-05-25$109.85$109.855,997
2021-05-24$109.20$109.203,406
2021-05-21$110.50$110.506,723
2021-05-20$111.80$111.803,454
2021-05-19$109.20$109.206,005
2021-05-18$113.75$113.754,308
2021-05-17$112.45$112.458,297
2021-05-14$109.20$109.205,406
2021-05-13$105.30$105.309,751
2021-05-12$107.25$107.259,366
2021-05-11$111.15$111.1511,000
2021-05-10$102.70$102.7011,749
2021-05-07$110.50$110.505,420
2021-05-06$103.35$103.3513,263
2021-05-05$113.10$113.1010,826
2021-05-04$115.05$115.0512,062
2021-05-03$117.00$117.009,742
2021-04-30$117.00$117.0017,186
2021-04-29$115.05$115.059,535
2021-04-28$118.30$118.307,506
2021-04-27$115.05$115.057,103
2021-04-26$113.75$113.7511,131
2021-04-23$107.25$107.257,894
2021-04-22$104.65$104.658,509
2021-04-21$106.60$106.6010,615
2021-04-20$101.40$101.4011,008
2021-04-19$104.65$104.6519,302
2021-04-16$101.40$101.4010,903
2021-04-15$103.35$103.3523,408
2021-04-14$115.05$115.0511,014
2021-04-13$118.30$118.309,488
2021-04-12$117.65$117.6510,918
2021-04-09$126.10$126.108,452
2021-04-08$126.10$126.109,125
2021-04-07$128.05$128.0517,520
2021-04-06$128.05$128.0542,057
2021-04-05$124.15$124.1514,191
2021-04-01$125.45$125.4521,728
2021-03-31$124.15$124.1523,628
2021-03-30$122.20$122.2012,789
2021-03-29$118.95$118.9512,722
2021-03-26$123.50$123.5012,458
2021-03-25$124.15$124.1519,340
2021-03-24$117.65$117.6532,731
2021-03-23$128.70$128.7034,382
2021-03-22$139.10$139.1038,052
2021-03-19$146.90$146.9052,102
2021-03-18$144.30$144.3070,369
2021-03-17$155.35$155.35955,692
2021-03-16$134.55$134.5522,189
2021-03-15$139.75$139.7529,866
2021-03-12$133.25$133.2530,408
2021-03-11$132.60$132.6056,160
2021-03-10$124.80$124.8065,074
2021-03-09$125.45$125.4541,302
2021-03-08$113.10$113.1029,597
2021-03-05$109.85$109.8528,751
2021-03-04$115.70$115.7029,189
2021-03-03$126.10$126.1032,248
2021-03-02$134.55$134.55121,168
2021-03-01$134.55$134.5530,268
2021-02-26$133.90$133.9024,614
2021-02-25$138.45$138.4523,786
2021-02-24$143.65$143.6523,502
2021-02-23$131.95$131.9537,934
2021-02-22$146.90$146.9037,985
2021-02-19$161.85$161.8524,111
2021-02-18$156.00$156.0031,449
2021-02-17$172.25$172.2546,622
2021-02-16$183.95$183.9543,143
2021-02-12$183.95$183.9575,702
2021-02-11$199.55$199.55228,172
2021-02-10$251.55$251.55335,874
2021-02-09$189.15$189.15284,183
2021-02-08$150.15$150.1569,602
2021-02-05$142.35$142.3536,326
2021-02-04$141.70$141.7060,374
2021-02-03$144.30$144.30364,048
2021-02-02$134.55$134.5523,638
2021-02-01$128.05$128.0510,052
2021-01-29$130.65$130.6512,811
2021-01-28$135.20$135.2017,729
2021-01-27$126.10$126.1022,277
2021-01-26$143.65$143.658,649
2021-01-25$147.55$147.559,785
2021-01-22$148.20$148.206,638
2021-01-21$146.25$146.259,389
2021-01-20$148.85$148.8525,449
2021-01-19$139.75$139.757,858
2021-01-15$134.55$134.5513,812
2021-01-14$136.50$136.5011,315
2021-01-13$130.65$130.658,906
2021-01-12$130.00$130.0011,383
2021-01-11$139.10$139.1046,035
2021-01-08$124.80$124.8010,809
2021-01-07$126.75$126.7514,378
2021-01-06$115.70$115.7019,615
2021-01-05$113.10$113.108,243
2021-01-04$107.25$107.256,440