OTC:IOBTQ | Historical Stock Price | IO Biotech, Inc.

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
2021-11-05 to 2026-08-28
Data captured

Stock Price Chart

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

$0.00$0.00$0.01$0.13$1.47$16.432021-11-052026-08-28

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

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Historical Stock Price — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2023-12-29$1.88$1.88144,073
2023-12-28$1.95$1.95261,104
2023-12-27$1.82$1.82161,110
2023-12-26$1.74$1.74252,574
2023-12-22$1.50$1.5081,128
2023-12-21$1.46$1.4629,821
2023-12-20$1.48$1.4880,184
2023-12-19$1.52$1.52100,030
2023-12-18$1.51$1.5192,547
2023-12-15$1.42$1.42381,269
2023-12-14$1.31$1.3158,237
2023-12-13$1.23$1.2333,674
2023-12-12$1.18$1.1833,717
2023-12-11$1.21$1.2143,180
2023-12-08$1.27$1.27121,455
2023-12-07$1.31$1.3135,611
2023-12-06$1.28$1.2868,596
2023-12-05$1.23$1.2353,436
2023-12-04$1.22$1.22108,563
2023-12-01$1.21$1.2132,822
2023-11-30$1.17$1.1782,423
2023-11-29$1.22$1.22146,660
2023-11-28$1.32$1.3266,110
2023-11-27$1.36$1.36491,878
2023-11-24$1.17$1.1759,303
2023-11-22$1.05$1.0524,548
2023-11-21$1.01$1.0148,204
2023-11-20$0.98$0.9849,575
2023-11-17$0.99$0.9966,700
2023-11-16$0.96$0.96122,430
2023-11-15$0.98$0.9864,988
2023-11-14$0.95$0.9535,647
2023-11-13$0.95$0.9548,589
2023-11-10$0.93$0.9339,698
2023-11-09$0.94$0.9423,768
2023-11-08$0.95$0.9536,633
2023-11-07$0.98$0.9851,060
2023-11-06$0.93$0.9331,359
2023-11-03$0.89$0.89129,609
2023-11-02$0.89$0.8991,204
2023-11-01$0.87$0.87110,491
2023-10-31$0.86$0.8678,637
2023-10-30$0.86$0.8681,892
2023-10-27$0.85$0.85108,708
2023-10-26$0.90$0.90144,429
2023-10-25$0.96$0.9634,274
2023-10-24$1.06$1.06136,436
2023-10-23$0.98$0.9859,139
2023-10-20$1.03$1.0380,743
2023-10-19$1.05$1.0566,734
2023-10-18$1.06$1.06768,475
2023-10-17$1.10$1.101,223,381
2023-10-16$1.10$1.10722,950
2023-10-13$1.15$1.1540,071
2023-10-12$1.16$1.1682,423
2023-10-11$1.17$1.1768,978
2023-10-10$1.17$1.17158,991
2023-10-09$1.28$1.28113,661
2023-10-06$1.32$1.32133,723
2023-10-05$1.44$1.4431,456
2023-10-04$1.48$1.4843,913
2023-10-03$1.51$1.51140,775
2023-10-02$1.37$1.3720,707
2023-09-29$1.41$1.4145,422
2023-09-28$1.33$1.3348,854
2023-09-27$1.28$1.2889,562
2023-09-26$1.29$1.2978,592
2023-09-25$1.42$1.4222,941
2023-09-22$1.47$1.4734,766
2023-09-21$1.41$1.4131,107
2023-09-20$1.40$1.4057,273
2023-09-19$1.39$1.3942,511
2023-09-18$1.39$1.3931,821
2023-09-15$1.42$1.4273,655
2023-09-14$1.47$1.47846,300
2023-09-13$1.41$1.41858,117
2023-09-12$1.45$1.45764,650
2023-09-11$1.67$1.67625,360
2023-09-08$1.70$1.7013,100
2023-09-07$1.72$1.7228,397
2023-09-06$1.75$1.7548,185
2023-09-05$1.83$1.8344,678
2023-09-01$1.81$1.8146,419
2023-08-31$1.84$1.8441,774
2023-08-30$1.89$1.896,853
2023-08-29$1.88$1.8868,322
2023-08-28$1.88$1.8850,543
2023-08-25$1.98$1.9869,744
2023-08-24$1.93$1.9387,365
2023-08-23$2.02$2.0259,732
2023-08-22$1.92$1.9229,876
2023-08-21$1.90$1.9047,182
2023-08-18$1.91$1.9139,275
2023-08-17$1.94$1.9461,521
2023-08-16$2.03$2.03297,344
2023-08-15$2.01$2.01294,573
2023-08-14$1.92$1.92198,280
2023-08-11$1.83$1.83160,008
2023-08-10$1.83$1.83675,697
2023-08-09$1.80$1.8066,680
2023-08-08$1.85$1.85254,645
2023-08-07$1.85$1.85592,366
2023-08-04$1.88$1.8815,736
2023-08-03$1.87$1.8783,227
2023-08-02$1.90$1.9033,645
2023-08-01$1.86$1.8632,418
2023-07-31$1.84$1.8454,595
2023-07-28$1.86$1.86102,409
2023-07-27$1.92$1.9231,504
2023-07-26$1.87$1.8788,147
2023-07-25$1.87$1.8746,529
2023-07-24$1.81$1.8160,992
2023-07-21$1.85$1.8526,040
2023-07-20$1.88$1.8824,195
2023-07-19$1.82$1.8239,711
2023-07-18$1.86$1.8622,738
2023-07-17$1.86$1.8626,745
2023-07-14$1.78$1.7851,007
2023-07-13$1.80$1.8024,810
2023-07-12$1.87$1.8721,592
2023-07-11$1.86$1.8691,126
2023-07-10$1.82$1.8216,025
2023-07-07$1.80$1.8032,664
2023-07-06$1.83$1.8339,906
2023-07-05$1.89$1.8937,519
2023-07-03$1.92$1.9234,721
2023-06-30$1.96$1.96116,828
2023-06-29$1.92$1.92166,441
2023-06-28$1.73$1.7356,785
2023-06-27$1.75$1.7570,804
2023-06-26$1.83$1.8368,445
2023-06-23$1.86$1.8654,852
2023-06-22$1.89$1.89116,653
2023-06-21$1.96$1.96138,402
2023-06-20$2.01$2.01215,177
2023-06-16$2.00$2.00947,763
2023-06-15$2.05$2.052,452,312
2023-06-14$1.61$1.614,147,099
2023-06-13$2.19$2.1925,261
2023-06-12$2.05$2.059,989
2023-06-09$2.06$2.0630,602
2023-06-08$2.08$2.08233,492
2023-06-07$2.05$2.0513,527
2023-06-06$2.00$2.0024,292
2023-06-05$2.00$2.007,374
2023-06-02$2.02$2.0262,070
2023-06-01$2.00$2.0020,176
2023-05-31$2.08$2.0813,527
2023-05-30$2.07$2.0713,186
2023-05-26$2.03$2.0369,739
2023-05-25$2.01$2.0122,448
2023-05-24$2.15$2.1528,883
2023-05-23$2.08$2.0837,222
2023-05-22$2.05$2.0526,211
2023-05-19$2.00$2.009,487
2023-05-18$1.96$1.9633,029
2023-05-17$2.03$2.0352,365
2023-05-16$2.01$2.0110,007
2023-05-15$2.00$2.009,635
2023-05-12$1.98$1.9866,443
2023-05-11$2.15$2.1510,281
2023-05-10$1.96$1.9637,678
2023-05-09$2.05$2.0543,303
2023-05-08$2.05$2.0530,691
2023-05-05$2.15$2.1532,769
2023-05-04$2.08$2.0821,706
2023-05-03$1.97$1.9717,780
2023-05-02$1.88$1.8813,758
2023-05-01$1.88$1.8824,574
2023-04-28$1.91$1.9110,441
2023-04-27$1.89$1.893,935
2023-04-26$1.87$1.875,206
2023-04-25$1.86$1.868,946
2023-04-24$1.89$1.892,893
2023-04-21$1.87$1.8740,675
2023-04-20$1.92$1.927,169
2023-04-19$1.92$1.926,918
2023-04-18$1.88$1.8842,329
2023-04-17$1.88$1.885,905
2023-04-14$1.85$1.8512,950
2023-04-13$1.85$1.8523,972
2023-04-12$1.80$1.8015,165
2023-04-11$1.84$1.8418,023
2023-04-10$1.87$1.8712,380
2023-04-06$1.93$1.9319,180
2023-04-05$1.86$1.8626,939
2023-04-04$1.81$1.8136,013
2023-04-03$1.86$1.8636,024
2023-03-31$1.88$1.8810,572
2023-03-30$1.88$1.8835,279
2023-03-29$1.90$1.9037,730
2023-03-28$1.90$1.9023,860
2023-03-27$1.94$1.9453,619
2023-03-24$2.00$2.0015,243
2023-03-23$1.98$1.9813,368
2023-03-22$2.05$2.0536,374
2023-03-21$2.10$2.1044,258
2023-03-20$1.98$1.9826,092
2023-03-17$1.98$1.98105,297
2023-03-16$2.20$2.2037,752
2023-03-15$2.25$2.25126,418
2023-03-14$2.44$2.4424,489
2023-03-13$2.41$2.4169,563
2023-03-10$2.49$2.4975,390
2023-03-09$2.60$2.6010,627
2023-03-08$2.52$2.5211,169
2023-03-07$2.55$2.5545,210
2023-03-06$2.59$2.595,801
2023-03-03$2.62$2.6211,186
2023-03-02$2.53$2.5321,768
2023-03-01$2.59$2.5952,714
2023-02-28$2.54$2.5416,550
2023-02-27$2.66$2.6642,137
2023-02-24$2.52$2.5211,143
2023-02-23$2.56$2.568,694
2023-02-22$2.61$2.618,623
2023-02-21$2.68$2.6810,090
2023-02-17$2.62$2.6232,593
2023-02-16$2.58$2.5833,874
2023-02-15$2.65$2.6529,334
2023-02-14$2.70$2.705,124
2023-02-13$2.77$2.7723,374
2023-02-10$2.66$2.6618,653
2023-02-09$2.69$2.69451,385
2023-02-08$2.62$2.6212,063
2023-02-07$2.74$2.7413,806
2023-02-06$2.65$2.6570,130
2023-02-03$2.70$2.7026,894
2023-02-02$2.72$2.7238,961
2023-02-01$2.87$2.87119,877
2023-01-31$2.77$2.7766,709
2023-01-30$2.55$2.5536,105
2023-01-27$2.82$2.8221,892
2023-01-26$2.79$2.7916,572
2023-01-25$2.78$2.7821,793
2023-01-24$2.87$2.8751,133
2023-01-23$2.98$2.98100,378
2023-01-20$2.95$2.95210,013
2023-01-19$2.62$2.621,075,008
2023-01-18$2.54$2.5453,789
2023-01-17$2.48$2.4868,421
2023-01-13$2.34$2.34148,437
2023-01-12$2.60$2.6029,195
2023-01-11$2.49$2.4958,281
2023-01-10$2.53$2.5321,240
2023-01-09$2.45$2.45360,284
2023-01-06$2.50$2.50122,774
2023-01-05$2.59$2.5910,158
2023-01-04$2.56$2.5642,375
2023-01-03$2.41$2.41134,092