NASDAQ:COLB | Historical Stock Price | COLUMBIA BANKING SYSTEM, 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
1992-06-16 to 2026-09-04
Data captured

Stock Price Chart

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

$3.43$6.37$11.80$21.86$40.52$75.091992-06-162026-08-27

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

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Historical Stock Price — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1997-12-31$12.85$12.8510,505
1997-12-30$12.85$12.8510,926
1997-12-29$13.09$13.093,362
1997-12-26$12.97$12.9719,540
1997-12-24$12.97$12.9717,439
1997-12-23$12.97$12.9713,027
1997-12-22$12.97$12.972,521
1997-12-19$13.33$13.3310,295
1997-12-18$13.27$13.2731,726
1997-12-17$13.21$13.2114,287
1997-12-16$13.33$13.3388,666
1997-12-15$13.21$13.2117,439
1997-12-12$13.21$13.2115,548
1997-12-11$13.21$13.2113,237
1997-12-10$13.21$13.215,673
1997-12-09$13.21$13.217,564
1997-12-08$12.97$12.9726,474
1997-12-05$13.27$13.278,825
1997-12-04$13.21$13.216,513
1997-12-03$13.21$13.2130,256
1997-12-02$12.85$12.8511,556
1997-12-01$12.85$12.855,043
1997-11-28$12.85$12.853,152
1997-11-26$12.85$12.8511,136
1997-11-25$12.73$12.7326,684
1997-11-24$13.09$13.0910,505
1997-11-21$13.21$13.2111,556
1997-11-20$12.85$12.8510,716
1997-11-19$12.85$12.8520,170
1997-11-18$12.85$12.8515,548
1997-11-17$12.97$12.9764,503
1997-11-14$12.67$12.678,194
1997-11-13$12.91$12.918,404
1997-11-12$12.73$12.7340,341
1997-11-11$13.09$13.0931,096
1997-11-10$12.85$12.8556,309
1997-11-07$12.14$12.1418,069
1997-11-06$12.14$12.1435,298
1997-11-05$12.37$12.375,043
1997-11-04$12.14$12.146,513
1997-11-03$12.32$12.3227,524
1997-10-31$12.32$12.32277,344
1997-10-30$11.54$11.547,144
1997-10-29$11.84$11.8436,349
1997-10-28$11.54$11.5439,921
1997-10-27$11.42$11.42109,047
1997-10-24$11.84$11.846,513
1997-10-23$11.66$11.665,043
1997-10-22$11.90$11.908,825
1997-10-21$11.78$11.7811,556
1997-10-20$11.66$11.667,564
1997-10-17$11.90$11.908,194
1997-10-16$11.90$11.9010,085
1997-10-15$11.60$11.603,782
1997-10-14$11.78$11.7828,995
1997-10-13$11.90$11.9017,439
1997-10-10$11.78$11.7810,085
1997-10-09$11.66$11.662,942
1997-10-08$11.96$11.9619,540
1997-10-07$11.60$11.6081,102
1997-10-06$11.69$11.6986,985
1997-10-03$11.36$11.36216,412
1997-10-02$11.24$11.2457,990
1997-10-01$10.95$10.954,833
1997-09-30$10.95$10.9511,136
1997-09-29$10.95$10.957,984
1997-09-26$10.71$10.7127,524
1997-09-25$10.71$10.71182,375
1997-09-24$10.71$10.711,261
1997-09-23$10.47$10.4717,859
1997-09-22$10.83$10.8331,306
1997-09-19$11.13$11.1315,758
1997-09-18$11.01$11.0146,854
1997-09-17$11.18$11.183,572
1997-09-16$11.18$11.181,261
1997-09-15$11.18$11.182,311
1997-09-12$11.01$11.0134,668
1997-09-11$11.18$11.184,833
1997-09-10$11.18$11.1857,150
1997-09-09$11.18$11.182,521
1997-09-08$11.07$11.078,194
1997-09-05$11.18$11.1828,575
1997-09-04$10.71$10.7118,910
1997-09-03$11.24$11.2417,229
1997-09-02$11.30$11.3024,163
1997-08-29$11.36$11.3621,431
1997-08-28$11.42$11.4217,649
1997-08-27$11.42$11.4250,006
1997-08-26$11.18$11.1861,352
1997-08-25$11.42$11.4253,998
1997-08-22$11.48$11.4871,647
1997-08-21$11.54$11.5420,381
1997-08-20$12.14$12.145,883
1997-08-19$12.14$12.1414,918
1997-08-18$11.54$11.5420,381
1997-08-15$11.87$11.8720,381
1997-08-14$11.60$11.6034,038
1997-08-13$11.72$11.7236,769
1997-08-12$12.14$12.1424,793
1997-08-11$11.42$11.427,564
1997-08-08$11.90$11.9015,338
1997-08-07$11.30$11.308,404
1997-08-06$11.78$11.7891,397
1997-08-05$11.78$11.7810,505
1997-08-04$11.54$11.547,354
1997-08-01$11.60$11.6031,096
1997-07-31$11.66$11.6613,867
1997-07-30$11.30$11.308,825
1997-07-29$11.13$11.1310,505
1997-07-28$11.66$11.665,253
1997-07-25$11.30$11.309,035
1997-07-24$11.30$11.308,404
1997-07-23$11.66$11.6617,649
1997-07-22$11.78$11.7847,275
1997-07-21$11.60$11.6027,524
1997-07-18$11.30$11.309,455
1997-07-17$11.07$11.0728,995
1997-07-16$11.30$11.3051,477
1997-07-15$11.48$11.4860,091
1997-07-14$10.95$10.9540,341
1997-07-11$10.59$10.5941,181
1997-07-10$10.05$10.0527,524
1997-07-09$9.99$9.9929,415
1997-07-08$9.76$9.7627,314
1997-07-07$9.76$9.767,354
1997-07-03$9.76$9.767,144
1997-07-02$9.76$9.7651,267
1997-07-01$9.88$9.8843,072
1997-06-30$9.58$9.5819,120
1997-06-27$9.82$9.8217,859
1997-06-26$9.70$9.7077,320
1997-06-25$9.58$9.585,883
1997-06-24$9.52$9.5210,295
1997-06-23$9.58$9.585,463
1997-06-20$9.40$9.4014,287
1997-06-19$9.22$9.229,665
1997-06-18$9.10$9.107,144
1997-06-17$9.28$9.2813,237
1997-06-16$9.46$9.462,521
1997-06-13$9.22$9.2284,254
1997-06-12$9.40$9.40283,017
1997-06-11$9.40$9.4022,061
1997-06-10$9.34$9.3421,641
1997-06-09$9.34$9.342,731
1997-06-06$9.16$9.1643,072
1997-06-05$9.16$9.1626,054
1997-06-04$8.92$8.9211,136
1997-06-03$8.80$8.8089,927
1997-06-02$9.04$9.048,404
1997-05-30$8.57$8.574,412
1997-05-29$8.92$8.9216,809
1997-05-28$8.63$8.6310,926
1997-05-27$8.63$8.6371,437
1997-05-23$8.80$8.8027,734
1997-05-22$8.63$8.6312,607
1997-05-21$8.69$8.6932,777
1997-05-20$8.51$8.5129,205
1997-05-19$8.33$8.3317,859
1997-05-16$8.57$8.578,614
1997-05-15$8.45$8.45122,914
1997-05-14$8.57$8.5743,913
1997-05-13$8.15$8.1562,612
1997-05-12$8.09$8.0911,766
1997-05-09$8.09$8.099,035
1997-05-08$7.62$7.627,984
1997-05-07$7.97$7.973,362
1997-05-06$7.97$7.973,572
1997-05-05$7.71$7.7136,843
1997-05-02$7.71$7.7149,859
1997-05-01$7.90$7.9070,817
1997-04-30$8.16$8.1697,070
1997-04-29$7.42$7.4260,890
1997-04-28$7.37$7.3717,649
1997-04-25$7.25$7.2567,729
1997-04-24$7.42$7.4271,920
1997-04-23$7.42$7.42135,016
1997-04-22$7.20$7.203,309
1997-04-21$7.05$7.0540,814
1997-04-18$7.14$7.1420,517
1997-04-17$7.25$7.2535,078
1997-04-16$7.14$7.1438,608
1997-04-15$7.20$7.2035,960
1997-04-14$7.20$7.2016,105
1997-04-11$7.14$7.1456,477
1997-04-10$7.42$7.427,722
1997-04-09$7.48$7.4821,179
1997-04-08$7.54$7.5441,917
1997-04-07$7.37$7.3721,841
1997-04-04$7.31$7.3144,343
1997-04-03$7.14$7.1471,258
1997-04-02$6.80$6.8076,553
1997-04-01$7.31$7.3122,944
1997-03-31$7.37$7.3755,595
1997-03-27$7.59$7.5922,723
1997-03-26$7.82$7.829,928
1997-03-25$7.73$7.7378,318
1997-03-24$7.82$7.8217,649
1997-03-21$7.88$7.8813,457
1997-03-20$7.93$7.9321,179
1997-03-19$7.88$7.8814,340
1997-03-18$7.93$7.9345,005
1997-03-17$8.05$8.0513,678
1997-03-14$8.05$8.054,412
1997-03-13$8.05$8.051,765
1997-03-12$7.93$7.9320,076
1997-03-11$8.16$8.1635,960
1997-03-10$8.10$8.1015,664
1997-03-07$7.99$7.9922,944
1997-03-06$7.93$7.9316,325
1997-03-05$7.99$7.9910,369
1997-03-04$7.99$7.996,839
1997-03-03$7.96$7.9619,414
1997-02-28$7.88$7.8824,488
1997-02-27$8.05$8.054,412
1997-02-26$7.88$7.8838,608
1997-02-25$7.88$7.887,942
1997-02-24$8.05$8.0553,609
1997-02-21$8.10$8.1018,973
1997-02-20$7.99$7.9941,696
1997-02-19$8.02$8.0215,664
1997-02-18$8.10$8.104,192
1997-02-14$8.10$8.1064,861
1997-02-13$7.99$7.99195,244
1997-02-12$7.99$7.9941,917
1997-02-11$7.88$7.8830,886
1997-02-10$7.88$7.8859,786
1997-02-07$7.79$7.7973,465
1997-02-06$7.88$7.8815,664
1997-02-05$7.76$7.7682,289
1997-02-04$7.71$7.7143,902
1997-02-03$7.76$7.7653,168
1997-01-31$7.76$7.7635,960
1997-01-30$7.88$7.8817,208
1997-01-29$7.76$7.7629,562
1997-01-28$7.99$7.9937,504
1997-01-27$7.93$7.9322,944
1997-01-24$7.99$7.99124,427
1997-01-23$8.02$8.0283,172
1997-01-22$8.16$8.1691,114
1997-01-21$8.16$8.16110,087
1997-01-20$8.05$8.05139,649
1997-01-17$7.48$7.4818,090
1997-01-16$7.42$7.4210,369
1997-01-15$7.48$7.4854,271
1997-01-14$7.71$7.7110,589
1997-01-13$7.59$7.5938,166
1997-01-10$7.42$7.428,604
1997-01-09$7.42$7.4235,078
1997-01-08$7.50$7.5073,465
1997-01-07$7.71$7.71151,562
1997-01-06$7.37$7.3732,872
1997-01-03$7.03$7.0310,589
1997-01-02$7.25$7.2516,325