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Columbia Banking System, Inc. (COLB) stock

COLBNasdaqState Commercial BanksFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026Score 16/301% above fair value
$30.70−0.31 (-1.00%)

Close on Oct 30, 2026Market cap $8.69BP/E 12.2Yield 4.72%

Price history

Columbia Banking System share prices for every week, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$30.70
-1.00% on the day
52-week range
$25.12 – $33.68
-8.8% from the high
Change over 52 weeks
+18.0%
From $26.02 on Oct 30, 2025
Average volume
2.90M
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$30.85$31.41$30.43$30.70-0.50%13,974,470
Oct 19, 2026$28.36$31.06$28.26$30.86+8.49%15,567,545
Oct 12, 2026$28.39$29.34$27.65$28.44+0.25%13,657,581
Oct 5, 2026$29.00$29.17$27.91$28.37-1.90%13,272,112
Sep 28, 2026$29.60$29.60$27.96$28.92-2.43%13,746,855
Sep 21, 2026$30.06$30.31$28.76$29.64-0.97%12,145,934
Sep 14, 2026$29.99$30.55$29.18$29.93-0.60%16,809,606
Sep 8, 2026$30.81$30.82$29.44$30.11-2.24%12,205,596
Aug 31, 2026$30.13$30.91$29.22$30.80+2.43%15,401,006
Aug 24, 2026$30.81$31.08$30.02$30.07-2.40%12,142,507
Aug 17, 2026$32.69$32.83$30.61$30.81-5.75%15,486,688
Aug 10, 2026$31.19$32.78$30.95$32.69+4.64%14,408,699
Aug 3, 2026$31.43$32.18$30.76$31.24-0.10%11,591,093
Jul 27, 2026$31.37$31.56$30.75$31.27+0.39%15,632,183
Jul 20, 2026$33.33$33.46$30.82$31.15-6.29%18,693,105
Jul 13, 2026$32.11$33.68$31.79$33.24+3.71%14,240,159
Jul 6, 2026$31.73$32.37$30.84$32.05+1.04%11,743,643
Jun 29, 2026$32.08$32.77$31.60$31.72-1.34%11,627,154
Jun 22, 2026$30.56$32.26$30.56$32.15+5.24%15,747,000
Jun 15, 2026$31.75$31.84$29.77$30.55-2.43%15,749,209
Jun 8, 2026$29.74$31.46$29.53$31.31+5.56%15,234,189
Jun 1, 2026$29.28$29.93$28.55$29.66+0.07%13,214,690
May 26, 2026$29.96$30.24$29.05$29.64-0.30%11,604,412
May 18, 2026$28.88$29.82$28.54$29.73+3.34%10,936,923
May 11, 2026$30.11$30.25$28.49$28.77-4.23%18,008,804
May 4, 2026$29.36$30.46$28.94$30.04+1.62%13,377,638
Apr 27, 2026$29.25$30.19$28.91$29.56+1.16%11,035,965
Apr 20, 2026$29.60$29.98$28.78$29.22-1.38%13,583,519
Apr 13, 2026$28.82$30.11$28.59$29.63+2.31%11,164,409
Apr 6, 2026$27.72$29.66$27.50$28.96+4.44%15,999,504
Mar 30, 2026$26.81$28.25$26.57$27.73+3.86%11,860,935
Mar 23, 2026$26.95$27.80$26.61$26.70+2.14%12,643,554
Mar 16, 2026$26.67$26.83$25.68$26.14-0.34%19,353,144
Mar 9, 2026$26.87$27.62$26.08$26.23-3.92%14,479,840
Mar 2, 2026$27.92$29.19$26.42$27.30-4.04%14,144,975
Feb 23, 2026$31.69$31.74$28.15$28.45-10.42%17,208,083
Feb 17, 2026$31.59$32.12$30.80$31.76+0.86%11,800,299
Feb 9, 2026$32.04$32.70$30.75$31.49-1.81%14,280,010
Feb 2, 2026$29.30$32.23$29.03$32.07+8.93%14,824,644
Jan 26, 2026$28.91$29.50$28.37$29.44+1.94%15,415,678
Jan 20, 2026$28.52$31.11$28.21$28.88-0.10%17,684,601
Jan 12, 2026$28.74$29.39$28.04$28.91-0.48%9,653,699
Jan 5, 2026$28.11$29.72$28.06$29.05+3.05%10,625,065
Dec 29, 2025$28.43$28.69$27.54$28.19-1.40%7,319,233
Dec 22, 2025$29.02$29.26$28.47$28.59-0.90%6,223,035
Dec 15, 2025$29.51$29.61$28.64$28.85-1.33%13,941,700
Dec 8, 2025$28.18$29.50$27.99$29.24+3.76%15,042,620
Dec 1, 2025$27.56$28.39$27.51$28.18+1.66%13,763,529
Nov 24, 2025$27.26$28.77$26.96$27.72+2.02%8,682,920
Nov 17, 2025$26.79$27.47$25.51$27.17+0.89%16,762,661
Nov 10, 2025$27.05$27.41$26.47$26.930.00%15,284,081
Nov 3, 2025$26.55$27.14$26.03$26.93+0.49%17,284,874

Seasonality

COLB return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average-1.5%-0.5%-8.1%-0.4%-0.3%2.6%4.3%-0.6%-0.6%5.0%6.5%-0.4%
Months up6 of 104 of 102 of 105 of 105 of 106 of 107 of 104 of 104 of 107 of 108 of 94 of 9
20265.3%-2.2%-3.6%7.9%1.4%8.1%-2.4%-4.1%-3.5%7.3%
20253.3%-2.9%-6.7%-10.1%5.9%0.0%1.8%14.0%-3.8%4.1%4.8%0.8%
2024-24.4%-8.4%6.9%-2.8%4.4%3.2%31.5%-2.3%3.7%9.2%10.0%-12.9%
20232.6%-2.9%-28.0%-0.3%-4.6%1.2%10.2%-6.7%-0.9%-3.1%15.9%18.9%
20226.3%6.3%-11.9%-13.0%8.5%-5.0%5.3%0.3%-3.5%17.0%1.8%-11.5%
20217.3%15.7%-2.7%1.0%-0.2%-10.7%-9.4%4.9%4.5%-9.5%-3.7%-0.4%
2020-4.9%-13.1%-19.3%0.7%-8.5%16.4%2.1%-2.6%-14.5%19.1%12.4%13.6%
20191.3%4.2%-13.7%14.8%-10.2%8.5%4.2%-7.7%6.9%6.5%0.1%4.1%
2018-0.8%-2.5%0.4%-4.1%6.4%-3.8%0.1%3.9%-8.2%-4.3%10.9%-10.8%
2017-11.0%0.9%-2.3%1.3%-6.6%8.6%-0.0%-6.2%13.3%3.8%6.0%-5.8%