StockData
Columbia Banking System, Inc. logo

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 month, newest first. Adjusted for stock splits, not for dividends.

Download all as CSV
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
MonthOpenHighLowCloseChangeVolume
Oct 2026$28.42$31.41$27.65$30.70+7.34%62,150,334
Sep 2026$29.76$30.91$28.49$28.60-3.51%62,255,500
Aug 2026$31.43$32.83$29.60$29.64-5.21%56,003,858
Jul 2026$32.20$33.68$30.75$31.27-2.43%66,826,160
Jun 2026$29.28$32.26$28.55$32.05+8.13%65,055,172
May 2026$29.44$30.46$28.49$29.64+0.14%55,763,186
Apr 2026$27.65$30.19$27.23$29.60+7.91%54,721,133
Mar 2026$27.92$29.19$25.68$27.43-3.59%67,709,303
Feb 2026$29.30$32.70$28.15$28.45-3.36%58,113,036
Jan 2026$28.05$31.11$27.54$29.44+5.33%55,668,675
Dec 2025$27.56$29.61$27.51$27.95+0.83%54,000,485
Nov 2025$26.55$28.77$25.51$27.72+3.43%58,014,536
Oct 2025$25.61$27.32$23.83$26.80+4.12%127,675,103
Sep 2025$26.51$27.48$25.10$25.74-3.85%124,735,946
Aug 2025$23.40$27.52$22.77$26.77+12.48%73,999,491
Jul 2025$23.24$25.71$23.14$23.80+1.80%61,411,872
Jun 2025$23.29$24.35$21.91$23.380.00%42,443,878
May 2025$22.38$25.84$22.20$23.38+4.28%40,604,845
Apr 2025$24.77$25.14$19.61$22.42-10.10%48,085,442
Mar 2025$26.87$27.02$23.61$24.94-6.70%34,890,118
Feb 2025$26.96$28.72$26.15$26.73-4.19%25,145,689
Jan 2025$27.29$29.18$25.89$27.90+3.30%28,776,469
Dec 2024$30.98$31.35$26.26$27.01-12.90%32,636,268
Nov 2024$28.77$32.85$27.55$31.01+8.77%30,640,818
Oct 2024$26.02$29.41$25.05$28.51+9.19%35,627,388
Sep 2024$24.97$26.54$22.95$26.11+3.69%39,859,177
Aug 2024$26.18$26.24$22.16$25.18-3.75%35,754,290
Jul 2024$19.87$27.08$19.08$26.16+31.52%55,745,196
Jun 2024$19.42$19.96$18.20$19.89+3.16%37,465,355
May 2024$18.97$20.88$18.11$19.28+2.50%38,809,360
Apr 2024$19.35$20.31$17.08$18.81-2.79%51,353,032
Mar 2024$17.90$19.91$17.18$19.35+6.91%76,494,063
Feb 2024$20.25$20.34$17.57$18.10-10.22%58,698,209
Jan 2024$26.46$27.20$19.47$20.16-24.44%53,182,281
Dec 2023$22.36$28.12$22.23$26.68+18.95%35,453,866
Nov 2023$19.62$23.14$19.29$22.43+14.03%26,708,515
Oct 2023$20.27$21.21$17.97$19.67-3.10%37,615,296
Sep 2023$20.77$21.32$19.33$20.30-0.88%31,432,370
Aug 2023$22.14$22.50$18.68$20.48-8.37%30,809,917
Jul 2023$20.29$23.75$19.65$22.35+10.21%44,589,604
Jun 2023$20.26$24.03$19.92$20.28+1.25%36,066,183
May 2023$21.52$22.31$17.54$20.03-6.23%53,615,374
Apr 2023$21.54$22.70$19.75$21.36-0.28%39,727,961
Mar 2023$30.11$30.11$19.59$21.42-27.95%85,998,803
Feb 2023$30.64$33.24$29.51$29.73-3.82%58,210,698
Jan 2023$30.24$30.92$27.37$30.91+2.59%26,307,843
Dec 2022$34.14$34.34$29.17$30.13-11.54%23,902,930
Nov 2022$33.50$35.53$32.58$34.06+1.76%15,917,807
Oct 2022$29.36$33.83$28.68$33.47+15.85%24,320,041
Sep 2022$29.98$31.63$28.36$28.89-3.54%17,996,550
Aug 2022$30.03$32.83$29.41$29.95-0.73%13,646,153
Jul 2022$28.63$30.48$27.78$30.17+5.31%18,053,349
Jun 2022$30.15$31.33$26.97$28.65-4.98%19,866,520
May 2022$28.29$30.46$27.61$30.15+7.37%16,755,765
Apr 2022$32.77$32.86$27.95$28.08-12.98%18,826,066
Mar 2022$35.84$36.68$32.06$32.27-11.90%19,881,136
Feb 2022$34.24$37.59$33.05$36.63+5.35%15,643,966
Jan 2022$33.29$37.66$33.08$34.77+6.27%17,484,761
Dec 2021$33.47$34.16$30.09$32.72-0.43%17,734,880
Nov 2021$34.38$36.93$31.95$32.86-3.72%12,803,309

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%