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Video: Compound Annual Growth Rate (CAGR) Definition
COLB Historical Price Range
Date Open High Low Close Volume
06/08/2026 $29.74 $29.99 $29.53 $29.68 4.22M
06/09/2026 $30.00 $30.87 $29.79 $30.15 3.14M
06/10/2026 $30.15 $30.71 $30.13 $30.32 2.76M
06/11/2026 $30.39 $30.84 $30.15 $30.82 2.41M
06/12/2026 $31.00 $31.46 $30.95 $31.31 2.71M
About Columbia Banking System
Columbia Banking System, Inc. is the bank holding company for Umpqua Bank (the Bank). Through the Bank, the Co. provides a broad range of banking, private banking, mortgage, and other financial services to corporate, institutional, small business, and individual customers. The bank offers specialized loans for corporate, middle market, and small business customers, including commercial lines of credit and term loans, and others. It offers deposit products, including non-interest-bearing checking accounts, analyzed business accounts, interest-bearing checking and savings accounts, money market accounts, insured cash sweep and other investment sweep solutions.
COLB historical stock prices picture
Columbia Banking System (COLB) has the following price history information. Looking back at COLB historical stock prices for the last five trading days, on June 08, 2026, COLB opened at $29.74, traded as high as $29.99 and as low as $29.53, and closed at $29.68. Trading volume was a total of 4.22M shares. On June 09, 2026, COLB opened at $30.00, traded as high as $30.87 and as low as $29.79, and closed at $30.15. Trading volume was a total of 3.14M shares. On June 10, 2026, COLB opened at $30.15, traded as high as $30.71 and as low as $30.13, and closed at $30.32. Trading volume was a total of 2.76M shares. On June 11, 2026, COLB opened at $30.39, traded as high as $30.84 and as low as $30.15, and closed at $30.82. Trading volume was a total of 2.41M shares. On June 12, 2026, COLB opened at $31.00, traded as high as $31.46 and as low as $30.95, and closed at $31.31. Trading volume was a total of 2.71M shares.

COLB Historical Stock Prices By Date:

COLB historical cagr picture

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Columbia Banking System shares, starting with a $10,000 purchase of COLB, and working forward through the historical stock price information to today.

Growth of $10,000.00
With Dividends Reinvested
Start date: 06/14/2016
End date: 06/12/2026
Start price/share: $28.19
End price/share: $31.31
Starting shares: 354.74
Ending shares: 545.35
Dividends reinvested/share: $12.89
Total return: 70.75%
Average Annual Total Return: 5.50%
Starting investment: $10,000.00
Ending investment: $17,081.44
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested
Start date: 06/14/2016
End date: 06/12/2026
Start price/share: $28.19
End price/share: $31.31
Dividends collected/share: $12.89
Total return: 56.79%
Average Annual Total Return: 4.60%
Starting investment: $10,000.00
Ending investment: $15,678.95
Years: 10.00
COLB Historical Closing Prices
Date Close
06/08/2026$29.68
06/09/2026$30.15
06/10/2026$30.32
06/11/2026$30.82
06/12/2026$31.31
Financials Historical Prices
COLB is categorized under the Financials sector; below are some other companies in the same sector:

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Also explore: COLB shares outstanding history

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