Split History
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Columbia Banking System is a bank holding company. Through its wholly owned banking subsidiary, Columbia State Bank, Co. provides a range of banking services to small and medium-sized businesses, personnel and individuals throughout Washington, Oregon and Idaho. Co. provides its personal banking customers a range of account products including noninterest and interest-bearing checking, savings, money market and certificate of deposit accounts. Through its Columbia Trust Company subsidiary, Co. provides a range of fiduciary, investment and administrative trust services, coupled with local, personalized attention to the requirements of each trust. According to our COLB split history records, Columbia Banking System has had 8 splits.
COLB split history picture
Columbia Banking System (COLB) has 8 splits in our COLB split history database. The first split for COLB took place on May 06, 1997. This was a 21 for 20 split, meaning for each 20 shares of COLB owned pre-split, the shareholder now owned 21 shares. For example, a 1000 share position pre-split, became a 1050 share position following the split. COLB's second split took place on May 21, 1998. This was a 3 for 2 split, meaning for each 2 shares of COLB owned pre-split, the shareholder now owned 3 shares. For example, a 1050 share position pre-split, became a 1575 share position following the split. COLB's third split took place on May 10, 1999. This was a 105 for 100 split, meaning for each 100 shares of COLB owned pre-split, the shareholder now owned 105 shares. For example, a 1575 share position pre-split, became a 1653.75 share position following the split. COLB's 4th split took place on May 08, 2000. This was a 11 for 10 split, meaning for each 10 shares of COLB owned pre-split, the shareholder now owned 11 shares. For example, a 1653.75 share position pre-split, became a 1819.125 share position following the split. COLB's 5th split took place on May 24, 2001. This was a 11 for 10 split, meaning for each 10 shares of COLB owned pre-split, the shareholder now owned 11 shares. For example, a 1819.125 share position pre-split, became a 2001.0375 share position following the split. COLB's 6th split took place on April 12, 2002. This was a 105 for 100 split, meaning for each 100 shares of COLB owned pre-split, the shareholder now owned 105 shares. For example, a 2001.0375 share position pre-split, became a 2101.089375 share position following the split. COLB's 7th split took place on May 10, 2004. This was a 105 for 100 split, meaning for each 100 shares of COLB owned pre-split, the shareholder now owned 105 shares. For example, a 2101.089375 share position pre-split, became a 2206.14384375 share position following the split. COLB's 8th split took place on May 06, 1996. This was a 105 for 100 split, meaning for each 100 shares of COLB owned pre-split, the shareholder now owned 105 shares. For example, a 2206.14384375 share position pre-split, became a 2316.4510359375 share position following the split.

When a company such as Columbia Banking System splits its shares, the market capitalization before and after the split takes place remains stable, meaning the shareholder now owns more shares but each are valued at a lower price per share. Often, however, a lower priced stock on a per-share basis can attract a wider range of buyers. If that increased demand causes the share price to appreciate, then the total market capitalization rises post-split. This does not always happen, however, often depending on the underlying fundamentals of the business. Looking at the COLB split history from start to finish, an original position size of 1000 shares would have turned into 2316.4510359375 today. 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, presented on a split-history-adjusted basis factoring in the complete COLB split history. COLB split adjusted history picture

Growth of $10,000.00
With Dividends Reinvested

Start date: 12/07/2009
End date: 12/06/2019
Start price/share: $14.72
End price/share: $39.00
Starting shares: 679.35
Ending shares: 919.87
Dividends reinvested/share: $8.93
Total return: 258.75%
Average Annual Total Return: 13.62%
Starting investment: $10,000.00
Ending investment: $35,867.39
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested

Start date: 12/07/2009
End date: 12/06/2019
Start price/share: $14.72
End price/share: $39.00
Dividends collected/share: $8.93
Total return: 225.61%
Average Annual Total Return: 12.53%
Starting investment: $10,000.00
Ending investment: $32,570.44
Years: 10.00
Date Ratio
05/06/199721 for 20
05/21/19983 for 2
05/10/1999105 for 100
05/08/200011 for 10
05/24/200111 for 10
04/12/2002105 for 100
05/10/2004105 for 100
05/06/1996105 for 100
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