Columbia Banking System Inc (COLB)
Columbia Banking System, Inc. is the banking holding company for Columbia State Bank providing a range of banking services to small and medium-sized businesses, professionals, and individuals in Washington, Oregon, and Idaho. The company is headquartered in Tacoma, Washington.
Stock Price Trends
Stock price trends estimated using linear regression.
Key facts
- The primary trend is decreasing.
- The decline rate of the primary trend is 19.15% per annum.
- COLB price at the close of July 25, 2024 was $24.19 and was higher than the top border of the primary price channel by $2.61 (12.08%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 1.31% per annum.
- COLB price at the close of July 25, 2024 was inside the secondary price channel.
- The direction of the secondary trend is opposite to the direction of the primary trend. This indicates a possible reversal in the direction of the primary trend.
Linear Regression Model
Model equation:
Yi = α + β × Xi + εi
Top border of price channel:
Exp(Yi) = Exp(a + b × Xi + 2 × s)
Bottom border of price channel:
Exp(Yi) = Exp(a + b × Xi – 2 × s)
where:
i - observation number
Yi - natural logarithm of COLB price
Xi - time index, 1 day interval
σ - standard deviation of εi
a - estimator of α
b - estimator of β
s - estimator of σ
Exp() - calculates the exponent of e
Primary Trend
Start date: January 6, 2021
End date: July 8, 2024
a = 3.9265
b = -0.0006
s = 0.1044
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0006) – 1
= -19.15%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1044) – 1
= 51.85%
January 6, 2021 calculations
Top border of price channel:
Exp(Y365)
= Exp(a + b × X365 + 2 × s)
= Exp(a + b × 530 + 2 × s)
= Exp(3.9265 + -0.0006 × 530 + 2 × 0.1044)
= Exp(3.8267)
= $45.91
Bottom border of price channel:
Exp(Y365)
= Exp(a + b × X365 – 2 × s)
= Exp(a + b × 530 – 2 × s)
= Exp(3.9265 + -0.0006 × 530 – 2 × 0.1044)
= Exp(3.4090)
= $30.23
July 8, 2024 calculations
Top border of price channel:
Exp(Y1,244)
= Exp(a + b × X1,244 + 2 × s)
= Exp(a + b × 1,809 + 2 × s)
= Exp(3.9265 + -0.0006 × 1,809 + 2 × 0.1044)
= Exp(3.0818)
= $21.80
Bottom border of price channel:
Exp(Y1,244)
= Exp(a + b × X1,244 – 2 × s)
= Exp(a + b × 1,809 – 2 × s)
= Exp(3.9265 + -0.0006 × 1,809 – 2 × 0.1044)
= Exp(2.6641)
= $14.35
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 19.15% per annum.
- COLB price at the close of July 25, 2024 was $24.19 and was higher than the top border of the primary price channel by $2.61 (12.08%). This indicates a possible reversal in the primary trend direction.
Secondary Trend
Start date: March 13, 2023
End date: July 25, 2024
a = 2.9281
b = 0.0000
s = 0.0980
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0000) – 1
= 1.31%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0980) – 1
= 48.01%
March 13, 2023 calculations
Top border of price channel:
Exp(Y913)
= Exp(a + b × X913 + 2 × s)
= Exp(a + b × 1,326 + 2 × s)
= Exp(2.9281 + 0.0000 × 1,326 + 2 × 0.0980)
= Exp(3.1714)
= $23.84
Bottom border of price channel:
Exp(Y913)
= Exp(a + b × X913 – 2 × s)
= Exp(a + b × 1,326 – 2 × s)
= Exp(2.9281 + 0.0000 × 1,326 – 2 × 0.0980)
= Exp(2.7793)
= $16.11
July 25, 2024 calculations
Top border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(2.9281 + 0.0000 × 1,826 + 2 × 0.0980)
= Exp(3.1892)
= $24.27
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(2.9281 + 0.0000 × 1,826 – 2 × 0.0980)
= Exp(2.7971)
= $16.40
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 1.31% per annum.
- COLB price at the close of July 25, 2024 was inside the secondary price channel.