Portland General Electric Co (POR)
Portland General Electric Company, an integrated electric utility company, is engaged in the generation, wholesaling, transmission, distribution and retail of electricity in the state of Oregon. The company is headquartered in Portland, Oregon.
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 3.96% per annum.
- POR price at the close of May 7, 2025 was $42.58 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 17.88% per annum.
- POR price at the close of May 7, 2025 was lower than the bottom border of the secondary price channel by $3.07 (6.73%). This indicates a possible reversal in the secondary trend direction.
- 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 POR 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: July 27, 2021
End date: July 10, 2024
a = 3.8619
b = -0.0001
s = 0.0559
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0001) – 1
= -3.96%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0559) – 1
= 25.08%
July 27, 2021 calculations
Top border of price channel:
Exp(Y306)
= Exp(a + b × X306 + 2 × s)
= Exp(a + b × 445 + 2 × s)
= Exp(3.8619 + -0.0001 × 445 + 2 × 0.0559)
= Exp(3.9245)
= $50.63
Bottom border of price channel:
Exp(Y306)
= Exp(a + b × X306 – 2 × s)
= Exp(a + b × 445 – 2 × s)
= Exp(3.8619 + -0.0001 × 445 – 2 × 0.0559)
= Exp(3.7007)
= $40.48
July 10, 2024 calculations
Top border of price channel:
Exp(Y1,048)
= Exp(a + b × X1,048 + 2 × s)
= Exp(a + b × 1,524 + 2 × s)
= Exp(3.8619 + -0.0001 × 1,524 + 2 × 0.0559)
= Exp(3.8050)
= $44.93
Bottom border of price channel:
Exp(Y1,048)
= Exp(a + b × X1,048 – 2 × s)
= Exp(a + b × 1,524 – 2 × s)
= Exp(3.8619 + -0.0001 × 1,524 – 2 × 0.0559)
= Exp(3.5812)
= $35.92
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 3.96% per annum.
- POR price at the close of May 7, 2025 was $42.58 and was inside the primary price channel.
Secondary Trend
Start date: August 17, 2023
End date: December 11, 2024
a = 3.0821
b = 0.0005
s = 0.0417
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 17.88%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0417) – 1
= 18.17%
August 17, 2023 calculations
Top border of price channel:
Exp(Y824)
= Exp(a + b × X824 + 2 × s)
= Exp(a + b × 1,196 + 2 × s)
= Exp(3.0821 + 0.0005 × 1,196 + 2 × 0.0417)
= Exp(3.7046)
= $40.63
Bottom border of price channel:
Exp(Y824)
= Exp(a + b × X824 – 2 × s)
= Exp(a + b × 1,196 – 2 × s)
= Exp(3.0821 + 0.0005 × 1,196 – 2 × 0.0417)
= Exp(3.5376)
= $34.38
December 11, 2024 calculations
Top border of price channel:
Exp(Y1,156)
= Exp(a + b × X1,156 + 2 × s)
= Exp(a + b × 1,678 + 2 × s)
= Exp(3.0821 + 0.0005 × 1,678 + 2 × 0.0417)
= Exp(3.9218)
= $50.49
Bottom border of price channel:
Exp(Y1,156)
= Exp(a + b × X1,156 – 2 × s)
= Exp(a + b × 1,678 – 2 × s)
= Exp(3.0821 + 0.0005 × 1,678 – 2 × 0.0417)
= Exp(3.7548)
= $42.73
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 17.88% per annum.
- POR price at the close of May 7, 2025 was lower than the bottom border of the secondary price channel by $3.07 (6.73%). This indicates a possible reversal in the secondary trend direction.