Stock Price Trends

Edison International (EIX)

Edison International is a public utility holding company based in Rosemead, California. Its subsidiaries include Southern California Edison, and unregulated non-utility business assets Edison Energy.

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 45.76% per annum.
  • EIX price at the close of August 15, 2025 was $55.50 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 106.37% per annum.
  • EIX price at the close of August 15, 2025 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 EIX 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 30, 2024
End date: August 1, 2025

a = 6.8827

b = -0.0017

s = 0.0991

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0017) – 1
= -45.76%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0991) – 1
= 48.62%

July 30, 2024 calculations

Top border of price channel:

Exp(Y993)
= Exp(a + b × X993 + 2 × s)
= Exp(a + b × 1,443 + 2 × s)
= Exp(6.8827 + -0.0017 × 1,443 + 2 × 0.0991)
= Exp(4.6625)
= $105.90

Bottom border of price channel:

Exp(Y993)
= Exp(a + b × X993 – 2 × s)
= Exp(a + b × 1,443 – 2 × s)
= Exp(6.8827 + -0.0017 × 1,443 – 2 × 0.0991)
= Exp(4.2662)
= $71.25

August 1, 2025 calculations

Top border of price channel:

Exp(Y1,245)
= Exp(a + b × X1,245 + 2 × s)
= Exp(a + b × 1,810 + 2 × s)
= Exp(6.8827 + -0.0017 × 1,810 + 2 × 0.0991)
= Exp(4.0474)
= $57.25

Bottom border of price channel:

Exp(Y1,245)
= Exp(a + b × X1,245 – 2 × s)
= Exp(a + b × 1,810 – 2 × s)
= Exp(6.8827 + -0.0017 × 1,810 – 2 × 0.0991)
= Exp(3.6512)
= $38.52

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 45.76% per annum.
  • EIX price at the close of August 15, 2025 was $55.50 and was inside the primary price channel.

Secondary Trend

Start date: June 9, 2025
End date: August 15, 2025

a = 0.3876

b = 0.0020

s = 0.0179

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0020) – 1
= 106.37%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0179) – 1
= 7.41%

June 9, 2025 calculations

Top border of price channel:

Exp(Y1,208)
= Exp(a + b × X1,208 + 2 × s)
= Exp(a + b × 1,757 + 2 × s)
= Exp(0.3876 + 0.0020 × 1,757 + 2 × 0.0179)
= Exp(3.9109)
= $49.94

Bottom border of price channel:

Exp(Y1,208)
= Exp(a + b × X1,208 – 2 × s)
= Exp(a + b × 1,757 – 2 × s)
= Exp(0.3876 + 0.0020 × 1,757 – 2 × 0.0179)
= Exp(3.8395)
= $46.50

August 15, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(0.3876 + 0.0020 × 1,824 + 2 × 0.0179)
= Exp(4.0439)
= $57.05

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(0.3876 + 0.0020 × 1,824 – 2 × 0.0179)
= Exp(3.9725)
= $53.12

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 106.37% per annum.
  • EIX price at the close of August 15, 2025 was inside the secondary price channel.