Stock Price Trends

Sempra Energy (SRE)

Sempra Energy is a North American energy infrastructure company based in San Diego, California. Sempra Energy's focus is on electric and natural gas infrastructure. Its operating companies include: Southern California Gas Company (SoCalGas) and San Diego Gas & Electric (SDG&E) in Southern California; Oncor Electric Delivery Company (Oncor) in Texas; Sempra LNG; and IEnova, based in Mexico.

Stock Price Trends

Stock price trends estimated using linear regression.

Key facts

  • The primary trend is increasing.
  • The growth rate of the primary trend is 46.36% per annum.
  • SRE price at the close of September 11, 2025 was $83.47 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 0.86% per annum.
  • SRE price at the close of September 11, 2025 was inside the secondary price channel.

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 SRE 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: March 3, 2025
End date: September 11, 2025

a = 2.5178

b = 0.0010

s = 0.0298

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0010) – 1
= 46.36%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0298) – 1
= 12.67%

March 3, 2025 calculations

Top border of price channel:

Exp(Y1,121)
= Exp(a + b × X1,121 + 2 × s)
= Exp(a + b × 1,631 + 2 × s)
= Exp(2.5178 + 0.0010 × 1,631 + 2 × 0.0298)
= Exp(4.2796)
= $72.21

Bottom border of price channel:

Exp(Y1,121)
= Exp(a + b × X1,121 – 2 × s)
= Exp(a + b × 1,631 – 2 × s)
= Exp(2.5178 + 0.0010 × 1,631 – 2 × 0.0298)
= Exp(4.1603)
= $64.09

September 11, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(2.5178 + 0.0010 × 1,823 + 2 × 0.0298)
= Exp(4.4800)
= $88.23

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(2.5178 + 0.0010 × 1,823 – 2 × 0.0298)
= Exp(4.3606)
= $78.31

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 46.36% per annum.
  • SRE price at the close of September 11, 2025 was $83.47 and was inside the primary price channel.

Secondary Trend

Start date: July 29, 2025
End date: September 11, 2025

a = 4.3621

b = 0.0000

s = 0.0107

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0000) – 1
= 0.86%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0107) – 1
= 4.35%

July 29, 2025 calculations

Top border of price channel:

Exp(Y1,223)
= Exp(a + b × X1,223 + 2 × s)
= Exp(a + b × 1,779 + 2 × s)
= Exp(4.3621 + 0.0000 × 1,779 + 2 × 0.0107)
= Exp(4.4250)
= $83.51

Bottom border of price channel:

Exp(Y1,223)
= Exp(a + b × X1,223 – 2 × s)
= Exp(a + b × 1,779 – 2 × s)
= Exp(4.3621 + 0.0000 × 1,779 – 2 × 0.0107)
= Exp(4.3824)
= $80.03

September 11, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(4.3621 + 0.0000 × 1,823 + 2 × 0.0107)
= Exp(4.4260)
= $83.60

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(4.3621 + 0.0000 × 1,823 – 2 × 0.0107)
= Exp(4.3834)
= $80.11

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 0.86% per annum.
  • SRE price at the close of September 11, 2025 was inside the secondary price channel.