Spire Inc (SR)
Spire Inc. engages in the purchase, retail distribution, and sale of natural gas to residential, commercial, industrial, and other end-users of natural gas in the United States. The company is headquartered in St. Louis, Missouri.
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 29.11% per annum.
- SR price at the close of June 30, 2025 was $72.99 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 12.10% per annum.
- SR price at the close of June 30, 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 SR 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 11, 2024
End date: June 12, 2025
a = 3.0726
b = 0.0007
s = 0.0333
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0007) – 1
= 29.11%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0333) – 1
= 14.23%
January 11, 2024 calculations
Top border of price channel:
Exp(Y888)
= Exp(a + b × X888 + 2 × s)
= Exp(a + b × 1,289 + 2 × s)
= Exp(3.0726 + 0.0007 × 1,289 + 2 × 0.0333)
= Exp(4.0415)
= $56.91
Bottom border of price channel:
Exp(Y888)
= Exp(a + b × X888 – 2 × s)
= Exp(a + b × 1,289 – 2 × s)
= Exp(3.0726 + 0.0007 × 1,289 – 2 × 0.0333)
= Exp(3.9085)
= $49.82
June 12, 2025 calculations
Top border of price channel:
Exp(Y1,243)
= Exp(a + b × X1,243 + 2 × s)
= Exp(a + b × 1,807 + 2 × s)
= Exp(3.0726 + 0.0007 × 1,807 + 2 × 0.0333)
= Exp(4.4041)
= $81.79
Bottom border of price channel:
Exp(Y1,243)
= Exp(a + b × X1,243 – 2 × s)
= Exp(a + b × 1,807 – 2 × s)
= Exp(3.0726 + 0.0007 × 1,807 – 2 × 0.0333)
= Exp(4.2711)
= $71.60
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 29.11% per annum.
- SR price at the close of June 30, 2025 was $72.99 and was inside the primary price channel.
Secondary Trend
Start date: February 26, 2025
End date: June 30, 2025
a = 4.9346
b = -0.0004
s = 0.0190
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0004) – 1
= -12.10%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0190) – 1
= 7.89%
February 26, 2025 calculations
Top border of price channel:
Exp(Y1,169)
= Exp(a + b × X1,169 + 2 × s)
= Exp(a + b × 1,701 + 2 × s)
= Exp(4.9346 + -0.0004 × 1,701 + 2 × 0.0190)
= Exp(4.3713)
= $79.15
Bottom border of price channel:
Exp(Y1,169)
= Exp(a + b × X1,169 – 2 × s)
= Exp(a + b × 1,701 – 2 × s)
= Exp(4.9346 + -0.0004 × 1,701 – 2 × 0.0190)
= Exp(4.2954)
= $73.36
June 30, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(4.9346 + -0.0004 × 1,825 + 2 × 0.0190)
= Exp(4.3275)
= $75.75
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(4.9346 + -0.0004 × 1,825 – 2 × 0.0190)
= Exp(4.2516)
= $70.22
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 12.10% per annum.
- SR price at the close of June 30, 2025 was inside the secondary price channel.