Sterling Construction Company Inc (STRL)
Sterling Construction Company, Inc., a construction company, engages in residential construction, specialty services, and heavy civil activities primarily in the southern United States, the Rocky Mountain states, California, and Hawaii. The company is headquartered in The Woodlands, Texas.
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 130.46% per annum.
- STRL price at the close of July 11, 2025 was $241.76 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 1,020.85% per annum.
- STRL price at the close of July 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 STRL 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: April 22, 2022
End date: January 24, 2025
a = 1.4810
b = 0.0023
s = 0.1204
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0023) – 1
= 130.46%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1204) – 1
= 61.84%
April 22, 2022 calculations
Top border of price channel:
Exp(Y448)
= Exp(a + b × X448 + 2 × s)
= Exp(a + b × 647 + 2 × s)
= Exp(1.4810 + 0.0023 × 647 + 2 × 0.1204)
= Exp(3.2017)
= $24.57
Bottom border of price channel:
Exp(Y448)
= Exp(a + b × X448 – 2 × s)
= Exp(a + b × 647 – 2 × s)
= Exp(1.4810 + 0.0023 × 647 – 2 × 0.1204)
= Exp(2.7202)
= $15.18
January 24, 2025 calculations
Top border of price channel:
Exp(Y1,139)
= Exp(a + b × X1,139 + 2 × s)
= Exp(a + b × 1,655 + 2 × s)
= Exp(1.4810 + 0.0023 × 1,655 + 2 × 0.1204)
= Exp(5.5074)
= $246.51
Bottom border of price channel:
Exp(Y1,139)
= Exp(a + b × X1,139 – 2 × s)
= Exp(a + b × 1,655 – 2 × s)
= Exp(1.4810 + 0.0023 × 1,655 – 2 × 0.1204)
= Exp(5.0260)
= $152.32
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 130.46% per annum.
- STRL price at the close of July 11, 2025 was $241.76 and was inside the primary price channel.
Secondary Trend
Start date: March 7, 2025
End date: July 11, 2025
a = -6.5498
b = 0.0066
s = 0.0653
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0066) – 1
= 1,020.85%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0653) – 1
= 29.86%
March 7, 2025 calculations
Top border of price channel:
Exp(Y1,168)
= Exp(a + b × X1,168 + 2 × s)
= Exp(a + b × 1,697 + 2 × s)
= Exp(-6.5498 + 0.0066 × 1,697 + 2 × 0.0653)
= Exp(4.8167)
= $123.55
Bottom border of price channel:
Exp(Y1,168)
= Exp(a + b × X1,168 – 2 × s)
= Exp(a + b × 1,697 – 2 × s)
= Exp(-6.5498 + 0.0066 × 1,697 – 2 × 0.0653)
= Exp(4.5554)
= $95.14
July 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(-6.5498 + 0.0066 × 1,823 + 2 × 0.0653)
= Exp(5.6509)
= $284.56
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(-6.5498 + 0.0066 × 1,823 – 2 × 0.0653)
= Exp(5.3896)
= $219.12
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 1,020.85% per annum.
- STRL price at the close of July 11, 2025 was inside the secondary price channel.