Sunrun Inc (RUN)
Sunrun Inc. is dedicated to the design, development, installation, sale, ownership and maintenance of residential solar energy systems in the United States. The company is headquartered in San Francisco, California.
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 248.57% per annum.
- RUN price at the close of August 15, 2025 was $13.92 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 2,433.62% per annum.
- RUN price at the close of August 15, 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 RUN 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: February 28, 2025
End date: August 15, 2025
a = -3.8553
b = 0.0034
s = 0.1589
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0034) – 1
= 248.57%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1589) – 1
= 88.79%
February 28, 2025 calculations
Top border of price channel:
Exp(Y1,139)
= Exp(a + b × X1,139 + 2 × s)
= Exp(a + b × 1,656 + 2 × s)
= Exp(-3.8553 + 0.0034 × 1,656 + 2 × 0.1589)
= Exp(2.1277)
= $8.40
Bottom border of price channel:
Exp(Y1,139)
= Exp(a + b × X1,139 – 2 × s)
= Exp(a + b × 1,656 – 2 × s)
= Exp(-3.8553 + 0.0034 × 1,656 – 2 × 0.1589)
= Exp(1.4922)
= $4.45
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(-3.8553 + 0.0034 × 1,824 + 2 × 0.1589)
= Exp(2.7024)
= $14.92
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(-3.8553 + 0.0034 × 1,824 – 2 × 0.1589)
= Exp(2.0670)
= $7.90
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 248.57% per annum.
- RUN price at the close of August 15, 2025 was $13.92 and was inside the primary price channel.
Secondary Trend
Start date: June 17, 2025
End date: August 15, 2025
a = -13.6387
b = 0.0089
s = 0.1267
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0089) – 1
= 2,433.62%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1267) – 1
= 65.98%
June 17, 2025 calculations
Top border of price channel:
Exp(Y1,214)
= Exp(a + b × X1,214 + 2 × s)
= Exp(a + b × 1,765 + 2 × s)
= Exp(-13.6387 + 0.0089 × 1,765 + 2 × 0.1267)
= Exp(2.2445)
= $9.44
Bottom border of price channel:
Exp(Y1,214)
= Exp(a + b × X1,214 – 2 × s)
= Exp(a + b × 1,765 – 2 × s)
= Exp(-13.6387 + 0.0089 × 1,765 – 2 × 0.1267)
= Exp(1.7378)
= $5.68
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(-13.6387 + 0.0089 × 1,824 + 2 × 0.1267)
= Exp(2.7670)
= $15.91
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(-13.6387 + 0.0089 × 1,824 – 2 × 0.1267)
= Exp(2.2603)
= $9.59
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 2,433.62% per annum.
- RUN price at the close of August 15, 2025 was inside the secondary price channel.