SunPower Corporation (SPWR)
SunPower Corporation offers solar solutions globally.
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 76.87% per annum.
- SPWR price at the close of July 25, 2024 was $0.97 and was lower than the bottom border of the primary price channel by $0.37 (27.53%).
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 99.91% per annum.
- SPWR price at the close of July 25, 2024 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 SPWR 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: August 5, 2022
End date: May 13, 2024
a = 7.9119
b = -0.0040
s = 0.1479
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0040) – 1
= -76.87%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1479) – 1
= 80.66%
August 5, 2022 calculations
Top border of price channel:
Exp(Y763)
= Exp(a + b × X763 + 2 × s)
= Exp(a + b × 1,106 + 2 × s)
= Exp(7.9119 + -0.0040 × 1,106 + 2 × 0.1479)
= Exp(3.7711)
= $43.43
Bottom border of price channel:
Exp(Y763)
= Exp(a + b × X763 – 2 × s)
= Exp(a + b × 1,106 – 2 × s)
= Exp(7.9119 + -0.0040 × 1,106 – 2 × 0.1479)
= Exp(3.1796)
= $24.04
May 13, 2024 calculations
Top border of price channel:
Exp(Y1,207)
= Exp(a + b × X1,207 + 2 × s)
= Exp(a + b × 1,753 + 2 × s)
= Exp(7.9119 + -0.0040 × 1,753 + 2 × 0.1479)
= Exp(1.1758)
= $3.24
Bottom border of price channel:
Exp(Y1,207)
= Exp(a + b × X1,207 – 2 × s)
= Exp(a + b × 1,753 – 2 × s)
= Exp(7.9119 + -0.0040 × 1,753 – 2 × 0.1479)
= Exp(0.5843)
= $1.79
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 76.87% per annum.
- SPWR price at the close of July 25, 2024 was $0.97 and was lower than the bottom border of the primary price channel by $0.37 (27.53%).
Secondary Trend
Start date: May 30, 2024
End date: July 25, 2024
a = 35.6351
b = -0.0193
s = 0.2858
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0193) – 1
= -99.91%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.2858) – 1
= 213.71%
May 30, 2024 calculations
Top border of price channel:
Exp(Y1,219)
= Exp(a + b × X1,219 + 2 × s)
= Exp(a + b × 1,770 + 2 × s)
= Exp(35.6351 + -0.0193 × 1,770 + 2 × 0.2858)
= Exp(1.9896)
= $7.31
Bottom border of price channel:
Exp(Y1,219)
= Exp(a + b × X1,219 – 2 × s)
= Exp(a + b × 1,770 – 2 × s)
= Exp(35.6351 + -0.0193 × 1,770 – 2 × 0.2858)
= Exp(0.8463)
= $2.33
July 25, 2024 calculations
Top border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(35.6351 + -0.0193 × 1,826 + 2 × 0.2858)
= Exp(0.9071)
= $2.48
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(35.6351 + -0.0193 × 1,826 – 2 × 0.2858)
= Exp(-0.2362)
= $0.79
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 99.91% per annum.
- SPWR price at the close of July 25, 2024 was inside the secondary price channel.