# 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 80.10% per annum.
- SPWR price at the close of May 23, 2024 was $2.78 and was higher than the top border of the primary price channel by $0.12 (4.55%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 9,505.48% per annum.
- SPWR price at the close of May 23, 2024 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:

Y_{i} = α + β × X_{i} + ε_{i}

Top border of price channel:

Exp(Y_{i}) = Exp(a + b × X_{i} + 2 × s)

Bottom border of price channel:

Exp(Y_{i}) = Exp(a + b × X_{i} – 2 × s)

where:

i - observation number

Y_{i} - natural logarithm of SPWR price

X_{i} - time index, 1 day interval

σ - standard deviation of ε_{i}

a - estimator of α

b - estimator of β

s - estimator of σ

Exp() - calculates the exponent of e

### Primary Trend

Start date: November 10, 2022

End date: May 10, 2024

a = 8.8314

b = -0.0044

s = 0.1118

Annual growth rate:

Exp(365 × b) – 1

= Exp(365 × -0.0044) – 1

= -80.10%

Price channel spread:

Exp(4 × s) – 1

= Exp(4 × 0.1118) – 1

= 56.41%

#### November 10, 2022 calculations

Top border of price channel:

Exp(Y_{874})

= Exp(a + b × X_{874} + 2 × s)

= Exp(a + b × 1,266 + 2 × s)

= Exp(8.8314 + -0.0044 × 1,266 + 2 × 0.1118)

= Exp(3.4550)

= $31.66

Bottom border of price channel:

Exp(Y_{874})

= Exp(a + b × X_{874} – 2 × s)

= Exp(a + b × 1,266 – 2 × s)

= Exp(8.8314 + -0.0044 × 1,266 – 2 × 0.1118)

= Exp(3.0077)

= $20.24

#### May 10, 2024 calculations

Top border of price channel:

Exp(Y_{1,249})

= Exp(a + b × X_{1,249} + 2 × s)

= Exp(a + b × 1,813 + 2 × s)

= Exp(8.8314 + -0.0044 × 1,813 + 2 × 0.1118)

= Exp(1.0354)

= $2.82

Bottom border of price channel:

Exp(Y_{1,249})

= Exp(a + b × X_{1,249} – 2 × s)

= Exp(a + b × 1,813 – 2 × s)

= Exp(8.8314 + -0.0044 × 1,813 – 2 × 0.1118)

= Exp(0.5881)

= $1.80

#### Description

- The primary trend is decreasing.
- The decline rate of the primary trend is 80.10% per annum.
- SPWR price at the close of May 23, 2024 was $2.78 and was higher than the top border of the primary price channel by $0.12 (4.55%). This indicates a possible reversal in the primary trend direction.

### Secondary Trend

Start date: April 22, 2024

End date: May 13, 2024

a = -21.7919

b = 0.0125

s = 0.0522

Annual growth rate:

Exp(365 × b) – 1

= Exp(365 × 0.0125) – 1

= 9,505.48%

Price channel spread:

Exp(4 × s) – 1

= Exp(4 × 0.0522) – 1

= 23.23%

#### April 22, 2024 calculations

Top border of price channel:

Exp(Y_{1,235})

= Exp(a + b × X_{1,235} + 2 × s)

= Exp(a + b × 1,795 + 2 × s)

= Exp(-21.7919 + 0.0125 × 1,795 + 2 × 0.0522)

= Exp(0.7619)

= $2.14

Bottom border of price channel:

Exp(Y_{1,235})

= Exp(a + b × X_{1,235} – 2 × s)

= Exp(a + b × 1,795 – 2 × s)

= Exp(-21.7919 + 0.0125 × 1,795 – 2 × 0.0522)

= Exp(0.5531)

= $1.74

#### May 13, 2024 calculations

Top border of price channel:

Exp(Y_{1,250})

= Exp(a + b × X_{1,250} + 2 × s)

= Exp(a + b × 1,816 + 2 × s)

= Exp(-21.7919 + 0.0125 × 1,816 + 2 × 0.0522)

= Exp(1.0246)

= $2.79

Bottom border of price channel:

Exp(Y_{1,250})

= Exp(a + b × X_{1,250} – 2 × s)

= Exp(a + b × 1,816 – 2 × s)

= Exp(-21.7919 + 0.0125 × 1,816 – 2 × 0.0522)

= Exp(0.8157)

= $2.26

#### Description

- The secondary trend is increasing.
- The growth rate of the secondary trend is 9,505.48% per annum.
- SPWR price at the close of May 23, 2024 was inside the secondary price channel.