Power Integrations Inc (POWI)
Power Integrations, Inc. designs, develops, manufactures and markets mixed signal and analog integrated circuits (ICs) and other electronic components and circuits used in high voltage power conversion worldwide. The company is headquartered in San Jose, California.
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 4.77% per annum.
- POWI price at the close of July 26, 2024 was $72.96 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 17.99% per annum.
- POWI price at the close of July 26, 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 POWI 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: December 28, 2020
End date: July 26, 2024
a = 4.5417
b = -0.0001
s = 0.1016
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0001) – 1
= -4.77%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1016) – 1
= 50.12%
December 28, 2020 calculations
Top border of price channel:
Exp(Y358)
= Exp(a + b × X358 + 2 × s)
= Exp(a + b × 518 + 2 × s)
= Exp(4.5417 + -0.0001 × 518 + 2 × 0.1016)
= Exp(4.6756)
= $107.29
Bottom border of price channel:
Exp(Y358)
= Exp(a + b × X358 – 2 × s)
= Exp(a + b × 518 – 2 × s)
= Exp(4.5417 + -0.0001 × 518 – 2 × 0.1016)
= Exp(4.2693)
= $71.47
July 26, 2024 calculations
Top border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(4.5417 + -0.0001 × 1,824 + 2 × 0.1016)
= Exp(4.5008)
= $90.09
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(4.5417 + -0.0001 × 1,824 – 2 × 0.1016)
= Exp(4.0945)
= $60.01
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 4.77% per annum.
- POWI price at the close of July 26, 2024 was $72.96 and was inside the primary price channel.
Secondary Trend
Start date: May 18, 2023
End date: July 26, 2024
a = 5.2214
b = -0.0005
s = 0.0650
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0005) – 1
= -17.99%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0650) – 1
= 29.68%
May 18, 2023 calculations
Top border of price channel:
Exp(Y959)
= Exp(a + b × X959 + 2 × s)
= Exp(a + b × 1,389 + 2 × s)
= Exp(5.2214 + -0.0005 × 1,389 + 2 × 0.0650)
= Exp(4.5966)
= $99.15
Bottom border of price channel:
Exp(Y959)
= Exp(a + b × X959 – 2 × s)
= Exp(a + b × 1,389 – 2 × s)
= Exp(5.2214 + -0.0005 × 1,389 – 2 × 0.0650)
= Exp(4.3367)
= $76.46
July 26, 2024 calculations
Top border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(5.2214 + -0.0005 × 1,824 + 2 × 0.0650)
= Exp(4.3603)
= $78.28
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(5.2214 + -0.0005 × 1,824 – 2 × 0.0650)
= Exp(4.1004)
= $60.36
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 17.99% per annum.
- POWI price at the close of July 26, 2024 was inside the secondary price channel.