Gentex Corporation (GNTX)
Gentex Corporation designs, develops, manufactures, markets, and supplies digital vision, connected car, tinted glass, and fire protection products in the United States, Germany, Japan, Mexico, and internationally. The company is headquartered in Zeeland, Michigan.
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 23.64% per annum.
- GNTX price at the close of January 24, 2025 was $27.73 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 7.91% per annum.
- GNTX price at the close of January 24, 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 GNTX 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 8, 2024
End date: January 24, 2025
a = 4.6754
b = -0.0007
s = 0.0368
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0007) – 1
= -23.64%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0368) – 1
= 15.84%
February 8, 2024 calculations
Top border of price channel:
Exp(Y1,016)
= Exp(a + b × X1,016 + 2 × s)
= Exp(a + b × 1,473 + 2 × s)
= Exp(4.6754 + -0.0007 × 1,473 + 2 × 0.0368)
= Exp(3.6607)
= $38.89
Bottom border of price channel:
Exp(Y1,016)
= Exp(a + b × X1,016 – 2 × s)
= Exp(a + b × 1,473 – 2 × s)
= Exp(4.6754 + -0.0007 × 1,473 – 2 × 0.0368)
= Exp(3.5137)
= $33.57
January 24, 2025 calculations
Top border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(4.6754 + -0.0007 × 1,824 + 2 × 0.0368)
= Exp(3.4014)
= $30.01
Bottom border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(4.6754 + -0.0007 × 1,824 – 2 × 0.0368)
= Exp(3.2544)
= $25.90
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 23.64% per annum.
- GNTX price at the close of January 24, 2025 was $27.73 and was inside the primary price channel.
Secondary Trend
Start date: July 30, 2024
End date: January 24, 2025
a = 3.7748
b = -0.0002
s = 0.0330
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0002) – 1
= -7.91%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0330) – 1
= 14.10%
July 30, 2024 calculations
Top border of price channel:
Exp(Y1,134)
= Exp(a + b × X1,134 + 2 × s)
= Exp(a + b × 1,646 + 2 × s)
= Exp(3.7748 + -0.0002 × 1,646 + 2 × 0.0330)
= Exp(3.4692)
= $32.11
Bottom border of price channel:
Exp(Y1,134)
= Exp(a + b × X1,134 – 2 × s)
= Exp(a + b × 1,646 – 2 × s)
= Exp(3.7748 + -0.0002 × 1,646 – 2 × 0.0330)
= Exp(3.3373)
= $28.14
January 24, 2025 calculations
Top border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(3.7748 + -0.0002 × 1,824 + 2 × 0.0330)
= Exp(3.4290)
= $30.85
Bottom border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(3.7748 + -0.0002 × 1,824 – 2 × 0.0330)
= Exp(3.2971)
= $27.03
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 7.91% per annum.
- GNTX price at the close of January 24, 2025 was inside the secondary price channel.