Stock Price Trends

Gentherm Inc (THRM)

Gentherm Incorporated designs, develops, manufactures and markets thermal management technologies. The company is headquartered in Northville, 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 18.91% per annum.
  • THRM price at the close of March 13, 2025 was $30.15 and was lower than the bottom border of the primary price channel by $2.71 (8.25%).
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 44.95% per annum.
  • THRM price at the close of March 13, 2025 was lower than the bottom border of the secondary price channel by $1.13 (3.60%).

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 THRM 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: July 29, 2021
End date: March 13, 2025

a = 4.7370

b = -0.0006

s = 0.0990

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0006) – 1
= -18.91%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0990) – 1
= 48.58%

July 29, 2021 calculations

Top border of price channel:

Exp(Y346)
= Exp(a + b × X346 + 2 × s)
= Exp(a + b × 500 + 2 × s)
= Exp(4.7370 + -0.0006 × 500 + 2 × 0.0990)
= Exp(4.6479)
= $104.36

Bottom border of price channel:

Exp(Y346)
= Exp(a + b × X346 – 2 × s)
= Exp(a + b × 500 – 2 × s)
= Exp(4.7370 + -0.0006 × 500 – 2 × 0.0990)
= Exp(4.2520)
= $70.24

March 13, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(4.7370 + -0.0006 × 1,823 + 2 × 0.0990)
= Exp(3.8882)
= $48.82

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(4.7370 + -0.0006 × 1,823 – 2 × 0.0990)
= Exp(3.4923)
= $32.86

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 18.91% per annum.
  • THRM price at the close of March 13, 2025 was $30.15 and was lower than the bottom border of the primary price channel by $2.71 (8.25%).

Secondary Trend

Start date: May 30, 2024
End date: March 13, 2025

a = 6.5230

b = -0.0016

s = 0.0492

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0016) – 1
= -44.95%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0492) – 1
= 21.76%

May 30, 2024 calculations

Top border of price channel:

Exp(Y1,059)
= Exp(a + b × X1,059 + 2 × s)
= Exp(a + b × 1,536 + 2 × s)
= Exp(6.5230 + -0.0016 × 1,536 + 2 × 0.0492)
= Exp(4.1091)
= $60.89

Bottom border of price channel:

Exp(Y1,059)
= Exp(a + b × X1,059 – 2 × s)
= Exp(a + b × 1,536 – 2 × s)
= Exp(6.5230 + -0.0016 × 1,536 – 2 × 0.0492)
= Exp(3.9123)
= $50.01

March 13, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(6.5230 + -0.0016 × 1,823 + 2 × 0.0492)
= Exp(3.6397)
= $38.08

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(6.5230 + -0.0016 × 1,823 – 2 × 0.0492)
= Exp(3.4428)
= $31.28

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 44.95% per annum.
  • THRM price at the close of March 13, 2025 was lower than the bottom border of the secondary price channel by $1.13 (3.60%).