Stock Price Trends

Inter Parfums Inc (IPAR)

Inter Parfums, Inc., manufactures, markets and distributes a range of fragrances and fragrance-related products in the United States and internationally. The company is headquartered in New York, New York.

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 2.59% per annum.
  • IPAR price at the close of March 31, 2025 was $113.87 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 87.22% per annum.
  • IPAR price at the close of March 31, 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 IPAR 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: March 1, 2023
End date: March 31, 2025

a = 4.9603

b = -0.0001

s = 0.0661

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0001) – 1
= -2.59%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0661) – 1
= 30.26%

March 1, 2023 calculations

Top border of price channel:

Exp(Y733)
= Exp(a + b × X733 + 2 × s)
= Exp(a + b × 1,064 + 2 × s)
= Exp(4.9603 + -0.0001 × 1,064 + 2 × 0.0661)
= Exp(5.0161)
= $150.82

Bottom border of price channel:

Exp(Y733)
= Exp(a + b × X733 – 2 × s)
= Exp(a + b × 1,064 – 2 × s)
= Exp(4.9603 + -0.0001 × 1,064 – 2 × 0.0661)
= Exp(4.7517)
= $115.78

March 31, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(4.9603 + -0.0001 × 1,825 + 2 × 0.0661)
= Exp(4.9614)
= $142.79

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(4.9603 + -0.0001 × 1,825 – 2 × 0.0661)
= Exp(4.6971)
= $109.63

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 2.59% per annum.
  • IPAR price at the close of March 31, 2025 was $113.87 and was inside the primary price channel.

Secondary Trend

Start date: February 24, 2025
End date: March 31, 2025

a = 15.0297

b = -0.0056

s = 0.0168

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0056) – 1
= -87.22%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0168) – 1
= 6.93%

February 24, 2025 calculations

Top border of price channel:

Exp(Y1,230)
= Exp(a + b × X1,230 + 2 × s)
= Exp(a + b × 1,790 + 2 × s)
= Exp(15.0297 + -0.0056 × 1,790 + 2 × 0.0168)
= Exp(4.9732)
= $144.49

Bottom border of price channel:

Exp(Y1,230)
= Exp(a + b × X1,230 – 2 × s)
= Exp(a + b × 1,790 – 2 × s)
= Exp(15.0297 + -0.0056 × 1,790 – 2 × 0.0168)
= Exp(4.9062)
= $135.12

March 31, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(15.0297 + -0.0056 × 1,825 + 2 × 0.0168)
= Exp(4.7759)
= $118.62

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(15.0297 + -0.0056 × 1,825 – 2 × 0.0168)
= Exp(4.7089)
= $110.93

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 87.22% per annum.
  • IPAR price at the close of March 31, 2025 was inside the secondary price channel.