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 4.11% per annum.
  • IPAR price at the close of April 29, 2025 was $109.95 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 73.71% per annum.
  • IPAR price at the close of April 29, 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: April 29, 2025

a = 5.0141

b = -0.0001

s = 0.0711

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0001) – 1
= -4.11%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0711) – 1
= 32.92%

March 1, 2023 calculations

Top border of price channel:

Exp(Y713)
= Exp(a + b × X713 + 2 × s)
= Exp(a + b × 1,035 + 2 × s)
= Exp(5.0141 + -0.0001 × 1,035 + 2 × 0.0711)
= Exp(5.0373)
= $154.05

Bottom border of price channel:

Exp(Y713)
= Exp(a + b × X713 – 2 × s)
= Exp(a + b × 1,035 – 2 × s)
= Exp(5.0141 + -0.0001 × 1,035 – 2 × 0.0711)
= Exp(4.7527)
= $115.90

April 29, 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(5.0141 + -0.0001 × 1,825 + 2 × 0.0711)
= Exp(4.9464)
= $140.67

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(5.0141 + -0.0001 × 1,825 – 2 × 0.0711)
= Exp(4.6618)
= $105.83

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 4.11% per annum.
  • IPAR price at the close of April 29, 2025 was $109.95 and was inside the primary price channel.

Secondary Trend

Start date: January 21, 2025
End date: April 29, 2025

a = 11.3195

b = -0.0037

s = 0.0408

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0037) – 1
= -73.71%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0408) – 1
= 17.72%

January 21, 2025 calculations

Top border of price channel:

Exp(Y1,187)
= Exp(a + b × X1,187 + 2 × s)
= Exp(a + b × 1,727 + 2 × s)
= Exp(11.3195 + -0.0037 × 1,727 + 2 × 0.0408)
= Exp(5.0793)
= $160.67

Bottom border of price channel:

Exp(Y1,187)
= Exp(a + b × X1,187 – 2 × s)
= Exp(a + b × 1,727 – 2 × s)
= Exp(11.3195 + -0.0037 × 1,727 – 2 × 0.0408)
= Exp(4.9162)
= $136.49

April 29, 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(11.3195 + -0.0037 × 1,825 + 2 × 0.0408)
= Exp(4.7206)
= $112.24

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(11.3195 + -0.0037 × 1,825 – 2 × 0.0408)
= Exp(4.5575)
= $95.34

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 73.71% per annum.
  • IPAR price at the close of April 29, 2025 was inside the secondary price channel.