Stock Price Trends

Integra LifeSciences Holdings (IART)

Integra LifeSciences Holdings Corporation develops, manufactures, and markets surgical implants and medical instruments for use in neurosurgery, limb reconstruction, orthopedics, and general surgery. The company is headquartered in Princeton, New Jersey.

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 21.90% per annum.
  • IART price at the close of May 8, 2024 was $24.91 and was lower than the bottom border of the primary price channel by $4.88 (16.39%).
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 86.95% per annum.
  • IART price at the close of May 8, 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 IART 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: April 8, 2021
End date: May 3, 2024

a = 4.8228

b = -0.0007

s = 0.0960

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0007) – 1
= -21.90%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0960) – 1
= 46.83%

April 8, 2021 calculations

Top border of price channel:

Exp(Y482)
= Exp(a + b × X482 + 2 × s)
= Exp(a + b × 700 + 2 × s)
= Exp(4.8228 + -0.0007 × 700 + 2 × 0.0960)
= Exp(4.5409)
= $93.77

Bottom border of price channel:

Exp(Y482)
= Exp(a + b × X482 – 2 × s)
= Exp(a + b × 700 – 2 × s)
= Exp(4.8228 + -0.0007 × 700 – 2 × 0.0960)
= Exp(4.1568)
= $63.86

May 3, 2024 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,821 + 2 × s)
= Exp(4.8228 + -0.0007 × 1,821 + 2 × 0.0960)
= Exp(3.7818)
= $43.90

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,821 – 2 × s)
= Exp(4.8228 + -0.0007 × 1,821 – 2 × 0.0960)
= Exp(3.3977)
= $29.90

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 21.90% per annum.
  • IART price at the close of May 8, 2024 was $24.91 and was lower than the bottom border of the primary price channel by $4.88 (16.39%).

Secondary Trend

Start date: February 8, 2024
End date: May 8, 2024

a = 13.4843

b = -0.0056

s = 0.0566

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0056) – 1
= -86.95%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0566) – 1
= 25.40%

February 8, 2024 calculations

Top border of price channel:

Exp(Y1,196)
= Exp(a + b × X1,196 + 2 × s)
= Exp(a + b × 1,736 + 2 × s)
= Exp(13.4843 + -0.0056 × 1,736 + 2 × 0.0566)
= Exp(3.9127)
= $50.04

Bottom border of price channel:

Exp(Y1,196)
= Exp(a + b × X1,196 – 2 × s)
= Exp(a + b × 1,736 – 2 × s)
= Exp(13.4843 + -0.0056 × 1,736 – 2 × 0.0566)
= Exp(3.6864)
= $39.90

May 8, 2024 calculations

Top border of price channel:

Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(13.4843 + -0.0056 × 1,826 + 2 × 0.0566)
= Exp(3.4107)
= $30.29

Bottom border of price channel:

Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(13.4843 + -0.0056 × 1,826 – 2 × 0.0566)
= Exp(3.1843)
= $24.15

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 86.95% per annum.
  • IART price at the close of May 8, 2024 was inside the secondary price channel.