Stock Price Trends

Teleflex Incorporated (TFX)

Teleflex Incorporated, headquartered in Wayne, Pennsylvania, is an American provider of specialty medical devices for a range of procedures in critical care and surgery.

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 67.33% per annum.
  • TFX price at the close of January 27, 2025 was $183.66 and was higher than the top border of the primary price channel by $5.94 (3.34%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 27.78% per annum.
  • TFX price at the close of January 27, 2025 was inside the secondary price channel.
  • The direction of the secondary trend is opposite to the direction of the primary trend. This indicates a possible reversal in the direction of the primary trend.

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 TFX 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: August 27, 2024
End date: January 15, 2025

a = 10.6880

b = -0.0031

s = 0.0442

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0031) – 1
= -67.33%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0442) – 1
= 19.33%

August 27, 2024 calculations

Top border of price channel:

Exp(Y1,153)
= Exp(a + b × X1,153 + 2 × s)
= Exp(a + b × 1,673 + 2 × s)
= Exp(10.6880 + -0.0031 × 1,673 + 2 × 0.0442)
= Exp(5.6491)
= $284.03

Bottom border of price channel:

Exp(Y1,153)
= Exp(a + b × X1,153 – 2 × s)
= Exp(a + b × 1,673 – 2 × s)
= Exp(10.6880 + -0.0031 × 1,673 – 2 × 0.0442)
= Exp(5.4724)
= $238.03

January 15, 2025 calculations

Top border of price channel:

Exp(Y1,249)
= Exp(a + b × X1,249 + 2 × s)
= Exp(a + b × 1,814 + 2 × s)
= Exp(10.6880 + -0.0031 × 1,814 + 2 × 0.0442)
= Exp(5.2170)
= $184.38

Bottom border of price channel:

Exp(Y1,249)
= Exp(a + b × X1,249 – 2 × s)
= Exp(a + b × 1,814 – 2 × s)
= Exp(10.6880 + -0.0031 × 1,814 – 2 × 0.0442)
= Exp(5.0403)
= $154.51

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 67.33% per annum.
  • TFX price at the close of January 27, 2025 was $183.66 and was higher than the top border of the primary price channel by $5.94 (3.34%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: December 16, 2024
End date: January 27, 2025

a = 3.9750

b = 0.0007

s = 0.0112

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0007) – 1
= 27.78%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0112) – 1
= 4.59%

December 16, 2024 calculations

Top border of price channel:

Exp(Y1,230)
= Exp(a + b × X1,230 + 2 × s)
= Exp(a + b × 1,784 + 2 × s)
= Exp(3.9750 + 0.0007 × 1,784 + 2 × 0.0112)
= Exp(5.1957)
= $180.49

Bottom border of price channel:

Exp(Y1,230)
= Exp(a + b × X1,230 – 2 × s)
= Exp(a + b × 1,784 – 2 × s)
= Exp(3.9750 + 0.0007 × 1,784 – 2 × 0.0112)
= Exp(5.1509)
= $172.58

January 27, 2025 calculations

Top border of price channel:

Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(3.9750 + 0.0007 × 1,826 + 2 × 0.0112)
= Exp(5.2239)
= $185.66

Bottom border of price channel:

Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(3.9750 + 0.0007 × 1,826 – 2 × 0.0112)
= Exp(5.1791)
= $177.52

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 27.78% per annum.
  • TFX price at the close of January 27, 2025 was inside the secondary price channel.