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 27.41% per annum.
  • TFX price at the close of July 26, 2024 was $220.30 and was higher than the top border of the primary price channel by $53.07 (31.73%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 4.51% per annum.
  • TFX price at the close of July 26, 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 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: November 30, 2020
End date: March 20, 2023

a = 6.5322

b = -0.0009

s = 0.0938

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0009) – 1
= -27.41%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0938) – 1
= 45.55%

November 30, 2020 calculations

Top border of price channel:

Exp(Y339)
= Exp(a + b × X339 + 2 × s)
= Exp(a + b × 490 + 2 × s)
= Exp(6.5322 + -0.0009 × 490 + 2 × 0.0938)
= Exp(6.2900)
= $539.13

Bottom border of price channel:

Exp(Y339)
= Exp(a + b × X339 – 2 × s)
= Exp(a + b × 490 – 2 × s)
= Exp(6.5322 + -0.0009 × 490 – 2 × 0.0938)
= Exp(5.9146)
= $370.40

March 20, 2023 calculations

Top border of price channel:

Exp(Y917)
= Exp(a + b × X917 + 2 × s)
= Exp(a + b × 1,330 + 2 × s)
= Exp(6.5322 + -0.0009 × 1,330 + 2 × 0.0938)
= Exp(5.5529)
= $257.98

Bottom border of price channel:

Exp(Y917)
= Exp(a + b × X917 – 2 × s)
= Exp(a + b × 1,330 – 2 × s)
= Exp(6.5322 + -0.0009 × 1,330 – 2 × 0.0938)
= Exp(5.1775)
= $177.24

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 27.41% per annum.
  • TFX price at the close of July 26, 2024 was $220.30 and was higher than the top border of the primary price channel by $53.07 (31.73%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: June 10, 2022
End date: July 26, 2024

a = 5.6105

b = -0.0001

s = 0.0864

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0001) – 1
= -4.51%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0864) – 1
= 41.29%

June 10, 2022 calculations

Top border of price channel:

Exp(Y724)
= Exp(a + b × X724 + 2 × s)
= Exp(a + b × 1,047 + 2 × s)
= Exp(5.6105 + -0.0001 × 1,047 + 2 × 0.0864)
= Exp(5.6508)
= $284.52

Bottom border of price channel:

Exp(Y724)
= Exp(a + b × X724 – 2 × s)
= Exp(a + b × 1,047 – 2 × s)
= Exp(5.6105 + -0.0001 × 1,047 – 2 × 0.0864)
= Exp(5.3051)
= $201.37

July 26, 2024 calculations

Top border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(5.6105 + -0.0001 × 1,824 + 2 × 0.0864)
= Exp(5.5525)
= $257.88

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(5.6105 + -0.0001 × 1,824 – 2 × 0.0864)
= Exp(5.2068)
= $182.51

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 4.51% per annum.
  • TFX price at the close of July 26, 2024 was inside the secondary price channel.