Stock Price Trends

CDW Corp (CDW)

CDW Corporation, headquartered in Lincolnshire, Illinois, is a provider of technology products and services for business, government and education.

Stock Price Trends

Stock price trends estimated using linear regression.

Key facts

  • The primary trend is increasing.
  • The growth rate of the primary trend is 2.89% per annum.
  • CDW price at the close of July 25, 2024 was $228.62 and was higher than the top border of the primary price channel by $13.92 (6.48%).
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 20.98% per annum.
  • CDW price at the close of July 25, 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 CDW 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: February 10, 2021
End date: August 2, 2023

a = 5.0813

b = 0.0001

s = 0.0727

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0001) – 1
= 2.89%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0727) – 1
= 33.73%

February 10, 2021 calculations

Top border of price channel:

Exp(Y389)
= Exp(a + b × X389 + 2 × s)
= Exp(a + b × 565 + 2 × s)
= Exp(5.0813 + 0.0001 × 565 + 2 × 0.0727)
= Exp(5.2708)
= $194.57

Bottom border of price channel:

Exp(Y389)
= Exp(a + b × X389 – 2 × s)
= Exp(a + b × 565 – 2 × s)
= Exp(5.0813 + 0.0001 × 565 – 2 × 0.0727)
= Exp(4.9801)
= $145.49

August 2, 2023 calculations

Top border of price channel:

Exp(Y1,011)
= Exp(a + b × X1,011 + 2 × s)
= Exp(a + b × 1,468 + 2 × s)
= Exp(5.0813 + 0.0001 × 1,468 + 2 × 0.0727)
= Exp(5.3413)
= $208.78

Bottom border of price channel:

Exp(Y1,011)
= Exp(a + b × X1,011 – 2 × s)
= Exp(a + b × 1,468 – 2 × s)
= Exp(5.0813 + 0.0001 × 1,468 – 2 × 0.0727)
= Exp(5.0506)
= $156.12

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 2.89% per annum.
  • CDW price at the close of July 25, 2024 was $228.62 and was higher than the top border of the primary price channel by $13.92 (6.48%).

Secondary Trend

Start date: April 22, 2022
End date: July 25, 2024

a = 4.5279

b = 0.0005

s = 0.0658

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 20.98%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0658) – 1
= 30.10%

April 22, 2022 calculations

Top border of price channel:

Exp(Y691)
= Exp(a + b × X691 + 2 × s)
= Exp(a + b × 1,001 + 2 × s)
= Exp(4.5279 + 0.0005 × 1,001 + 2 × 0.0658)
= Exp(5.1818)
= $178.01

Bottom border of price channel:

Exp(Y691)
= Exp(a + b × X691 – 2 × s)
= Exp(a + b × 1,001 – 2 × s)
= Exp(4.5279 + 0.0005 × 1,001 – 2 × 0.0658)
= Exp(4.9187)
= $136.82

July 25, 2024 calculations

Top border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(4.5279 + 0.0005 × 1,826 + 2 × 0.0658)
= Exp(5.6123)
= $273.77

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(4.5279 + 0.0005 × 1,826 – 2 × 0.0658)
= Exp(5.3492)
= $210.43

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 20.98% per annum.
  • CDW price at the close of July 25, 2024 was inside the secondary price channel.