Stock Price Trends

Unifirst Corporation (UNF)

UniFirst Corporation provides workplace uniforms and protective work clothing in the United States, Europe, and Canada. The company is headquartered in Wilmington, Massachusetts.

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 47.21% per annum.
  • UNF price at the close of November 19, 2024 was $192.83 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 12.66% per annum.
  • UNF price at the close of November 19, 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 UNF 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 4, 2024
End date: November 19, 2024

a = 3.3578

b = 0.0011

s = 0.0433

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0011) – 1
= 47.21%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0433) – 1
= 18.90%

April 4, 2024 calculations

Top border of price channel:

Exp(Y1,098)
= Exp(a + b × X1,098 + 2 × s)
= Exp(a + b × 1,597 + 2 × s)
= Exp(3.3578 + 0.0011 × 1,597 + 2 × 0.0433)
= Exp(5.1363)
= $170.08

Bottom border of price channel:

Exp(Y1,098)
= Exp(a + b × X1,098 – 2 × s)
= Exp(a + b × 1,597 – 2 × s)
= Exp(3.3578 + 0.0011 × 1,597 – 2 × 0.0433)
= Exp(4.9632)
= $143.05

November 19, 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(3.3578 + 0.0011 × 1,826 + 2 × 0.0433)
= Exp(5.3789)
= $216.78

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(3.3578 + 0.0011 × 1,826 – 2 × 0.0433)
= Exp(5.2058)
= $182.32

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 47.21% per annum.
  • UNF price at the close of November 19, 2024 was $192.83 and was inside the primary price channel.

Secondary Trend

Start date: July 16, 2024
End date: November 19, 2024

a = 4.6635

b = 0.0003

s = 0.0265

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0003) – 1
= 12.66%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0265) – 1
= 11.19%

July 16, 2024 calculations

Top border of price channel:

Exp(Y1,168)
= Exp(a + b × X1,168 + 2 × s)
= Exp(a + b × 1,700 + 2 × s)
= Exp(4.6635 + 0.0003 × 1,700 + 2 × 0.0265)
= Exp(5.2715)
= $194.71

Bottom border of price channel:

Exp(Y1,168)
= Exp(a + b × X1,168 – 2 × s)
= Exp(a + b × 1,700 – 2 × s)
= Exp(4.6635 + 0.0003 × 1,700 – 2 × 0.0265)
= Exp(5.1654)
= $175.11

November 19, 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(4.6635 + 0.0003 × 1,826 + 2 × 0.0265)
= Exp(5.3127)
= $202.89

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(4.6635 + 0.0003 × 1,826 – 2 × 0.0265)
= Exp(5.2066)
= $182.47

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 12.66% per annum.
  • UNF price at the close of November 19, 2024 was inside the secondary price channel.