WW Grainger Inc (GWW)
W. W. Grainger, Inc. is an American Fortune 500 industrial supply company founded in 1927 in Chicago by William W. (Bill) Grainger.
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 44.87% per annum.
- GWW price at the close of November 19, 2024 was $1,172.07 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 166.07% per annum.
- GWW 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 GWW 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: May 2, 2022
End date: May 28, 2024
a = 5.2116
b = 0.0010
s = 0.0622
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0010) – 1
= 44.87%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0622) – 1
= 28.24%
May 2, 2022 calculations
Top border of price channel:
Exp(Y615)
= Exp(a + b × X615 + 2 × s)
= Exp(a + b × 894 + 2 × s)
= Exp(5.2116 + 0.0010 × 894 + 2 × 0.0622)
= Exp(6.2439)
= $514.85
Bottom border of price channel:
Exp(Y615)
= Exp(a + b × X615 – 2 × s)
= Exp(a + b × 894 – 2 × s)
= Exp(5.2116 + 0.0010 × 894 – 2 × 0.0622)
= Exp(5.9951)
= $401.46
May 28, 2024 calculations
Top border of price channel:
Exp(Y1,135)
= Exp(a + b × X1,135 + 2 × s)
= Exp(a + b × 1,651 + 2 × s)
= Exp(5.2116 + 0.0010 × 1,651 + 2 × 0.0622)
= Exp(7.0127)
= $1,110.62
Bottom border of price channel:
Exp(Y1,135)
= Exp(a + b × X1,135 – 2 × s)
= Exp(a + b × 1,651 – 2 × s)
= Exp(5.2116 + 0.0010 × 1,651 – 2 × 0.0622)
= Exp(6.7639)
= $866.01
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 44.87% per annum.
- GWW price at the close of November 19, 2024 was $1,172.07 and was inside the primary price channel.
Secondary Trend
Start date: August 26, 2024
End date: November 19, 2024
a = 2.1846
b = 0.0027
s = 0.0229
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0027) – 1
= 166.07%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0229) – 1
= 9.61%
August 26, 2024 calculations
Top border of price channel:
Exp(Y1,197)
= Exp(a + b × X1,197 + 2 × s)
= Exp(a + b × 1,741 + 2 × s)
= Exp(2.1846 + 0.0027 × 1,741 + 2 × 0.0229)
= Exp(6.8982)
= $990.51
Bottom border of price channel:
Exp(Y1,197)
= Exp(a + b × X1,197 – 2 × s)
= Exp(a + b × 1,741 – 2 × s)
= Exp(2.1846 + 0.0027 × 1,741 – 2 × 0.0229)
= Exp(6.8065)
= $903.68
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(2.1846 + 0.0027 × 1,826 + 2 × 0.0229)
= Exp(7.1261)
= $1,244.03
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(2.1846 + 0.0027 × 1,826 – 2 × 0.0229)
= Exp(7.0344)
= $1,134.97
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 166.07% per annum.
- GWW price at the close of November 19, 2024 was inside the secondary price channel.