Western Digital Corporation (WDC)
Western Digital Corporation (WDC, commonly known as Western Digital or WD) is an American computer hard disk drive manufacturer and data storage company, headquartered in San Jose, California. It designs, manufactures and sells data technology products, including storage devices, data center systems and cloud storage services.
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 98.33% per annum.
- WDC price at the close of May 20, 2024 was $73.05 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 176.37% per annum.
- WDC price at the close of May 20, 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 WDC 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 14, 2023
End date: May 20, 2024
a = 0.8211
b = 0.0019
s = 0.0618
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0019) – 1
= 98.33%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0618) – 1
= 28.04%
April 14, 2023 calculations
Top border of price channel:
Exp(Y982)
= Exp(a + b × X982 + 2 × s)
= Exp(a + b × 1,424 + 2 × s)
= Exp(0.8211 + 0.0019 × 1,424 + 2 × 0.0618)
= Exp(3.6162)
= $37.20
Bottom border of price channel:
Exp(Y982)
= Exp(a + b × X982 – 2 × s)
= Exp(a + b × 1,424 – 2 × s)
= Exp(0.8211 + 0.0019 × 1,424 – 2 × 0.0618)
= Exp(3.3690)
= $29.05
May 20, 2024 calculations
Top border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(0.8211 + 0.0019 × 1,826 + 2 × 0.0618)
= Exp(4.3704)
= $79.07
Bottom border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(0.8211 + 0.0019 × 1,826 – 2 × 0.0618)
= Exp(4.1232)
= $61.75
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 98.33% per annum.
- WDC price at the close of May 20, 2024 was $73.05 and was inside the primary price channel.
Secondary Trend
Start date: October 19, 2023
End date: May 20, 2024
a = -0.7563
b = 0.0028
s = 0.0414
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0028) – 1
= 176.37%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0414) – 1
= 17.99%
October 19, 2023 calculations
Top border of price channel:
Exp(Y1,112)
= Exp(a + b × X1,112 + 2 × s)
= Exp(a + b × 1,612 + 2 × s)
= Exp(-0.7563 + 0.0028 × 1,612 + 2 × 0.0414)
= Exp(3.8160)
= $45.42
Bottom border of price channel:
Exp(Y1,112)
= Exp(a + b × X1,112 – 2 × s)
= Exp(a + b × 1,612 – 2 × s)
= Exp(-0.7563 + 0.0028 × 1,612 – 2 × 0.0414)
= Exp(3.6506)
= $38.50
May 20, 2024 calculations
Top border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(-0.7563 + 0.0028 × 1,826 + 2 × 0.0414)
= Exp(4.4121)
= $82.44
Bottom border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(-0.7563 + 0.0028 × 1,826 – 2 × 0.0414)
= Exp(4.2466)
= $69.87
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 176.37% per annum.
- WDC price at the close of May 20, 2024 was inside the secondary price channel.