SanDisk Corp (SNDK)
None
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 17.34% per annum.
- SNDK price at the close of April 29, 2025 was $32.94 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 59.84% per annum.
- SNDK price at the close of April 29, 2025 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 SNDK 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, 2025
End date: April 29, 2025
a = 3.4911
b = -0.0005
s = 0.0530
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0005) – 1
= -17.34%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0530) – 1
= 23.62%
April 4, 2025 calculations
Top border of price channel:
Exp(Y29)
= Exp(a + b × X29 + 2 × s)
= Exp(a + b × 39 + 2 × s)
= Exp(3.4911 + -0.0005 × 39 + 2 × 0.0530)
= Exp(3.5767)
= $35.76
Bottom border of price channel:
Exp(Y29)
= Exp(a + b × X29 – 2 × s)
= Exp(a + b × 39 – 2 × s)
= Exp(3.4911 + -0.0005 × 39 – 2 × 0.0530)
= Exp(3.3647)
= $28.93
April 29, 2025 calculations
Top border of price channel:
Exp(Y45)
= Exp(a + b × X45 + 2 × s)
= Exp(a + b × 64 + 2 × s)
= Exp(3.4911 + -0.0005 × 64 + 2 × 0.0530)
= Exp(3.5637)
= $35.29
Bottom border of price channel:
Exp(Y45)
= Exp(a + b × X45 – 2 × s)
= Exp(a + b × 64 – 2 × s)
= Exp(3.4911 + -0.0005 × 64 – 2 × 0.0530)
= Exp(3.3517)
= $28.55
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 17.34% per annum.
- SNDK price at the close of April 29, 2025 was $32.94 and was inside the primary price channel.
Secondary Trend
Start date: April 9, 2025
End date: April 29, 2025
a = 3.6031
b = -0.0025
s = 0.0538
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0025) – 1
= -59.84%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0538) – 1
= 23.99%
April 9, 2025 calculations
Top border of price channel:
Exp(Y32)
= Exp(a + b × X32 + 2 × s)
= Exp(a + b × 44 + 2 × s)
= Exp(3.6031 + -0.0025 × 44 + 2 × 0.0538)
= Exp(3.6007)
= $36.62
Bottom border of price channel:
Exp(Y32)
= Exp(a + b × X32 – 2 × s)
= Exp(a + b × 44 – 2 × s)
= Exp(3.6031 + -0.0025 × 44 – 2 × 0.0538)
= Exp(3.3856)
= $29.54
April 29, 2025 calculations
Top border of price channel:
Exp(Y45)
= Exp(a + b × X45 + 2 × s)
= Exp(a + b × 64 + 2 × s)
= Exp(3.6031 + -0.0025 × 64 + 2 × 0.0538)
= Exp(3.5507)
= $34.84
Bottom border of price channel:
Exp(Y45)
= Exp(a + b × X45 – 2 × s)
= Exp(a + b × 64 – 2 × s)
= Exp(3.6031 + -0.0025 × 64 – 2 × 0.0538)
= Exp(3.3356)
= $28.10
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 59.84% per annum.
- SNDK price at the close of April 29, 2025 was inside the secondary price channel.