Core Laboratories NV (CLB)
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 31.60% per annum.
- CLB price at the close of April 1, 2025 was $14.98 and was higher than the top border of the primary price channel by $4.50 (42.92%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 11.39% per annum.
- CLB price at the close of April 1, 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 CLB 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: January 5, 2021
End date: January 5, 2023
a = 3.9242
b = -0.0010
s = 0.1622
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0010) – 1
= -31.60%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1622) – 1
= 91.33%
January 5, 2021 calculations
Top border of price channel:
Exp(Y191)
= Exp(a + b × X191 + 2 × s)
= Exp(a + b × 278 + 2 × s)
= Exp(3.9242 + -0.0010 × 278 + 2 × 0.1622)
= Exp(3.9594)
= $52.42
Bottom border of price channel:
Exp(Y191)
= Exp(a + b × X191 – 2 × s)
= Exp(a + b × 278 – 2 × s)
= Exp(3.9242 + -0.0010 × 278 – 2 × 0.1622)
= Exp(3.3105)
= $27.40
January 5, 2023 calculations
Top border of price channel:
Exp(Y695)
= Exp(a + b × X695 + 2 × s)
= Exp(a + b × 1,008 + 2 × s)
= Exp(3.9242 + -0.0010 × 1,008 + 2 × 0.1622)
= Exp(3.1998)
= $24.53
Bottom border of price channel:
Exp(Y695)
= Exp(a + b × X695 – 2 × s)
= Exp(a + b × 1,008 – 2 × s)
= Exp(3.9242 + -0.0010 × 1,008 – 2 × 0.1622)
= Exp(2.5509)
= $12.82
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 31.60% per annum.
- CLB price at the close of April 1, 2025 was $14.98 and was higher than the top border of the primary price channel by $4.50 (42.92%). This indicates a possible reversal in the primary trend direction.
Secondary Trend
Start date: August 4, 2021
End date: April 1, 2025
a = 3.4265
b = -0.0003
s = 0.1605
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0003) – 1
= -11.39%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1605) – 1
= 90.02%
August 4, 2021 calculations
Top border of price channel:
Exp(Y337)
= Exp(a + b × X337 + 2 × s)
= Exp(a + b × 489 + 2 × s)
= Exp(3.4265 + -0.0003 × 489 + 2 × 0.1605)
= Exp(3.5855)
= $36.07
Bottom border of price channel:
Exp(Y337)
= Exp(a + b × X337 – 2 × s)
= Exp(a + b × 489 – 2 × s)
= Exp(3.4265 + -0.0003 × 489 – 2 × 0.1605)
= Exp(2.9436)
= $18.98
April 1, 2025 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(3.4265 + -0.0003 × 1,825 + 2 × 0.1605)
= Exp(3.1429)
= $23.17
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(3.4265 + -0.0003 × 1,825 – 2 × 0.1605)
= Exp(2.5010)
= $12.19
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 11.39% per annum.
- CLB price at the close of April 1, 2025 was inside the secondary price channel.