Robert Half International Inc (RHI)
Robert Half International, or commonly referred as, Robert Half, is a global human resource consulting firm based in Menlo Park, California.
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 11.77% per annum.
- RHI price at the close of March 31, 2025 was $54.55 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 67.52% per annum.
- RHI price at the close of March 31, 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 RHI 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: July 23, 2021
End date: March 31, 2025
a = 4.7245
b = -0.0003
s = 0.1089
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0003) – 1
= -11.77%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1089) – 1
= 54.59%
July 23, 2021 calculations
Top border of price channel:
Exp(Y330)
= Exp(a + b × X330 + 2 × s)
= Exp(a + b × 478 + 2 × s)
= Exp(4.7245 + -0.0003 × 478 + 2 × 0.1089)
= Exp(4.7782)
= $118.89
Bottom border of price channel:
Exp(Y330)
= Exp(a + b × X330 – 2 × s)
= Exp(a + b × 478 – 2 × s)
= Exp(4.7245 + -0.0003 × 478 – 2 × 0.1089)
= Exp(4.3426)
= $76.91
March 31, 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(4.7245 + -0.0003 × 1,825 + 2 × 0.1089)
= Exp(4.3159)
= $74.88
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(4.7245 + -0.0003 × 1,825 – 2 × 0.1089)
= Exp(3.8803)
= $48.44
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 11.77% per annum.
- RHI price at the close of March 31, 2025 was $54.55 and was inside the primary price channel.
Secondary Trend
Start date: November 25, 2024
End date: March 31, 2025
a = 9.5848
b = -0.0031
s = 0.0357
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0031) – 1
= -67.52%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0357) – 1
= 15.36%
November 25, 2024 calculations
Top border of price channel:
Exp(Y1,171)
= Exp(a + b × X1,171 + 2 × s)
= Exp(a + b × 1,699 + 2 × s)
= Exp(9.5848 + -0.0031 × 1,699 + 2 × 0.0357)
= Exp(4.4217)
= $83.23
Bottom border of price channel:
Exp(Y1,171)
= Exp(a + b × X1,171 – 2 × s)
= Exp(a + b × 1,699 – 2 × s)
= Exp(9.5848 + -0.0031 × 1,699 – 2 × 0.0357)
= Exp(4.2788)
= $72.15
March 31, 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(9.5848 + -0.0031 × 1,825 + 2 × 0.0357)
= Exp(4.0335)
= $56.46
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(9.5848 + -0.0031 × 1,825 – 2 × 0.0357)
= Exp(3.8906)
= $48.94
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 67.52% per annum.
- RHI price at the close of March 31, 2025 was inside the secondary price channel.