Stock Price Trends

DaVita HealthCare Partners Inc (DVA)

DaVita Inc. provides kidney dialysis services through a network of outpatient dialysis centers in the United States.

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 49.05% per annum.
  • DVA price at the close of July 25, 2024 was $142.50 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 114.47% per annum.
  • DVA price at the close of July 25, 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 DVA 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: October 28, 2022
End date: July 25, 2024

a = 2.9546

b = 0.0011

s = 0.0927

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0011) – 1
= 49.05%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0927) – 1
= 44.92%

October 28, 2022 calculations

Top border of price channel:

Exp(Y822)
= Exp(a + b × X822 + 2 × s)
= Exp(a + b × 1,190 + 2 × s)
= Exp(2.9546 + 0.0011 × 1,190 + 2 × 0.0927)
= Exp(4.4412)
= $84.88

Bottom border of price channel:

Exp(Y822)
= Exp(a + b × X822 – 2 × s)
= Exp(a + b × 1,190 – 2 × s)
= Exp(2.9546 + 0.0011 × 1,190 – 2 × 0.0927)
= Exp(4.0703)
= $58.57

July 25, 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(2.9546 + 0.0011 × 1,826 + 2 × 0.0927)
= Exp(5.1366)
= $170.14

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(2.9546 + 0.0011 × 1,826 – 2 × 0.0927)
= Exp(4.7657)
= $117.41

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 49.05% per annum.
  • DVA price at the close of July 25, 2024 was $142.50 and was inside the primary price channel.

Secondary Trend

Start date: October 5, 2023
End date: July 25, 2024

a = 1.2514

b = 0.0021

s = 0.0775

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0021) – 1
= 114.47%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0775) – 1
= 36.36%

October 5, 2023 calculations

Top border of price channel:

Exp(Y1,056)
= Exp(a + b × X1,056 + 2 × s)
= Exp(a + b × 1,532 + 2 × s)
= Exp(1.2514 + 0.0021 × 1,532 + 2 × 0.0775)
= Exp(4.6090)
= $100.39

Bottom border of price channel:

Exp(Y1,056)
= Exp(a + b × X1,056 – 2 × s)
= Exp(a + b × 1,532 – 2 × s)
= Exp(1.2514 + 0.0021 × 1,532 – 2 × 0.0775)
= Exp(4.2989)
= $73.62

July 25, 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(1.2514 + 0.0021 × 1,826 + 2 × 0.0775)
= Exp(5.2236)
= $185.60

Bottom border of price channel:

Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(1.2514 + 0.0021 × 1,826 – 2 × 0.0775)
= Exp(4.9135)
= $136.12

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 114.47% per annum.
  • DVA price at the close of July 25, 2024 was inside the secondary price channel.