Stock Price Trends

Biomarin Pharmaceutical Inc (BMRN)

BioMarin Pharmaceutical Inc. develops and markets therapies for people with rare diseases and serious and life-threatening medical conditions. The company is headquartered in San Rafael, 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 13.17% per annum.
  • BMRN price at the close of September 6, 2024 was $84.08 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 74.72% per annum.
  • BMRN price at the close of September 6, 2024 was lower than the bottom border of the secondary price channel by $2.75 (3.16%). This indicates a possible reversal in the secondary trend direction.
  • The direction of the secondary trend is opposite to the direction of the primary trend. This indicates a possible reversal in the direction of the primary trend.

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 BMRN 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: November 23, 2022
End date: August 5, 2024

a = 5.0869

b = -0.0004

s = 0.0588

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0004) – 1
= -13.17%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0588) – 1
= 26.54%

November 23, 2022 calculations

Top border of price channel:

Exp(Y810)
= Exp(a + b × X810 + 2 × s)
= Exp(a + b × 1,171 + 2 × s)
= Exp(5.0869 + -0.0004 × 1,171 + 2 × 0.0588)
= Exp(4.7514)
= $115.74

Bottom border of price channel:

Exp(Y810)
= Exp(a + b × X810 – 2 × s)
= Exp(a + b × 1,171 – 2 × s)
= Exp(5.0869 + -0.0004 × 1,171 – 2 × 0.0588)
= Exp(4.5160)
= $91.47

August 5, 2024 calculations

Top border of price channel:

Exp(Y1,234)
= Exp(a + b × X1,234 + 2 × s)
= Exp(a + b × 1,792 + 2 × s)
= Exp(5.0869 + -0.0004 × 1,792 + 2 × 0.0588)
= Exp(4.5110)
= $91.01

Bottom border of price channel:

Exp(Y1,234)
= Exp(a + b × X1,234 – 2 × s)
= Exp(a + b × 1,792 – 2 × s)
= Exp(5.0869 + -0.0004 × 1,792 – 2 × 0.0588)
= Exp(4.2756)
= $71.93

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 13.17% per annum.
  • BMRN price at the close of September 6, 2024 was $84.08 and was inside the primary price channel.

Secondary Trend

Start date: May 14, 2024
End date: September 4, 2024

a = 1.7305

b = 0.0015

s = 0.0276

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0015) – 1
= 74.72%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0276) – 1
= 11.68%

May 14, 2024 calculations

Top border of price channel:

Exp(Y1,178)
= Exp(a + b × X1,178 + 2 × s)
= Exp(a + b × 1,709 + 2 × s)
= Exp(1.7305 + 0.0015 × 1,709 + 2 × 0.0276)
= Exp(4.3986)
= $81.34

Bottom border of price channel:

Exp(Y1,178)
= Exp(a + b × X1,178 – 2 × s)
= Exp(a + b × 1,709 – 2 × s)
= Exp(1.7305 + 0.0015 × 1,709 – 2 × 0.0276)
= Exp(4.2881)
= $72.83

September 4, 2024 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,822 + 2 × s)
= Exp(1.7305 + 0.0015 × 1,822 + 2 × 0.0276)
= Exp(4.5714)
= $96.68

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,822 – 2 × s)
= Exp(1.7305 + 0.0015 × 1,822 – 2 × 0.0276)
= Exp(4.4609)
= $86.56

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 74.72% per annum.
  • BMRN price at the close of September 6, 2024 was lower than the bottom border of the secondary price channel by $2.75 (3.16%). This indicates a possible reversal in the secondary trend direction.