Halozyme Therapeutics Inc (HALO)
Halozyme Therapeutics, Inc. is a biopharmaceutical technology platform company in the United States, Switzerland, Ireland, Belgium, Japan, and internationally. The company is headquartered in San Diego, California.
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 583.25% per annum.
- HALO price at the close of September 11, 2025 was $77.53 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 224.63% per annum.
- HALO price at the close of September 11, 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 HALO 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: June 25, 2025
End date: September 11, 2025
a = -5.2553
b = 0.0053
s = 0.0257
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0053) – 1
= 583.25%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0257) – 1
= 10.84%
June 25, 2025 calculations
Top border of price channel:
Exp(Y1,200)
= Exp(a + b × X1,200 + 2 × s)
= Exp(a + b × 1,745 + 2 × s)
= Exp(-5.2553 + 0.0053 × 1,745 + 2 × 0.0257)
= Exp(3.9835)
= $53.70
Bottom border of price channel:
Exp(Y1,200)
= Exp(a + b × X1,200 – 2 × s)
= Exp(a + b × 1,745 – 2 × s)
= Exp(-5.2553 + 0.0053 × 1,745 – 2 × 0.0257)
= Exp(3.8805)
= $48.45
September 11, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(-5.2553 + 0.0053 × 1,823 + 2 × 0.0257)
= Exp(4.3941)
= $80.98
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(-5.2553 + 0.0053 × 1,823 – 2 × 0.0257)
= Exp(4.2912)
= $73.05
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 583.25% per annum.
- HALO price at the close of September 11, 2025 was $77.53 and was inside the primary price channel.
Secondary Trend
Start date: August 20, 2025
End date: September 11, 2025
a = -1.5451
b = 0.0032
s = 0.0076
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0032) – 1
= 224.63%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0076) – 1
= 3.07%
August 20, 2025 calculations
Top border of price channel:
Exp(Y1,239)
= Exp(a + b × X1,239 + 2 × s)
= Exp(a + b × 1,801 + 2 × s)
= Exp(-1.5451 + 0.0032 × 1,801 + 2 × 0.0076)
= Exp(4.2801)
= $72.25
Bottom border of price channel:
Exp(Y1,239)
= Exp(a + b × X1,239 – 2 × s)
= Exp(a + b × 1,801 – 2 × s)
= Exp(-1.5451 + 0.0032 × 1,801 – 2 × 0.0076)
= Exp(4.2499)
= $70.09
September 11, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(-1.5451 + 0.0032 × 1,823 + 2 × 0.0076)
= Exp(4.3511)
= $77.56
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(-1.5451 + 0.0032 × 1,823 – 2 × 0.0076)
= Exp(4.3208)
= $75.25
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 224.63% per annum.
- HALO price at the close of September 11, 2025 was inside the secondary price channel.