Arrowhead Pharmaceuticals Inc (ARWR)
Arrowhead Pharmaceuticals Inc. is a clinical-stage biopharmaceutical company headquartered in Pasadena, California, focused on developing innovative therapies for the treatment of intractable diseases through its proprietary RNA interference (RNAi) technology. The company's lead programs target serious health conditions, including liver diseases and other genetic disorders, positioning Arrowhead at the forefront of the growing field of gene silencing and targeted therapeutics. With a robust pipeline and strategic partnerships, Arrowhead is committed to advancing its drug candidates through clinical trials, aiming to address unmet medical needs and deliver transformative treatments to patients worldwide.
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 1,070.32% per annum.
- ARWR price at the close of January 16, 2026 was $63.84 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 39.99% per annum.
- ARWR price at the close of January 16, 2026 was inside the secondary price channel.
- 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 ARWR 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: April 3, 2025
End date: January 16, 2026
a = -8.0635
b = 0.0067
s = 0.1466
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0067) – 1
= 1,070.32%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.1466) – 1
= 79.74%
April 3, 2025 calculations
Top border of price channel:
Exp(Y1,057)
= Exp(a + b × X1,057 + 2 × s)
= Exp(a + b × 1,535 + 2 × s)
= Exp(-8.0635 + 0.0067 × 1,535 + 2 × 0.1466)
= Exp(2.5746)
= $13.13
Bottom border of price channel:
Exp(Y1,057)
= Exp(a + b × X1,057 – 2 × s)
= Exp(a + b × 1,535 – 2 × s)
= Exp(-8.0635 + 0.0067 × 1,535 – 2 × 0.1466)
= Exp(1.9882)
= $7.30
January 16, 2026 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(-8.0635 + 0.0067 × 1,823 + 2 × 0.1466)
= Exp(4.5155)
= $91.42
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(-8.0635 + 0.0067 × 1,823 – 2 × 0.1466)
= Exp(3.9291)
= $50.86
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 1,070.32% per annum.
- ARWR price at the close of January 16, 2026 was $63.84 and was inside the primary price channel.
Secondary Trend
Start date: December 8, 2025
End date: January 16, 2026
a = 6.7336
b = -0.0014
s = 0.0284
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0014) – 1
= -39.99%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0284) – 1
= 12.04%
December 8, 2025 calculations
Top border of price channel:
Exp(Y1,228)
= Exp(a + b × X1,228 + 2 × s)
= Exp(a + b × 1,784 + 2 × s)
= Exp(6.7336 + -0.0014 × 1,784 + 2 × 0.0284)
= Exp(4.2942)
= $73.27
Bottom border of price channel:
Exp(Y1,228)
= Exp(a + b × X1,228 – 2 × s)
= Exp(a + b × 1,784 – 2 × s)
= Exp(6.7336 + -0.0014 × 1,784 – 2 × 0.0284)
= Exp(4.1805)
= $65.40
January 16, 2026 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(6.7336 + -0.0014 × 1,823 + 2 × 0.0284)
= Exp(4.2396)
= $69.38
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(6.7336 + -0.0014 × 1,823 – 2 × 0.0284)
= Exp(4.1260)
= $61.93
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 39.99% per annum.
- ARWR price at the close of January 16, 2026 was inside the secondary price channel.