Exelixis Inc (EXEL)
Exelixis, Inc. is a leading biotechnology firm dedicated to advancing innovative therapies for the treatment of cancer, primarily within the United States. Headquartered in Alameda, California, the company specializes in the discovery and development of novel cancer treatments, with a robust pipeline that underscores its commitment to improving patient outcomes. Exelixis' strategic focus on oncology harnesses cutting-edge research and development to deliver transformative solutions in a competitive landscape, positioning it as a key player in the biopharmaceutical industry.
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 38.89% per annum.
- EXEL price at the close of February 27, 2026 was $44.06 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 21.06% per annum.
- EXEL price at the close of February 27, 2026 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 EXEL 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: September 21, 2022
End date: February 27, 2026
a = 2.1956
b = 0.0009
s = 0.0909
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0009) – 1
= 38.89%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0909) – 1
= 43.86%
September 21, 2022 calculations
Top border of price channel:
Exp(Y394)
= Exp(a + b × X394 + 2 × s)
= Exp(a + b × 569 + 2 × s)
= Exp(2.1956 + 0.0009 × 569 + 2 × 0.0909)
= Exp(2.8896)
= $17.99
Bottom border of price channel:
Exp(Y394)
= Exp(a + b × X394 – 2 × s)
= Exp(a + b × 569 – 2 × s)
= Exp(2.1956 + 0.0009 × 569 – 2 × 0.0909)
= Exp(2.5259)
= $12.50
February 27, 2026 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(2.1956 + 0.0009 × 1,824 + 2 × 0.0909)
= Exp(4.0191)
= $55.65
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(2.1956 + 0.0009 × 1,824 – 2 × 0.0909)
= Exp(3.6554)
= $38.68
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 38.89% per annum.
- EXEL price at the close of February 27, 2026 was $44.06 and was inside the primary price channel.
Secondary Trend
Start date: October 31, 2024
End date: February 27, 2026
a = 2.8378
b = 0.0005
s = 0.0643
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 21.06%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0643) – 1
= 29.35%
October 31, 2024 calculations
Top border of price channel:
Exp(Y925)
= Exp(a + b × X925 + 2 × s)
= Exp(a + b × 1,340 + 2 × s)
= Exp(2.8378 + 0.0005 × 1,340 + 2 × 0.0643)
= Exp(3.6681)
= $39.18
Bottom border of price channel:
Exp(Y925)
= Exp(a + b × X925 – 2 × s)
= Exp(a + b × 1,340 – 2 × s)
= Exp(2.8378 + 0.0005 × 1,340 – 2 × 0.0643)
= Exp(3.4108)
= $30.29
February 27, 2026 calculations
Top border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(2.8378 + 0.0005 × 1,824 + 2 × 0.0643)
= Exp(3.9215)
= $50.48
Bottom border of price channel:
Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(2.8378 + 0.0005 × 1,824 – 2 × 0.0643)
= Exp(3.6642)
= $39.03
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 21.06% per annum.
- EXEL price at the close of February 27, 2026 was inside the secondary price channel.