Intuitive Surgical Inc (ISRG)
Intuitive Surgical, Inc. is an American corporation that develops, manufactures, and markets robotic products designed to improve clinical outcomes of patients through minimally invasive surgery, most notably with the da Vinci Surgical System.
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 44.95% per annum.
- ISRG price at the close of November 19, 2024 was $538.82 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 72.40% per annum.
- ISRG price at the close of November 19, 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 ISRG 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 3, 2022
End date: November 19, 2024
a = 4.3452
b = 0.0010
s = 0.0848
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0010) – 1
= 44.95%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0848) – 1
= 40.37%
June 3, 2022 calculations
Top border of price channel:
Exp(Y638)
= Exp(a + b × X638 + 2 × s)
= Exp(a + b × 926 + 2 × s)
= Exp(4.3452 + 0.0010 × 926 + 2 × 0.0848)
= Exp(5.4565)
= $234.28
Bottom border of price channel:
Exp(Y638)
= Exp(a + b × X638 – 2 × s)
= Exp(a + b × 926 – 2 × s)
= Exp(4.3452 + 0.0010 × 926 – 2 × 0.0848)
= Exp(5.1174)
= $166.90
November 19, 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(4.3452 + 0.0010 × 1,826 + 2 × 0.0848)
= Exp(6.3719)
= $585.16
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(4.3452 + 0.0010 × 1,826 – 2 × 0.0848)
= Exp(6.0327)
= $416.85
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 44.95% per annum.
- ISRG price at the close of November 19, 2024 was $538.82 and was inside the primary price channel.
Secondary Trend
Start date: September 20, 2023
End date: November 19, 2024
a = 3.5596
b = 0.0015
s = 0.0498
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0015) – 1
= 72.40%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0498) – 1
= 22.03%
September 20, 2023 calculations
Top border of price channel:
Exp(Y963)
= Exp(a + b × X963 + 2 × s)
= Exp(a + b × 1,400 + 2 × s)
= Exp(3.5596 + 0.0015 × 1,400 + 2 × 0.0498)
= Exp(5.7483)
= $313.65
Bottom border of price channel:
Exp(Y963)
= Exp(a + b × X963 – 2 × s)
= Exp(a + b × 1,400 – 2 × s)
= Exp(3.5596 + 0.0015 × 1,400 – 2 × 0.0498)
= Exp(5.5492)
= $257.04
November 19, 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(3.5596 + 0.0015 × 1,826 + 2 × 0.0498)
= Exp(6.3840)
= $592.28
Bottom border of price channel:
Exp(Y1,257)
= Exp(a + b × X1,257 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(3.5596 + 0.0015 × 1,826 – 2 × 0.0498)
= Exp(6.1849)
= $485.37
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 72.40% per annum.
- ISRG price at the close of November 19, 2024 was inside the secondary price channel.