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 38.62% per annum.
- ISRG price at the close of May 1, 2024 was $371.70 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 43.20% per annum.
- ISRG price at the close of May 1, 2024 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 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: May 9, 2022
End date: May 1, 2024
a = 4.3159
b = 0.0009
s = 0.0905
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0009) – 1
= 38.62%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0905) – 1
= 43.63%
May 9, 2022 calculations
Top border of price channel:
Exp(Y761)
= Exp(a + b × X761 + 2 × s)
= Exp(a + b × 1,103 + 2 × s)
= Exp(4.3159 + 0.0009 × 1,103 + 2 × 0.0905)
= Exp(5.4837)
= $240.73
Bottom border of price channel:
Exp(Y761)
= Exp(a + b × X761 – 2 × s)
= Exp(a + b × 1,103 – 2 × s)
= Exp(4.3159 + 0.0009 × 1,103 – 2 × 0.0905)
= Exp(5.1217)
= $167.61
May 1, 2024 calculations
Top border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(4.3159 + 0.0009 × 1,826 + 2 × 0.0905)
= Exp(6.1305)
= $459.68
Bottom border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(4.3159 + 0.0009 × 1,826 – 2 × 0.0905)
= Exp(5.7685)
= $320.05
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 38.62% per annum.
- ISRG price at the close of May 1, 2024 was $371.70 and was inside the primary price channel.
Secondary Trend
Start date: March 15, 2024
End date: May 1, 2024
a = 8.7450
b = -0.0015
s = 0.0138
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0015) – 1
= -43.20%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0138) – 1
= 5.67%
March 15, 2024 calculations
Top border of price channel:
Exp(Y1,226)
= Exp(a + b × X1,226 + 2 × s)
= Exp(a + b × 1,779 + 2 × s)
= Exp(8.7450 + -0.0015 × 1,779 + 2 × 0.0138)
= Exp(6.0153)
= $409.65
Bottom border of price channel:
Exp(Y1,226)
= Exp(a + b × X1,226 – 2 × s)
= Exp(a + b × 1,779 – 2 × s)
= Exp(8.7450 + -0.0015 × 1,779 – 2 × 0.0138)
= Exp(5.9602)
= $387.68
May 1, 2024 calculations
Top border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(8.7450 + -0.0015 × 1,826 + 2 × 0.0138)
= Exp(5.9425)
= $380.87
Bottom border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(8.7450 + -0.0015 × 1,826 – 2 × 0.0138)
= Exp(5.8873)
= $360.45
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 43.20% per annum.
- ISRG price at the close of May 1, 2024 was inside the secondary price channel.