Stock Price Trends

Impinj Inc (PI)

Impinj, Inc. operates a cloud connectivity platform. The company is headquartered in Seattle, Washington.

Stock Price Trends

Stock price trends estimated using linear regression.

Key facts

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 84.43% per annum.
  • PI price at the close of February 3, 2025 was $122.41 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 69.76% per annum.
  • PI price at the close of February 3, 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 PI 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: October 4, 2024
End date: February 3, 2025

a = 14.1373

b = -0.0051

s = 0.0518

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0051) – 1
= -84.43%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0518) – 1
= 23.00%

October 4, 2024 calculations

Top border of price channel:

Exp(Y1,175)
= Exp(a + b × X1,175 + 2 × s)
= Exp(a + b × 1,704 + 2 × s)
= Exp(14.1373 + -0.0051 × 1,704 + 2 × 0.0518)
= Exp(5.5579)
= $259.27

Bottom border of price channel:

Exp(Y1,175)
= Exp(a + b × X1,175 – 2 × s)
= Exp(a + b × 1,704 – 2 × s)
= Exp(14.1373 + -0.0051 × 1,704 – 2 × 0.0518)
= Exp(5.3509)
= $210.79

February 3, 2025 calculations

Top border of price channel:

Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(14.1373 + -0.0051 × 1,826 + 2 × 0.0518)
= Exp(4.9362)
= $139.24

Bottom border of price channel:

Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(14.1373 + -0.0051 × 1,826 – 2 × 0.0518)
= Exp(4.7292)
= $113.20

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 84.43% per annum.
  • PI price at the close of February 3, 2025 was $122.41 and was inside the primary price channel.

Secondary Trend

Start date: December 9, 2024
End date: February 3, 2025

a = 10.8544

b = -0.0033

s = 0.0359

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0033) – 1
= -69.76%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0359) – 1
= 15.43%

December 9, 2024 calculations

Top border of price channel:

Exp(Y1,220)
= Exp(a + b × X1,220 + 2 × s)
= Exp(a + b × 1,770 + 2 × s)
= Exp(10.8544 + -0.0033 × 1,770 + 2 × 0.0359)
= Exp(5.1260)
= $168.34

Bottom border of price channel:

Exp(Y1,220)
= Exp(a + b × X1,220 – 2 × s)
= Exp(a + b × 1,770 – 2 × s)
= Exp(10.8544 + -0.0033 × 1,770 – 2 × 0.0359)
= Exp(4.9825)
= $145.83

February 3, 2025 calculations

Top border of price channel:

Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(10.8544 + -0.0033 × 1,826 + 2 × 0.0359)
= Exp(4.9425)
= $140.12

Bottom border of price channel:

Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(10.8544 + -0.0033 × 1,826 – 2 × 0.0359)
= Exp(4.7990)
= $121.38

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 69.76% per annum.
  • PI price at the close of February 3, 2025 was inside the secondary price channel.