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 89.47% per annum.
  • PI price at the close of April 28, 2025 was $90.84 and was higher than the top border of the primary price channel by $11.15 (13.99%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 141,411.68% per annum.
  • PI price at the close of April 28, 2025 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 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: April 23, 2025

a = 15.4905

b = -0.0062

s = 0.0715

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0062) – 1
= -89.47%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0715) – 1
= 33.12%

October 4, 2024 calculations

Top border of price channel:

Exp(Y1,116)
= Exp(a + b × X1,116 + 2 × s)
= Exp(a + b × 1,619 + 2 × s)
= Exp(15.4905 + -0.0062 × 1,619 + 2 × 0.0715)
= Exp(5.6486)
= $283.90

Bottom border of price channel:

Exp(Y1,116)
= Exp(a + b × X1,116 – 2 × s)
= Exp(a + b × 1,619 – 2 × s)
= Exp(15.4905 + -0.0062 × 1,619 – 2 × 0.0715)
= Exp(5.3626)
= $213.27

April 23, 2025 calculations

Top border of price channel:

Exp(Y1,252)
= Exp(a + b × X1,252 + 2 × s)
= Exp(a + b × 1,820 + 2 × s)
= Exp(15.4905 + -0.0062 × 1,820 + 2 × 0.0715)
= Exp(4.4090)
= $82.19

Bottom border of price channel:

Exp(Y1,252)
= Exp(a + b × X1,252 – 2 × s)
= Exp(a + b × 1,820 – 2 × s)
= Exp(15.4905 + -0.0062 × 1,820 – 2 × 0.0715)
= Exp(4.1229)
= $61.74

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 89.47% per annum.
  • PI price at the close of April 28, 2025 was $90.84 and was higher than the top border of the primary price channel by $11.15 (13.99%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: April 10, 2025
End date: April 28, 2025

a = -31.7890

b = 0.0199

s = 0.0671

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0199) – 1
= 141,411.68%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0671) – 1
= 30.80%

April 10, 2025 calculations

Top border of price channel:

Exp(Y1,244)
= Exp(a + b × X1,244 + 2 × s)
= Exp(a + b × 1,807 + 2 × s)
= Exp(-31.7890 + 0.0199 × 1,807 + 2 × 0.0671)
= Exp(4.2623)
= $70.97

Bottom border of price channel:

Exp(Y1,244)
= Exp(a + b × X1,244 – 2 × s)
= Exp(a + b × 1,807 – 2 × s)
= Exp(-31.7890 + 0.0199 × 1,807 – 2 × 0.0671)
= Exp(3.9938)
= $54.26

April 28, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(-31.7890 + 0.0199 × 1,825 + 2 × 0.0671)
= Exp(4.6201)
= $101.50

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(-31.7890 + 0.0199 × 1,825 – 2 × 0.0671)
= Exp(4.3516)
= $77.60

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 141,411.68% per annum.
  • PI price at the close of April 28, 2025 was inside the secondary price channel.