Stock Price Trends

The Gap, Inc. (GAP)

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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 59.35% per annum.
  • GAP price at the close of April 28, 2025 was $21.47 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 6.37% per annum.
  • GAP 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 GAP 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 20, 2022
End date: March 3, 2025

a = 1.0303

b = 0.0013

s = 0.2110

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0013) – 1
= 59.35%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.2110) – 1
= 132.56%

May 20, 2022 calculations

Top border of price channel:

Exp(Y520)
= Exp(a + b × X520 + 2 × s)
= Exp(a + b × 751 + 2 × s)
= Exp(1.0303 + 0.0013 × 751 + 2 × 0.2110)
= Exp(2.4110)
= $11.14

Bottom border of price channel:

Exp(Y520)
= Exp(a + b × X520 – 2 × s)
= Exp(a + b × 751 – 2 × s)
= Exp(1.0303 + 0.0013 × 751 – 2 × 0.2110)
= Exp(1.5670)
= $4.79

March 3, 2025 calculations

Top border of price channel:

Exp(Y1,216)
= Exp(a + b × X1,216 + 2 × s)
= Exp(a + b × 1,769 + 2 × s)
= Exp(1.0303 + 0.0013 × 1,769 + 2 × 0.2110)
= Exp(3.7105)
= $40.87

Bottom border of price channel:

Exp(Y1,216)
= Exp(a + b × X1,216 – 2 × s)
= Exp(a + b × 1,769 – 2 × s)
= Exp(1.0303 + 0.0013 × 1,769 – 2 × 0.2110)
= Exp(2.8665)
= $17.58

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 59.35% per annum.
  • GAP price at the close of April 28, 2025 was $21.47 and was inside the primary price channel.

Secondary Trend

Start date: March 11, 2024
End date: April 28, 2025

a = 3.3876

b = -0.0002

s = 0.0856

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0002) – 1
= -6.37%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0856) – 1
= 40.81%

March 11, 2024 calculations

Top border of price channel:

Exp(Y972)
= Exp(a + b × X972 + 2 × s)
= Exp(a + b × 1,412 + 2 × s)
= Exp(3.3876 + -0.0002 × 1,412 + 2 × 0.0856)
= Exp(3.3043)
= $27.23

Bottom border of price channel:

Exp(Y972)
= Exp(a + b × X972 – 2 × s)
= Exp(a + b × 1,412 – 2 × s)
= Exp(3.3876 + -0.0002 × 1,412 – 2 × 0.0856)
= Exp(2.9621)
= $19.34

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(3.3876 + -0.0002 × 1,825 + 2 × 0.0856)
= Exp(3.2299)
= $25.28

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(3.3876 + -0.0002 × 1,825 – 2 × 0.0856)
= Exp(2.8876)
= $17.95

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 6.37% per annum.
  • GAP price at the close of April 28, 2025 was inside the secondary price channel.