Stock Price Trends

GameStop Corp (GME)

GameStop Corp. The company is headquartered in Grapevine, Texas.

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 36.10% per annum.
  • GME price at the close of April 28, 2025 was $27.59 and was higher than the top border of the primary price channel by $15.72 (132.34%). This indicates a possible reversal in the primary trend direction.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 66.61% per annum.
  • GME 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 GME 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: March 1, 2021
End date: May 8, 2024

a = 4.3602

b = -0.0012

s = 0.1768

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0012) – 1
= -36.10%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.1768) – 1
= 102.83%

March 1, 2021 calculations

Top border of price channel:

Exp(Y210)
= Exp(a + b × X210 + 2 × s)
= Exp(a + b × 306 + 2 × s)
= Exp(4.3602 + -0.0012 × 306 + 2 × 0.1768)
= Exp(4.3383)
= $76.58

Bottom border of price channel:

Exp(Y210)
= Exp(a + b × X210 – 2 × s)
= Exp(a + b × 306 – 2 × s)
= Exp(4.3602 + -0.0012 × 306 – 2 × 0.1768)
= Exp(3.6312)
= $37.76

May 8, 2024 calculations

Top border of price channel:

Exp(Y1,013)
= Exp(a + b × X1,013 + 2 × s)
= Exp(a + b × 1,470 + 2 × s)
= Exp(4.3602 + -0.0012 × 1,470 + 2 × 0.1768)
= Exp(2.9100)
= $18.36

Bottom border of price channel:

Exp(Y1,013)
= Exp(a + b × X1,013 – 2 × s)
= Exp(a + b × 1,470 – 2 × s)
= Exp(4.3602 + -0.0012 × 1,470 – 2 × 0.1768)
= Exp(2.2029)
= $9.05

Description

  • The primary trend is decreasing.
  • The decline rate of the primary trend is 36.10% per annum.
  • GME price at the close of April 28, 2025 was $27.59 and was higher than the top border of the primary price channel by $15.72 (132.34%). This indicates a possible reversal in the primary trend direction.

Secondary Trend

Start date: September 21, 2023
End date: April 28, 2025

a = 0.8450

b = 0.0014

s = 0.2062

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0014) – 1
= 66.61%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.2062) – 1
= 128.13%

September 21, 2023 calculations

Top border of price channel:

Exp(Y855)
= Exp(a + b × X855 + 2 × s)
= Exp(a + b × 1,240 + 2 × s)
= Exp(0.8450 + 0.0014 × 1,240 + 2 × 0.2062)
= Exp(2.9917)
= $19.92

Bottom border of price channel:

Exp(Y855)
= Exp(a + b × X855 – 2 × s)
= Exp(a + b × 1,240 – 2 × s)
= Exp(0.8450 + 0.0014 × 1,240 – 2 × 0.2062)
= Exp(2.1669)
= $8.73

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(0.8450 + 0.0014 × 1,825 + 2 × 0.2062)
= Exp(3.8099)
= $45.15

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(0.8450 + 0.0014 × 1,825 – 2 × 0.2062)
= Exp(2.9852)
= $19.79

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 66.61% per annum.
  • GME price at the close of April 28, 2025 was inside the secondary price channel.