Stock Price Trends

Alphabet Inc Class A (GOOGL) 

Alphabet Inc. is an American multinational conglomerate headquartered in Mountain View, California. It was created through a restructuring of Google on October 2, 2015, and became the parent company of Google and several former Google subsidiaries. The two co-founders of Google remained as controlling shareholders, board members, and employees at Alphabet. Alphabet is the world's fourth-largest technology company by revenue and one of the world's most valuable companies.

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 204.64% per annum.
  • GOOGL price at the close of January 14, 2026 was $335.84 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 21.51% per annum.
  • GOOGL price at the close of January 14, 2026 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 GOOGL 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: April 3, 2025
End date: January 14, 2026

a = 0.2514

b = 0.0031

s = 0.0449

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0031) – 1
= 204.64%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0449) – 1
= 19.69%

April 3, 2025 calculations

Top border of price channel:

Exp(Y1,058)
= Exp(a + b × X1,058 + 2 × s)
= Exp(a + b × 1,539 + 2 × s)
= Exp(0.2514 + 0.0031 × 1,539 + 2 × 0.0449)
= Exp(5.0382)
= $154.20

Bottom border of price channel:

Exp(Y1,058)
= Exp(a + b × X1,058 – 2 × s)
= Exp(a + b × 1,539 – 2 × s)
= Exp(0.2514 + 0.0031 × 1,539 – 2 × 0.0449)
= Exp(4.8585)
= $128.83

January 14, 2026 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(0.2514 + 0.0031 × 1,825 + 2 × 0.0449)
= Exp(5.9111)
= $369.11

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(0.2514 + 0.0031 × 1,825 – 2 × 0.0449)
= Exp(5.7314)
= $308.40

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 204.64% per annum.
  • GOOGL price at the close of January 14, 2026 was $335.84 and was inside the primary price channel.

Secondary Trend

Start date: November 24, 2025
End date: January 14, 2026

a = 4.7970

b = 0.0005

s = 0.0254

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 21.51%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0254) – 1
= 10.68%

November 24, 2025 calculations

Top border of price channel:

Exp(Y1,220)
= Exp(a + b × X1,220 + 2 × s)
= Exp(a + b × 1,774 + 2 × s)
= Exp(4.7970 + 0.0005 × 1,774 + 2 × 0.0254)
= Exp(5.7946)
= $328.52

Bottom border of price channel:

Exp(Y1,220)
= Exp(a + b × X1,220 – 2 × s)
= Exp(a + b × 1,774 – 2 × s)
= Exp(4.7970 + 0.0005 × 1,774 – 2 × 0.0254)
= Exp(5.6931)
= $296.81

January 14, 2026 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(4.7970 + 0.0005 × 1,825 + 2 × 0.0254)
= Exp(5.8218)
= $337.58

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(4.7970 + 0.0005 × 1,825 – 2 × 0.0254)
= Exp(5.7203)
= $305.01

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 21.51% per annum.
  • GOOGL price at the close of January 14, 2026 was inside the secondary price channel.