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 203.88% per annum.
  • GOOGL price at the close of November 28, 2025 was $320.18 and was inside the primary price channel.
  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 294.67% per annum.
  • GOOGL price at the close of November 28, 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 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: November 28, 2025

a = 0.1257

b = 0.0030

s = 0.0463

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0030) – 1
= 203.88%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0463) – 1
= 20.33%

April 3, 2025 calculations

Top border of price channel:

Exp(Y1,089)
= Exp(a + b × X1,089 + 2 × s)
= Exp(a + b × 1,584 + 2 × s)
= Exp(0.1257 + 0.0030 × 1,584 + 2 × 0.0463)
= Exp(5.0417)
= $154.73

Bottom border of price channel:

Exp(Y1,089)
= Exp(a + b × X1,089 – 2 × s)
= Exp(a + b × 1,584 – 2 × s)
= Exp(0.1257 + 0.0030 × 1,584 – 2 × 0.0463)
= Exp(4.8566)
= $128.59

November 28, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(0.1257 + 0.0030 × 1,823 + 2 × 0.0463)
= Exp(5.7695)
= $320.37

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(0.1257 + 0.0030 × 1,823 – 2 × 0.0463)
= Exp(5.5844)
= $266.23

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 203.88% per annum.
  • GOOGL price at the close of November 28, 2025 was $320.18 and was inside the primary price channel.

Secondary Trend

Start date: June 20, 2025
End date: November 28, 2025

a = -1.1341

b = 0.0038

s = 0.0345

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0038) – 1
= 294.67%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0345) – 1
= 14.78%

June 20, 2025 calculations

Top border of price channel:

Exp(Y1,142)
= Exp(a + b × X1,142 + 2 × s)
= Exp(a + b × 1,662 + 2 × s)
= Exp(-1.1341 + 0.0038 × 1,662 + 2 × 0.0345)
= Exp(5.1861)
= $178.77

Bottom border of price channel:

Exp(Y1,142)
= Exp(a + b × X1,142 – 2 × s)
= Exp(a + b × 1,662 – 2 × s)
= Exp(-1.1341 + 0.0038 × 1,662 – 2 × 0.0345)
= Exp(5.0482)
= $155.75

November 28, 2025 calculations

Top border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(-1.1341 + 0.0038 × 1,823 + 2 × 0.0345)
= Exp(5.7917)
= $327.56

Bottom border of price channel:

Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(-1.1341 + 0.0038 × 1,823 – 2 × 0.0345)
= Exp(5.6538)
= $285.38

Description

  • The secondary trend is increasing.
  • The growth rate of the secondary trend is 294.67% per annum.
  • GOOGL price at the close of November 28, 2025 was inside the secondary price channel.