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 38.16% per annum.
- GOOGL price at the close of August 26, 2025 was $207.14 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 21.05% per annum.
- GOOGL price at the close of August 26, 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: September 13, 2022
End date: February 20, 2025
a = 3.8430
b = 0.0009
s = 0.0694
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0009) – 1
= 38.16%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0694) – 1
= 32.01%
September 13, 2022 calculations
Top border of price channel:
Exp(Y514)
= Exp(a + b × X514 + 2 × s)
= Exp(a + b × 747 + 2 × s)
= Exp(3.8430 + 0.0009 × 747 + 2 × 0.0694)
= Exp(4.6434)
= $103.90
Bottom border of price channel:
Exp(Y514)
= Exp(a + b × X514 – 2 × s)
= Exp(a + b × 747 – 2 × s)
= Exp(3.8430 + 0.0009 × 747 – 2 × 0.0694)
= Exp(4.3658)
= $78.71
February 20, 2025 calculations
Top border of price channel:
Exp(Y1,125)
= Exp(a + b × X1,125 + 2 × s)
= Exp(a + b × 1,638 + 2 × s)
= Exp(3.8430 + 0.0009 × 1,638 + 2 × 0.0694)
= Exp(5.4326)
= $228.74
Bottom border of price channel:
Exp(Y1,125)
= Exp(a + b × X1,125 – 2 × s)
= Exp(a + b × 1,638 – 2 × s)
= Exp(3.8430 + 0.0009 × 1,638 – 2 × 0.0694)
= Exp(5.1549)
= $173.28
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 38.16% per annum.
- GOOGL price at the close of August 26, 2025 was $207.14 and was inside the primary price channel.
Secondary Trend
Start date: May 11, 2023
End date: August 26, 2025
a = 4.3121
b = 0.0005
s = 0.0788
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 21.05%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0788) – 1
= 37.06%
May 11, 2023 calculations
Top border of price channel:
Exp(Y680)
= Exp(a + b × X680 + 2 × s)
= Exp(a + b × 987 + 2 × s)
= Exp(4.3121 + 0.0005 × 987 + 2 × 0.0788)
= Exp(4.9863)
= $146.39
Bottom border of price channel:
Exp(Y680)
= Exp(a + b × X680 – 2 × s)
= Exp(a + b × 987 – 2 × s)
= Exp(4.3121 + 0.0005 × 987 – 2 × 0.0788)
= Exp(4.6710)
= $106.81
August 26, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(4.3121 + 0.0005 × 1,825 + 2 × 0.0788)
= Exp(5.4249)
= $226.99
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(4.3121 + 0.0005 × 1,825 – 2 × 0.0788)
= Exp(5.1096)
= $165.61
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 21.05% per annum.
- GOOGL price at the close of August 26, 2025 was inside the secondary price channel.