Alphabet Inc Class C (GOOG)
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 38.44% per annum.
- GOOG price at the close of September 17, 2025 was $249.85 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 21.17% per annum.
- GOOG price at the close of September 17, 2025 was higher than the top border of the secondary price channel by $18.38 (7.94%).
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 GOOG 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 = 3.8628
b = 0.0009
s = 0.0696
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0009) – 1
= 38.44%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0696) – 1
= 32.10%
September 13, 2022 calculations
Top border of price channel:
Exp(Y499)
= Exp(a + b × X499 + 2 × s)
= Exp(a + b × 725 + 2 × s)
= Exp(3.8628 + 0.0009 × 725 + 2 × 0.0696)
= Exp(4.6480)
= $104.38
Bottom border of price channel:
Exp(Y499)
= Exp(a + b × X499 – 2 × s)
= Exp(a + b × 725 – 2 × s)
= Exp(3.8628 + 0.0009 × 725 – 2 × 0.0696)
= Exp(4.3696)
= $79.01
February 20, 2025 calculations
Top border of price channel:
Exp(Y1,110)
= Exp(a + b × X1,110 + 2 × s)
= Exp(a + b × 1,616 + 2 × s)
= Exp(3.8628 + 0.0009 × 1,616 + 2 × 0.0696)
= Exp(5.4420)
= $230.90
Bottom border of price channel:
Exp(Y1,110)
= Exp(a + b × X1,110 – 2 × s)
= Exp(a + b × 1,616 – 2 × s)
= Exp(3.8628 + 0.0009 × 1,616 – 2 × 0.0696)
= Exp(5.1636)
= $174.79
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 38.44% per annum.
- GOOG price at the close of September 17, 2025 was $249.85 and was inside the primary price channel.
Secondary Trend
Start date: May 11, 2023
End date: August 27, 2025
a = 4.3275
b = 0.0005
s = 0.0785
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 21.17%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0785) – 1
= 36.89%
May 11, 2023 calculations
Top border of price channel:
Exp(Y665)
= Exp(a + b × X665 + 2 × s)
= Exp(a + b × 965 + 2 × s)
= Exp(4.3275 + 0.0005 × 965 + 2 × 0.0785)
= Exp(4.9921)
= $147.25
Bottom border of price channel:
Exp(Y665)
= Exp(a + b × X665 – 2 × s)
= Exp(a + b × 965 – 2 × s)
= Exp(4.3275 + 0.0005 × 965 – 2 × 0.0785)
= Exp(4.6781)
= $107.57
August 27, 2025 calculations
Top border of price channel:
Exp(Y1,240)
= Exp(a + b × X1,240 + 2 × s)
= Exp(a + b × 1,804 + 2 × s)
= Exp(4.3275 + 0.0005 × 1,804 + 2 × 0.0785)
= Exp(5.4334)
= $228.93
Bottom border of price channel:
Exp(Y1,240)
= Exp(a + b × X1,240 – 2 × s)
= Exp(a + b × 1,804 – 2 × s)
= Exp(4.3275 + 0.0005 × 1,804 – 2 × 0.0785)
= Exp(5.1194)
= $167.24
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 21.17% per annum.
- GOOG price at the close of September 17, 2025 was higher than the top border of the secondary price channel by $18.38 (7.94%).