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 210.27% per annum.
- GOOGL price at the close of December 17, 2025 was $296.72 and was inside the primary price channel.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 55.99% per annum.
- GOOGL price at the close of December 17, 2025 was lower than the bottom border of the secondary price channel by $1.70 (0.57%).
- 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 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: December 17, 2025
a = 0.0828
b = 0.0031
s = 0.0464
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0031) – 1
= 210.27%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0464) – 1
= 20.39%
April 3, 2025 calculations
Top border of price channel:
Exp(Y1,076)
= Exp(a + b × X1,076 + 2 × s)
= Exp(a + b × 1,567 + 2 × s)
= Exp(0.0828 + 0.0031 × 1,567 + 2 × 0.0464)
= Exp(5.0366)
= $153.95
Bottom border of price channel:
Exp(Y1,076)
= Exp(a + b × X1,076 – 2 × s)
= Exp(a + b × 1,567 – 2 × s)
= Exp(0.0828 + 0.0031 × 1,567 – 2 × 0.0464)
= Exp(4.8510)
= $127.87
December 17, 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(0.0828 + 0.0031 × 1,825 + 2 × 0.0464)
= Exp(5.8370)
= $342.73
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(0.0828 + 0.0031 × 1,825 – 2 × 0.0464)
= Exp(5.6514)
= $284.69
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 210.27% per annum.
- GOOGL price at the close of December 17, 2025 was $296.72 and was inside the primary price channel.
Secondary Trend
Start date: November 24, 2025
End date: December 17, 2025
a = 9.8308
b = -0.0022
s = 0.0140
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0022) – 1
= -55.99%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0140) – 1
= 5.78%
November 24, 2025 calculations
Top border of price channel:
Exp(Y1,238)
= Exp(a + b × X1,238 + 2 × s)
= Exp(a + b × 1,802 + 2 × s)
= Exp(9.8308 + -0.0022 × 1,802 + 2 × 0.0140)
= Exp(5.8064)
= $332.42
Bottom border of price channel:
Exp(Y1,238)
= Exp(a + b × X1,238 – 2 × s)
= Exp(a + b × 1,802 – 2 × s)
= Exp(9.8308 + -0.0022 × 1,802 – 2 × 0.0140)
= Exp(5.7502)
= $314.26
December 17, 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(9.8308 + -0.0022 × 1,825 + 2 × 0.0140)
= Exp(5.7547)
= $315.66
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(9.8308 + -0.0022 × 1,825 – 2 × 0.0140)
= Exp(5.6985)
= $298.42
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 55.99% per annum.
- GOOGL price at the close of December 17, 2025 was lower than the bottom border of the secondary price channel by $1.70 (0.57%).