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V-Lab
V-Lab

Alphabet Inc GARCH Volatility Analysis

Volatility prediction for Monday, October 12th, 2026

1 Day

24.57%

decreased by 0.29%

1 Week

24.96%

increased by 0.10%

1 Month

26.21%

increased by 1.35%

Analysis last updated: Saturday, October 10, 2026 at 12:07 AM UTC

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Date Range:

from

10/09/2024

to

10/09/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Alphabet Inc GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 19, 2004 to Oct 9, 2026

Model Insight

Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days.

σ

GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 24-day half-life
ParamValuet-stat
ωconst0.1068
2.84***
αARCH0.0620
4.62***
βGARCH0.9098
43.58***

0.972

Persistence

24d

Half-life
σ

GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1068
2.84***
α

ARCH

Response to squared shocks

0.0620
4.62***
β

GARCH

Volatility persistence

0.9098
43.58***

Persistence:

0.972

Half-life:

24 days