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V-Lab
V-Lab

Alphabet Inc MEM Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

23.72%

increased by 1.70%

1 Week

24.19%

increased by 2.17%

1 Month

25.78%

increased by 3.76%

Analysis last updated: Friday, September 11, 2026 at 10:51 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Alphabet Inc MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 19, 2004 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 35 trading days, meaning a shock loses half its impact after approximately 35 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 35-day half-life
ParamValuet-stat
ωconst0.0891
1.89*
αARCH0.2136
9.93***
βGARCH0.7670
53.64***

0.981

Persistence

35d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0891
1.89*
α

ARCH

Response to squared shocks

0.2136
9.93***
β

GARCH

Volatility persistence

0.7670
53.64***

Persistence:

0.981

Half-life:

35 days