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V-Lab
V-Lab

FTSE 100 Index GARCH Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

10.43%

decreased by 0.23%

1 Week

10.73%

increased by 0.07%

1 Month

11.72%

increased by 1.06%

Analysis last updated: Friday, September 11, 2026 at 05:03 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of FTSE 100 Index GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 34 trading days, meaning a shock loses half its impact after approximately 34 days.

σ

GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 34-day half-life
ParamValuet-stat
ωconst0.0215
6.33***
αARCH0.1047
11.56***
βGARCH0.8753
92.11***

0.980

Persistence

34d

Half-life
σ

GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0215
6.33***
α

ARCH

Response to squared shocks

0.1047
11.56***
β

GARCH

Volatility persistence

0.8753
92.11***

Persistence:

0.980

Half-life:

34 days