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V-Lab

FTSE 100 Implied Volatility Index 30 Days MF2-GARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

97.01%

decreased by 6.03%

1 Week

98.19%

decreased by 4.85%

1 Month

99.79%

decreased by 3.25%

Analysis last updated: Tuesday, September 8, 2026 at 11:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of FTSE 100 Implied Volatility Index 30 Days MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 2000 to Sep 3, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

MF2-GARCH Model

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Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
mwindow26
αARCH0.2025
6.97***
βGARCH0.7107
20.10***
γleverage-0.1816
-4.88***
λ₁tau intercept0.0783
0.97
λ₂forecast adj.0.0069
2.58***
λ₃tau persistence0.9914
235.83***

0.822

Persistence

4d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

26
α

ARCH

Response to squared shocks

0.2025
6.97***
β

GARCH

Volatility persistence

0.7107
20.10***
γ

leverage

Additional response to negative shocks

-0.1816
-4.88***
λ₁

tau intercept

Baseline long-term coefficient

0.0783
0.97
λ₂

forecast adj.

Forecast performance sensitivity

0.0069
2.58***
λ₃

tau persistence

Long-term factor persistence

0.9914
235.83***

Persistence:

0.822

Half-life:

4 days