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

Volatility prediction for Friday, October 16th, 2026

1 Day

101.00%

increased by 7.35%

1 Week

102.00%

increased by 8.35%

1 Month

104.00%

increased by 10.35%

Analysis last updated: Friday, October 16, 2026 at 11:50 PM UTC

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Date Range:

from

10/15/2024

to

10/15/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

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

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 2000 to Oct 8, 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

GJR-GARCH Model

Tap to view equation

Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
ωconst5.0000
3.52***
αARCH0.1730
3.74***
βGARCH0.7900
27.04***
γleverage-0.1507
-2.51**

0.888

Persistence

6d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
3.52***
α

ARCH

Response to squared shocks

0.1730
3.74***
β

GARCH

Volatility persistence

0.7900
27.04***
γ

leverage

Additional response to negative shocks

-0.1507
-2.51**

Persistence:

0.888

Half-life:

6 days