Skip to main content
V-Lab

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

Volatility prediction for Friday, July 24th, 2026

1 Day

132.09%

increased by 32.20%

1 Week

127.30%

increased by 27.41%

1 Month

116.89%

increased by 17.00%

Analysis last updated: Friday, July 24, 2026 at 11:23 PM UTC

Date Range:

from

to

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 Apr 2, 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
13.86***
α

ARCH

Response to squared shocks

0.1724
14.79***
β

GARCH

Volatility persistence

0.7908
107.45***
γ

leverage

Additional response to negative shocks

-0.1505
-9.86***

Persistence:

0.888

Half-life:

6 days