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V-Lab

FTSE 100 Index GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, August 6th, 2026

1 Day

9.44%

decreased by 0.23%

1 Week

9.80%

increased by 0.13%

1 Month

10.95%

increased by 1.28%

Analysis last updated: Wednesday, August 5, 2026 at 05:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of FTSE 100 Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jul 31, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0219
21.59***
α

ARCH

Response to squared shocks

0.0148
8.51***
β

GARCH

Volatility persistence

0.8946
499.48***
γ

leverage

Additional response to negative shocks

0.1370
27.18***

Persistence:

0.978

Half-life:

31 days