V-Lab
FDM Group (Holdings) plc GJR-GARCH Volatility Analysis
Volatility prediction for Friday, August 14th, 2026
1 Day
38.23%
decreased by 2.29%
1 Week
37.87%
decreased by 2.65%
1 Month
37.09%
decreased by 3.43%
Analysis last updated: Friday, August 14, 2026 at 08:27 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 19, 2014 to Aug 7, 2026Model Insight
Volatility shocks decay with a half-life of 6 trading days, meaning a shock loses half its impact after approximately 6 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5514 | 11.81*** |
α ARCH Response to squared shocks | 0.0679 | 7.17*** |
β GARCH Volatility persistence | 0.8052 | 64.05*** |
γ leverage Additional response to negative shocks | 0.0427 | 1.44 |
Persistence:
0.894
Half-life:
6 days
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