V-Lab
Energys Group Ltd GJR-GARCH Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Monday, July 27th, 2026
1 Day
86.86%
1 Week
100.33%
1 Month
141.93%
Analysis last updated: Friday, July 24, 2026 at 09:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 1, 2025 to Jul 24, 2026Model Insight
Estimated persistence of 1.000 is at or above 1 (non-stationary): volatility shocks do not decay and the long-run variance is undefined, so long-horizon forecasts should be treated with caution.
Inverse leverage: volatility responds almost entirely to positive returns
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 2.27** |
α ARCH Response to squared shocks | 0.3936 | 7.63*** |
β GARCH Volatility persistence | 0.7752 | 17.29*** |
γ leverage Additional response to negative shocks | -0.3376 | -6.62*** |
Persistence:
1.000
Half-life:
-
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