V-Lab
E.ON SE GJR-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
22.54%
increased by 2.78%
1 Week
22.71%
increased by 2.95%
1 Month
23.29%
increased by 3.53%
Analysis last updated: Saturday, September 19, 2026 at 08:37 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 18, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 113% more than equivalent positive returns.
σ
GJR-GARCH Model
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Leverage: Negative returns increase volatility 113% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0626 | 5.70*** |
| αARCH | 0.0495 | 4.11*** |
| βGARCH | 0.8994 | 87.46*** |
| γleverage | 0.0557 | 2.19** |
0.977
Persistence30d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0626 | 5.70*** |
α ARCH Response to squared shocks | 0.0495 | 4.11*** |
β GARCH Volatility persistence | 0.8994 | 87.46*** |
γ leverage Additional response to negative shocks | 0.0557 | 2.19** |
Persistence:
0.977
Half-life:
30 days
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