V-Lab
E.ON SE Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
24.95%
decreased by 1.01%
1 Week
24.81%
decreased by 1.15%
1 Month
24.40%
decreased by 1.56%
Analysis last updated: Saturday, August 22, 2026 at 08:44 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 15 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.4131 | 4.52*** |
α ARCH Response to squared shocks | 0.0892 | 8.92*** |
β GARCH Volatility persistence | 0.8654 | 56.26*** |
Spline Coefficients
K=6
| γ1 | 0.0870 | 5.48*** |
| γ2 | -0.1377 | -6.09*** |
| γ3 | 0.0830 | 5.37*** |
| γ4 | -0.0517 | -3.66*** |
| γ5 | 0.0243 | 1.83* |
| γ6 | -0.0035 | -0.36 |
Persistence:
0.955
Half-life:
15 days
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