V-Lab
E.ON SE Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
21.58%
decreased by 1.01%
1 Week
21.72%
decreased by 0.87%
1 Month
22.14%
decreased by 0.45%
Analysis last updated: Sunday, July 26, 2026 at 12:14 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Jul 24, 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 | 1.4161 | 4.54*** |
α ARCH Response to squared shocks | 0.0896 | 8.92*** |
β GARCH Volatility persistence | 0.8645 | 55.91*** |
Spline Coefficients
K=6
| γ1 | 0.0878 | 5.52*** |
| γ2 | -0.1389 | -6.12*** |
| γ3 | 0.0834 | 5.38*** |
| γ4 | -0.0513 | -3.64*** |
| γ5 | 0.0234 | 1.75* |
| γ6 | -0.0025 | -0.26 |
Persistence:
0.954
Half-life:
15 days
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