V-Lab
NX Filtration N.V. Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
73.95%
increased by 10.28%
1 Week
71.26%
increased by 7.59%
1 Month
69.72%
increased by 6.05%
Analysis last updated: Tuesday, August 25, 2026 at 06:34 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 15, 2021 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 1 trading day.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.7142 | 4.08*** |
α ARCH Response to squared shocks | 0.2301 | 4.06*** |
β GARCH Volatility persistence | 0.3263 | 2.88*** |
Spline Coefficients
K=10
| γ1 | 5.6808 | 1.77* |
| γ2 | -7.2275 | -1.42 |
| γ3 | 0.4772 | 0.12 |
| γ4 | 5.0540 | 1.39 |
| γ5 | -2.8280 | -0.71 |
| γ6 | -7.7293 | -1.72* |
| γ7 | 11.0379 | 2.90*** |
| γ8 | -8.9238 | -2.41** |
| γ9 | 10.8908 | 3.02*** |
| γ10 | -9.4674 | -3.40*** |
Persistence:
0.556
Half-life:
1 days
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