V-Lab
Xior Student Housing NV Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, October 1st, 2026
1 Day
18.08%
decreased by 0.63%
1 Week
18.45%
decreased by 0.26%
1 Month
19.19%
increased by 0.48%
Analysis last updated: Thursday, October 1, 2026 at 06:15 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 11, 2015 to Sep 25, 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 6 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8633 | 5.60*** |
| αARCH | 0.1122 | 5.51*** |
| βGARCH | 0.7713 | 19.46*** |
Spline Coefficients
K=5
| γ1 | 0.2179 | 1.55 |
| γ2 | -0.3322 | -1.71* |
| γ3 | 0.1919 | 1.83* |
| γ4 | -0.2403 | -2.53** |
| γ5 | 0.2633 | 3.82*** |
0.883
Persistence6d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8633 | 5.60*** |
α ARCH Response to squared shocks | 0.1122 | 5.51*** |
β GARCH Volatility persistence | 0.7713 | 19.46*** |
Spline Coefficients
K=5
| γ1 | 0.2179 | 1.55 |
| γ2 | -0.3322 | -1.71* |
| γ3 | 0.1919 | 1.83* |
| γ4 | -0.2403 | -2.53** |
| γ5 | 0.2633 | 3.82*** |
Persistence:
0.883
Half-life:
6 days
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