Wereldhave Belgium NV Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, October 27th, 2026
1 Day
72,562.87
decreased by 1,480.00
1 Week
75,072.63
increased by 1,029.76
1 Month
87,852.42
increased by 13,809.55
Analysis last updated: Tuesday, October 27, 2026 at 06:15 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 18, 1998 to Oct 23, 2026Model Insight
This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 19 trading days.
μ
ILLIQ-SMEM Model
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Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.2392 | 6.91*** |
| αARCH | 0.1199 | 12.80*** |
| βGARCH | 0.8452 | 66.85*** |
Spline Coefficients
K=6
| γ1 | -0.1389 | -6.24*** |
| γ2 | 0.2051 | 5.79*** |
| γ3 | -0.0962 | -3.38*** |
| γ4 | 0.0191 | 0.70 |
| γ5 | 0.0723 | 2.64*** |
| γ6 | -0.1702 | -3.86*** |
0.965
Persistence19d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2392 | 6.91*** |
α ARCH Response to squared shocks | 0.1199 | 12.80*** |
β GARCH Volatility persistence | 0.8452 | 66.85*** |
Spline Coefficients
K=6
| γ1 | -0.1389 | -6.24*** |
| γ2 | 0.2051 | 5.79*** |
| γ3 | -0.0962 | -3.38*** |
| γ4 | 0.0191 | 0.70 |
| γ5 | 0.0723 | 2.64*** |
| γ6 | -0.1702 | -3.86*** |
Persistence:
0.965
Half-life:
19 days
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