V-Lab
Isrotel Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Wednesday, September 30th, 2026
1 Day
6,125.26
increased by 1,253.56
1 Week
5,312.33
increased by 440.63
1 Month
4,868.35
decreased by 3.35
Analysis last updated: Wednesday, September 30, 2026 at 07:43 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 19, 2007 to Sep 24, 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 5 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 | 0.6062 | 2.02** |
| αARCH | 0.1760 | 5.40*** |
| βGARCH | 0.6924 | 14.44*** |
Spline Coefficients
K=10
| γ1 | -1.5072 | -0.55 |
| γ2 | -1.9860 | -0.44 |
| γ3 | 7.3753 | 2.32** |
| γ4 | -5.5095 | -2.77*** |
| γ5 | 2.5719 | 2.04** |
| γ6 | -2.1254 | -1.84* |
| γ7 | 1.9470 | 1.94* |
| γ8 | -1.9877 | -2.18** |
| γ9 | 2.1257 | 2.16** |
| γ10 | -0.2837 | -0.27 |
0.868
Persistence5d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6062 | 2.02** |
α ARCH Response to squared shocks | 0.1760 | 5.40*** |
β GARCH Volatility persistence | 0.6924 | 14.44*** |
Spline Coefficients
K=10
| γ1 | -1.5072 | -0.55 |
| γ2 | -1.9860 | -0.44 |
| γ3 | 7.3753 | 2.32** |
| γ4 | -5.5095 | -2.77*** |
| γ5 | 2.5719 | 2.04** |
| γ6 | -2.1254 | -1.84* |
| γ7 | 1.9470 | 1.94* |
| γ8 | -1.9877 | -2.18** |
| γ9 | 2.1257 | 2.16** |
| γ10 | -0.2837 | -0.27 |
Persistence:
0.868
Half-life:
5 days
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