V-Lab
Css Holdings Ltd Spline ILLIQ Liquidity Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Illiquidity prediction for Friday, September 11th, 2026
1 Day
9,148.65
increased by 7,105.35
1 Week
3,538.06
increased by 1,494.76
1 Month
3,173.66
increased by 1,130.36
Analysis last updated: Friday, September 11, 2026 at 07:59 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 13, 2002 to Sep 4, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 86643 trading days (~343.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 1.000, shock half-life ~86643 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9025 | 0.25 |
| αARCH | 0.1728 | 0.03 |
| βGARCH | 0.8272 | 0.14 |
Spline Coefficients
K=5
| γ1 | 0.3149 | 0.01 |
| γ2 | -0.8042 | -0.02 |
| γ3 | 0.8054 | 0.17 |
| γ4 | -0.5172 | -0.15 |
| γ5 | 0.3993 | 0.15 |
1.000
Persistence86643d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9025 | 0.25 |
α ARCH Response to squared shocks | 0.1728 | 0.03 |
β GARCH Volatility persistence | 0.8272 | 0.14 |
Spline Coefficients
K=5
| γ1 | 0.3149 | 0.01 |
| γ2 | -0.8042 | -0.02 |
| γ3 | 0.8054 | 0.17 |
| γ4 | -0.5172 | -0.15 |
| γ5 | 0.3993 | 0.15 |
Persistence:
1.000
Half-life:
86643 days
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