V-Lab
Cybertech Systems & Software 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 Wednesday, September 30th, 2026
1 Day
7,199.27
increased by 30.77
1 Week
5,730.12
decreased by 1,438.38
1 Month
6,198.02
decreased by 970.48
Analysis last updated: Wednesday, September 30, 2026 at 07:27 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 13, 2005 to Sep 25, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 173286 trading days (~687.6 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 ~173286 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7542 | 0.32 |
| αARCH | 0.1581 | 0.02 |
| βGARCH | 0.8419 | 0.11 |
Spline Coefficients
K=3
| γ1 | -0.1981 | -0.01 |
| γ2 | 0.1904 | 0.01 |
| γ3 | 0.0970 | 0.02 |
1.000
Persistence173286d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7542 | 0.32 |
α ARCH Response to squared shocks | 0.1581 | 0.02 |
β GARCH Volatility persistence | 0.8419 | 0.11 |
Spline Coefficients
K=3
| γ1 | -0.1981 | -0.01 |
| γ2 | 0.1904 | 0.01 |
| γ3 | 0.0970 | 0.02 |
Persistence:
1.000
Half-life:
173286 days
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