V-Lab
Vivmark Residential Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
40.87
decreased by 0.36
1 Week
41.64
increased by 0.41
1 Month
49.18
increased by 7.95
Analysis last updated: Friday, September 18, 2026 at 11:53 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Aug 12, 1993 to Sep 18, 2026Model Insight
With persistence 0.997, illiquidity shocks have a half-life of 211 trading days (~0.8 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 0.997, shock half-life ~211 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.4131 | 5.82*** |
| αARCH | 0.0457 | 11.33*** |
| βGARCH | 0.9510 | 213.81*** |
Spline Coefficients
K=3
| γ1 | -0.0130 | -2.00** |
| γ2 | 0.0262 | 2.44** |
| γ3 | -0.0192 | -1.82* |
0.997
Persistence211d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.4131 | 5.82*** |
α ARCH Response to squared shocks | 0.0457 | 11.33*** |
β GARCH Volatility persistence | 0.9510 | 213.81*** |
Spline Coefficients
K=3
| γ1 | -0.0130 | -2.00** |
| γ2 | 0.0262 | 2.44** |
| γ3 | -0.0192 | -1.82* |
Persistence:
0.997
Half-life:
211 days
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