V-Lab
Quercus Tfi Sa 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 Monday, September 7th, 2026
1 Day
42,131.68
decreased by 1,506.52
1 Week
43,791.14
increased by 152.94
1 Month
53,825.06
increased by 10,186.86
Analysis last updated: Sunday, September 6, 2026 at 02:01 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Sep 11, 2008 to Sep 4, 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
Tap to view equation
High persistence: persistence 1.000, shock half-life ~173286 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 6.0839 | |
| αARCH | 0.0827 | |
| βGARCH | 0.9173 |
Spline Coefficients
K=8
| γ1 | 0.9006 | |
| γ2 | -2.8835 | |
| γ3 | 2.1643 | |
| γ4 | 3.0336 | |
| γ5 | -6.7511 | |
| γ6 | 6.2169 | |
| γ7 | -6.4326 | |
| γ8 | 7.3017 |
1.000
Persistence173286d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 6.0839 | |
α ARCH Response to squared shocks | 0.0827 | |
β GARCH Volatility persistence | 0.9173 |
Spline Coefficients
K=8
| γ1 | 0.9006 | |
| γ2 | -2.8835 | |
| γ3 | 2.1643 | |
| γ4 | 3.0336 | |
| γ5 | -6.7511 | |
| γ6 | 6.2169 | |
| γ7 | -6.4326 | |
| γ8 | 7.3017 |
Persistence:
1.000
Half-life:
173286 days
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