V-Lab
Altarea SCA Asymmetric 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 21st, 2026
1 Day
15,501.61
1 Week
16,897.34
1 Month
16,615.97
Analysis last updated: Saturday, September 19, 2026 at 08:06 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 19, 1991 to Sep 18, 2026Model Insight
Estimated persistence of 1.000 is at or above 1 (non-stationary): illiquidity shocks do not decay and the long-run level is undefined, so long-horizon forecasts should be treated with caution.
Asymmetry: Illiquidity rises 86% more after negative returns
ILLIQ-AMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 0.11 |
| αARCH | 0.0407 | 2.57** |
| βGARCH | 0.9419 | 81.53*** |
| γleverage | 0.0348 | 2.10** |
1.000
Persistence-
Half-lifeILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 0.11 |
α ARCH Response to squared shocks | 0.0407 | 2.57** |
β GARCH Volatility persistence | 0.9419 | 81.53*** |
γ leverage Additional response to negative shocks | 0.0348 | 2.10** |
Persistence:
1.000
Half-life:
-
Other Altarea SCA Analyses
Other Asymmetric ILLIQ Analyses on Real Estate