V-Lab
Corp America Airports SA 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, July 27th, 2026
1 Day
3,014.41
1 Week
3,173.60
1 Month
3,547.64
Analysis last updated: Friday, July 24, 2026 at 10:23 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Feb 1, 2018 to Jul 24, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 693147 trading days (~2750.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 103% more after negative returns
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 0.65 |
α ARCH Response to squared shocks | 0.0525 | 15.17*** |
β GARCH Volatility persistence | 0.9205 | 364.71*** |
γ leverage Additional response to negative shocks | 0.0539 | 9.56*** |
Persistence:
1.000
Half-life:
693147 days
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