V-Lab
Mercialys SA ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
4,823.86
1 Week
4,354.73
1 Month
4,240.20
Analysis last updated: Saturday, September 19, 2026 at 08:05 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 11, 2005 to Sep 18, 2026Model Insight
Illiquidity shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.
ILLIQ-MFMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 26 | |
| αARCH | 0.0778 | 9.69*** |
| βGARCH | 0.8797 | 53.75*** |
| γleverage | -0.0778 | -4.55*** |
| λ₁tau intercept | 9.5071 | 1.69* |
| λ₂forecast adj. | 0.0217 | 2.15** |
| λ₃tau persistence | 0.9752 | 88.36*** |
0.919
Persistence8d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 26 | |
α ARCH Response to squared shocks | 0.0778 | 9.69*** |
β GARCH Volatility persistence | 0.8797 | 53.75*** |
γ leverage Additional response to negative shocks | -0.0778 | -4.55*** |
λ₁ tau intercept Baseline long-term coefficient | 9.5071 | 1.69* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0217 | 2.15** |
λ₃ tau persistence Long-term factor persistence | 0.9752 | 88.36*** |
Persistence:
0.919
Half-life:
8 days
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