V-Lab
Volex PLC ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Friday, September 11th, 2026
1 Day
9,995.47
1 Week
9,302.28
1 Month
7,942.61
Analysis last updated: Friday, September 11, 2026 at 09:54 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 2007 to Sep 4, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 538 trading days (~2.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. 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 | 21 | |
| αARCH | 0.0941 | 3.09*** |
| βGARCH | 0.9516 | 63.76*** |
| γleverage | -0.0941 | -2.14** |
| λ₁tau intercept | 10.0000 | 0.14 |
| λ₂forecast adj. | 0.3414 | 1.10 |
| λ₃tau persistence | 0.6586 | 11.93*** |
0.999
Persistence538d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0941 | 3.09*** |
β GARCH Volatility persistence | 0.9516 | 63.76*** |
γ leverage Additional response to negative shocks | -0.0941 | -2.14** |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 0.14 |
λ₂ forecast adj. Forecast performance sensitivity | 0.3414 | 1.10 |
λ₃ tau persistence Long-term factor persistence | 0.6586 | 11.93*** |
Persistence:
0.999
Half-life:
538 days
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