V-Lab
Bpl Ltd ILLIQ-MFMEM Liquidity Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Illiquidity prediction for Tuesday, September 8th, 2026
1 Day
5,257.86
1 Week
5,663.19
1 Month
5,474.79
Analysis last updated: Tuesday, September 8, 2026 at 08:31 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 26, 1997 to Sep 4, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 24321 trading days (~96.5 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.
Asymmetry: Illiquidity rises 222% more after negative returns
ILLIQ-MFMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 61 | |
| αARCH | 0.1831 | 3.16*** |
| βGARCH | 0.6139 | 43.78*** |
| γleverage | 0.4059 | 3.80*** |
| λ₁tau intercept | 8.9860 | 0.06 |
| λ₂forecast adj. | 1.0000 | 11.85*** |
| λ₃tau persistence | 0.0000 | 0.00 |
1.000
Persistence24321d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 61 | |
α ARCH Response to squared shocks | 0.1831 | 3.16*** |
β GARCH Volatility persistence | 0.6139 | 43.78*** |
γ leverage Additional response to negative shocks | 0.4059 | 3.80*** |
λ₁ tau intercept Baseline long-term coefficient | 8.9860 | 0.06 |
λ₂ forecast adj. Forecast performance sensitivity | 1.0000 | 11.85*** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
1.000
Half-life:
24321 days
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