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Bank of New York Mellon Corp/The ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Monday, September 28th, 2026
1 Day
20.61
1 Week
21.92
1 Month
24.70
Analysis last updated: Saturday, September 26, 2026 at 12:01 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Sep 25, 2026Model Insight
Illiquidity shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 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 | 46 | |
| αARCH | 0.0887 | 5.49*** |
| βGARCH | 0.7930 | 25.09*** |
| γleverage | -0.0887 | -1.65* |
| λ₁tau intercept | 3.1845 | 1.34 |
| λ₂forecast adj. | 0.9666 | 32.58*** |
| λ₃tau persistence | 0.0090 | 7.79*** |
0.837
Persistence4d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 46 | |
α ARCH Response to squared shocks | 0.0887 | 5.49*** |
β GARCH Volatility persistence | 0.7930 | 25.09*** |
γ leverage Additional response to negative shocks | -0.0887 | -1.65* |
λ₁ tau intercept Baseline long-term coefficient | 3.1845 | 1.34 |
λ₂ forecast adj. Forecast performance sensitivity | 0.9666 | 32.58*** |
λ₃ tau persistence Long-term factor persistence | 0.0090 | 7.79*** |
Persistence:
0.837
Half-life:
4 days
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