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Bank of New York Mellon Corp/The ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Tuesday, September 8th, 2026
1 Day
26.09
1 Week
26.23
1 Month
29.97
Analysis last updated: Friday, September 4, 2026 at 10:38 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 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 | 0.0886 | 5.45*** |
| βGARCH | 0.7924 | 24.84*** |
| γleverage | -0.0886 | -1.66* |
| λ₁tau intercept | 3.3812 | 1.40 |
| λ₂forecast adj. | 0.9669 | 32.80*** |
| λ₃tau persistence | 0.0071 | 5.45*** |
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 | 0.0886 | 5.45*** |
β GARCH Volatility persistence | 0.7924 | 24.84*** |
γ leverage Additional response to negative shocks | -0.0886 | -1.66* |
λ₁ tau intercept Baseline long-term coefficient | 3.3812 | 1.40 |
λ₂ forecast adj. Forecast performance sensitivity | 0.9669 | 32.80*** |
λ₃ tau persistence Long-term factor persistence | 0.0071 | 5.45*** |
Persistence:
0.837
Half-life:
4 days
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