V-Lab
Howmet Aerospace Inc ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
21.21
1 Week
22.15
1 Month
25.23
Analysis last updated: Friday, September 18, 2026 at 11:32 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Sep 18, 2026Model Insight
Illiquidity shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 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
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 66 | |
| αARCH | 0.0710 | 13.60*** |
| βGARCH | 0.9047 | 120.54*** |
| γleverage | -0.0710 | -3.31*** |
| λ₁tau intercept | 0.0000 | 0.00 |
| λ₂forecast adj. | 0.1298 | 5.57*** |
| λ₃tau persistence | 0.8692 | 37.44*** |
0.940
Persistence11d
Half-lifeILLIQ-MFMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 66 | |
α ARCH Response to squared shocks | 0.0710 | 13.60*** |
β GARCH Volatility persistence | 0.9047 | 120.54*** |
γ leverage Additional response to negative shocks | -0.0710 | -3.31*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0000 | 0.00 |
λ₂ forecast adj. Forecast performance sensitivity | 0.1298 | 5.57*** |
λ₃ tau persistence Long-term factor persistence | 0.8692 | 37.44*** |
Persistence:
0.940
Half-life:
11 days
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