V-Lab
Shift4 Payments Inc ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Tuesday, September 8th, 2026
1 Day
445.78
1 Week
452.84
1 Month
512.16
Analysis last updated: Friday, September 4, 2026 at 10:51 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 5, 2020 to Sep 4, 2026Model Insight
This asset shows asymmetric liquidity dynamics: illiquidity rises 235% more after negative returns than after positive returns of equal magnitude. 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 | 0.0954 | 6.61*** |
| βGARCH | 0.7325 | 20.51*** |
| γleverage | 0.2244 | 7.22*** |
| λ₁tau intercept | 6.8233 | 1.14 |
| λ₂forecast adj. | 0.1821 | 3.95*** |
| λ₃tau persistence | 0.8117 | 16.72*** |
0.940
Persistence11d
Half-lifeILLIQ-MFMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0954 | 6.61*** |
β GARCH Volatility persistence | 0.7325 | 20.51*** |
γ leverage Additional response to negative shocks | 0.2244 | 7.22*** |
λ₁ tau intercept Baseline long-term coefficient | 6.8233 | 1.14 |
λ₂ forecast adj. Forecast performance sensitivity | 0.1821 | 3.95*** |
λ₃ tau persistence Long-term factor persistence | 0.8117 | 16.72*** |
Persistence:
0.940
Half-life:
11 days
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