Shift4 Payments Inc Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, October 19th, 2026
1 Day
300.20
decreased by 19.55
1 Week
307.28
decreased by 12.47
1 Month
362.68
increased by 42.93
Analysis last updated: Friday, October 16, 2026 at 11:12 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 5, 2020 to Oct 16, 2026Model Insight
With persistence 0.995, illiquidity shocks have a half-life of 141 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 222% more after negative returns
μ
ILLIQ-AMEM Model
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High persistence: persistence 0.995, shock half-life ~141 daysAsymmetry: Illiquidity rises 222% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.2676 | 1.05 |
| αARCH | 0.0307 | 2.05** |
| βGARCH | 0.9303 | 101.03*** |
| γleverage | 0.0682 | 2.23** |
0.995
Persistence141d
Half-lifeμ
ILLIQ-AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2676 | 1.05 |
α ARCH Response to squared shocks | 0.0307 | 2.05** |
β GARCH Volatility persistence | 0.9303 | 101.03*** |
γ leverage Additional response to negative shocks | 0.0682 | 2.23** |
Persistence:
0.995
Half-life:
141 days
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