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Shift4 Payments Inc Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, September 29th, 2026

1 Day

428.40

increased by 29.21

1 Week

428.83

increased by 29.64

1 Month

467.54

increased by 68.35

Analysis last updated: Monday, September 28, 2026 at 09:43 PM UTC

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graph of Shift4 Payments Inc ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 5, 2020 to Sep 25, 2026

Model Insight

With persistence 0.996, illiquidity shocks have a half-life of 155 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 233% more after negative returns

μ

ILLIQ-AMEM Model

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High persistence: persistence 0.996, shock half-life ~155 daysAsymmetry: Illiquidity rises 233% more after negative returns
ParamValuet-stat
ωconst1.1987
0.99
αARCH0.0294
1.94*
βGARCH0.9318
100.28***
γleverage0.0685
2.24**

0.996

Persistence

155d

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.1987
0.99
α

ARCH

Response to squared shocks

0.0294
1.94*
β

GARCH

Volatility persistence

0.9318
100.28***
γ

leverage

Additional response to negative shocks

0.0685
2.24**

Persistence:

0.996

Half-life:

155 days