Skip to main content
V-Lab
V-Lab

Shift4 Payments Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, September 29th, 2026

1 Day

348.16

increased by 19.08

1 Week

355.80

increased by 26.72

1 Month

421.94

increased by 92.86

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

Press Delete or Backspace to remove this series.
Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Shift4 Payments Inc ILLIQ-SMEM

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 0.995, illiquidity shocks have a half-life of 146 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

High persistence: persistence 0.995, shock half-life ~146 days
ParamValuet-stat
ωconst1.0949
7.19***
αARCH0.0815
7.83***
βGARCH0.9138
83.38***
∑γi Spline Coefficients
K=1
γ1-0.0167
-0.25

0.995

Persistence

146d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0949
7.19***
α

ARCH

Response to squared shocks

0.0815
7.83***
β

GARCH

Volatility persistence

0.9138
83.38***
∑γi Spline Coefficients
K=1
γ1-0.0167
-0.25

Persistence:

0.995

Half-life:

146 days