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Arko Corp Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, September 14th, 2026

1 Day

4,053.85

decreased by 76.09

1 Week

4,164.99

increased by 35.05

1 Month

4,239.25

increased by 109.31

Analysis last updated: Friday, September 11, 2026 at 10:13 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Arko Corp ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jul 23, 2019 to Sep 11, 2026

Model Insight

This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 6 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.1844
1.58
αARCH0.0244
1.14
βGARCH0.8583
9.66***
γi Spline Coefficients
K=8
γ1-7.5641
-2.36**
γ211.6617
2.75***
γ3-4.8145
-3.05***
γ40.9996
1.33
γ5-0.3276
-0.74
γ6-0.0007
0.00
γ7-0.2146
-0.53
γ8-0.2301
-0.37

0.883

Persistence

6d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.1844
1.58
α

ARCH

Response to squared shocks

0.0244
1.14
β

GARCH

Volatility persistence

0.8583
9.66***
γi Spline Coefficients
K=8
γ1-7.5641
-2.36**
γ211.6617
2.75***
γ3-4.8145
-3.05***
γ40.9996
1.33
γ5-0.3276
-0.74
γ6-0.0007
0.00
γ7-0.2146
-0.53
γ8-0.2301
-0.37

Persistence:

0.883

Half-life:

6 days