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Van Lanschot Kempen NV Asymmetric ILLIQ Liquidity Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Illiquidity prediction for Tuesday, September 29th, 2026

1 Day

2,918.61

increased by 5.85

1 Week

2,671.01

decreased by 241.75

1 Month

2,396.25

decreased by 516.51

Analysis last updated: Tuesday, September 29, 2026 at 08:11 PM UTC

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Date Range:

from

09/28/2024

to

09/28/2026

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Van Lanschot Kempen NV ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Aug 22, 2018 to Sep 25, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 693147 trading days (~2750.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 159% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~693147 daysAsymmetry: Illiquidity rises 159% more after negative returns
ParamValuet-stat
ωconst5.0000
0.27
αARCH0.0410
3.27***
βGARCH0.9264
115.26***
γleverage0.0652
2.54**

1.000

Persistence

693147d

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.27
α

ARCH

Response to squared shocks

0.0410
3.27***
β

GARCH

Volatility persistence

0.9264
115.26***
γ

leverage

Additional response to negative shocks

0.0652
2.54**

Persistence:

1.000

Half-life:

693147 days