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Yamada Corp 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 Wednesday, September 9th, 2026

1 Day

2,506.47

increased by 1,367.81

1 Week

1,479.07

increased by 340.41

1 Month

1,720.35

increased by 581.69

Analysis last updated: Wednesday, September 9, 2026 at 07:46 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Yamada Corp ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Oct 1, 1992 to Sep 4, 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 95% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~693147 daysAsymmetry: Illiquidity rises 95% more after negative returns
ParamValuet-stat
ωconst5.0000
0.75
αARCH0.0608
6.19***
βGARCH0.9104
176.95***
γleverage0.0576
3.09***

1.000

Persistence

693147d

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.75
α

ARCH

Response to squared shocks

0.0608
6.19***
β

GARCH

Volatility persistence

0.9104
176.95***
γ

leverage

Additional response to negative shocks

0.0576
3.09***

Persistence:

1.000

Half-life:

693147 days