V-Lab
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
1 Week
1,479.07
1 Month
1,720.35
Analysis last updated: Wednesday, September 9, 2026 at 07:46 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 1, 1992 to Sep 4, 2026Model 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
ILLIQ-AMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 0.75 |
| αARCH | 0.0608 | 6.19*** |
| βGARCH | 0.9104 | 176.95*** |
| γleverage | 0.0576 | 3.09*** |
1.000
Persistence693147d
Half-lifeILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-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
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