Weichai Heavy Machinery Co Ltd 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 Thursday, October 15th, 2026
1 Day
84.79
1 Week
91.63
1 Month
84.97
Analysis last updated: Thursday, October 15, 2026 at 06:36 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 2, 1998 to Oct 9, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
ILLIQ-AMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| ωconst | 3.3773 | 2.76*** |
| αARCH | 0.1657 | 2.67*** |
| βGARCH | 0.7694 | 35.45*** |
| γleverage | 0.1298 | 1.87* |
1.000
Persistence1386294d
Half-lifeILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.3773 | 2.76*** |
α ARCH Response to squared shocks | 0.1657 | 2.67*** |
β GARCH Volatility persistence | 0.7694 | 35.45*** |
γ leverage Additional response to negative shocks | 0.1298 | 1.87* |
Persistence:
1.000
Half-life:
1386294 days
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