V-Lab
Guangzhou Development Group Inc 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 30th, 2026
1 Day
88.70
1 Week
85.58
1 Month
88.94
Analysis last updated: Wednesday, September 30, 2026 at 06:19 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 18, 1997 to Sep 24, 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 | 4.1832 | 1.21 |
| αARCH | 0.2082 | 1.28 |
| βGARCH | 0.7769 | 42.45*** |
| γleverage | 0.0298 | 0.15 |
1.000
Persistence1386294d
Half-lifeILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 4.1832 | 1.21 |
α ARCH Response to squared shocks | 0.2082 | 1.28 |
β GARCH Volatility persistence | 0.7769 | 42.45*** |
γ leverage Additional response to negative shocks | 0.0298 | 0.15 |
Persistence:
1.000
Half-life:
1386294 days
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