Guangzhou Development Group Inc Spline 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, November 5th, 2026
1 Day
61.83
decreased by 9.02
1 Week
84.97
increased by 14.12
1 Month
107.38
increased by 36.53
Analysis last updated: Thursday, November 5, 2026 at 07:05 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 18, 1997 to Nov 2, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 77016 trading days (~305.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 1.000, shock half-life ~77016 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6558 | 0.13 |
| αARCH | 0.2371 | 0.00 |
| βGARCH | 0.7629 | 0.01 |
Spline Coefficients
K=5
| γ1 | -0.8517 | 0.00 |
| γ2 | 2.8282 | 0.01 |
| γ3 | -3.4561 | 0.00 |
| γ4 | 2.0553 | 0.00 |
| γ5 | -0.9287 | 0.00 |
1.000
Persistence77016d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6558 | 0.13 |
α ARCH Response to squared shocks | 0.2371 | 0.00 |
β GARCH Volatility persistence | 0.7629 | 0.01 |
Spline Coefficients
K=5
| γ1 | -0.8517 | 0.00 |
| γ2 | 2.8282 | 0.01 |
| γ3 | -3.4561 | 0.00 |
| γ4 | 2.0553 | 0.00 |
| γ5 | -0.9287 | 0.00 |
Persistence:
1.000
Half-life:
77016 days
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