V-Lab
Shenzhen Zhongheng Huafa Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 11th, 2026
1 Day
37,889.13
increased by 5,207.50
1 Week
37,646.43
increased by 4,964.80
1 Month
41,825.22
increased by 9,143.59
Analysis last updated: Friday, September 11, 2026 at 06:39 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 28, 1992 to Sep 4, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 1838 trading days (~7.3 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 ~1838 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3112 | 2.42** |
| αARCH | 0.2166 | 10.56*** |
| βGARCH | 0.7830 | 38.03*** |
Spline Coefficients
K=8
| γ1 | 0.0065 | 0.06 |
| γ2 | -1.0747 | -5.15*** |
| γ3 | 3.0978 | 8.05*** |
| γ4 | -4.2784 | -7.17*** |
| γ5 | 1.6085 | 1.58 |
| γ6 | 2.9517 | 1.54 |
| γ7 | -0.6987 | -0.37 |
| γ8 | -5.1329 | -1.75* |
1.000
Persistence1838d
Half-lifeμ
ILLIQ-SMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3112 | 2.42** |
α ARCH Response to squared shocks | 0.2166 | 10.56*** |
β GARCH Volatility persistence | 0.7830 | 38.03*** |
Spline Coefficients
K=8
| γ1 | 0.0065 | 0.06 |
| γ2 | -1.0747 | -5.15*** |
| γ3 | 3.0978 | 8.05*** |
| γ4 | -4.2784 | -7.17*** |
| γ5 | 1.6085 | 1.58 |
| γ6 | 2.9517 | 1.54 |
| γ7 | -0.6987 | -0.37 |
| γ8 | -5.1329 | -1.75* |
Persistence:
1.000
Half-life:
1838 days
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