V-Lab
Shenzhen Zhongheng Huafa Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 17th, 2026
1 Day
20,639.98
decreased by 5,713.98
1 Week
30,880.70
increased by 4,526.74
1 Month
38,749.06
increased by 12,395.10
Analysis last updated: Thursday, September 17, 2026 at 06:27 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 28, 1992 to Sep 14, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 1848 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 ~1848 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3079 | 2.43** |
| αARCH | 0.2165 | 10.52*** |
| βGARCH | 0.7832 | 37.93*** |
Spline Coefficients
K=8
| γ1 | 0.0025 | 0.02 |
| γ2 | -1.0659 | -5.12*** |
| γ3 | 3.0925 | 8.11*** |
| γ4 | -4.3023 | -7.27*** |
| γ5 | 1.6656 | 1.64 |
| γ6 | 2.9420 | 1.53 |
| γ7 | -0.7757 | -0.42 |
| γ8 | -5.0855 | -1.75* |
1.000
Persistence1848d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3079 | 2.43** |
α ARCH Response to squared shocks | 0.2165 | 10.52*** |
β GARCH Volatility persistence | 0.7832 | 37.93*** |
Spline Coefficients
K=8
| γ1 | 0.0025 | 0.02 |
| γ2 | -1.0659 | -5.12*** |
| γ3 | 3.0925 | 8.11*** |
| γ4 | -4.3023 | -7.27*** |
| γ5 | 1.6656 | 1.64 |
| γ6 | 2.9420 | 1.53 |
| γ7 | -0.7757 | -0.42 |
| γ8 | -5.0855 | -1.75* |
Persistence:
1.000
Half-life:
1848 days
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