V-Lab
Shanghai Dazhong Public Util Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, October 5th, 2026
1 Day
12,508.53
increased by 9,342.58
1 Week
5,486.25
increased by 2,320.30
1 Month
2,842.27
decreased by 323.68
Analysis last updated: Saturday, October 3, 2026 at 07:11 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 5, 2016 to Oct 2, 2026Model Insight
With persistence 0.993, illiquidity shocks have a half-life of 103 trading days (~0.4 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 0.993, shock half-life ~103 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7420 | 2.84*** |
| αARCH | 0.2957 | 7.71*** |
| βGARCH | 0.6976 | 18.54*** |
Spline Coefficients
K=9
| γ1 | -3.5872 | -1.58 |
| γ2 | 4.1667 | 1.28 |
| γ3 | -0.2348 | -0.11 |
| γ4 | -1.6053 | -0.76 |
| γ5 | 4.0106 | 1.79* |
| γ6 | -8.1740 | -2.43** |
| γ7 | 10.1425 | 1.95* |
| γ8 | -7.9949 | -1.61 |
| γ9 | 8.7572 | 2.47** |
0.993
Persistence103d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7420 | 2.84*** |
α ARCH Response to squared shocks | 0.2957 | 7.71*** |
β GARCH Volatility persistence | 0.6976 | 18.54*** |
Spline Coefficients
K=9
| γ1 | -3.5872 | -1.58 |
| γ2 | 4.1667 | 1.28 |
| γ3 | -0.2348 | -0.11 |
| γ4 | -1.6053 | -0.76 |
| γ5 | 4.0106 | 1.79* |
| γ6 | -8.1740 | -2.43** |
| γ7 | 10.1425 | 1.95* |
| γ8 | -7.9949 | -1.61 |
| γ9 | 8.7572 | 2.47** |
Persistence:
0.993
Half-life:
103 days
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