V-Lab
Shanghai Yaohua Pilkington Glass Group Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, October 8th, 2026
1 Day
545,944.70
decreased by 6,450.00
1 Month
325,020.16
decreased by 227,374.54
Analysis last updated: Thursday, October 1, 2026 at 07:04 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 13, 1993 to Sep 30, 2026Model Insight
With persistence 0.997, illiquidity shocks have a half-life of 234 trading days (~0.9 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 0.997, shock half-life ~234 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 3.4653 | 2.30** |
| αARCH | 0.2792 | 5.18*** |
| βGARCH | 0.7179 | 13.48*** |
Spline Coefficients
K=10
| γ1 | 0.4364 | 2.65*** |
| γ2 | -1.1971 | -3.91*** |
| γ3 | 1.4267 | 5.26*** |
| γ4 | -1.2163 | -4.99*** |
| γ5 | 0.9005 | 3.13*** |
| γ6 | 0.2164 | 0.28 |
| γ7 | -5.3904 | -1.58 |
| γ8 | 12.9991 | 1.75* |
| γ9 | -12.2764 | -1.80* |
| γ10 | 4.3899 | 1.97** |
0.997
Persistence234d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.4653 | 2.30** |
α ARCH Response to squared shocks | 0.2792 | 5.18*** |
β GARCH Volatility persistence | 0.7179 | 13.48*** |
Spline Coefficients
K=10
| γ1 | 0.4364 | 2.65*** |
| γ2 | -1.1971 | -3.91*** |
| γ3 | 1.4267 | 5.26*** |
| γ4 | -1.2163 | -4.99*** |
| γ5 | 0.9005 | 3.13*** |
| γ6 | 0.2164 | 0.28 |
| γ7 | -5.3904 | -1.58 |
| γ8 | 12.9991 | 1.75* |
| γ9 | -12.2764 | -1.80* |
| γ10 | 4.3899 | 1.97** |
Persistence:
0.997
Half-life:
234 days
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