V-Lab
Sheh Fung Screws Co Ltd 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, September 17th, 2026
1 Day
6,458.54
increased by 586.08
1 Week
4,963.82
decreased by 908.64
1 Month
5,260.14
decreased by 612.32
Analysis last updated: Thursday, September 17, 2026 at 08:59 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 27, 2012 to Sep 14, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 231049 trading days (~916.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
High persistence: persistence 1.000, shock half-life ~231049 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8266 | |
| αARCH | 0.2263 | |
| βGARCH | 0.7737 |
Spline Coefficients
K=10
| γ1 | -28.9236 | |
| γ2 | 46.0535 | |
| γ3 | -26.4632 | |
| γ4 | 13.3031 | |
| γ5 | -4.7036 | |
| γ6 | 0.7842 | |
| γ7 | -0.4375 | |
| γ8 | 0.9645 | |
| γ9 | -0.1737 | |
| γ10 | -1.8617 |
1.000
Persistence231049d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8266 | |
α ARCH Response to squared shocks | 0.2263 | |
β GARCH Volatility persistence | 0.7737 |
Spline Coefficients
K=10
| γ1 | -28.9236 | |
| γ2 | 46.0535 | |
| γ3 | -26.4632 | |
| γ4 | 13.3031 | |
| γ5 | -4.7036 | |
| γ6 | 0.7842 | |
| γ7 | -0.4375 | |
| γ8 | 0.9645 | |
| γ9 | -0.1737 | |
| γ10 | -1.8617 |
Persistence:
1.000
Half-life:
231049 days
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