V-Lab
Shanghai Electric Power 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, August 27th, 2026
1 Day
25.13
decreased by 5.39
1 Week
25.36
decreased by 5.16
1 Month
26.84
decreased by 3.68
Analysis last updated: Thursday, August 27, 2026 at 06:11 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 29, 2003 to Aug 21, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 99021 trading days (~392.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4290 | 0.01 |
α ARCH Response to squared shocks | 0.2479 | 0.00 |
β GARCH Volatility persistence | 0.7521 | 0.00 |
Spline Coefficients
K=5
| γ1 | -0.1164 | 0.00 |
| γ2 | -0.3449 | 0.00 |
| γ3 | 0.8692 | 0.05 |
| γ4 | -0.6398 | -0.15 |
| γ5 | 0.4496 | 0.03 |
Persistence:
1.000
Half-life:
99021 days
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