V-Lab
CITIC Securities Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 11th, 2026
1 Day
3.02
increased by 0.17
1 Week
3.13
increased by 0.28
1 Month
2.59
decreased by 0.26
Analysis last updated: Friday, September 11, 2026 at 06:13 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 6, 2003 to Sep 4, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 2280 trading days (~9.0 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 ~2280 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0624 | 3.96*** |
| αARCH | 0.2028 | 24.98*** |
| βGARCH | 0.7969 | 103.04*** |
Spline Coefficients
K=5
| γ1 | 0.1405 | 0.58 |
| γ2 | -0.5193 | -1.76* |
| γ3 | 0.6156 | 5.87*** |
| γ4 | -0.2425 | -2.46** |
| γ5 | -0.0578 | -0.56 |
1.000
Persistence2280d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0624 | 3.96*** |
α ARCH Response to squared shocks | 0.2028 | 24.98*** |
β GARCH Volatility persistence | 0.7969 | 103.04*** |
Spline Coefficients
K=5
| γ1 | 0.1405 | 0.58 |
| γ2 | -0.5193 | -1.76* |
| γ3 | 0.6156 | 5.87*** |
| γ4 | -0.2425 | -2.46** |
| γ5 | -0.0578 | -0.56 |
Persistence:
1.000
Half-life:
2280 days
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