V-Lab
Hongmian Zhihui Science And Technology Innovation Co Ltd Guangzhou Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
112.36
decreased by 28.67
1 Week
167.56
increased by 26.53
1 Month
177.69
increased by 36.66
Analysis last updated: Saturday, September 19, 2026 at 07:18 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Nov 8, 1993 to Sep 18, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 718 trading days (~2.8 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 0.999, shock half-life ~718 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0912 | 3.84*** |
| αARCH | 0.2521 | 16.93*** |
| βGARCH | 0.7469 | 50.95*** |
Spline Coefficients
K=7
| γ1 | -0.0767 | -0.80 |
| γ2 | 0.1589 | 1.08 |
| γ3 | 0.0729 | 0.69 |
| γ4 | -0.5909 | -6.24*** |
| γ5 | 0.8258 | 4.10*** |
| γ6 | -0.9373 | -1.67* |
| γ7 | 1.5795 | 1.31 |
0.999
Persistence718d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0912 | 3.84*** |
α ARCH Response to squared shocks | 0.2521 | 16.93*** |
β GARCH Volatility persistence | 0.7469 | 50.95*** |
Spline Coefficients
K=7
| γ1 | -0.0767 | -0.80 |
| γ2 | 0.1589 | 1.08 |
| γ3 | 0.0729 | 0.69 |
| γ4 | -0.5909 | -6.24*** |
| γ5 | 0.8258 | 4.10*** |
| γ6 | -0.9373 | -1.67* |
| γ7 | 1.5795 | 1.31 |
Persistence:
0.999
Half-life:
718 days
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