V-Lab
Trend Gyo As 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 Tuesday, September 22nd, 2026
1 Day
18,271.24
increased by 14,136.99
1 Week
5,487.18
increased by 1,352.93
1 Month
2,375.56
decreased by 1,758.69
Analysis last updated: Tuesday, September 22, 2026 at 08:43 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Feb 23, 2018 to Sep 18, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 138629 trading days (~550.1 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 ~138629 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6911 | 0.68 |
| αARCH | 0.2368 | 0.02 |
| βGARCH | 0.7632 | 0.05 |
Spline Coefficients
K=2
| γ1 | -0.5902 | -0.01 |
| γ2 | 0.7860 | 0.01 |
1.000
Persistence138629d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6911 | 0.68 |
α ARCH Response to squared shocks | 0.2368 | 0.02 |
β GARCH Volatility persistence | 0.7632 | 0.05 |
Spline Coefficients
K=2
| γ1 | -0.5902 | -0.01 |
| γ2 | 0.7860 | 0.01 |
Persistence:
1.000
Half-life:
138629 days
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