V-Lab
Ecomic Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 24th, 2026
1 Day
4,847.86
decreased by 352.50
1 Week
5,024.11
decreased by 176.25
1 Month
4,789.33
decreased by 411.03
Analysis last updated: Saturday, September 19, 2026 at 10:51 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 5, 2006 to Sep 18, 2026Model Insight
This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 23 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.5140 | 6.67*** |
| αARCH | 0.1480 | 11.06*** |
| βGARCH | 0.8229 | 53.91*** |
Spline Coefficients
K=8
| γ1 | -1.1756 | -3.96*** |
| γ2 | 1.2009 | 2.43** |
| γ3 | 0.0603 | 0.13 |
| γ4 | -0.6460 | -1.44 |
| γ5 | 1.6151 | 4.81*** |
| γ6 | -1.9959 | -4.60*** |
| γ7 | 1.5048 | 2.22** |
| γ8 | -0.6285 | -0.83 |
0.971
Persistence23d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5140 | 6.67*** |
α ARCH Response to squared shocks | 0.1480 | 11.06*** |
β GARCH Volatility persistence | 0.8229 | 53.91*** |
Spline Coefficients
K=8
| γ1 | -1.1756 | -3.96*** |
| γ2 | 1.2009 | 2.43** |
| γ3 | 0.0603 | 0.13 |
| γ4 | -0.6460 | -1.44 |
| γ5 | 1.6151 | 4.81*** |
| γ6 | -1.9959 | -4.60*** |
| γ7 | 1.5048 | 2.22** |
| γ8 | -0.6285 | -0.83 |
Persistence:
0.971
Half-life:
23 days
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