V-Lab
Supra Boga Lestari Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 22nd, 2026
1 Day
1,293.08
decreased by 425.25
1 Week
1,468.25
decreased by 250.08
1 Month
792.29
decreased by 926.04
Analysis last updated: Tuesday, September 22, 2026 at 08:55 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 7, 2012 to Sep 18, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 3269 trading days (~13.0 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 ~3269 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8109 | 5.14*** |
| αARCH | 0.2942 | 3.74*** |
| βGARCH | 0.7056 | 8.97*** |
Spline Coefficients
K=9
| γ1 | 2.4690 | 1.69* |
| γ2 | -4.0049 | -2.04** |
| γ3 | 0.7216 | 0.99 |
| γ4 | 2.5365 | 4.20*** |
| γ5 | -5.8888 | -7.54*** |
| γ6 | 8.7436 | 13.17*** |
| γ7 | -5.2109 | -8.07*** |
| γ8 | -1.5251 | -2.47** |
| γ9 | 3.9275 | 2.80*** |
1.000
Persistence3269d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8109 | 5.14*** |
α ARCH Response to squared shocks | 0.2942 | 3.74*** |
β GARCH Volatility persistence | 0.7056 | 8.97*** |
Spline Coefficients
K=9
| γ1 | 2.4690 | 1.69* |
| γ2 | -4.0049 | -2.04** |
| γ3 | 0.7216 | 0.99 |
| γ4 | 2.5365 | 4.20*** |
| γ5 | -5.8888 | -7.54*** |
| γ6 | 8.7436 | 13.17*** |
| γ7 | -5.2109 | -8.07*** |
| γ8 | -1.5251 | -2.47** |
| γ9 | 3.9275 | 2.80*** |
Persistence:
1.000
Half-life:
3269 days
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