V-Lab
Medco Energi Intl Tbk Pt Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 11th, 2026
1 Day
0.23
decreased by 0.05
1 Week
0.26
decreased by 0.02
1 Month
0.37
increased by 0.09
Analysis last updated: Friday, September 11, 2026 at 09:57 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 20, 1995 to Sep 4, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 558 trading days (~2.2 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 ~558 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3646 | 3.80*** |
| αARCH | 0.2295 | 8.66*** |
| βGARCH | 0.7693 | 29.34*** |
Spline Coefficients
K=9
| γ1 | -1.0022 | -4.13*** |
| γ2 | 1.7721 | 4.46*** |
| γ3 | -2.7457 | -6.23*** |
| γ4 | 4.6994 | 7.11*** |
| γ5 | -3.7744 | -6.55*** |
| γ6 | 0.7934 | 2.66*** |
| γ7 | 0.4288 | 2.82*** |
| γ8 | -0.2531 | -2.48** |
| γ9 | 0.1940 | 1.31 |
0.999
Persistence558d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3646 | 3.80*** |
α ARCH Response to squared shocks | 0.2295 | 8.66*** |
β GARCH Volatility persistence | 0.7693 | 29.34*** |
Spline Coefficients
K=9
| γ1 | -1.0022 | -4.13*** |
| γ2 | 1.7721 | 4.46*** |
| γ3 | -2.7457 | -6.23*** |
| γ4 | 4.6994 | 7.11*** |
| γ5 | -3.7744 | -6.55*** |
| γ6 | 0.7934 | 2.66*** |
| γ7 | 0.4288 | 2.82*** |
| γ8 | -0.2531 | -2.48** |
| γ9 | 0.1940 | 1.31 |
Persistence:
0.999
Half-life:
558 days
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