V-Lab
Indonesia Prima Prop (Pt) Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, October 6th, 2026
1 Day
9,372.26
increased by 6,193.30
1 Week
3,937.31
increased by 758.35
1 Month
2,834.69
decreased by 344.27
Analysis last updated: Tuesday, October 6, 2026 at 08:47 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Aug 19, 1994 to Oct 2, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 315 trading days (~1.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 0.998, shock half-life ~315 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.5638 | 1.26 |
| αARCH | 0.2648 | 7.57*** |
| βGARCH | 0.7330 | 20.94*** |
Spline Coefficients
K=10
| γ1 | -12.0131 | -2.23** |
| γ2 | 19.4533 | 2.39** |
| γ3 | -10.4439 | -1.56 |
| γ4 | -2.0231 | -0.26 |
| γ5 | 14.0512 | 2.26** |
| γ6 | -19.5570 | -4.92*** |
| γ7 | 18.8724 | 5.72*** |
| γ8 | -9.6122 | -2.10** |
| γ9 | -2.3188 | -0.41 |
| γ10 | -2.2403 | -0.31 |
0.998
Persistence315d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5638 | 1.26 |
α ARCH Response to squared shocks | 0.2648 | 7.57*** |
β GARCH Volatility persistence | 0.7330 | 20.94*** |
Spline Coefficients
K=10
| γ1 | -12.0131 | -2.23** |
| γ2 | 19.4533 | 2.39** |
| γ3 | -10.4439 | -1.56 |
| γ4 | -2.0231 | -0.26 |
| γ5 | 14.0512 | 2.26** |
| γ6 | -19.5570 | -4.92*** |
| γ7 | 18.8724 | 5.72*** |
| γ8 | -9.6122 | -2.10** |
| γ9 | -2.3188 | -0.41 |
| γ10 | -2.2403 | -0.31 |
Persistence:
0.998
Half-life:
315 days
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