V-Lab
PT Super Energy TBK Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 24th, 2026
1 Day
13,615.86
increased by 4,803.77
1 Week
8,724.37
decreased by 87.72
1 Month
4,654.11
decreased by 4,157.98
Analysis last updated: Thursday, September 24, 2026 at 08:49 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 5, 2018 to Sep 22, 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 51 trading days.
μ
ILLIQ-SMEM Model
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Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3761 | 1.40 |
| αARCH | 0.2513 | 5.02*** |
| βGARCH | 0.7351 | 14.29*** |
Spline Coefficients
K=9
| γ1 | 6.1386 | 1.11 |
| γ2 | -10.7608 | -1.31 |
| γ3 | 9.7998 | 1.73* |
| γ4 | -4.8874 | -0.65 |
| γ5 | -22.9580 | -1.83* |
| γ6 | 59.1271 | 3.76*** |
| γ7 | -60.1862 | -4.73*** |
| γ8 | 34.3298 | 5.00*** |
| γ9 | -16.3220 | -2.28** |
0.986
Persistence51d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3761 | 1.40 |
α ARCH Response to squared shocks | 0.2513 | 5.02*** |
β GARCH Volatility persistence | 0.7351 | 14.29*** |
Spline Coefficients
K=9
| γ1 | 6.1386 | 1.11 |
| γ2 | -10.7608 | -1.31 |
| γ3 | 9.7998 | 1.73* |
| γ4 | -4.8874 | -0.65 |
| γ5 | -22.9580 | -1.83* |
| γ6 | 59.1271 | 3.76*** |
| γ7 | -60.1862 | -4.73*** |
| γ8 | 34.3298 | 5.00*** |
| γ9 | -16.3220 | -2.28** |
Persistence:
0.986
Half-life:
51 days
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