V-Lab
Pak Tak International Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Wednesday, September 30th, 2026
1 Day
4,009.36
increased by 96.94
1 Week
4,068.08
increased by 155.66
1 Month
4,297.98
increased by 385.56
Analysis last updated: Wednesday, September 30, 2026 at 07:11 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 2007 to Sep 25, 2026Model Insight
With persistence 0.997, illiquidity shocks have a half-life of 231 trading days (~0.9 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 0.997, shock half-life ~231 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7644 | 2.23** |
| αARCH | 0.2063 | 5.38*** |
| βGARCH | 0.7907 | 23.67*** |
Spline Coefficients
K=10
| γ1 | -20.8030 | -2.32** |
| γ2 | 37.1057 | 2.25** |
| γ3 | -20.6746 | -1.93* |
| γ4 | 4.0353 | 1.18 |
| γ5 | 1.4538 | 1.00 |
| γ6 | -4.1656 | -2.30** |
| γ7 | 6.8561 | 3.65*** |
| γ8 | -10.4249 | -5.76*** |
| γ9 | 13.2829 | 7.83*** |
| γ10 | -11.5522 | -5.53*** |
0.997
Persistence231d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7644 | 2.23** |
α ARCH Response to squared shocks | 0.2063 | 5.38*** |
β GARCH Volatility persistence | 0.7907 | 23.67*** |
Spline Coefficients
K=10
| γ1 | -20.8030 | -2.32** |
| γ2 | 37.1057 | 2.25** |
| γ3 | -20.6746 | -1.93* |
| γ4 | 4.0353 | 1.18 |
| γ5 | 1.4538 | 1.00 |
| γ6 | -4.1656 | -2.30** |
| γ7 | 6.8561 | 3.65*** |
| γ8 | -10.4249 | -5.76*** |
| γ9 | 13.2829 | 7.83*** |
| γ10 | -11.5522 | -5.53*** |
Persistence:
0.997
Half-life:
231 days
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