Oriental System Technology Spline ILLIQ Liquidity Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Illiquidity prediction for Thursday, October 29th, 2026
1 Day
21,726.40
increased by 15,785.26
1 Week
10,420.69
increased by 4,479.55
1 Month
4,190.49
decreased by 1,750.65
Analysis last updated: Friday, October 30, 2026 at 12:41 AM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Feb 16, 2021 to Oct 27, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 33007 trading days (~131.0 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 1.000, shock half-life ~33007 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.1972 | 0.63 |
| αARCH | 0.5854 | 0.02 |
| βGARCH | 0.4146 | 0.01 |
Spline Coefficients
K=9
| γ1 | 8.7901 | 0.14 |
| γ2 | -10.1904 | -0.05 |
| γ3 | -20.2308 | -0.09 |
| γ4 | 52.2981 | 0.19 |
| γ5 | -120.2118 | -0.07 |
| γ6 | 159.2845 | 0.06 |
| γ7 | 16.3096 | 0.01 |
| γ8 | -199.3075 | -0.04 |
| γ9 | 161.4629 | 0.04 |
1.000
Persistence33007d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1972 | 0.63 |
α ARCH Response to squared shocks | 0.5854 | 0.02 |
β GARCH Volatility persistence | 0.4146 | 0.01 |
Spline Coefficients
K=9
| γ1 | 8.7901 | 0.14 |
| γ2 | -10.1904 | -0.05 |
| γ3 | -20.2308 | -0.09 |
| γ4 | 52.2981 | 0.19 |
| γ5 | -120.2118 | -0.07 |
| γ6 | 159.2845 | 0.06 |
| γ7 | 16.3096 | 0.01 |
| γ8 | -199.3075 | -0.04 |
| γ9 | 161.4629 | 0.04 |
Persistence:
1.000
Half-life:
33007 days
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