Daewon Sanup Co Ltd 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 Monday, October 12th, 2026
1 Day
135.73
decreased by 5.15
1 Week
145.04
increased by 4.16
1 Month
230.78
increased by 89.90
Analysis last updated: Friday, October 9, 2026 at 10:43 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 16, 2007 to Oct 8, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 99021 trading days (~392.9 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 1.000, shock half-life ~99021 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7392 | 0.42 |
| αARCH | 0.1398 | 0.07 |
| βGARCH | 0.8602 | 0.43 |
Spline Coefficients
K=4
| γ1 | -0.4808 | -0.02 |
| γ2 | 0.6684 | 0.03 |
| γ3 | -0.3319 | -0.05 |
| γ4 | 0.3427 | 0.07 |
1.000
Persistence99021d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7392 | 0.42 |
α ARCH Response to squared shocks | 0.1398 | 0.07 |
β GARCH Volatility persistence | 0.8602 | 0.43 |
Spline Coefficients
K=4
| γ1 | -0.4808 | -0.02 |
| γ2 | 0.6684 | 0.03 |
| γ3 | -0.3319 | -0.05 |
| γ4 | 0.3427 | 0.07 |
Persistence:
1.000
Half-life:
99021 days
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