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 Thursday, October 29th, 2026
1 Day
248.76
decreased by 26.76
1 Week
246.80
decreased by 28.72
1 Month
186.32
decreased by 89.20
Analysis last updated: Thursday, October 29, 2026 at 11:37 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 23, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 138629 trading days (~550.1 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 ~138629 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7402 | 0.12 |
| αARCH | 0.1399 | 0.02 |
| βGARCH | 0.8601 | 0.12 |
Spline Coefficients
K=4
| γ1 | -0.4965 | -0.01 |
| γ2 | 0.6834 | 0.01 |
| γ3 | -0.3206 | -0.01 |
| γ4 | 0.3219 | 0.02 |
1.000
Persistence138629d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7402 | 0.12 |
α ARCH Response to squared shocks | 0.1399 | 0.02 |
β GARCH Volatility persistence | 0.8601 | 0.12 |
Spline Coefficients
K=4
| γ1 | -0.4965 | -0.01 |
| γ2 | 0.6834 | 0.01 |
| γ3 | -0.3206 | -0.01 |
| γ4 | 0.3219 | 0.02 |
Persistence:
1.000
Half-life:
138629 days
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