V-Lab
Koei Chem Co Ltd Spline ILLIQ Liquidity Analysis
Inactive
Last recorded values (Thursday, July 30th, 2026):
1 Day
1,065.45
1 Week
1,015.06
1 Month
913.68
Analysis last updated: Wednesday, September 2, 2026 at 05:07 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Nov 3, 1997 to Jul 29, 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 41 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9316 | 3.28*** |
| αARCH | 0.1331 | 12.45*** |
| βGARCH | 0.8501 | 74.92*** |
Spline Coefficients
K=7
| γ1 | -0.6689 | -6.97*** |
| γ2 | 1.0648 | 8.26*** |
| γ3 | -0.6166 | -7.99*** |
| γ4 | 0.1572 | 1.91* |
| γ5 | 0.2018 | 2.54** |
| γ6 | -0.0566 | -0.75 |
| γ7 | -0.2668 | -2.44** |
0.983
Persistence41d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9316 | 3.28*** |
α ARCH Response to squared shocks | 0.1331 | 12.45*** |
β GARCH Volatility persistence | 0.8501 | 74.92*** |
Spline Coefficients
K=7
| γ1 | -0.6689 | -6.97*** |
| γ2 | 1.0648 | 8.26*** |
| γ3 | -0.6166 | -7.99*** |
| γ4 | 0.1572 | 1.91* |
| γ5 | 0.2018 | 2.54** |
| γ6 | -0.0566 | -0.75 |
| γ7 | -0.2668 | -2.44** |
Persistence:
0.983
Half-life:
41 days
Other Koei Chem Co Ltd Analyses
Other Spline ILLIQ Analyses on International Equities