V-Lab
Tohoku Steel Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 24th, 2026
1 Day
3,193.58
decreased by 313.30
1 Week
3,350.23
decreased by 156.65
1 Month
3,196.19
decreased by 310.69
Analysis last updated: Saturday, September 19, 2026 at 11:07 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 20, 1995 to Sep 18, 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 55 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 | 1.3267 | 3.20*** |
| αARCH | 0.1142 | 8.96*** |
| βGARCH | 0.8734 | 58.76*** |
Spline Coefficients
K=7
| γ1 | -0.4576 | -3.82*** |
| γ2 | 0.7999 | 4.39*** |
| γ3 | -0.5014 | -3.34*** |
| γ4 | 0.0187 | 0.15 |
| γ5 | 0.4747 | 4.99*** |
| γ6 | -0.6076 | -6.01*** |
| γ7 | 0.4495 | 2.87*** |
0.988
Persistence55d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3267 | 3.20*** |
α ARCH Response to squared shocks | 0.1142 | 8.96*** |
β GARCH Volatility persistence | 0.8734 | 58.76*** |
Spline Coefficients
K=7
| γ1 | -0.4576 | -3.82*** |
| γ2 | 0.7999 | 4.39*** |
| γ3 | -0.5014 | -3.34*** |
| γ4 | 0.0187 | 0.15 |
| γ5 | 0.4747 | 4.99*** |
| γ6 | -0.6076 | -6.01*** |
| γ7 | 0.4495 | 2.87*** |
Persistence:
0.988
Half-life:
55 days
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