V-Lab
Nippo Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 17th, 2026
1 Day
10,674.29
increased by 4,805.93
1 Week
4,295.81
decreased by 1,572.55
1 Month
2,327.26
decreased by 3,541.10
Analysis last updated: Thursday, September 17, 2026 at 08:01 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Aug 10, 1994 to Sep 14, 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 46 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 | 1.1780 | 4.19*** |
| αARCH | 0.1730 | 12.70*** |
| βGARCH | 0.8119 | 65.33*** |
Spline Coefficients
K=8
| γ1 | 0.1357 | 1.77* |
| γ2 | -0.4286 | -3.67*** |
| γ3 | 0.6086 | 8.40*** |
| γ4 | -0.4605 | -5.73*** |
| γ5 | 0.0048 | 0.05 |
| γ6 | 0.3307 | 3.54*** |
| γ7 | -0.2266 | -2.55** |
| γ8 | -0.0191 | -0.22 |
0.985
Persistence46d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1780 | 4.19*** |
α ARCH Response to squared shocks | 0.1730 | 12.70*** |
β GARCH Volatility persistence | 0.8119 | 65.33*** |
Spline Coefficients
K=8
| γ1 | 0.1357 | 1.77* |
| γ2 | -0.4286 | -3.67*** |
| γ3 | 0.6086 | 8.40*** |
| γ4 | -0.4605 | -5.73*** |
| γ5 | 0.0048 | 0.05 |
| γ6 | 0.3307 | 3.54*** |
| γ7 | -0.2266 | -2.55** |
| γ8 | -0.0191 | -0.22 |
Persistence:
0.985
Half-life:
46 days
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