V-Lab
Nihon Kogyo Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 24th, 2026
1 Day
2,258.85
increased by 243.34
1 Week
2,137.18
increased by 121.67
1 Month
2,797.23
increased by 781.72
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 61 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 | 0.7070 | 4.13*** |
| αARCH | 0.1009 | 11.45*** |
| βGARCH | 0.8878 | 86.93*** |
Spline Coefficients
K=10
| γ1 | 0.0097 | 0.07 |
| γ2 | -0.0080 | -0.04 |
| γ3 | -0.6249 | -2.24** |
| γ4 | 1.6587 | 4.54*** |
| γ5 | -1.7298 | -6.10*** |
| γ6 | 0.8729 | 5.06*** |
| γ7 | -0.3159 | -1.68* |
| γ8 | 0.4886 | 1.90* |
| γ9 | -0.7821 | -2.57** |
| γ10 | 0.7303 | 1.98** |
0.989
Persistence61d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7070 | 4.13*** |
α ARCH Response to squared shocks | 0.1009 | 11.45*** |
β GARCH Volatility persistence | 0.8878 | 86.93*** |
Spline Coefficients
K=10
| γ1 | 0.0097 | 0.07 |
| γ2 | -0.0080 | -0.04 |
| γ3 | -0.6249 | -2.24** |
| γ4 | 1.6587 | 4.54*** |
| γ5 | -1.7298 | -6.10*** |
| γ6 | 0.8729 | 5.06*** |
| γ7 | -0.3159 | -1.68* |
| γ8 | 0.4886 | 1.90* |
| γ9 | -0.7821 | -2.57** |
| γ10 | 0.7303 | 1.98** |
Persistence:
0.989
Half-life:
61 days
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