V-Lab
Tsi Co., Ltd. Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, October 6th, 2026
1 Day
257.17
decreased by 22.01
1 Week
267.88
decreased by 11.30
1 Month
179.91
decreased by 99.27
Analysis last updated: Saturday, October 3, 2026 at 09:30 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 30, 2017 to Oct 2, 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 44 trading days.
μ
ILLIQ-SMEM Model
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Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 2.6036 | 2.95*** |
| αARCH | 0.2267 | 6.30*** |
| βGARCH | 0.7576 | 23.50*** |
Spline Coefficients
K=10
| γ1 | 3.3382 | 0.66 |
| γ2 | -26.2278 | -2.61*** |
| γ3 | 49.8233 | 6.13*** |
| γ4 | -32.8660 | -7.07*** |
| γ5 | 3.0417 | 0.69 |
| γ6 | 5.6054 | 1.78* |
| γ7 | -2.6472 | -1.03 |
| γ8 | -2.4087 | -0.85 |
| γ9 | 3.2127 | 1.11 |
| γ10 | 2.6708 | 0.78 |
0.984
Persistence44d
Half-lifeμ
ILLIQ-SMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.6036 | 2.95*** |
α ARCH Response to squared shocks | 0.2267 | 6.30*** |
β GARCH Volatility persistence | 0.7576 | 23.50*** |
Spline Coefficients
K=10
| γ1 | 3.3382 | 0.66 |
| γ2 | -26.2278 | -2.61*** |
| γ3 | 49.8233 | 6.13*** |
| γ4 | -32.8660 | -7.07*** |
| γ5 | 3.0417 | 0.69 |
| γ6 | 5.6054 | 1.78* |
| γ7 | -2.6472 | -1.03 |
| γ8 | -2.4087 | -0.85 |
| γ9 | 3.2127 | 1.11 |
| γ10 | 2.6708 | 0.78 |
Persistence:
0.984
Half-life:
44 days
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