Yutaka Trusty Securities Co Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, October 26th, 2026
1 Day
1,166.09
decreased by 177.74
1 Week
1,328.98
decreased by 14.85
1 Month
982.32
decreased by 361.51
Analysis last updated: Sunday, October 25, 2026 at 06:48 AM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Nov 30, 1995 to Oct 23, 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 43 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 | 0.6653 | 4.15*** |
| αARCH | 0.1402 | 12.67*** |
| βGARCH | 0.8438 | 71.46*** |
Spline Coefficients
K=6
| γ1 | -0.3427 | -7.80*** |
| γ2 | 0.5716 | 8.01*** |
| γ3 | -0.4116 | -6.40*** |
| γ4 | 0.2359 | 3.67*** |
| γ5 | 0.0180 | 0.28 |
| γ6 | -0.3016 | -3.51*** |
0.984
Persistence43d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6653 | 4.15*** |
α ARCH Response to squared shocks | 0.1402 | 12.67*** |
β GARCH Volatility persistence | 0.8438 | 71.46*** |
Spline Coefficients
K=6
| γ1 | -0.3427 | -7.80*** |
| γ2 | 0.5716 | 8.01*** |
| γ3 | -0.4116 | -6.40*** |
| γ4 | 0.2359 | 3.67*** |
| γ5 | 0.0180 | 0.28 |
| γ6 | -0.3016 | -3.51*** |
Persistence:
0.984
Half-life:
43 days
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