V-Lab
Trf Ltd Spline ILLIQ Liquidity Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Illiquidity prediction for Monday, September 28th, 2026
1 Day
4,101.18
decreased by 381.24
1 Week
5,009.94
increased by 527.52
1 Month
5,326.43
increased by 844.01
Analysis last updated: Saturday, September 26, 2026 at 08:46 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 26, 1997 to Sep 25, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 99021 trading days (~392.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
High persistence: persistence 1.000, shock half-life ~99021 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0643 | 0.97 |
| αARCH | 0.1548 | 0.10 |
| βGARCH | 0.8452 | 0.57 |
Spline Coefficients
K=2
| γ1 | -0.0288 | -0.12 |
| γ2 | 0.0572 | 0.17 |
1.000
Persistence99021d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0643 | 0.97 |
α ARCH Response to squared shocks | 0.1548 | 0.10 |
β GARCH Volatility persistence | 0.8452 | 0.57 |
Spline Coefficients
K=2
| γ1 | -0.0288 | -0.12 |
| γ2 | 0.0572 | 0.17 |
Persistence:
1.000
Half-life:
99021 days
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