V-Lab
Til Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
1,228.30
decreased by 113.70
1 Week
1,387.51
increased by 45.51
1 Month
1,055.62
decreased by 286.38
Analysis last updated: Saturday, September 19, 2026 at 10:41 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 5, 2006 to Sep 18, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 517 trading days (~2.0 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 0.999, shock half-life ~517 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 2.0606 | 4.67*** |
| αARCH | 0.3017 | 8.01*** |
| βGARCH | 0.6970 | 18.71*** |
Spline Coefficients
K=9
| γ1 | 0.6789 | 0.84 |
| γ2 | -7.5573 | -7.07*** |
| γ3 | 14.9996 | 3.95*** |
| γ4 | -11.4443 | -3.12*** |
| γ5 | 5.3151 | 1.92* |
| γ6 | -4.6901 | -1.40 |
| γ7 | 12.4248 | 1.59 |
| γ8 | -19.1188 | -1.93* |
| γ9 | 11.8424 | 2.32** |
0.999
Persistence517d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.0606 | 4.67*** |
α ARCH Response to squared shocks | 0.3017 | 8.01*** |
β GARCH Volatility persistence | 0.6970 | 18.71*** |
Spline Coefficients
K=9
| γ1 | 0.6789 | 0.84 |
| γ2 | -7.5573 | -7.07*** |
| γ3 | 14.9996 | 3.95*** |
| γ4 | -11.4443 | -3.12*** |
| γ5 | 5.3151 | 1.92* |
| γ6 | -4.6901 | -1.40 |
| γ7 | 12.4248 | 1.59 |
| γ8 | -19.1188 | -1.93* |
| γ9 | 11.8424 | 2.32** |
Persistence:
0.999
Half-life:
517 days
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