V-Lab
Sfa Engineering Corp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Wednesday, September 9th, 2026
1 Day
9.74
decreased by 0.66
1 Week
9.81
decreased by 0.59
1 Month
10.94
increased by 0.54
Analysis last updated: Wednesday, September 9, 2026 at 08:07 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 9, 2003 to Sep 4, 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 53 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 | 2.0147 | 9.81*** |
| αARCH | 0.1222 | 15.58*** |
| βGARCH | 0.8649 | 101.54*** |
Spline Coefficients
K=1
| γ1 | 0.0032 | 2.08** |
0.987
Persistence53d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.0147 | 9.81*** |
α ARCH Response to squared shocks | 0.1222 | 15.58*** |
β GARCH Volatility persistence | 0.8649 | 101.54*** |
Spline Coefficients
K=1
| γ1 | 0.0032 | 2.08** |
Persistence:
0.987
Half-life:
53 days
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