V-Lab
Yukselen Celik Anonim Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 18th, 2026
1 Day
9,811.36
increased by 8,780.59
1 Week
2,754.82
increased by 1,724.05
1 Month
1,085.14
increased by 54.37
Analysis last updated: Friday, September 18, 2026 at 09:20 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Nov 14, 2019 to Sep 14, 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 13 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 | 2.1472 | 9.31*** |
| αARCH | 0.1881 | 8.80*** |
| βGARCH | 0.7588 | 26.79*** |
Spline Coefficients
K=1
| γ1 | -0.0073 | -0.44 |
0.947
Persistence13d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.1472 | 9.31*** |
α ARCH Response to squared shocks | 0.1881 | 8.80*** |
β GARCH Volatility persistence | 0.7588 | 26.79*** |
Spline Coefficients
K=1
| γ1 | -0.0073 | -0.44 |
Persistence:
0.947
Half-life:
13 days
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