V-Lab
Big Medya Teknoloji AS Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 22nd, 2026
1 Day
20,698.62
increased by 14,958.66
1 Week
5,663.34
decreased by 76.62
1 Month
1,573.17
decreased by 4,166.79
Analysis last updated: Tuesday, September 22, 2026 at 08:46 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Mar 27, 2000 to Sep 18, 2026Model Insight
With persistence 0.995, illiquidity shocks have a half-life of 135 trading days (~0.5 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 0.995, shock half-life ~135 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 70.0397 | 5.84*** |
| αARCH | 0.2308 | 10.80*** |
| βGARCH | 0.7641 | 37.41*** |
Spline Coefficients
K=7
| γ1 | 0.3686 | 0.56 |
| γ2 | -0.9666 | -0.54 |
| γ3 | 3.6108 | 1.41 |
| γ4 | -5.1631 | -2.03** |
| γ5 | 0.8496 | 0.41 |
| γ6 | 4.2145 | 1.41 |
| γ7 | -4.6161 | -1.58 |
0.995
Persistence135d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 70.0397 | 5.84*** |
α ARCH Response to squared shocks | 0.2308 | 10.80*** |
β GARCH Volatility persistence | 0.7641 | 37.41*** |
Spline Coefficients
K=7
| γ1 | 0.3686 | 0.56 |
| γ2 | -0.9666 | -0.54 |
| γ3 | 3.6108 | 1.41 |
| γ4 | -5.1631 | -2.03** |
| γ5 | 0.8496 | 0.41 |
| γ6 | 4.2145 | 1.41 |
| γ7 | -4.6161 | -1.58 |
Persistence:
0.995
Half-life:
135 days
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