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Info Yatirim As 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 21st, 2026
1 Day
12,903.86
increased by 11,050.06
1 Week
3,218.31
increased by 1,364.51
1 Month
945.77
decreased by 908.03
Analysis last updated: Sunday, September 20, 2026 at 02:17 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 27, 2011 to Sep 18, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 14146 trading days (~56.1 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 ~14146 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8320 | 4.10*** |
| αARCH | 0.3144 | 1.67* |
| βGARCH | 0.6855 | 3.64*** |
Spline Coefficients
K=9
| γ1 | -1.9836 | -2.69*** |
| γ2 | 2.5569 | 2.52** |
| γ3 | -1.7571 | -1.92* |
| γ4 | -6.2623 | -0.43 |
| γ5 | 24.7436 | 0.57 |
| γ6 | -30.1373 | -0.61 |
| γ7 | 19.0231 | 0.67 |
| γ8 | -9.5708 | -0.79 |
| γ9 | 5.1096 | 1.15 |
1.000
Persistence14146d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8320 | 4.10*** |
α ARCH Response to squared shocks | 0.3144 | 1.67* |
β GARCH Volatility persistence | 0.6855 | 3.64*** |
Spline Coefficients
K=9
| γ1 | -1.9836 | -2.69*** |
| γ2 | 2.5569 | 2.52** |
| γ3 | -1.7571 | -1.92* |
| γ4 | -6.2623 | -0.43 |
| γ5 | 24.7436 | 0.57 |
| γ6 | -30.1373 | -0.61 |
| γ7 | 19.0231 | 0.67 |
| γ8 | -9.5708 | -0.79 |
| γ9 | 5.1096 | 1.15 |
Persistence:
1.000
Half-life:
14146 days
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