Ferrum Sa Ceramica Y Metallu Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, October 16th, 2026
1 Day
4,380.17
decreased by 411.00
1 Week
4,465.75
decreased by 325.42
1 Month
4,120.97
decreased by 670.20
Analysis last updated: Friday, October 16, 2026 at 06:04 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Aug 26, 1994 to Oct 9, 2026Model Insight
With persistence 0.993, illiquidity shocks have a half-life of 94 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 0.993, shock half-life ~94 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 3.0857 | 2.67*** |
| αARCH | 0.2128 | 15.27*** |
| βGARCH | 0.7798 | 69.48*** |
Spline Coefficients
K=7
| γ1 | -0.4233 | -1.49 |
| γ2 | 0.6978 | 1.70* |
| γ3 | -0.8644 | -3.94*** |
| γ4 | 1.5666 | 7.62*** |
| γ5 | -2.2697 | -5.92*** |
| γ6 | 2.4079 | 3.97*** |
| γ7 | -3.0250 | -4.80*** |
0.993
Persistence94d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.0857 | 2.67*** |
α ARCH Response to squared shocks | 0.2128 | 15.27*** |
β GARCH Volatility persistence | 0.7798 | 69.48*** |
Spline Coefficients
K=7
| γ1 | -0.4233 | -1.49 |
| γ2 | 0.6978 | 1.70* |
| γ3 | -0.8644 | -3.94*** |
| γ4 | 1.5666 | 7.62*** |
| γ5 | -2.2697 | -5.92*** |
| γ6 | 2.4079 | 3.97*** |
| γ7 | -3.0250 | -4.80*** |
Persistence:
0.993
Half-life:
94 days
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