V-Lab
Tenaris SA ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
548.23
1 Week
595.35
1 Month
436.11
Analysis last updated: Saturday, September 19, 2026 at 11:35 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 17, 2002 to Sep 18, 2026Model Insight
With persistence 0.992, illiquidity shocks have a half-life of 87 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.
ILLIQ-MFMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 111 | |
| αARCH | 0.0722 | 12.84*** |
| βGARCH | 0.9180 | 152.04*** |
| γleverage | 0.0038 | 0.40 |
| λ₁tau intercept | 10.0000 | 1.55 |
| λ₂forecast adj. | 0.9960 | 49.61*** |
| λ₃tau persistence | 0.0000 | 0.02 |
0.992
Persistence87d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 111 | |
α ARCH Response to squared shocks | 0.0722 | 12.84*** |
β GARCH Volatility persistence | 0.9180 | 152.04*** |
γ leverage Additional response to negative shocks | 0.0038 | 0.40 |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 1.55 |
λ₂ forecast adj. Forecast performance sensitivity | 0.9960 | 49.61*** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.02 |
Persistence:
0.992
Half-life:
87 days
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