V-Lab
Tenaris SA Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 29th, 2026
1 Day
205.20
decreased by 0.79
1 Week
213.17
increased by 7.18
1 Month
253.41
increased by 47.42
Analysis last updated: Tuesday, September 29, 2026 at 05:49 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 28, 2021 to Sep 25, 2026Model Insight
Illiquidity shocks decay with a half-life of 42 trading days, meaning a shock loses half its impact after approximately 42 days.
μ
ILLIQ-AMEM Model
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Shock decay: Shocks decay with a 42-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 3.9843 | 2.72*** |
| αARCH | 0.0458 | 1.68* |
| βGARCH | 0.9308 | 50.04*** |
| γleverage | 0.0141 | 0.35 |
0.984
Persistence42d
Half-lifeμ
ILLIQ-AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.9843 | 2.72*** |
α ARCH Response to squared shocks | 0.0458 | 1.68* |
β GARCH Volatility persistence | 0.9308 | 50.04*** |
γ leverage Additional response to negative shocks | 0.0141 | 0.35 |
Persistence:
0.984
Half-life:
42 days
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