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Tenaris SA Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, August 17th, 2026

1 Day

355.51

decreased by 16.08

1 Week

385.48

increased by 13.89

1 Month

385.98

increased by 14.39

Analysis last updated: Saturday, August 15, 2026 at 10:20 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Tenaris SA ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 17, 2002 to Aug 14, 2026

Model Insight

With persistence 0.997, illiquidity shocks have a half-life of 199 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 249% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.7405
9.00***
α

ARCH

Response to squared shocks

0.0305
15.54***
β

GARCH

Volatility persistence

0.9282
588.94***
γ

leverage

Additional response to negative shocks

0.0758
16.15***

Persistence:

0.997

Half-life:

199 days