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Tenaris SA ILLIQ-MFMEM Liquidity Analysis

Illiquidity prediction for Monday, September 21st, 2026

1 Day

548.23

decreased by 47.27

1 Week

595.35

decreased by 0.15

1 Month

436.11

decreased by 159.39

Analysis last updated: Saturday, September 19, 2026 at 11:35 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Tenaris SA ILLIQ-MFMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 17, 2002 to Sep 18, 2026

Model 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.

μ

ILLIQ-MFMEM Model

Tap to view equation

High persistence: persistence 0.992, shock half-life ~87 days
ParamValuet-stat
mwindow111
αARCH0.0722
12.84***
βGARCH0.9180
152.04***
γleverage0.0038
0.40
λ₁tau intercept10.0000
1.55
λ₂forecast adj.0.9960
49.61***
λ₃tau persistence0.0000
0.02

0.992

Persistence

87d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-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