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V-Lab

S.N.T.G.N. Transgaz S.A. Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, July 28th, 2026

1 Day

3,335.88

increased by 536.57

1 Week

2,818.22

increased by 18.91

1 Month

3,226.90

increased by 427.59

Analysis last updated: Tuesday, July 28, 2026 at 08:20 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S.N.T.G.N.  Transgaz S.A. ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jan 29, 2008 to Jul 24, 2026

Model Insight

This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 6 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8527
8.09***
α

ARCH

Response to squared shocks

0.1277
6.52***
β

GARCH

Volatility persistence

0.7583
19.32***
γi Spline Coefficients
K=10
γ1-0.4790
-1.50
γ20.6267
1.14
γ3-0.7744
-1.96*
γ41.4801
5.00***
γ5-1.4740
-4.94***
γ61.1121
3.55***
γ7-0.8097
-3.22***
γ80.4429
2.28**
γ9-0.1941
-1.25
γ10-0.3524
-1.40

Persistence:

0.886

Half-life:

6 days