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V-Lab

Sequoia Logistica E Transpor GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

141.93%

decreased by 6.19%

1 Week

141.81%

decreased by 6.31%

1 Month

141.33%

decreased by 6.79%

Analysis last updated: Sunday, August 23, 2026 at 03:40 AM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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graph of Sequoia Logistica E Transpor GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 7, 2020 to Aug 21, 2026
Boundary Parameters

Model Insight

With persistence 0.999, volatility shocks have a half-life of 693 trading days (~2.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.71 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

12.0614
12.88***
α

ARCH

Response to squared shocks

0.0384
44.77***
β

GARCH

Volatility persistence

0.9990
658.10***
ν

DF

Student-t tail thickness

2.7120
87.14***

Persistence:

0.999

Half-life:

693 days