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V-Lab

Sequoia Logistica E Transpor GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

163.22%

decreased by 7.35%

1 Week

163.07%

decreased by 7.50%

1 Month

162.49%

decreased by 8.08%

Analysis last updated: Sunday, July 26, 2026 at 06:53 AM UTC

Date Range:

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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 Jul 24, 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 = 2.82 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

10.9939
12.30***
α

ARCH

Response to squared shocks

0.0404
44.04***
β

GARCH

Volatility persistence

0.9990
570.53***
ν

DF

Student-t tail thickness

2.8184
67.70***

Persistence:

0.999

Half-life:

693 days