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V-Lab

Altria Group Inc GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

29.42%

decreased by 0.27%

1 Week

29.37%

decreased by 0.32%

1 Month

29.20%

decreased by 0.49%

Analysis last updated: Friday, August 21, 2026 at 10:56 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Altria Group Inc GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 66 trading days, meaning a shock loses half its impact after approximately 66 days. Returns follow a Student-t distribution with v = 4.57 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

2.9215
3.94***
α

ARCH

Response to squared shocks

0.0711
34.98***
β

GARCH

Volatility persistence

0.9895
379.26***
ν

DF

Student-t tail thickness

4.5672
11.33***

Persistence:

0.989

Half-life:

66 days