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Coca-Cola Co/The GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, October 26th, 2026

1 Day

22.66%

increased by 2.42%

1 Week

22.68%

increased by 2.44%

1 Month

22.75%

increased by 2.51%

Analysis last updated: Friday, October 23, 2026 at 11:27 PM UTC

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Date Range:

from

10/23/2024

to

10/23/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Coca-Cola Co/The 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 Oct 23, 2026

Model Insight

With persistence 0.996, volatility shocks have a half-life of 163 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 5.99 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.996, shock half-life ~163 daysv = 5.99 · fat tails
ParamValuet-stat
ωlong-run2.4455
1.12
αscore0.0593
13.07***
βpersistence0.9958
272.59***
νDF5.9948
2.88***

0.996

Persistence

163d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

2.4455
1.12
α

score

Weight on the scaled score

0.0593
13.07***
β

persistence

Volatility persistence

0.9958
272.59***
ν

DF

Student-t tail thickness

5.9948
2.88***

Persistence:

0.996

Half-life:

163 days