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V-Lab

Coca-Cola Co/The GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

19.29%

decreased by 0.43%

1 Week

19.38%

decreased by 0.34%

1 Month

19.71%

decreased by 0.01%

Analysis last updated: Friday, August 21, 2026 at 10:51 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Coca-Cola Co/The GJR-GARCH

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

With persistence 0.994, volatility shocks have a half-life of 122 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 213% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0151
16.73***
α

ARCH

Response to squared shocks

0.0264
15.37***
β

GARCH

Volatility persistence

0.9398
504.97***
γ

leverage

Additional response to negative shocks

0.0563
14.73***

Persistence:

0.994

Half-life:

122 days