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Coca-Cola Co/The MEM Volatility Analysis

Volatility prediction for Monday, September 28th, 2026

1 Day

15.43%

decreased by 0.74%

1 Week

15.65%

decreased by 0.52%

1 Month

16.45%

increased by 0.28%

Analysis last updated: Saturday, September 26, 2026 at 12:23 AM UTC

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graph of Coca-Cola Co/The MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 25, 2026

Model Insight

Volatility shocks decay with a half-life of 55 trading days, meaning a shock loses half its impact after approximately 55 days.

μ

MEM Model

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Shock decay: Shocks decay with a 55-day half-life
ParamValuet-stat
ωconst0.0256
1.67*
αARCH0.1573
11.24***
βGARCH0.8302
86.06***

0.988

Persistence

55d

Half-life
μ

MEM Model

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ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0256
1.67*
α

ARCH

Response to squared shocks

0.1573
11.24***
β

GARCH

Volatility persistence

0.8302
86.06***

Persistence:

0.988

Half-life:

55 days