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V-Lab

ExxonMobil Holdings Corp GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

24.32%

decreased by 0.72%

1 Week

24.33%

decreased by 0.71%

1 Month

24.36%

decreased by 0.68%

Analysis last updated: Thursday, September 10, 2026 at 10:04 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ExxonMobil Holdings Corp GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 4, 2026

Model Insight

With persistence 0.990, volatility shocks have a half-life of 72 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GARCH Model

Tap to view equation

High persistence: persistence 0.990, shock half-life ~72 days
ParamValuet-stat
ωconst0.0232
5.14***
αARCH0.0664
9.73***
βGARCH0.9240
129.15***

0.990

Persistence

72d

Half-life
σ

GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0232
5.14***
α

ARCH

Response to squared shocks

0.0664
9.73***
β

GARCH

Volatility persistence

0.9240
129.15***

Persistence:

0.990

Half-life:

72 days