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V-Lab

Chevron Corp GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

19.58%

decreased by 0.05%

1 Week

19.78%

increased by 0.15%

1 Month

20.48%

increased by 0.85%

Analysis last updated: Monday, September 14, 2026 at 09:46 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Chevron Corp GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 178% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 178% more than positive returns
ParamValuet-stat
ωconst0.0421
5.16***
αARCH0.0341
4.14***
βGARCH0.9182
114.44***
γleverage0.0609
3.22***

0.983

Persistence

40d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0421
5.16***
α

ARCH

Response to squared shocks

0.0341
4.14***
β

GARCH

Volatility persistence

0.9182
114.44***
γ

leverage

Additional response to negative shocks

0.0609
3.22***

Persistence:

0.983

Half-life:

40 days