Skip to main content
V-Lab

ExxonMobil Holdings Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

26.07%

decreased by 0.94%

1 Week

26.04%

decreased by 0.97%

1 Month

25.94%

decreased by 1.07%

Analysis last updated: Friday, July 24, 2026 at 11:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ExxonMobil Holdings Corp S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 24, 2026

Model Insight

With persistence 0.990, volatility shocks have a half-life of 73 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0161
8.85***
α

ARCH

Response to squared shocks

0.0668
9.71***
β

GARCH

Volatility persistence

0.9237
127.56***
γi Spline Coefficients
K=1
γ10.0000
0.19

Persistence:

0.990

Half-life:

73 days