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V-Lab

ExxonMobil Holdings Corp Asy. Power MEM Volatility Analysis

Volatility prediction for Tuesday, July 21st, 2026

1 Day

22.87%

decreased by 0.29%

1 Week

21.72%

decreased by 1.44%

1 Month

18.59%

decreased by 4.57%

Analysis last updated: Monday, July 20, 2026 at 09:54 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ExxonMobil Holdings Corp APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 17, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 21% more than equivalent positive returns. The volatility power δ = 1.00 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0440
29.26***
α

ARCH

Response to squared shocks

0.2040
76.20***
β

GARCH

Volatility persistence

0.7796
268.08***
γ

leverage

Additional response to negative shocks

0.0946
20.51***
δ

power

Transformation power

1.0020
22.86***

Persistence:

0.942

Half-life:

12 days