V-Lab
ExxonMobil Holdings Corp Asy. MEM Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
22.91%
increased by 1.16%
1 Week
22.97%
increased by 1.22%
1 Month
23.18%
increased by 1.43%
Analysis last updated: Thursday, September 10, 2026 at 10:04 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 37% more than equivalent positive returns.
μ
AMEM Model
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Leverage: Negative returns increase volatility 37% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0504 | 7.62*** |
| αARCH | 0.1561 | 11.25*** |
| βGARCH | 0.7934 | 75.44*** |
| γleverage | 0.0580 | 2.31** |
0.978
Persistence32d
Half-lifeμ
AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0504 | 7.62*** |
α ARCH Response to squared shocks | 0.1561 | 11.25*** |
β GARCH Volatility persistence | 0.7934 | 75.44*** |
γ leverage Additional response to negative shocks | 0.0580 | 2.31** |
Persistence:
0.978
Half-life:
32 days
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