V-Lab
Chevron Corp Asy. MEM Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
21.18%
increased by 0.78%
1 Week
21.41%
increased by 1.01%
1 Month
22.13%
increased by 1.73%
Analysis last updated: Thursday, October 1, 2026 at 11:06 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 25, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 45% more than equivalent positive returns.
μ
AMEM Model
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Leverage: Negative returns increase volatility 45% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0797 | 9.04*** |
| αARCH | 0.1596 | 10.33*** |
| βGARCH | 0.7709 | 66.01*** |
| γleverage | 0.0719 | 2.61*** |
0.966
Persistence20d
Half-lifeμ
AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0797 | 9.04*** |
α ARCH Response to squared shocks | 0.1596 | 10.33*** |
β GARCH Volatility persistence | 0.7709 | 66.01*** |
γ leverage Additional response to negative shocks | 0.0719 | 2.61*** |
Persistence:
0.966
Half-life:
20 days
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