V-Lab
Altria Group Inc EGARCH Volatility Analysis
Volatility prediction for Wednesday, September 9th, 2026
1 Day
28.82%
increased by 0.12%
1 Week
28.96%
increased by 0.26%
1 Month
29.47%
increased by 0.77%
Analysis last updated: Tuesday, September 8, 2026 at 10:51 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 strong leverage effect: negative returns increase next-day volatility 160% more than equivalent positive returns.
σ
EGARCH Model
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Leverage: Negative returns increase volatility 160% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0206 | 3.44*** |
| αARCH | 0.1113 | 7.52*** |
| βGARCH | 0.9868 | 307.12*** |
| γleverage | -0.0494 | -3.95*** |
0.987
Persistence52d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0206 | 3.44*** |
α ARCH Response to squared shocks | 0.1113 | 7.52*** |
β GARCH Volatility persistence | 0.9868 | 307.12*** |
γ leverage Additional response to negative shocks | -0.0494 | -3.95*** |
Persistence:
0.987
Half-life:
52 days
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