V-Lab
Altria Group Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
25.59%
decreased by 0.45%
1 Week
25.64%
decreased by 0.40%
1 Month
25.83%
decreased by 0.21%
Analysis last updated: Friday, July 24, 2026 at 10:44 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Jul 24, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 98% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0335 | 16.73*** |
α ARCH Response to squared shocks | 0.0393 | 16.25*** |
β GARCH Volatility persistence | 0.9307 | 385.68*** |
γ leverage Additional response to negative shocks | 0.0383 | 8.82*** |
Persistence:
0.989
Half-life:
63 days
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