V-Lab
Altria Group Inc GARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
29.29%
decreased by 0.98%
1 Week
29.27%
decreased by 1.00%
1 Month
29.20%
decreased by 1.07%
Analysis last updated: Thursday, September 3, 2026 at 09:49 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 28, 2026Model Insight
Volatility shocks decay with a half-life of 66 trading days, meaning a shock loses half its impact after approximately 66 days.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0333 | 3.60*** |
α ARCH Response to squared shocks | 0.0626 | 6.99*** |
β GARCH Volatility persistence | 0.9270 | 86.57*** |
Persistence:
0.990
Half-life:
66 days
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