V-Lab
Amazon.com Inc GARCH Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
44.29%
decreased by 0.36%
1 Week
44.30%
decreased by 0.35%
1 Month
44.32%
decreased by 0.33%
Analysis last updated: Friday, August 7, 2026 at 09:33 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 16, 1997 to Aug 7, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 256 trading days (~1.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0222 | 7.76*** |
α ARCH Response to squared shocks | 0.0176 | 19.16*** |
β GARCH Volatility persistence | 0.9797 | 887.37*** |
Persistence:
0.997
Half-life:
256 days
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