Skip to main content
V-Lab

Amazon.com Inc GARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

42.86%

decreased by 0.32%

1 Week

42.87%

decreased by 0.31%

1 Month

42.92%

decreased by 0.26%

Analysis last updated: Friday, August 14, 2026 at 09:32 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Amazon.com Inc GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 16, 1997 to Aug 14, 2026

Model Insight

With persistence 0.997, volatility shocks have a half-life of 258 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0219
7.71***
α

ARCH

Response to squared shocks

0.0175
19.11***
β

GARCH

Volatility persistence

0.9798
893.21***

Persistence:

0.997

Half-life:

258 days