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V-Lab

CBOE Google Volatility Index EGARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

100.64%

increased by 0.71%

1 Week

112.73%

increased by 12.80%

1 Month

118.51%

increased by 18.58%

Analysis last updated: Friday, September 4, 2026 at 11:33 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE Google Volatility Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 7, 2011 to Aug 28, 2026

Model Insight

Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.0387
4.20***
α

ARCH

Response to squared shocks

0.3834
6.18***
β

GARCH

Volatility persistence

0.4968
4.17***
γ

leverage

Additional response to negative shocks

0.0267
0.41

Persistence:

0.497

Half-life:

1 days