Skip to main content
V-Lab

CBOE Google Volatility Index MF2-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 12th, 2026

1 Day

84.58%

decreased by 1.10%

1 Week

94.40%

increased by 8.72%

1 Month

98.43%

increased by 12.75%

Analysis last updated: Wednesday, August 12, 2026 at 11:37 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE Google Volatility Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 7, 2011 to Aug 7, 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

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

66
α

ARCH

Response to squared shocks

0.3391
19.79***
β

GARCH

Volatility persistence

0.1119
6.77***
γ

leverage

Additional response to negative shocks

0.0095
0.31
λ₁

tau intercept

Baseline long-term coefficient

0.7878
0.38
λ₂

forecast adj.

Forecast performance sensitivity

0.0209
0.62
λ₃

tau persistence

Long-term factor persistence

0.9667
16.55***

Persistence:

0.456

Half-life:

1 days