Skip to main content
V-Lab
V-Lab

CBOE Volatility Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

108.35%

increased by 12.68%

1 Week

107.29%

increased by 11.62%

1 Month

105.09%

increased by 9.42%

Analysis last updated: Friday, September 11, 2026 at 11:35 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE Volatility Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 4, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

GJR-GARCH Model

Tap to view equation

Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
ωconst4.7010
4.97***
αARCH0.2062
4.99***
βGARCH0.7851
36.41***
γleverage-0.2062
-4.85***

0.888

Persistence

6d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

4.7010
4.97***
α

ARCH

Response to squared shocks

0.2062
4.99***
β

GARCH

Volatility persistence

0.7851
36.41***
γ

leverage

Additional response to negative shocks

-0.2062
-4.85***

Persistence:

0.888

Half-life:

6 days