Skip to main content
V-Lab
V-Lab

CBOE 1-Day Volatility Index GJR-GARCH Volatility Analysis

Volatility prediction for Monday, October 26th, 2026

1 Day

379.87%

decreased by 1.27%

1 Week

379.81%

decreased by 1.33%

1 Month

379.61%

decreased by 1.53%

Analysis last updated: Monday, October 26, 2026 at 11:33 AM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

10/23/2024

to

10/23/2026

6M ·

1Y ·

2Y ·

All

graph of CBOE 1-Day Volatility Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 13, 2022 to Oct 23, 2026
Boundary Parameters

Model Insight

With persistence 0.991, volatility shocks have a half-life of 78 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.991, shock half-life ~78 days
ParamValuet-stat
ωconst5.0000
0.75
αARCH0.0202
1.37
βGARCH0.9810
104.82***
γleverage-0.0202
-0.68

0.991

Persistence

78d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.75
α

ARCH

Response to squared shocks

0.0202
1.37
β

GARCH

Volatility persistence

0.9810
104.82***
γ

leverage

Additional response to negative shocks

-0.0202
-0.68

Persistence:

0.991

Half-life:

78 days