Skip to main content
V-Lab

CBOE Gold Volatility Index GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 26th, 2026

1 Day

78.71%

decreased by 5.05%

1 Week

79.53%

decreased by 4.23%

1 Month

81.51%

decreased by 2.25%

Analysis last updated: Wednesday, August 26, 2026 at 12:05 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE Gold Volatility Index GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 3, 2008 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days. Returns follow a Student-t distribution with v = 5.15 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

28.1304
12.13***
α

ARCH

Response to squared shocks

0.1058
18.52***
β

GARCH

Volatility persistence

0.9216
138.05***
ν

DF

Student-t tail thickness

5.1519
5.26***

Persistence:

0.922

Half-life:

8 days