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V-Lab

CBOE Silver ETF Volatility Index GAS-GARCH Student T Volatility Analysis

Inactive

Last recorded values (Monday, February 14th, 2022):

1 Day

76.14%

1 Week

76.53%

1 Month

77.81%

Analysis last updated: Thursday, March 26, 2026 at 06:12 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of CBOE Silver ETF Volatility Index GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 16, 2011 to Feb 11, 2022

Model Insight

Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days. Returns follow a Student-t distribution with v = 3.67 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

27.2507
3.61***
α

ARCH

Response to squared shocks

0.0649
16.05***
β

GARCH

Volatility persistence

0.9713
103.80***
ν

DF

Student-t tail thickness

3.6714
6.51***

Persistence:

0.971

Half-life:

24 days