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V-Lab

CBOE Silver ETF Volatility Index EGARCH Volatility Analysis

Inactive

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

1 Day

86.68%

1 Week

86.32%

1 Month

85.41%

Analysis last updated: Wednesday, September 2, 2026 at 03:49 PM UTC

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graph of CBOE Silver ETF Volatility Index EGARCH

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 9 trading days, meaning a shock loses half its impact after approximately 9 days.

σ

EGARCH Model

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Shock decay: Shocks decay with a 9-day half-life
ParamValuet-stat
ωconst0.2520
2.40**
αARCH0.1621
1.99**
βGARCH0.9244
34.04***
γleverage0.1047
1.54

0.924

Persistence

9d

Half-life
σ

EGARCH Model

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ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2520
2.40**
α

ARCH

Response to squared shocks

0.1621
1.99**
β

GARCH

Volatility persistence

0.9244
34.04***
γ

leverage

Additional response to negative shocks

0.1047
1.54

Persistence:

0.924

Half-life:

9 days