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
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 16, 2011 to Feb 11, 2022Model 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
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.2520 | 2.40** |
| αARCH | 0.1621 | 1.99** |
| βGARCH | 0.9244 | 34.04*** |
| γleverage | 0.1047 | 1.54 |
0.924
Persistence9d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-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
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