V-Lab
CBOE Energy ETF Volatility Index GJR-GARCH Volatility Analysis
Inactive
Last recorded values (Monday, February 14th, 2022):
1 Day
95.90%
1 Week
94.10%
1 Month
91.12%
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, 2022Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 4-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 4.27*** |
| αARCH | 0.1897 | 3.49*** |
| βGARCH | 0.7172 | 14.36*** |
| γleverage | -0.1315 | -1.82* |
0.841
Persistence4d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 4.27*** |
α ARCH Response to squared shocks | 0.1897 | 3.49*** |
β GARCH Volatility persistence | 0.7172 | 14.36*** |
γ leverage Additional response to negative shocks | -0.1315 | -1.82* |
Persistence:
0.841
Half-life:
4 days
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