V-Lab
CBOE Brazil ETF Volatility Index EGARCH Volatility Analysis
Volatility prediction for Friday, August 7th, 2026
1 Day
61.31%
decreased by 1.12%
1 Week
63.99%
increased by 1.56%
1 Month
71.69%
increased by 9.26%
Analysis last updated: Friday, August 7, 2026 at 08:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 16, 2011 to Apr 4, 2025Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 317% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2329 | 12.22*** |
α ARCH Response to squared shocks | 0.1840 | 13.22*** |
β GARCH Volatility persistence | 0.9305 | 179.46*** |
γ leverage Additional response to negative shocks | 0.1129 | 9.47*** |
Persistence:
0.931
Half-life:
10 days
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