CBOE Brazil ETF Volatility Index EGARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
140.42%
increased by 17.95%
1 Week
129.86%
increased by 7.39%
1 Month
108.81%
decreased by 13.66%
Analysis last updated: Friday, October 16, 2026 at 11:49 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 16, 2011 to Oct 8, 2026Model Insight
This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.
σ
EGARCH Model
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Inverse leverage: volatility responds almost entirely to positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.2889 | 2.83*** |
| αARCH | 0.1731 | 2.88*** |
| βGARCH | 0.9134 | 34.26*** |
| γleverage | 0.1235 | 2.43** |
0.913
Persistence8d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2889 | 2.83*** |
α ARCH Response to squared shocks | 0.1731 | 2.88*** |
β GARCH Volatility persistence | 0.9134 | 34.26*** |
γ leverage Additional response to negative shocks | 0.1235 | 2.43** |
Persistence:
0.913
Half-life:
8 days
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