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V-Lab

CBOE Brazil ETF Volatility Index MF2-GARCH Volatility Analysis

Volatility prediction for Friday, August 21st, 2026

1 Day

71.28%

decreased by 0.03%

1 Week

73.00%

increased by 1.69%

1 Month

75.93%

increased by 4.62%

Analysis last updated: Friday, August 21, 2026 at 08:17 PM UTC

Date Range:

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to

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2Y ·

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graph of CBOE Brazil ETF Volatility Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 16, 2011 to Apr 4, 2025

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 334% 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

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.2319
23.70***
β

GARCH

Volatility persistence

0.6104
27.90***
γ

leverage

Additional response to negative shocks

-0.1785
-13.45***
λ₁

tau intercept

Baseline long-term coefficient

0.8541
1.17
λ₂

forecast adj.

Forecast performance sensitivity

0.0263
1.16
λ₃

tau persistence

Long-term factor persistence

0.9401
19.01***

Persistence:

0.753

Half-life:

2 days