V-Lab
US Dollar to Brazilian Real MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
8.00%
1 Week
8.86%
1 Month
11.06%
Analysis last updated: Monday, September 7, 2026 at 07:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 22, 1992 to Sep 4, 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.
MF2-GARCH Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 36 | |
| αARCH | 0.1107 | 7.37*** |
| βGARCH | 0.7942 | 34.87*** |
| γleverage | -0.0993 | -6.16*** |
| λ₁tau intercept | 0.0995 | 1.21 |
| λ₂forecast adj. | 0.8416 | 6.60*** |
| λ₃tau persistence | 0.0000 | 0.00 |
0.855
Persistence4d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 36 | |
α ARCH Response to squared shocks | 0.1107 | 7.37*** |
β GARCH Volatility persistence | 0.7942 | 34.87*** |
γ leverage Additional response to negative shocks | -0.0993 | -6.16*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0995 | 1.21 |
λ₂ forecast adj. Forecast performance sensitivity | 0.8416 | 6.60*** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.855
Half-life:
4 days
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