V-Lab
US Dollar to Brazilian Real GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
7.75%
decreased by 0.22%
1 Week
7.89%
decreased by 0.08%
1 Month
8.39%
increased by 0.42%
Analysis last updated: Sunday, July 26, 2026 at 01:36 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 22, 1992 to Jul 24, 2026Model Insight
With persistence 0.992, volatility shocks have a half-life of 82 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Inverse leverage: Positive returns increase volatility 115% more than negative returns
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0064 | 5.08*** |
α ARCH Response to squared shocks | 0.1001 | 26.61*** |
β GARCH Volatility persistence | 0.9181 | 521.08*** |
γ leverage Additional response to negative shocks | -0.0535 | -8.51*** |
Persistence:
0.992
Half-life:
82 days
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