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V-Lab

Banco do Brasil SA GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

39.00%

increased by 0.56%

1 Week

39.24%

increased by 0.80%

1 Month

40.07%

increased by 1.63%

Analysis last updated: Friday, September 11, 2026 at 09:56 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Banco do Brasil SA GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 17, 1992 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 34 trading days, meaning a shock loses half its impact after approximately 34 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 34-day half-life
ParamValuet-stat
ωconst0.1597
1.08
αARCH0.0566
2.75***
βGARCH0.9287
32.72***
γleverage-0.0109
-0.19

0.980

Persistence

34d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1597
1.08
α

ARCH

Response to squared shocks

0.0566
2.75***
β

GARCH

Volatility persistence

0.9287
32.72***
γ

leverage

Additional response to negative shocks

-0.0109
-0.19

Persistence:

0.980

Half-life:

34 days