Skip to main content
V-Lab

iShares MSCI Brazil Capped ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, July 28th, 2026

1 Day

24.67%

decreased by 0.87%

1 Week

25.01%

decreased by 0.53%

1 Month

26.22%

increased by 0.68%

Analysis last updated: Monday, July 27, 2026 at 09:33 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares MSCI Brazil Capped ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 14, 2000 to Jul 24, 2026

Model Insight

Volatility shocks decay with a half-life of 54 trading days, meaning a shock loses half its impact after approximately 54 days. Returns follow a Student-t distribution with v = 9.59 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0838
8.73***
α

ARCH

Response to squared shocks

0.0658
28.78***
β

GARCH

Volatility persistence

0.9873
592.61***
ν

DF

Student-t tail thickness

9.5906
3.32***

Persistence:

0.987

Half-life:

54 days