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V-Lab

iShares China Large-Cap ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, July 28th, 2026

1 Day

22.75%

increased by 1.58%

1 Week

22.94%

increased by 1.77%

1 Month

23.61%

increased by 2.44%

Analysis last updated: Monday, July 27, 2026 at 10:57 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares China Large-Cap ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 8, 2004 to Jul 24, 2026

Model Insight

Volatility shocks decay with a half-life of 59 trading days, meaning a shock loses half its impact after approximately 59 days. Returns follow a Student-t distribution with v = 7.53 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

3.5127
6.54***
α

ARCH

Response to squared shocks

0.0697
30.33***
β

GARCH

Volatility persistence

0.9884
515.31***
ν

DF

Student-t tail thickness

7.5288
4.71***

Persistence:

0.988

Half-life:

59 days