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V-Lab

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

Volatility prediction for Monday, August 24th, 2026

1 Day

18.77%

decreased by 0.52%

1 Week

19.09%

decreased by 0.20%

1 Month

20.23%

increased by 0.94%

Analysis last updated: Friday, August 21, 2026 at 10:26 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 Aug 21, 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 = 7.55 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

3.4957
6.55***
α

ARCH

Response to squared shocks

0.0697
30.48***
β

GARCH

Volatility persistence

0.9884
516.94***
ν

DF

Student-t tail thickness

7.5453
4.70***

Persistence:

0.988

Half-life:

59 days