Skip to main content
V-Lab
V-Lab

iShares MSCI France ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, September 30th, 2026

1 Day

15.38%

increased by 0.98%

1 Week

15.65%

increased by 1.25%

1 Month

16.64%

increased by 2.24%

Analysis last updated: Tuesday, September 29, 2026 at 09:43 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares MSCI France ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 2, 1996 to Sep 25, 2026

Model Insight

Volatility shocks decay with a half-life of 64 trading days, meaning a shock loses half its impact after approximately 64 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

Shock decay: Shocks decay with a 64-day half-lifev = 7.55 · fat tails
ParamValuet-stat
ωconst2.5447
1.93*
αARCH0.0866
9.57***
βGARCH0.9893
180.13***
νDF7.5483
1.88*

0.989

Persistence

64d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.5447
1.93*
α

ARCH

Response to squared shocks

0.0866
9.57***
β

GARCH

Volatility persistence

0.9893
180.13***
ν

DF

Student-t tail thickness

7.5483
1.88*

Persistence:

0.989

Half-life:

64 days