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Vanguard Ftse Canada IDX ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

9.57%

increased by 0.92%

1 Week

9.85%

increased by 1.20%

1 Month

10.69%

increased by 2.04%

Analysis last updated: Saturday, August 22, 2026 at 01:56 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Vanguard Ftse Canada IDX ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 6, 2011 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 16 trading days, meaning a shock loses half its impact after approximately 16 days. Returns follow a Student-t distribution with v = 10.21 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

0.6415
12.07***
α

ARCH

Response to squared shocks

0.1279
18.31***
β

GARCH

Volatility persistence

0.9585
248.12***
ν

DF

Student-t tail thickness

10.2136
2.88***

Persistence:

0.958

Half-life:

16 days