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V-Lab

adidas AG GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 26th, 2026

1 Day

36.28%

decreased by 0.04%

1 Week

36.20%

decreased by 0.12%

1 Month

35.91%

decreased by 0.41%

Analysis last updated: Wednesday, August 26, 2026 at 08:09 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of adidas AG GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 17, 1995 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 65 trading days, meaning a shock loses half its impact after approximately 65 days. Returns follow a Student-t distribution with v = 4.60 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

4.1604
3.79***
α

ARCH

Response to squared shocks

0.0488
23.78***
β

GARCH

Volatility persistence

0.9894
339.89***
ν

DF

Student-t tail thickness

4.6005
7.25***

Persistence:

0.989

Half-life:

65 days