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V-Lab

Volkswagen AG GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, July 20th, 2026

1 Day

36.04%

decreased by 2.20%

1 Week

35.99%

decreased by 2.25%

1 Month

35.82%

decreased by 2.42%

Analysis last updated: Saturday, July 18, 2026 at 10:59 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Volkswagen AG GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 17, 2026

Model Insight

Volatility shocks decay with a half-life of 42 trading days, meaning a shock loses half its impact after approximately 42 days. Returns follow a Student-t distribution with v = 5.84 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

4.7297
6.72***
α

ARCH

Response to squared shocks

0.0770
30.86***
β

GARCH

Volatility persistence

0.9835
370.29***
ν

DF

Student-t tail thickness

5.8387
7.65***

Persistence:

0.983

Half-life:

42 days