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V-Lab

Infineon Technologies AG GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

55.92%

decreased by 0.42%

1 Week

56.02%

decreased by 0.32%

1 Month

56.43%

increased by 0.09%

Analysis last updated: Saturday, September 19, 2026 at 08:50 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Infineon Technologies AG GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 10, 2000 to Sep 18, 2026
Boundary Parameters

Model Insight

With persistence 0.999, volatility shocks have a half-life of 693 trading days (~2.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 6.91 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~693 daysv = 6.91 · fat tails
ParamValuet-stat
ωconst35.2026
1.47
αARCH0.0597
16.64***
βGARCH0.9990
1,359.18***
νDF6.9110
3.44***

0.999

Persistence

693d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

35.2026
1.47
α

ARCH

Response to squared shocks

0.0597
16.64***
β

GARCH

Volatility persistence

0.9990
1,359.18***
ν

DF

Student-t tail thickness

6.9110
3.44***

Persistence:

0.999

Half-life:

693 days