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General Electric Co GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, September 29th, 2026

1 Day

29.80%

increased by 1.96%

1 Week

29.80%

increased by 1.96%

1 Month

29.81%

increased by 1.97%

Analysis last updated: Monday, September 28, 2026 at 09:43 PM UTC

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graph of General Electric Co 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 Sep 25, 2026

Model Insight

With persistence 0.996, volatility shocks have a half-life of 154 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 6.12 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.996, shock half-life ~154 daysv = 6.12 · fat tails
ParamValuet-stat
ωconst3.6157
1.35
αARCH0.0588
12.36***
βGARCH0.9955
322.38***
νDF6.1152
3.00***

0.996

Persistence

154d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

3.6157
1.35
α

ARCH

Response to squared shocks

0.0588
12.36***
β

GARCH

Volatility persistence

0.9955
322.38***
ν

DF

Student-t tail thickness

6.1152
3.00***

Persistence:

0.996

Half-life:

154 days