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General Electric Co GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, October 20th, 2026

1 Day

21.79%

decreased by 0.40%

1 Week

21.88%

decreased by 0.31%

1 Month

22.22%

increased by 0.03%

Analysis last updated: Monday, October 19, 2026 at 09:45 PM UTC

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Date Range:

from

10/19/2024

to

10/19/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

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 Oct 16, 2026

Model Insight

With persistence 0.995, volatility shocks have a half-life of 152 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 0.995, shock half-life ~152 daysv = 6.12 · fat tails
ParamValuet-stat
ωconst3.5928
1.35
αARCH0.0590
12.29***
βGARCH0.9954
314.91***
νDF6.1172
2.98***

0.995

Persistence

152d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

3.5928
1.35
α

ARCH

Response to squared shocks

0.0590
12.29***
β

GARCH

Volatility persistence

0.9954
314.91***
ν

DF

Student-t tail thickness

6.1172
2.98***

Persistence:

0.995

Half-life:

152 days