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V-Lab

General Electric Co GJR-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

33.85%

decreased by 0.77%

1 Week

33.89%

decreased by 0.73%

1 Month

34.06%

decreased by 0.56%

Analysis last updated: Friday, September 18, 2026 at 11:28 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of General Electric Co GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 18, 2026

Model Insight

With persistence 0.998, volatility shocks have a half-life of 404 trading days (~1.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 267% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.998, shock half-life ~404 daysLeverage: Negative returns increase volatility 267% more than positive returns
ParamValuet-stat
ωconst0.0136
2.11**
αARCH0.0195
2.82***
βGARCH0.9528
177.34***
γleverage0.0520
3.31***

0.998

Persistence

404d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0136
2.11**
α

ARCH

Response to squared shocks

0.0195
2.82***
β

GARCH

Volatility persistence

0.9528
177.34***
γ

leverage

Additional response to negative shocks

0.0520
3.31***

Persistence:

0.998

Half-life:

404 days