V-Lab
General Electric Co AGARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
31.41%
decreased by 0.84%
1 Week
31.46%
decreased by 0.79%
1 Month
31.67%
decreased by 0.58%
Analysis last updated: Saturday, September 12, 2026 at 12:06 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 11, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 256 trading days (~1.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: negative returns raise volatility more
σ
AGARCH Model
Tap to view equation
High persistence: persistence 0.997, shock half-life ~256 daysAsymmetry: negative returns raise volatility more
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0032 | 0.49 |
| αARCH | 0.0541 | 9.80*** |
| βGARCH | 0.9432 | 164.78*** |
| γleverage | 0.5117 | 5.14*** |
0.997
Persistence256d
Half-lifeσ
AGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0032 | 0.49 |
α ARCH Response to squared shocks | 0.0541 | 9.80*** |
β GARCH Volatility persistence | 0.9432 | 164.78*** |
γ leverage Additional response to negative shocks | 0.5117 | 5.14*** |
Persistence:
0.997
Half-life:
256 days
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