V-Lab
General Electric Co GJR-GARCH Volatility Analysis
Volatility prediction for Friday, August 28th, 2026
1 Day
37.47%
increased by 2.01%
1 Week
37.50%
increased by 2.04%
1 Month
37.62%
increased by 2.16%
Analysis last updated: Thursday, August 27, 2026 at 09:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
With persistence 0.998, volatility shocks have a half-life of 423 trading days (~1.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Leverage: Negative returns increase volatility 270% more than positive returns
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0136 | 8.38*** |
α ARCH Response to squared shocks | 0.0194 | 11.26*** |
β GARCH Volatility persistence | 0.9528 | 709.42*** |
γ leverage Additional response to negative shocks | 0.0524 | 13.32*** |
Persistence:
0.998
Half-life:
423 days
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