General Electric Co GARCH Volatility Analysis
Volatility prediction for Monday, October 19th, 2026
1 Day
23.70%
decreased by 0.46%
1 Week
23.78%
decreased by 0.38%
1 Month
24.06%
decreased by 0.10%
Analysis last updated: Friday, October 16, 2026 at 11:13 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 16, 2026Model Insight
With persistence 0.998, volatility shocks have a half-life of 363 trading days (~1.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GARCH Model
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High persistence: persistence 0.998, shock half-life ~363 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0112 | 3.47*** |
| αARCH | 0.0480 | 8.45*** |
| βGARCH | 0.9501 | 166.19*** |
0.998
Persistence363d
Half-lifeσ
GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0112 | 3.47*** |
α ARCH Response to squared shocks | 0.0480 | 8.45*** |
β GARCH Volatility persistence | 0.9501 | 166.19*** |
Persistence:
0.998
Half-life:
363 days
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