Broadcom Inc GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, October 27th, 2026
1 Day
40.81%
decreased by 0.71%
1 Week
40.78%
decreased by 0.74%
1 Month
40.69%
decreased by 0.83%
Analysis last updated: Monday, October 26, 2026 at 09:17 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 6, 2009 to Oct 23, 2026Model Insight
Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 24-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1820 | 2.39** |
| αARCH | 0.0464 | 2.41** |
| βGARCH | 0.9034 | 32.48*** |
| γleverage | 0.0439 | 1.15 |
0.972
Persistence24d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1820 | 2.39** |
α ARCH Response to squared shocks | 0.0464 | 2.41** |
β GARCH Volatility persistence | 0.9034 | 32.48*** |
γ leverage Additional response to negative shocks | 0.0439 | 1.15 |
Persistence:
0.972
Half-life:
24 days
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