Boeing Co/The GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
33.28%
decreased by 0.48%
1 Week
33.28%
decreased by 0.48%
1 Month
33.29%
decreased by 0.47%
Analysis last updated: Thursday, October 15, 2026 at 10:02 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 9, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 219% more than equivalent positive returns.
σ
GJR-GARCH Model
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Leverage: Negative returns increase volatility 219% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0552 | 2.56** |
| αARCH | 0.0265 | 2.84*** |
| βGARCH | 0.9320 | 130.47*** |
| γleverage | 0.0581 | 2.18** |
0.988
Persistence55d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0552 | 2.56** |
α ARCH Response to squared shocks | 0.0265 | 2.84*** |
β GARCH Volatility persistence | 0.9320 | 130.47*** |
γ leverage Additional response to negative shocks | 0.0581 | 2.18** |
Persistence:
0.988
Half-life:
55 days
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