V-Lab
Boeing Co/The EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
30.16%
decreased by 0.34%
1 Week
30.38%
decreased by 0.12%
1 Month
31.19%
increased by 0.69%
Analysis last updated: Thursday, September 10, 2026 at 09:49 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 123% more than equivalent positive returns.
σ
EGARCH Model
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Leverage: Negative returns increase volatility 123% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0293 | 1.73* |
| αARCH | 0.1267 | 8.51*** |
| βGARCH | 0.9829 | 151.22*** |
| γleverage | -0.0482 | -2.67*** |
0.983
Persistence40d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0293 | 1.73* |
α ARCH Response to squared shocks | 0.1267 | 8.51*** |
β GARCH Volatility persistence | 0.9829 | 151.22*** |
γ leverage Additional response to negative shocks | -0.0482 | -2.67*** |
Persistence:
0.983
Half-life:
40 days
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