V-Lab
Abbott Laboratories EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
28.84%
increased by 1.19%
1 Week
28.82%
increased by 1.17%
1 Month
28.76%
increased by 1.11%
Analysis last updated: Thursday, September 10, 2026 at 09:48 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 237% more than equivalent positive returns.
σ
EGARCH Model
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Leverage: Negative returns increase volatility 237% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0214 | 2.11** |
| αARCH | 0.1060 | 6.71*** |
| βGARCH | 0.9815 | 226.94*** |
| γleverage | -0.0575 | -3.78*** |
0.982
Persistence37d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0214 | 2.11** |
α ARCH Response to squared shocks | 0.1060 | 6.71*** |
β GARCH Volatility persistence | 0.9815 | 226.94*** |
γ leverage Additional response to negative shocks | -0.0575 | -3.78*** |
Persistence:
0.982
Half-life:
37 days
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