V-Lab
Johnson & Johnson EGARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
22.55%
increased by 0.64%
1 Week
22.59%
increased by 0.68%
1 Month
22.71%
increased by 0.80%
Analysis last updated: Friday, September 4, 2026 at 10:58 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 112% more than equivalent positive returns.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0175 | 3.21*** |
α ARCH Response to squared shocks | 0.1616 | 11.87*** |
β GARCH Volatility persistence | 0.9773 | 278.76*** |
γ leverage Additional response to negative shocks | -0.0579 | -4.64*** |
Persistence:
0.977
Half-life:
30 days
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