V-Lab
Johnson & Johnson MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 16th, 2026
1 Day
19.74%
decreased by 0.72%
1 Week
20.02%
decreased by 0.44%
1 Month
20.86%
increased by 0.40%
Analysis last updated: Tuesday, September 15, 2026 at 09:30 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 11, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 298% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 298% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 71 | |
| αARCH | 0.0329 | 3.67*** |
| βGARCH | 0.8675 | 55.84*** |
| γleverage | 0.0980 | 6.62*** |
| λ₁tau intercept | 0.0014 | 1.22 |
| λ₂forecast adj. | 0.0114 | 2.79*** |
| λ₃tau persistence | 0.9878 | 227.13*** |
0.949
Persistence13d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 71 | |
α ARCH Response to squared shocks | 0.0329 | 3.67*** |
β GARCH Volatility persistence | 0.8675 | 55.84*** |
γ leverage Additional response to negative shocks | 0.0980 | 6.62*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0014 | 1.22 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0114 | 2.79*** |
λ₃ tau persistence Long-term factor persistence | 0.9878 | 227.13*** |
Persistence:
0.949
Half-life:
13 days
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