V-Lab
Johnson & Johnson MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 28th, 2026
1 Day
16.15%
decreased by 0.33%
1 Week
16.84%
increased by 0.36%
1 Month
18.63%
increased by 2.15%
Analysis last updated: Saturday, September 26, 2026 at 12:29 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 25, 2026Stationarity Enforced
Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 293% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 293% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 71 | |
| αARCH | 0.0334 | 3.71*** |
| βGARCH | 0.8668 | 55.40*** |
| γleverage | 0.0979 | 6.59*** |
| λ₁tau intercept | 0.0014 | 1.23 |
| λ₂forecast adj. | 0.0113 | 2.79*** |
| λ₃tau persistence | 0.9880 | 229.70*** |
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 | 0.0334 | 3.71*** |
β GARCH Volatility persistence | 0.8668 | 55.40*** |
γ leverage Additional response to negative shocks | 0.0979 | 6.59*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0014 | 1.23 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0113 | 2.79*** |
λ₃ tau persistence Long-term factor persistence | 0.9880 | 229.70*** |
Persistence:
0.949
Half-life:
13 days
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