V-Lab
Merck KGaA MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
24.53%
increased by 1.11%
1 Week
25.81%
increased by 2.39%
1 Month
26.90%
increased by 3.48%
Analysis last updated: Saturday, September 19, 2026 at 08:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 20, 1995 to Sep 18, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 144% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 144% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 31 | |
| αARCH | 0.0718 | 4.46*** |
| βGARCH | 0.6511 | 13.83*** |
| γleverage | 0.1034 | 3.18*** |
| λ₁tau intercept | 0.0079 | 1.85* |
| λ₂forecast adj. | 0.0109 | 3.72*** |
| λ₃tau persistence | 0.9869 | 262.27*** |
0.775
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 31 | |
α ARCH Response to squared shocks | 0.0718 | 4.46*** |
β GARCH Volatility persistence | 0.6511 | 13.83*** |
γ leverage Additional response to negative shocks | 0.1034 | 3.18*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0079 | 1.85* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0109 | 3.72*** |
λ₃ tau persistence Long-term factor persistence | 0.9869 | 262.27*** |
Persistence:
0.775
Half-life:
3 days
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