Merck KGaA EGARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
25.43%
decreased by 0.29%
1 Week
25.66%
decreased by 0.06%
1 Month
26.51%
increased by 0.79%
Analysis last updated: Friday, October 16, 2026 at 07:14 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 20, 1995 to Oct 9, 2026Model Insight
Volatility shocks decay with a half-life of 57 trading days, meaning a shock loses half its impact after approximately 57 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 57-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0202 | 2.95*** |
| αARCH | 0.0836 | 7.46*** |
| βGARCH | 0.9879 | 260.59*** |
| γleverage | -0.0220 | -1.76* |
0.988
Persistence57d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0202 | 2.95*** |
α ARCH Response to squared shocks | 0.0836 | 7.46*** |
β GARCH Volatility persistence | 0.9879 | 260.59*** |
γ leverage Additional response to negative shocks | -0.0220 | -1.76* |
Persistence:
0.988
Half-life:
57 days
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