V-Lab
Fresenius Medical Care AG EGARCH Volatility Analysis
Volatility prediction for Thursday, September 10th, 2026
1 Day
25.89%
decreased by 0.05%
1 Week
26.05%
increased by 0.11%
1 Month
26.66%
increased by 0.72%
Analysis last updated: Thursday, September 10, 2026 at 07:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 3, 1996 to Sep 4, 2026Model Insight
With persistence 0.991, volatility shocks have a half-life of 79 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Leverage: Negative returns increase volatility 365% more than positive returns
σ
EGARCH Model
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High persistence: persistence 0.991, shock half-life ~79 daysLeverage: Negative returns increase volatility 365% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0146 | 1.07 |
| αARCH | 0.0694 | 6.70*** |
| βGARCH | 0.9913 | 186.90*** |
| γleverage | -0.0448 | -2.88*** |
0.991
Persistence79d
Half-lifeσ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0146 | 1.07 |
α ARCH Response to squared shocks | 0.0694 | 6.70*** |
β GARCH Volatility persistence | 0.9913 | 186.90*** |
γ leverage Additional response to negative shocks | -0.0448 | -2.88*** |
Persistence:
0.991
Half-life:
79 days
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