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V-Lab

Siemens AG EGARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

27.57%

increased by 0.25%

1 Week

27.70%

increased by 0.38%

1 Month

28.20%

increased by 0.88%

Analysis last updated: Friday, September 4, 2026 at 06:51 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Siemens AG EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 28, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 104% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0169
2.66***
α

ARCH

Response to squared shocks

0.1104
7.26***
β

GARCH

Volatility persistence

0.9891
314.69***
γ

leverage

Additional response to negative shocks

-0.0377
-3.49***

Persistence:

0.989

Half-life:

63 days