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V-Lab

Rheinmetall AG GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

41.42%

decreased by 1.02%

1 Week

41.69%

decreased by 0.75%

1 Month

42.69%

increased by 0.25%

Analysis last updated: Wednesday, September 16, 2026 at 08:56 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Rheinmetall AG GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 2, 2019 to Sep 14, 2026

Model Insight

With persistence 0.994, volatility shocks have a half-life of 110 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.994, shock half-life ~110 days
ParamValuet-stat
ωconst0.0869
1.55
αARCH0.0659
1.14
βGARCH0.9223
21.60***
γleverage0.0111
0.25

0.994

Persistence

110d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0869
1.55
α

ARCH

Response to squared shocks

0.0659
1.14
β

GARCH

Volatility persistence

0.9223
21.60***
γ

leverage

Additional response to negative shocks

0.0111
0.25

Persistence:

0.994

Half-life:

110 days