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
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 2, 2019 to Sep 14, 2026Model 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
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High persistence: persistence 0.994, shock half-life ~110 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0869 | 1.55 |
| αARCH | 0.0659 | 1.14 |
| βGARCH | 0.9223 | 21.60*** |
| γleverage | 0.0111 | 0.25 |
0.994
Persistence110d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-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
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