V-Lab
Rheinmetall AG GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
45.69%
decreased by 1.60%
1 Week
45.49%
decreased by 1.80%
1 Month
44.79%
decreased by 2.50%
Analysis last updated: Wednesday, September 16, 2026 at 08:57 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
Volatility shocks decay with a half-life of 35 trading days, meaning a shock loses half its impact after approximately 35 days. Returns follow a Student-t distribution with v = 3.77 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
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Shock decay: Shocks decay with a 35-day half-lifev = 3.77 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 6.4328 | 0.95 |
| αARCH | 0.0633 | 4.34*** |
| βGARCH | 0.9804 | 45.64*** |
| νDF | 3.7715 | 2.05** |
0.980
Persistence35d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 6.4328 | 0.95 |
α ARCH Response to squared shocks | 0.0633 | 4.34*** |
β GARCH Volatility persistence | 0.9804 | 45.64*** |
ν DF Student-t tail thickness | 3.7715 | 2.05** |
Persistence:
0.980
Half-life:
35 days
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