V-Lab
BASF SE GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
23.50%
decreased by 0.21%
1 Week
23.60%
decreased by 0.11%
1 Month
23.99%
increased by 0.28%
Analysis last updated: Wednesday, September 16, 2026 at 05:57 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 14, 2026Model Insight
Volatility shocks decay with a half-life of 60 trading days, meaning a shock loses half its impact after approximately 60 days. Returns follow a Student-t distribution with v = 6.35 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 60-day half-lifev = 6.35 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 3.0579 | 1.60 |
| αARCH | 0.0617 | 8.46*** |
| βGARCH | 0.9885 | 125.14*** |
| νDF | 6.3534 | 1.63 |
0.988
Persistence60d
Half-life𝑓
GAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.0579 | 1.60 |
α ARCH Response to squared shocks | 0.0617 | 8.46*** |
β GARCH Volatility persistence | 0.9885 | 125.14*** |
ν DF Student-t tail thickness | 6.3534 | 1.63 |
Persistence:
0.988
Half-life:
60 days
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