V-Lab
Christian Dior SE GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
1,794.17%
decreased by 134.98%
1 Week
1,792.45%
decreased by 136.70%
1 Month
1,785.58%
decreased by 143.57%
Analysis last updated: Wednesday, September 16, 2026 at 03:08 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 17, 2020 to Sep 14, 2026Extended Optimization
Boundary Parameters
Model Insight
The estimated Student-t degrees of freedom v = 2.00 sit at the infinite-variance boundary (v → 2): the model is attributing extreme moves to heavy tails rather than to volatility, so the volatility scale is unreliable here. See the boundary-parameters flag.
𝑓
GAS-GARCH-T Model
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Unreliable tails: v = 2.00 sits at the infinite-variance boundary
| Param | Value | t-stat |
|---|---|---|
| ωconst | 493.1585 | 1.72* |
| αARCH | 0.1005 | 25.57*** |
| βGARCH | 0.9990 | 1,659.47*** |
| νDF | 2.0003 |
0.999
Persistence693d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 493.1585 | 1.72* |
α ARCH Response to squared shocks | 0.1005 | 25.57*** |
β GARCH Volatility persistence | 0.9990 | 1,659.47*** |
ν DF Student-t tail thickness | 2.0003 |
Persistence:
0.999
Half-life:
693 days
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