V-Lab
Abionyx Pharma SA GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
169.83%
increased by 4.43%
1 Week
180.86%
increased by 15.46%
1 Month
202.15%
increased by 36.75%
Analysis last updated: Tuesday, September 8, 2026 at 10:01 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 15, 2016 to Sep 4, 2026Model Insight
The estimated Student-t degrees of freedom v = 2.10 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 = 2.10 sits at the infinite-variance boundary
| Param | Value | t-stat |
|---|---|---|
| ωconst | 194.6849 | 0.55 |
| αARCH | 0.1773 | 3.47*** |
| βGARCH | 0.8936 | 4.58*** |
| νDF | 2.0955 | 18.23*** |
0.894
Persistence6d
Half-life𝑓
GAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 194.6849 | 0.55 |
α ARCH Response to squared shocks | 0.1773 | 3.47*** |
β GARCH Volatility persistence | 0.8936 | 4.58*** |
ν DF Student-t tail thickness | 2.0955 | 18.23*** |
Persistence:
0.894
Half-life:
6 days
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