V-Lab
SRT Marine Systems PLC GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
252.49%
increased by 13.97%
1 Week
295.86%
increased by 57.34%
1 Month
369.93%
increased by 131.41%
Analysis last updated: Sunday, September 20, 2026 at 04:13 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 2007 to Sep 18, 2026Illiquid Asset
Extended Optimization
Model Insight
The estimated Student-t degrees of freedom v = 2.01 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
Tap to view equation
Unreliable tails: v = 2.01 sits at the infinite-variance boundary
| Param | Value | t-stat |
|---|---|---|
| ωconst | 733.9768 | 0.98 |
| αARCH | 0.1282 | 4.32*** |
| βGARCH | 0.8905 | 7.08*** |
| νDF | 2.0070 | 294.80*** |
0.891
Persistence6d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 733.9768 | 0.98 |
α ARCH Response to squared shocks | 0.1282 | 4.32*** |
β GARCH Volatility persistence | 0.8905 | 7.08*** |
ν DF Student-t tail thickness | 2.0070 | 294.80*** |
Persistence:
0.891
Half-life:
6 days
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