BOYD GROUP SERVICES INC GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, October 26th, 2026
1 Day
48.15%
increased by 0.74%
1 Week
48.01%
increased by 0.60%
1 Month
47.54%
increased by 0.13%
Analysis last updated: Friday, October 23, 2026 at 10:59 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 30, 2025 to Oct 23, 2026Model Insight
Volatility shocks decay with a half-life of 29 trading days, meaning a shock loses half its impact after approximately 29 days. Returns follow a Student-t distribution with v = 3.06 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 29-day half-lifev = 3.06 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωlong-run | 8.0653 | 1.09 |
| αscore | 0.0471 | 2.27** |
| βpersistence | 0.9764 | 37.75*** |
| νDF | 3.0567 | 2.58** |
0.976
Persistence29d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω long-run Long-run variance given a price move | 8.0653 | 1.09 |
α score Weight on the scaled score | 0.0471 | 2.27** |
β persistence Volatility persistence | 0.9764 | 37.75*** |
ν DF Student-t tail thickness | 3.0567 | 2.58** |
Persistence:
0.976
Half-life:
29 days
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