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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

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Date Range:

from

10/23/2024

to

10/23/2026

6M ·

All

graph of BOYD GROUP SERVICES INC GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 30, 2025 to Oct 23, 2026

Model 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

Tap to view equation

Shock decay: Shocks decay with a 29-day half-lifev = 3.06 · fat tails
ParamValuet-stat
ωlong-run8.0653
1.09
αscore0.0471
2.27**
βpersistence0.9764
37.75***
νDF3.0567
2.58**

0.976

Persistence

29d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-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