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BOYD GROUP SERVICES INC EGARCH Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

49.25%

decreased by 14.42%

1 Week

48.84%

decreased by 14.83%

1 Month

48.52%

decreased by 15.15%

Analysis last updated: Friday, October 16, 2026 at 10:55 PM UTC

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Date Range:

from

10/16/2024

to

10/16/2026

6M ·

All

graph of BOYD GROUP SERVICES INC EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 30, 2025 to Oct 16, 2026

Model Insight

Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.

σ

EGARCH Model

Tap to view equation

Shock decay: Shocks decay with a 2-day half-life
ParamValuet-stat
ωconst0.7419
1.95*
αARCH0.4306
2.82***
βGARCH0.6672
3.57***
γleverage0.1597
1.06

0.667

Persistence

2d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.7419
1.95*
α

ARCH

Response to squared shocks

0.4306
2.82***
β

GARCH

Volatility persistence

0.6672
3.57***
γ

leverage

Additional response to negative shocks

0.1597
1.06

Persistence:

0.667

Half-life:

2 days