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V-Lab

BOYD GROUP SERVICES INC GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

39.84%

increased by 0.45%

1 Week

49.87%

increased by 10.48%

1 Month

56.09%

increased by 16.70%

Analysis last updated: Friday, August 21, 2026 at 10:28 PM UTC

Date Range:

from

to

6M ·

All

graph of BOYD GROUP SERVICES INC GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 30, 2025 to Aug 21, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

4.7739
6.73***
α

ARCH

Response to squared shocks

0.9346
4.62***
β

GARCH

Volatility persistence

0.1614
2.60***
γ

leverage

Additional response to negative shocks

-0.9022
-4.37***

Persistence:

0.645

Half-life:

2 days