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V-Lab

BOYD GROUP SERVICES INC MEM Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Wednesday, August 12th, 2026

1 Day

25.50%

decreased by 1.15%

1 Week

25.54%

decreased by 1.11%

1 Month

25.71%

decreased by 0.94%

Analysis last updated: Tuesday, August 11, 2026 at 10:15 PM UTC

Date Range:

from

to

6M ·

All

graph of BOYD GROUP SERVICES INC MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 30, 2025 to Aug 7, 2026

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): volatility shocks do not decay and the long-run variance is undefined, so long-horizon forecasts should be treated with caution.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0041
1.64
α

ARCH

Response to squared shocks

0.1456
7.34***
β

GARCH

Volatility persistence

0.8544
38.43***

Persistence:

1.000

Half-life:

-