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
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 30, 2025 to Aug 7, 2026Model 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
| Parameter | Value | t-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:
-
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