V-Lab
BOYD GROUP SERVICES INC GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
39.93%
increased by 0.83%
1 Week
42.72%
increased by 3.62%
1 Month
43.61%
increased by 4.51%
Analysis last updated: Friday, July 24, 2026 at 10:21 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 30, 2025 to Jul 24, 2026Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 5.40*** |
α ARCH Response to squared shocks | 0.3318 | 2.21** |
β GARCH Volatility persistence | 0.1612 | 1.55 |
γ leverage Additional response to negative shocks | -0.2948 | -1.83* |
Persistence:
0.346
Half-life:
1 days
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