V-Lab
ABM Industries Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
20.91%
decreased by 0.11%
1 Week
23.48%
increased by 2.46%
1 Month
28.56%
increased by 7.54%
Analysis last updated: Friday, August 21, 2026 at 10:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 49% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4032 | 28.27*** |
α ARCH Response to squared shocks | 0.1644 | 15.35*** |
β GARCH Volatility persistence | 0.7061 | 99.57*** |
γ leverage Additional response to negative shocks | 0.0802 | 4.16*** |
Persistence:
0.911
Half-life:
7 days
Other ABM Industries Inc Analyses
Other GJR-GARCH Analyses on Equities