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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

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of ABM Industries Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 21, 2026

Model 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

ParameterValuet-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