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V-Lab

Kelly Services Inc AGARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

40.77%

decreased by 1.86%

1 Week

40.71%

decreased by 1.92%

1 Month

40.52%

decreased by 2.11%

Analysis last updated: Friday, July 24, 2026 at 09:50 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Kelly Services Inc AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 24, 2026

Model Insight

The news-impact curve is shifted (γ = 0.52) so that negative returns raise next-day volatility more than positive returns of the same size. The gap is largest for small shocks and narrows for larger ones.

σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2141
18.00***
α

ARCH

Response to squared shocks

0.0785
26.44***
β

GARCH

Volatility persistence

0.8842
233.17***
γ

leverage

Additional response to negative shocks

0.5248
7.83***

Persistence:

0.963

Half-life:

18 days