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V-Lab

Ventia Services Group Pty Ltd AGARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

31.59%

increased by 0.27%

1 Week

31.89%

increased by 0.57%

1 Month

32.00%

increased by 0.68%

Analysis last updated: Sunday, August 16, 2026 at 12:45 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Ventia Services Group Pty Ltd AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 23, 2021 to Aug 14, 2026

Model Insight

The news-impact curve is shifted (γ = 0.80) 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

2.2513
20.79***
α

ARCH

Response to squared shocks

0.2315
6.90***
β

GARCH

Volatility persistence

0.1789
5.31***
γ

leverage

Additional response to negative shocks

0.8039
7.72***

Persistence:

0.410

Half-life:

1 days