Skip to main content
V-Lab
V-Lab

OMX Stockholm 30 Index AGARCH Volatility Analysis

Volatility prediction for Monday, September 28th, 2026

1 Day

15.89%

decreased by 0.88%

1 Week

16.19%

decreased by 0.58%

1 Month

17.19%

increased by 0.42%

Analysis last updated: Friday, September 25, 2026 at 04:10 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of OMX Stockholm 30 Index AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 25, 2026

Model Insight

The news-impact curve is shifted (γ = 0.65) 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

Asymmetry: negative returns raise volatility more
ParamValuet-stat
ωconst0.0070
0.91
αARCH0.0848
11.15***
βGARCH0.8922
110.27***
γleverage0.6475
7.62***

0.977

Persistence

30d

Half-life
σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0070
0.91
α

ARCH

Response to squared shocks

0.0848
11.15***
β

GARCH

Volatility persistence

0.8922
110.27***
γ

leverage

Additional response to negative shocks

0.6475
7.62***

Persistence:

0.977

Half-life:

30 days