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V-Lab

OMX Copenhagen 20 Index GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 19th, 2026

1 Day

16.10%

decreased by 0.70%

1 Week

16.32%

decreased by 0.48%

1 Month

17.02%

increased by 0.22%

Analysis last updated: Wednesday, August 19, 2026 at 05:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of OMX Copenhagen 20 Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Aug 14, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 135% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0446
18.63***
α

ARCH

Response to squared shocks

0.0571
15.14***
β

GARCH

Volatility persistence

0.8751
313.42***
γ

leverage

Additional response to negative shocks

0.0769
9.53***

Persistence:

0.971

Half-life:

23 days