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V-Lab

Ilkka Oyj GJR-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

23.30%

decreased by 0.09%

1 Week

23.73%

increased by 0.34%

1 Month

25.14%

increased by 1.75%

Analysis last updated: Saturday, July 25, 2026 at 11:54 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Ilkka Oyj GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 6, 1994 to Jul 24, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 53% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0900
13.23***
α

ARCH

Response to squared shocks

0.0729
13.71***
β

GARCH

Volatility persistence

0.9168
264.83***
γ

leverage

Additional response to negative shocks

-0.0251
-3.61***

Persistence:

0.977

Half-life:

30 days