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V-Lab

Oslo Stock Exchange All Share Index APARCH Volatility Analysis

Volatility prediction for Friday, July 10th, 2026

1 Day

14.89%

increased by 0.96%

1 Week

15.28%

increased by 1.35%

1 Month

16.53%

increased by 2.60%

Analysis last updated: Sunday, July 12, 2026 at 05:02 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Oslo Stock Exchange All Share Index APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to May 15, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 189% more than equivalent positive returns. The volatility power δ = 1.33 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0502
21.89***
α

ARCH

Response to squared shocks

0.1132
32.57***
β

GARCH

Volatility persistence

0.8668
232.44***
γ

leverage

Additional response to negative shocks

0.3784
25.88***
δ

power

Transformation power

1.3313
31.13***

Persistence:

0.964

Half-life:

19 days