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V-Lab

Oslo Stock Exchange All Share Index Asy. Power MEM Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

12.44%

increased by 1.05%

1 Week

12.27%

increased by 0.88%

1 Month

11.80%

increased by 0.41%

Analysis last updated: Saturday, September 12, 2026 at 12:51 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Oslo Stock Exchange All Share Index APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 1, 2001 to Sep 10, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 57% more than equivalent positive returns. The volatility power δ = 0.94 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

μ

APMEM Model

Tap to view equation

Leverage: Negative returns increase volatility 57% more than positive returnsδ = 0.94 · sub-quadratic power
ParamValuet-stat
ωconst0.0408
8.19***
αARCH0.1877
14.22***
βGARCH0.7927
54.67***
γleverage0.2342
7.23***
δpower0.9432
5.75***

0.942

Persistence

12d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0408
8.19***
α

ARCH

Response to squared shocks

0.1877
14.22***
β

GARCH

Volatility persistence

0.7927
54.67***
γ

leverage

Additional response to negative shocks

0.2342
7.23***
δ

power

Transformation power

0.9432
5.75***

Persistence:

0.942

Half-life:

12 days