V-Lab
Oslo Stock Exchange All Share Index Asy. Power MEM Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
12.44%
1 Week
12.27%
1 Month
11.80%
Analysis last updated: Saturday, September 12, 2026 at 12:51 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 1, 2001 to Sep 10, 2026Model 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.
APMEM Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0408 | 8.19*** |
| αARCH | 0.1877 | 14.22*** |
| βGARCH | 0.7927 | 54.67*** |
| γleverage | 0.2342 | 7.23*** |
| δpower | 0.9432 | 5.75*** |
0.942
Persistence12d
Half-lifeAPMEM Model
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| Parameter | Value | t-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
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