V-Lab
Wawel Sa Asy. Power MEM Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
20.54%
decreased by 0.50%
1 Week
22.14%
increased by 1.10%
1 Month
25.53%
increased by 4.49%
Analysis last updated: Sunday, August 9, 2026 at 01:24 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 2, 2001 to Aug 7, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 16% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
μ
APMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2754 | 20.86*** |
α ARCH Response to squared shocks | 0.1731 | 39.02*** |
β GARCH Volatility persistence | 0.7462 | 118.41*** |
γ leverage Additional response to negative shocks | -0.0397 | -4.48*** |
δ power Transformation power | 1.8644 | 33.47*** |
Persistence:
0.912
Half-life:
7 days
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