V-Lab
Hangzhou Prevail Optoelectronic Equipment Co., Ltd. Asy. Power MEM Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
54.64%
decreased by 3.52%
1 Week
53.07%
decreased by 5.09%
1 Month
48.99%
decreased by 9.17%
Analysis last updated: Friday, September 4, 2026 at 06:33 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 2, 2017 to Aug 28, 2026Model Insight
Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days. The volatility power δ = 1.20 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
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2300 | 2.02** |
α ARCH Response to squared shocks | 0.2277 | 8.54*** |
β GARCH Volatility persistence | 0.7440 | 24.22*** |
γ leverage Additional response to negative shocks | -0.0077 | -0.16 |
δ power Transformation power | 1.2029 | 3.13*** |
Persistence:
0.929
Half-life:
9 days
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