V-Lab
Hangzhou Prevail Optoelectronic Equipment Co., Ltd. MEM Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
44.31%
unchanged at 0.00%
1 Week
45.65%
increased by 1.34%
1 Month
49.59%
increased by 5.28%
Analysis last updated: Saturday, August 15, 2026 at 07:44 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 2, 2017 to Aug 14, 2026Model Insight
Volatility shocks decay with a half-life of 17 trading days, meaning a shock loses half its impact after approximately 17 days.
μ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5530 | 6.95*** |
α ARCH Response to squared shocks | 0.2117 | 19.59*** |
β GARCH Volatility persistence | 0.7493 | 104.34*** |
Persistence:
0.961
Half-life:
17 days
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