V-Lab
Hangzhou Prevail Optoelectronic Equipment Co., Ltd. MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
51.37%
increased by 0.06%
1 Week
56.96%
increased by 5.65%
1 Month
64.44%
increased by 13.13%
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
Oct 19, 2017 to Aug 28, 2026Model Insight
Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.
σ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 26 | |
α ARCH Response to squared shocks | 0.2052 | 3.74*** |
β GARCH Volatility persistence | 0.5815 | 7.17*** |
γ leverage Additional response to negative shocks | -0.0380 | -0.59 |
λ₁ tau intercept Baseline long-term coefficient | 5.4861 | 2.03** |
λ₂ forecast adj. Forecast performance sensitivity | 0.5695 | 2.18** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.768
Half-life:
3 days
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