V-Lab
Hangzhou Prevail Optoelectronic Equipment Co., Ltd. MF2-GARCH Volatility Analysis
Volatility prediction for Thursday, October 8th, 2026
1 Day
49.32%
decreased by 1.62%
1 Week
51.27%
increased by 0.33%
1 Month
55.96%
increased by 5.02%
Analysis last updated: Thursday, October 1, 2026 at 07:33 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 19, 2017 to Sep 30, 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
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Shock decay: Shocks decay with a 3-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 26 | |
| αARCH | 0.2121 | 3.79*** |
| βGARCH | 0.5733 | 7.17*** |
| γleverage | -0.0378 | -0.57 |
| λ₁tau intercept | 5.7177 | 1.96* |
| λ₂forecast adj. | 0.5436 | 2.11** |
| λ₃tau persistence | 0.0000 | 0.00 |
0.766
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 26 | |
α ARCH Response to squared shocks | 0.2121 | 3.79*** |
β GARCH Volatility persistence | 0.5733 | 7.17*** |
γ leverage Additional response to negative shocks | -0.0378 | -0.57 |
λ₁ tau intercept Baseline long-term coefficient | 5.7177 | 1.96* |
λ₂ forecast adj. Forecast performance sensitivity | 0.5436 | 2.11** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.766
Half-life:
3 days
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