V-Lab
Nanjing Vazyme Biotech Co Ltd MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
63.29%
increased by 7.33%
1 Week
63.73%
increased by 7.77%
1 Month
62.76%
increased by 6.80%
Analysis last updated: Wednesday, September 16, 2026 at 03:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 15, 2021 to Sep 14, 2026Model Insight
Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 11-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 46 | |
| αARCH | 0.1415 | 3.53*** |
| βGARCH | 0.8326 | 21.81*** |
| γleverage | -0.0653 | -1.28 |
| λ₁tau intercept | 5.1152 | 1.12 |
| λ₂forecast adj. | 0.4703 | 2.09** |
| λ₃tau persistence | 0.0000 | 0.00 |
0.941
Persistence11d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 46 | |
α ARCH Response to squared shocks | 0.1415 | 3.53*** |
β GARCH Volatility persistence | 0.8326 | 21.81*** |
γ leverage Additional response to negative shocks | -0.0653 | -1.28 |
λ₁ tau intercept Baseline long-term coefficient | 5.1152 | 1.12 |
λ₂ forecast adj. Forecast performance sensitivity | 0.4703 | 2.09** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.941
Half-life:
11 days
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