V-Lab
Zhejiang MTCN Technology Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
91.15%
decreased by 10.20%
1 Week
87.61%
decreased by 13.74%
1 Month
77.27%
decreased by 24.08%
Analysis last updated: Saturday, September 19, 2026 at 07:49 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 18, 2020 to Sep 18, 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
GJR-GARCH Model
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Shock decay: Shocks decay with a 11-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7381 | 3.68*** |
| αARCH | 0.1655 | 3.26*** |
| βGARCH | 0.7896 | 21.94*** |
| γleverage | -0.0362 | -0.43 |
0.937
Persistence11d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7381 | 3.68*** |
α ARCH Response to squared shocks | 0.1655 | 3.26*** |
β GARCH Volatility persistence | 0.7896 | 21.94*** |
γ leverage Additional response to negative shocks | -0.0362 | -0.43 |
Persistence:
0.937
Half-life:
11 days
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