V-Lab
Guangdong Tianyu Semiconductor Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
48.07%
decreased by 0.49%
1 Week
51.14%
increased by 2.58%
1 Month
56.34%
increased by 7.78%
Analysis last updated: Wednesday, September 16, 2026 at 07:25 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 5, 2025 to Sep 14, 2026Model Insight
Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 5-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.9012 | 1.72* |
| αARCH | 0.1815 | 1.11 |
| βGARCH | 0.7770 | 8.66*** |
| γleverage | -0.1815 | -1.22 |
0.868
Persistence5d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.9012 | 1.72* |
α ARCH Response to squared shocks | 0.1815 | 1.11 |
β GARCH Volatility persistence | 0.7770 | 8.66*** |
γ leverage Additional response to negative shocks | -0.1815 | -1.22 |
Persistence:
0.868
Half-life:
5 days
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