V-Lab
Concord Biotech Limited GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
38.01%
increased by 1.46%
1 Week
39.54%
increased by 2.99%
1 Month
42.75%
increased by 6.20%
Analysis last updated: Wednesday, September 16, 2026 at 07:27 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 18, 2023 to Sep 11, 2026Model Insight
Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 7-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8096 | 1.44 |
| αARCH | 0.0594 | 1.16 |
| βGARCH | 0.7856 | 8.84*** |
| γleverage | 0.1179 | 0.49 |
0.904
Persistence7d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8096 | 1.44 |
α ARCH Response to squared shocks | 0.0594 | 1.16 |
β GARCH Volatility persistence | 0.7856 | 8.84*** |
γ leverage Additional response to negative shocks | 0.1179 | 0.49 |
Persistence:
0.904
Half-life:
7 days
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