Shengfeng Development Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 23rd, 2026
1 Day
102.12%
increased by 3.74%
1 Week
105.58%
increased by 7.20%
1 Month
113.45%
increased by 15.07%
Analysis last updated: Thursday, October 22, 2026 at 09:28 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 31, 2023 to Oct 19, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 8-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 1.19 |
| αARCH | 0.1220 | 0.94 |
| βGARCH | 0.7816 | 8.91*** |
| γleverage | 0.0260 | 0.09 |
0.917
Persistence8d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.19 |
α ARCH Response to squared shocks | 0.1220 | 0.94 |
β GARCH Volatility persistence | 0.7816 | 8.91*** |
γ leverage Additional response to negative shocks | 0.0260 | 0.09 |
Persistence:
0.917
Half-life:
8 days
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