Shengfeng Development Ltd AGARCH Volatility Analysis
Volatility prediction for Monday, July 20th, 2026
1 Day
116.51%
decreased by 10.61%
1 Week
115.93%
decreased by 11.19%
1 Month
114.58%
decreased by 12.54%
Analysis last updated: Friday, July 17, 2026 at 10:24 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 31, 2023 to Jul 17, 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
AGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 4.4129 | 6.68*** |
α ARCH Response to squared shocks | 0.1418 | 10.61*** |
β GARCH Volatility persistence | 0.7709 | 71.29*** |
γ leverage Additional response to negative shocks | -0.0083 | -0.01 |
Persistence:
0.913
Half-life:
8 days
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