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V-Lab

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

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Shengfeng Development Ltd AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 31, 2023 to Jul 17, 2026

Model 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

Tap to view equation

ParameterValuet-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