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Hangzhou Prevail Optoelectronic Equipment Co., Ltd. AGARCH Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

40.33%

decreased by 1.88%

1 Week

45.22%

increased by 3.01%

1 Month

53.21%

increased by 11.00%

Analysis last updated: Wednesday, September 9, 2026 at 06:30 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Hangzhou Prevail Optoelectronic Equipment Co., Ltd. AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 19, 2017 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days.

σ

AGARCH Model

Tap to view equation

Shock decay: Shocks decay with a 5-day half-life
ParamValuet-stat
ωconst1.7678
6.21***
αARCH0.2091
5.85***
βGARCH0.6630
17.20***
γleverage0.0295
0.06

0.872

Persistence

5d

Half-life
σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.7678
6.21***
α

ARCH

Response to squared shocks

0.2091
5.85***
β

GARCH

Volatility persistence

0.6630
17.20***
γ

leverage

Additional response to negative shocks

0.0295
0.06

Persistence:

0.872

Half-life:

5 days