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V-Lab
V-Lab

Hangzhou Prevail Optoelectronic Equipment Co., Ltd. Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

47.83%

increased by 1.57%

1 Week

52.40%

increased by 6.14%

1 Month

60.81%

increased by 14.55%

Analysis last updated: Friday, September 11, 2026 at 06:53 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Hangzhou Prevail Optoelectronic Equipment Co., Ltd. S0GARCH

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

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 6 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.4164
6.61***
αARCH0.1854
5.07***
βGARCH0.7057
14.82***
γi Spline Coefficients
K=2
γ10.0826
2.82***
γ2-0.1057
-2.83***

0.891

Persistence

6d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.4164
6.61***
α

ARCH

Response to squared shocks

0.1854
5.07***
β

GARCH

Volatility persistence

0.7057
14.82***
γi Spline Coefficients
K=2
γ10.0826
2.82***
γ2-0.1057
-2.83***

Persistence:

0.891

Half-life:

6 days