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V-Lab

Hangzhou Prevail Optoelectronic Equipment Co., Ltd. MF2-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

58.68%

decreased by 4.62%

1 Week

62.12%

decreased by 1.18%

1 Month

62.94%

decreased by 0.36%

Analysis last updated: Saturday, July 25, 2026 at 11:31 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Hangzhou Prevail Optoelectronic Equipment Co., Ltd. MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 19, 2017 to Jul 24, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 53% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

26
α

ARCH

Response to squared shocks

0.1973
14.63***
β

GARCH

Volatility persistence

0.6389
24.37***
γ

leverage

Additional response to negative shocks

-0.0684
-4.76***
λ₁

tau intercept

Baseline long-term coefficient

5.5985
0.83
λ₂

forecast adj.

Forecast performance sensitivity

0.5426
0.88
λ₃

tau persistence

Long-term factor persistence

0.0000
0.00

Persistence:

0.802

Half-life:

3 days