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Hevol Services Group Co Ltd MF2-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

47.47%

decreased by 1.74%

1 Week

48.05%

decreased by 1.16%

1 Month

50.07%

increased by 0.86%

Analysis last updated: Tuesday, September 8, 2026 at 08:17 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Hevol Services Group Co Ltd MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 12, 2019 to Aug 28, 2026

Model Insight

Volatility shocks decay with a half-life of 46 trading days, meaning a shock loses half its impact after approximately 46 days.

σ

MF2-GARCH Model

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Shock decay: Shocks decay with a 46-day half-life
ParamValuet-stat
αARCH0.1530
3.61***
βGARCH0.8693
39.72***
γleverage-0.0747
-0.76
λ₁tau intercept16.2958
2.32**

0.985

Persistence

46d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
α

ARCH

Response to squared shocks

0.1530
3.61***
β

GARCH

Volatility persistence

0.8693
39.72***
γ

leverage

Additional response to negative shocks

-0.0747
-0.76
λ₁

tau intercept

Baseline long-term coefficient

16.2958
2.32**

Persistence:

0.985

Half-life:

46 days