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V-Lab

Hevol Services Group Co Ltd MEM Volatility Analysis

Volatility prediction for Friday, August 14th, 2026

1 Day

44.12%

decreased by 1.56%

1 Week

44.61%

decreased by 1.07%

1 Month

45.78%

increased by 0.10%

Analysis last updated: Friday, August 14, 2026 at 06:52 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Hevol Services Group Co Ltd MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 12, 2019 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.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.7217
5.69***
α

ARCH

Response to squared shocks

0.2660
11.01***
β

GARCH

Volatility persistence

0.6527
39.74***

Persistence:

0.919

Half-life:

8 days