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Vietnam Hanoi Stock Exchange Equity Index MEM Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

15.91%

decreased by 1.52%

1 Week

16.59%

decreased by 0.84%

1 Month

18.87%

increased by 1.44%

Analysis last updated: Saturday, September 12, 2026 at 12:48 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Vietnam Hanoi Stock Exchange Equity Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 3, 2007 to Sep 10, 2026

Model Insight

Volatility shocks decay with a half-life of 52 trading days, meaning a shock loses half its impact after approximately 52 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 52-day half-life
ParamValuet-stat
ωconst0.0576
1.04
αARCH0.2692
7.17***
βGARCH0.7176
43.10***

0.987

Persistence

52d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0576
1.04
α

ARCH

Response to squared shocks

0.2692
7.17***
β

GARCH

Volatility persistence

0.7176
43.10***

Persistence:

0.987

Half-life:

52 days