V-Lab
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
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 3, 2007 to Sep 10, 2026Model 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
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0576 | 1.04 |
| αARCH | 0.2692 | 7.17*** |
| βGARCH | 0.7176 | 43.10*** |
0.987
Persistence52d
Half-lifeμ
MEM Model
Tap to view equation
| Parameter | Value | t-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
Other Vietnam Hanoi Stock Exchange Equity Index Analyses
Other MEM Analyses on Equity Indices