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V-Lab

CBOE EFA ETF Volatility Index Asy. MEM Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

93.98%

increased by 1.12%

1 Week

105.61%

increased by 12.75%

1 Month

140.85%

increased by 47.99%

Analysis last updated: Friday, September 4, 2026 at 11:33 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE EFA ETF Volatility Index AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 28, 2013 to Aug 28, 2026

Model Insight

Volatility shocks decay with a half-life of 69 trading days, meaning a shock loses half its impact after approximately 69 days.

μ

AMEM Model

Tap to view equation

Shock decay: Shocks decay with a 69-day half-life
ParamValuet-stat
ωconst5.0000
4.85***
αARCH0.2465
5.76***
βGARCH0.7482
26.29***
γleverage-0.0094
-0.14

0.990

Persistence

69d

Half-life
μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
4.85***
α

ARCH

Response to squared shocks

0.2465
5.76***
β

GARCH

Volatility persistence

0.7482
26.29***
γ

leverage

Additional response to negative shocks

-0.0094
-0.14

Persistence:

0.990

Half-life:

69 days