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V-Lab

CBOE 3-Month Volatility Index MEM Volatility Analysis

Volatility prediction for Friday, August 7th, 2026

1 Day

56.50%

decreased by 7.52%

1 Week

60.84%

decreased by 3.18%

1 Month

70.98%

increased by 6.96%

Analysis last updated: Friday, August 7, 2026 at 11:34 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE 3-Month Volatility Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 9, 2007 to Jul 31, 2026

Model Insight

Volatility shocks decay with a half-life of 10 trading days, meaning a shock loses half its impact after approximately 10 days.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.9325
18.75***
α

ARCH

Response to squared shocks

0.3793
42.81***
β

GARCH

Volatility persistence

0.5535
83.13***

Persistence:

0.933

Half-life:

10 days