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V-Lab

CBOE NASDAQ-100 Volatility Index MEM Volatility Analysis

Volatility prediction for Friday, August 7th, 2026

1 Day

93.45%

decreased by 15.51%

1 Week

94.35%

decreased by 14.61%

1 Month

96.04%

decreased by 12.92%

Analysis last updated: Friday, August 7, 2026 at 11:37 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOE NASDAQ-100 Volatility Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 23, 2001 to Jul 31, 2026

Model Insight

Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

4.7162
15.82***
α

ARCH

Response to squared shocks

0.2838
29.77***
β

GARCH

Volatility persistence

0.5911
84.19***

Persistence:

0.875

Half-life:

5 days