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V-Lab

CBOE 1-Day Volatility Index MEM Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

399.56%

increased by 0.03%

1 Week

399.61%

increased by 0.08%

1 Month

399.80%

increased by 0.27%

Analysis last updated: Friday, September 4, 2026 at 11:31 AM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

All

graph of CBOE 1-Day Volatility Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 31, 2023 to Aug 28, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 89 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.22
α

ARCH

Response to squared shocks

0.0196
0.79
β

GARCH

Volatility persistence

0.9726
133.25***

Persistence:

0.992

Half-life:

89 days