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Wilshire 5000 Total Market Index MEM Volatility Analysis

Volatility prediction for Monday, November 9th, 2026

1 Day

26.55%

decreased by 4.02%

1 Week

26.25%

decreased by 4.32%

1 Month

25.20%

decreased by 5.37%

Analysis last updated: Saturday, November 7, 2026 at 05:03 AM UTC

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Date Range:

from

11/06/2024

to

11/06/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Wilshire 5000 Total Market Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 31, 2009 to Nov 6, 2026

Model Insight

Volatility shocks decay with a half-life of 28 trading days, meaning a shock loses half its impact after approximately 28 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 28-day half-life
ParamValuet-stat
ωconst0.0367
3.10***
αARCH0.2918
11.20***
βGARCH0.6836
37.61***

0.975

Persistence

28d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0367
3.10***
α

ARCH

Response to squared shocks

0.2918
11.20***
β

GARCH

Volatility persistence

0.6836
37.61***

Persistence:

0.975

Half-life:

28 days