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V-Lab

Russell 1000 Value Index MEM Volatility Analysis

Volatility prediction for Friday, October 16th, 2026

1 Day

9.09%

increased by 0.45%

1 Week

9.64%

increased by 1.00%

1 Month

11.32%

increased by 2.68%

Analysis last updated: Friday, October 16, 2026 at 12:05 AM UTC

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Date Range:

from

10/15/2024

to

10/15/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Russell 1000 Value Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 12, 2000 to Oct 9, 2026

Model Insight

Volatility shocks decay with a half-life of 31 trading days, meaning a shock loses half its impact after approximately 31 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 31-day half-life
ParamValuet-stat
ωconst0.0280
1.61
αARCH0.2397
8.91***
βGARCH0.7381
49.88***

0.978

Persistence

31d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0280
1.61
α

ARCH

Response to squared shocks

0.2397
8.91***
β

GARCH

Volatility persistence

0.7381
49.88***

Persistence:

0.978

Half-life:

31 days