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V-Lab

NASDAQ Composite Index MEM Volatility Analysis

Volatility prediction for Tuesday, October 27th, 2026

1 Day

18.00%

decreased by 0.46%

1 Week

18.23%

decreased by 0.23%

1 Month

18.97%

increased by 0.51%

Analysis last updated: Tuesday, October 27, 2026 at 12:13 AM UTC

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Date Range:

from

10/26/2024

to

10/26/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of NASDAQ Composite Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Oct 23, 2026

Model Insight

Volatility shocks decay with a half-life of 29 trading days, meaning a shock loses half its impact after approximately 29 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 29-day half-life
ParamValuet-stat
ωconst0.0464
2.78***
αARCH0.2421
13.59***
βGARCH0.7345
61.83***

0.977

Persistence

29d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0464
2.78***
α

ARCH

Response to squared shocks

0.2421
13.59***
β

GARCH

Volatility persistence

0.7345
61.83***

Persistence:

0.977

Half-life:

29 days