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V-Lab
V-Lab

iShares Russell 2000 ETF MEM Volatility Analysis

Volatility prediction for Wednesday, September 9th, 2026

1 Day

12.25%

decreased by 0.64%

1 Week

13.05%

increased by 0.16%

1 Month

15.50%

increased by 2.61%

Analysis last updated: Tuesday, September 8, 2026 at 10:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares Russell 2000 ETF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 29, 2000 to Sep 4, 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
ωconst0.0551
2.50**
αARCH0.2247
11.96***
βGARCH0.7520
60.86***

0.977

Persistence

29d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0551
2.50**
α

ARCH

Response to squared shocks

0.2247
11.96***
β

GARCH

Volatility persistence

0.7520
60.86***

Persistence:

0.977

Half-life:

29 days