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V-Lab

iShares Global Clean Energy Index ETF MEM Volatility Analysis

Volatility prediction for Tuesday, July 21st, 2026

1 Day

48.21%

decreased by 2.22%

1 Week

47.41%

decreased by 3.02%

1 Month

44.98%

decreased by 5.45%

Analysis last updated: Tuesday, July 21, 2026 at 12:25 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of iShares Global Clean Energy Index ETF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 3, 2022 to Jul 17, 2026

Model Insight

Volatility shocks decay with a half-life of 14 trading days, meaning a shock loses half its impact after approximately 14 days.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2983
3.67***
α

ARCH

Response to squared shocks

0.0712
3.77***
β

GARCH

Volatility persistence

0.8791
71.44***

Persistence:

0.950

Half-life:

14 days