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V-Lab

Ishares Core Equity ETF PTF MEM Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

14.92%

increased by 1.06%

1 Week

15.12%

increased by 1.26%

1 Month

15.63%

increased by 1.77%

Analysis last updated: Wednesday, August 5, 2026 at 09:20 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Ishares Core Equity ETF PTF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 13, 2019 to Jul 31, 2026

Model Insight

Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0686
6.96***
α

ARCH

Response to squared shocks

0.3415
19.78***
β

GARCH

Volatility persistence

0.5949
56.48***

Persistence:

0.936

Half-life:

11 days