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V-Lab
V-Lab

Principal Focused Blue Chip ETF MEM Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

16.98%

decreased by 0.74%

1 Week

18.40%

increased by 0.68%

1 Month

22.82%

increased by 5.10%

Analysis last updated: Friday, September 4, 2026 at 09:12 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Principal Focused Blue Chip ETF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 13, 2023 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 45 trading days, meaning a shock loses half its impact after approximately 45 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 45-day half-life
ParamValuet-stat
ωconst0.1192
1.35
αARCH0.1724
2.00**
βGARCH0.8122
7.51***

0.985

Persistence

45d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1192
1.35
α

ARCH

Response to squared shocks

0.1724
2.00**
β

GARCH

Volatility persistence

0.8122
7.51***

Persistence:

0.985

Half-life:

45 days