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V-Lab

State Street Consumer Staples Select Sector SPDR ETF MEM Volatility Analysis

Volatility prediction for Monday, August 10th, 2026

1 Day

17.27%

decreased by 1.37%

1 Week

17.12%

decreased by 1.52%

1 Month

16.63%

decreased by 2.01%

Analysis last updated: Friday, August 7, 2026 at 10:49 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street Consumer Staples Select Sector SPDR ETF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 22, 1998 to Aug 7, 2026

Model Insight

Volatility shocks decay with a half-life of 20 trading days, meaning a shock loses half its impact after approximately 20 days.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0295
6.98***
α

ARCH

Response to squared shocks

0.2292
33.91***
β

GARCH

Volatility persistence

0.7369
191.07***

Persistence:

0.966

Half-life:

20 days