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V-Lab

State Street Utilities Select Sector SPDR ETF Asy. MEM Volatility Analysis

Volatility prediction for Monday, August 10th, 2026

1 Day

20.71%

decreased by 0.32%

1 Week

20.65%

decreased by 0.38%

1 Month

20.45%

decreased by 0.58%

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 Utilities Select Sector SPDR ETF AMEM

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

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 45% more than equivalent positive returns.

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0352
30.22***
α

ARCH

Response to squared shocks

0.1585
34.40***
β

GARCH

Volatility persistence

0.7823
242.66***
γ

leverage

Additional response to negative shocks

0.0711
8.73***

Persistence:

0.976

Half-life:

29 days