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V-Lab

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

Volatility prediction for Friday, September 11th, 2026

1 Day

12.96%

decreased by 0.50%

1 Week

13.51%

increased by 0.05%

1 Month

15.37%

increased by 1.91%

Analysis last updated: Thursday, September 10, 2026 at 09:57 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street Financial 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 Sep 4, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 97% more than equivalent positive returns.

μ

AMEM Model

Tap to view equation

Leverage: Negative returns increase volatility 97% more than positive returns
ParamValuet-stat
ωconst0.0389
7.78***
αARCH0.1515
9.24***
βGARCH0.7614
59.34***
γleverage0.1464
4.36***

0.986

Persistence

49d

Half-life
μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0389
7.78***
α

ARCH

Response to squared shocks

0.1515
9.24***
β

GARCH

Volatility persistence

0.7614
59.34***
γ

leverage

Additional response to negative shocks

0.1464
4.36***

Persistence:

0.986

Half-life:

49 days