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V-Lab

State Street Energy Select Sector SPDR ETF GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, September 10th, 2026

1 Day

18.17%

decreased by 0.36%

1 Week

18.39%

decreased by 0.14%

1 Month

19.21%

increased by 0.68%

Analysis last updated: Wednesday, September 9, 2026 at 09:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street Energy Select Sector SPDR ETF GJR-GARCH

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 strong leverage effect: negative returns increase next-day volatility 243% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 243% more than positive returns
ParamValuet-stat
ωconst0.0299
4.16***
αARCH0.0295
3.68***
βGARCH0.9243
123.63***
γleverage0.0718
3.41***

0.990

Persistence

67d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0299
4.16***
α

ARCH

Response to squared shocks

0.0295
3.68***
β

GARCH

Volatility persistence

0.9243
123.63***
γ

leverage

Additional response to negative shocks

0.0718
3.41***

Persistence:

0.990

Half-life:

67 days