Skip to main content
V-Lab

State Street Consumer Staples Select Sector SPDR ETF GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, July 21st, 2026

1 Day

17.14%

decreased by 0.69%

1 Week

17.09%

decreased by 0.74%

1 Month

16.92%

decreased by 0.91%

Analysis last updated: Monday, July 20, 2026 at 09:52 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street Consumer Staples 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 Jul 17, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 364% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0157
19.59***
α

ARCH

Response to squared shocks

0.0318
12.21***
β

GARCH

Volatility persistence

0.8938
391.33***
γ

leverage

Additional response to negative shocks

0.1160
18.72***

Persistence:

0.984

Half-life:

42 days