Skip to main content
V-Lab
V-Lab

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

Volatility prediction for Wednesday, September 9th, 2026

1 Day

17.12%

decreased by 0.31%

1 Week

17.20%

decreased by 0.23%

1 Month

17.52%

increased by 0.09%

Analysis last updated: Tuesday, September 8, 2026 at 10:45 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street Industrial 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

Volatility shocks decay with a half-life of 47 trading days, meaning a shock loses half its impact after approximately 47 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 47-day half-life
ParamValuet-stat
ωconst0.0231
4.09***
αARCH0.0000
0.00
βGARCH0.9196
128.12***
γleverage0.1314
7.19***

0.985

Persistence

47d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0231
4.09***
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.9196
128.12***
γ

leverage

Additional response to negative shocks

0.1314
7.19***

Persistence:

0.985

Half-life:

47 days