V-Lab
State Street Consumer Staples Select Sector SPDR ETF GARCH Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
15.42%
decreased by 0.89%
1 Week
15.42%
decreased by 0.89%
1 Month
15.40%
decreased by 0.91%
Analysis last updated: Friday, August 7, 2026 at 10:48 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 22, 1998 to Aug 7, 2026Model Insight
Volatility shocks decay with a half-life of 38 trading days, meaning a shock loses half its impact after approximately 38 days.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0169 | 21.13*** |
α ARCH Response to squared shocks | 0.1038 | 41.60*** |
β GARCH Volatility persistence | 0.8780 | 325.20*** |
Persistence:
0.982
Half-life:
38 days
Other State Street Consumer Staples Select Sector SPDR ETF Analyses
Other GARCH Analyses on ETFs