State Street Utilities Select Sector SPDR ETF EGARCH Volatility Analysis
Volatility prediction for Thursday, July 16th, 2026
1 Day
17.17%
increased by 0.79%
1 Week
17.22%
increased by 0.84%
1 Month
17.42%
increased by 1.04%
Analysis last updated: Wednesday, July 15, 2026 at 10:12 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 22, 1998 to Jul 10, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 109% more than equivalent positive returns.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0066 | 5.91*** |
α ARCH Response to squared shocks | 0.1596 | 34.02*** |
β GARCH Volatility persistence | 0.9784 | 1,050.96*** |
γ leverage Additional response to negative shocks | -0.0562 | -13.52*** |
Persistence:
0.978
Half-life:
32 days
Other State Street Utilities Select Sector SPDR ETF Analyses
Other EGARCH Analyses on ETFs