V-Lab
State Street Energy Select Sector SPDR ETF EGARCH Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
24.51%
increased by 0.57%
1 Week
24.59%
increased by 0.65%
1 Month
24.90%
increased by 0.96%
Analysis last updated: Friday, August 7, 2026 at 10:49 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
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 162% more than equivalent positive returns.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0167 | 8.49*** |
α ARCH Response to squared shocks | 0.1428 | 35.30*** |
β GARCH Volatility persistence | 0.9849 | 1,151.88*** |
γ leverage Additional response to negative shocks | -0.0639 | -19.13*** |
Persistence:
0.985
Half-life:
45 days
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