SEI Select Small CAP ETF EGARCH Volatility Analysis
Volatility prediction for Wednesday, July 22nd, 2026
1 Day
17.74%
decreased by 1.36%
1 Week
17.93%
decreased by 1.17%
1 Month
18.55%
decreased by 0.55%
Analysis last updated: Tuesday, July 21, 2026 at 09:31 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 10, 2024 to Jul 17, 2026Model Insight
The leverage effect is captured by the negative gamma (gamma = -0.1371), confirming that negative shocks increase volatility more than positive shocks of equal magnitude.
σ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0180 | 0.46 |
α ARCH Response to squared shocks | -0.0306 | -5.36*** |
β GARCH Volatility persistence | 0.9676 | 69.37*** |
γ leverage Additional response to negative shocks | -0.1371 | -13.65*** |
Persistence:
0.968
Half-life:
21 days
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