SEI Select Small CAP ETF Asy. MEM Volatility Analysis
Volatility prediction for Wednesday, July 22nd, 2026
1 Day
18.68%
decreased by 0.85%
1 Week
19.25%
decreased by 0.28%
1 Month
20.26%
increased by 0.73%
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 11, 2024 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2286 | 8.86*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.7645 | 48.37*** |
γ leverage Additional response to negative shocks | 0.2107 | 6.16*** |
Persistence:
0.870
Half-life:
5 days
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