SEI Select Small CAP ETF GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, July 22nd, 2026
1 Day
18.69%
decreased by 0.30%
1 Week
19.15%
increased by 0.16%
1 Month
20.31%
increased by 1.32%
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
Volatility shocks decay with a half-life of 10 trading days, meaning a shock loses half its impact after approximately 10 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1325 | 2.79*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8764 | 38.22*** |
γ leverage Additional response to negative shocks | 0.1098 | 2.36** |
Persistence:
0.931
Half-life:
10 days
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