Xtrackers S&P 100 Ex Top 20 ETF GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, July 22nd, 2026
1 Day
12.53%
decreased by 0.75%
1 Week
12.65%
decreased by 0.63%
1 Month
12.83%
decreased by 0.45%
Analysis last updated: Tuesday, July 21, 2026 at 09:24 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 28, 2022 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1088 | 8.67*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.7345 | 33.24*** |
γ leverage Additional response to negative shocks | 0.2035 | 4.39*** |
Persistence:
0.836
Half-life:
4 days
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