iShares Global Clean Energy Index ETF Asy. MEM Volatility Analysis
Volatility prediction for Monday, July 20th, 2026
1 Day
52.77%
increased by 15.35%
1 Week
51.58%
increased by 14.16%
1 Month
47.97%
increased by 10.55%
Analysis last updated: Saturday, July 18, 2026 at 09:57 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 3, 2022 to Jul 17, 2026Model Insight
Volatility shocks decay with a half-life of 13 trading days, meaning a shock loses half its impact after approximately 13 days.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3094 | 6.01*** |
α ARCH Response to squared shocks | 0.0619 | 3.72*** |
β GARCH Volatility persistence | 0.8764 | 67.20*** |
γ leverage Additional response to negative shocks | 0.0204 | 0.60 |
Persistence:
0.948
Half-life:
13 days
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