V-Lab
iShares Global Clean Energy ETF MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, July 28th, 2026
1 Day
35.41%
decreased by 1.51%
1 Week
35.49%
decreased by 1.43%
1 Month
35.82%
decreased by 1.10%
Analysis last updated: Monday, July 27, 2026 at 09:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 24, 2008 to Jul 24, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 191% more than equivalent positive returns.
σ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 66 | |
α ARCH Response to squared shocks | 0.0351 | 12.16*** |
β GARCH Volatility persistence | 0.8448 | 168.41*** |
γ leverage Additional response to negative shocks | 0.0671 | 16.74*** |
λ₁ tau intercept Baseline long-term coefficient | 0.2616 | 3.31*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.7147 | 23.47*** |
λ₃ tau persistence Long-term factor persistence | 0.1914 | 4.48*** |
Persistence:
0.913
Half-life:
8 days
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