V-Lab
iShares MSCI United Kingdom ETF MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 9th, 2026
1 Day
11.87%
increased by 0.11%
1 Week
12.33%
increased by 0.57%
1 Month
13.95%
increased by 2.19%
Analysis last updated: Tuesday, September 8, 2026 at 10:36 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 5, 1996 to Sep 4, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
MF2-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| mwindow | 76 | |
| αARCH | 0.0164 | 0.87 |
| βGARCH | 0.8620 | 72.30*** |
| γleverage | 0.1332 | 6.16*** |
| λ₁tau intercept | 0.0772 | 1.81* |
| λ₂forecast adj. | 0.3213 | 3.61*** |
| λ₃tau persistence | 0.6316 | 5.72*** |
0.945
Persistence12d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 76 | |
α ARCH Response to squared shocks | 0.0164 | 0.87 |
β GARCH Volatility persistence | 0.8620 | 72.30*** |
γ leverage Additional response to negative shocks | 0.1332 | 6.16*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0772 | 1.81* |
λ₂ forecast adj. Forecast performance sensitivity | 0.3213 | 3.61*** |
λ₃ tau persistence Long-term factor persistence | 0.6316 | 5.72*** |
Persistence:
0.945
Half-life:
12 days
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