V-Lab
iShares MSCI Emerging Markets ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, August 20th, 2026
1 Day
24.34%
decreased by 0.66%
1 Week
24.20%
decreased by 0.80%
1 Month
23.77%
decreased by 1.23%
Analysis last updated: Wednesday, August 19, 2026 at 09:34 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 14, 2003 to Aug 14, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 23 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6452 | 6.25*** |
α ARCH Response to squared shocks | 0.1019 | 8.69*** |
β GARCH Volatility persistence | 0.8679 | 66.23*** |
Spline Coefficients
K=3
| γ1 | -0.0405 | -3.47*** |
| γ2 | 0.0574 | 3.46*** |
| γ3 | -0.0201 | -2.85*** |
Persistence:
0.970
Half-life:
23 days
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