V-Lab
ICE US Cocoa MF2-GARCH Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Wednesday, August 5th, 2026
1 Day
73.75%
1 Week
73.77%
1 Month
73.82%
Analysis last updated: Wednesday, August 5, 2026 at 10:06 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 2000 to Jul 31, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 16119 trading days (~64.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Inverse leverage: Positive returns increase volatility 69% more than negative returns
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 126 | |
α ARCH Response to squared shocks | 0.0322 | 24.59*** |
β GARCH Volatility persistence | 0.9743 | 1,009.68*** |
γ leverage Additional response to negative shocks | -0.0131 | -8.37*** |
λ₁ tau intercept Baseline long-term coefficient | 9.9501 | 0.47 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.9074 | 4.66*** |
Persistence:
1.000
Half-life:
16119 days
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