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 Tuesday, August 25th, 2026
1 Day
65.16%
1 Week
65.17%
1 Month
65.23%
Analysis last updated: Tuesday, August 25, 2026 at 10:03 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 2000 to Aug 21, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 23105 trading days (~91.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Inverse leverage: Positive returns increase volatility 66% more than negative returns
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 111 | |
α ARCH Response to squared shocks | 0.0316 | 23.03*** |
β GARCH Volatility persistence | 0.9747 | 959.34*** |
γ leverage Additional response to negative shocks | -0.0126 | -8.05*** |
λ₁ tau intercept Baseline long-term coefficient | 4.2703 | 1.71* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.01 |
λ₃ tau persistence Long-term factor persistence | 0.9713 | 54.16*** |
Persistence:
1.000
Half-life:
23105 days
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