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, September 15th, 2026
1 Day
59.99%
1 Week
60.01%
1 Month
60.08%
Analysis last updated: Tuesday, September 15, 2026 at 10:04 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 2000 to Sep 11, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 15234 trading days (~60.5 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
| Param | Value | t-stat |
|---|---|---|
| mwindow | 126 | |
| αARCH | 0.0320 | 5.63*** |
| βGARCH | 0.9743 | 241.10*** |
| γleverage | -0.0127 | -2.09** |
| λ₁tau intercept | 5.5582 | 5.29*** |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.9460 | 34.87*** |
1.000
Persistence15234d
Half-lifeMF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 126 | |
α ARCH Response to squared shocks | 0.0320 | 5.63*** |
β GARCH Volatility persistence | 0.9743 | 241.10*** |
γ leverage Additional response to negative shocks | -0.0127 | -2.09** |
λ₁ tau intercept Baseline long-term coefficient | 5.5582 | 5.29*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.9460 | 34.87*** |
Persistence:
1.000
Half-life:
15234 days
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