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 Monday, October 5th, 2026
1 Day
56.09%
1 Week
56.11%
1 Month
56.18%
Analysis last updated: Saturday, October 3, 2026 at 04:05 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 2000 to Oct 2, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 16503 trading days (~65.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Inverse leverage: Positive returns increase volatility 64% more than negative returns
MF2-GARCH Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 121 | |
| αARCH | 0.0320 | 5.89*** |
| βGARCH | 0.9742 | 258.97*** |
| γleverage | -0.0125 | -2.06** |
| λ₁tau intercept | 6.9789 | 4.84*** |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.9364 | 30.82*** |
1.000
Persistence16503d
Half-lifeMF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 121 | |
α ARCH Response to squared shocks | 0.0320 | 5.89*** |
β GARCH Volatility persistence | 0.9742 | 258.97*** |
γ leverage Additional response to negative shocks | -0.0125 | -2.06** |
λ₁ tau intercept Baseline long-term coefficient | 6.9789 | 4.84*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.9364 | 30.82*** |
Persistence:
1.000
Half-life:
16503 days
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