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 Thursday, August 13th, 2026
1 Day
68.83%
1 Week
68.85%
1 Month
68.90%
Analysis last updated: Thursday, August 13, 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 7, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 35546 trading days (~141.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Inverse leverage: Positive returns increase volatility 53% more than negative returns
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 91 | |
α ARCH Response to squared shocks | 0.0296 | 18.36*** |
β GARCH Volatility persistence | 0.9755 | 782.93*** |
γ leverage Additional response to negative shocks | -0.0102 | -6.43*** |
λ₁ tau intercept Baseline long-term coefficient | 3.0230 | 2.47** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.01 |
λ₃ tau persistence Long-term factor persistence | 0.9857 | 134.00*** |
Persistence:
1.000
Half-life:
35546 days
Other ICE US Cocoa Analyses
Other MF2-GARCH Analyses on Commodities