V-Lab
ICE US Coffee Arabica MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
35.28%
1 Week
35.94%
1 Month
37.00%
Analysis last updated: Saturday, September 12, 2026 at 04:06 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
This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.
MF2-GARCH Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.0762 | 5.78*** |
| βGARCH | 0.8508 | 31.08*** |
| γleverage | -0.0728 | -4.63*** |
| λ₁tau intercept | 0.0211 | 1.50 |
| λ₂forecast adj. | 0.0127 | 3.04*** |
| λ₃tau persistence | 0.9826 | 149.95*** |
0.891
Persistence6d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0762 | 5.78*** |
β GARCH Volatility persistence | 0.8508 | 31.08*** |
γ leverage Additional response to negative shocks | -0.0728 | -4.63*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0211 | 1.50 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0127 | 3.04*** |
λ₃ tau persistence Long-term factor persistence | 0.9826 | 149.95*** |
Persistence:
0.891
Half-life:
6 days
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