V-Lab
CBOT Soybeans MF2-GARCH Volatility Analysis
Volatility prediction for Friday, July 31st, 2026
1 Day
23.39%
1 Week
23.46%
1 Month
23.98%
Analysis last updated: Friday, July 31, 2026 at 05:17 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 15, 2000 to Jul 24, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 23% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 41 | |
α ARCH Response to squared shocks | 0.0712 | 12.51*** |
β GARCH Volatility persistence | 0.8966 | 62.31*** |
γ leverage Additional response to negative shocks | -0.0132 | -2.45** |
λ₁ tau intercept Baseline long-term coefficient | 0.0381 | 2.81*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0521 | 1.44 |
λ₃ tau persistence Long-term factor persistence | 0.9312 | 21.97*** |
Persistence:
0.961
Half-life:
18 days
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