CBOT Soybeans GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 17th, 2026
1 Day
21.24%
decreased by 0.56%
1 Week
21.36%
decreased by 0.44%
1 Month
21.80%
increased by 0.00%
Analysis last updated: Friday, July 17, 2026 at 05:16 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 15, 2000 to Jul 10, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 33% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0287 | 16.13*** |
α ARCH Response to squared shocks | 0.0761 | 18.75*** |
β GARCH Volatility persistence | 0.9229 | 468.69*** |
γ leverage Additional response to negative shocks | -0.0187 | -3.43*** |
Persistence:
0.990
Half-life:
67 days
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