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V-Lab

CBOT Corn GJR-GARCH Volatility Analysis

Volatility prediction for Friday, August 7th, 2026

1 Day

25.52%

decreased by 0.85%

1 Week

25.70%

decreased by 0.67%

1 Month

26.35%

decreased by 0.02%

Analysis last updated: Friday, August 7, 2026 at 05:14 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CBOT Corn GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 17, 2000 to Jul 31, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 40% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0578
18.72***
α

ARCH

Response to squared shocks

0.0624
17.57***
β

GARCH

Volatility persistence

0.9100
373.09***
γ

leverage

Additional response to negative shocks

0.0250
3.40***

Persistence:

0.985

Half-life:

45 days