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V-Lab

CBOT Corn GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 31st, 2026

1 Day

26.16%

decreased by 0.93%

1 Week

26.32%

decreased by 0.77%

1 Month

26.88%

decreased by 0.21%

Analysis last updated: Sunday, August 30, 2026 at 04:19 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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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 Aug 28, 2026

Model Insight

Volatility shocks decay with a half-life of 46 trading days, meaning a shock loses half its impact after approximately 46 days.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0574
4.67***
α

ARCH

Response to squared shocks

0.0618
4.38***
β

GARCH

Volatility persistence

0.9107
93.75***
γ

leverage

Additional response to negative shocks

0.0251
0.86

Persistence:

0.985

Half-life:

46 days