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V-Lab

CBOT Rough Rice EGARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

25.26%

increased by 0.71%

1 Week

25.55%

increased by 1.00%

1 Month

26.57%

increased by 2.02%

Analysis last updated: Saturday, August 15, 2026 at 04:05 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of CBOT Rough Rice EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 15, 1999 to Aug 14, 2026

Model Insight

Volatility shocks decay with a half-life of 23 trading days, meaning a shock loses half its impact after approximately 23 days.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0393
12.54***
α

ARCH

Response to squared shocks

0.1855
21.36***
β

GARCH

Volatility persistence

0.9706
319.48***
γ

leverage

Additional response to negative shocks

-0.0083
-1.04

Persistence:

0.971

Half-life:

23 days