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V-Lab

S&P GSCI Corn Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

21.04%

decreased by 0.86%

1 Week

21.11%

decreased by 0.79%

1 Month

21.38%

decreased by 0.52%

Analysis last updated: Friday, July 24, 2026 at 11:13 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Corn Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 24, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 15% more than equivalent positive returns.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

41
α

ARCH

Response to squared shocks

0.0715
33.27***
β

GARCH

Volatility persistence

0.8899
214.68***
γ

leverage

Additional response to negative shocks

0.0110
4.26***
λ₁

tau intercept

Baseline long-term coefficient

0.0016
7.12***
λ₂

forecast adj.

Forecast performance sensitivity

0.0102
8.56***
λ₃

tau persistence

Long-term factor persistence

0.9892
753.94***

Persistence:

0.967

Half-life:

21 days