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V-Lab

S&P GSCI Cotton Index MF2-GARCH Volatility Analysis

Volatility prediction for Friday, August 7th, 2026

1 Day

21.71%

decreased by 0.55%

1 Week

22.11%

decreased by 0.15%

1 Month

22.24%

decreased by 0.02%

Analysis last updated: Thursday, August 6, 2026 at 11:04 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Cotton 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 31, 2026

Model Insight

Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.0631
15.67***
β

GARCH

Volatility persistence

0.7382
24.91***
γ

leverage

Additional response to negative shocks

0.0029
0.76
λ₁

tau intercept

Baseline long-term coefficient

0.0243
1.29
λ₂

forecast adj.

Forecast performance sensitivity

0.0573
1.84*
λ₃

tau persistence

Long-term factor persistence

0.9329
25.57***

Persistence:

0.803

Half-life:

3 days