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V-Lab
V-Lab

S&P GSCI Sugar Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

30.69%

decreased by 0.81%

1 Week

30.78%

decreased by 0.72%

1 Month

31.10%

decreased by 0.40%

Analysis last updated: Saturday, September 19, 2026 at 12:03 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Sugar 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 Sep 18, 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

Shock decay: Shocks decay with a 3-day half-life
ParamValuet-stat
mwindow26
αARCH0.0329
2.81***
βGARCH0.7502
11.34***
γleverage0.0243
1.61
λ₁tau intercept0.0277
3.08***
λ₂forecast adj.0.0445
4.90***
λ₃tau persistence0.9480
90.02***

0.795

Persistence

3d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

26
α

ARCH

Response to squared shocks

0.0329
2.81***
β

GARCH

Volatility persistence

0.7502
11.34***
γ

leverage

Additional response to negative shocks

0.0243
1.61
λ₁

tau intercept

Baseline long-term coefficient

0.0277
3.08***
λ₂

forecast adj.

Forecast performance sensitivity

0.0445
4.90***
λ₃

tau persistence

Long-term factor persistence

0.9480
90.02***

Persistence:

0.795

Half-life:

3 days