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V-Lab

S&P GSCI Light Energy Spot Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

11.84%

decreased by 0.19%

1 Week

12.08%

increased by 0.05%

1 Month

12.56%

increased by 0.53%

Analysis last updated: Saturday, September 19, 2026 at 12:04 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P GSCI Light Energy Spot 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
Stationarity Enforced

Model Insight

Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days.

σ

MF2-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 9-day half-life
ParamValuet-stat
mwindow46
αARCH0.0551
4.70***
βGARCH0.8642
39.56***
γleverage0.0204
1.50
λ₁tau intercept0.0025
1.99**
λ₂forecast adj.0.0485
3.98***
λ₃tau persistence0.9487
73.33***

0.929

Persistence

9d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

46
α

ARCH

Response to squared shocks

0.0551
4.70***
β

GARCH

Volatility persistence

0.8642
39.56***
γ

leverage

Additional response to negative shocks

0.0204
1.50
λ₁

tau intercept

Baseline long-term coefficient

0.0025
1.99**
λ₂

forecast adj.

Forecast performance sensitivity

0.0485
3.98***
λ₃

tau persistence

Long-term factor persistence

0.9487
73.33***

Persistence:

0.929

Half-life:

9 days