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V-Lab

S&P GSCI Copper Spot Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

20.64%

decreased by 0.98%

1 Week

20.42%

decreased by 1.20%

1 Month

20.43%

decreased by 1.19%

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 Copper 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

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 143% more than equivalent positive returns.

σ

MF2-GARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 143% more than positive returns
ParamValuet-stat
mwindow21
αARCH0.0387
3.39***
βGARCH0.8116
23.47***
γleverage0.0555
3.18***
λ₁tau intercept0.0105
2.40**
λ₂forecast adj.0.0281
4.11***
λ₃tau persistence0.9667
115.79***

0.878

Persistence

5d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.0387
3.39***
β

GARCH

Volatility persistence

0.8116
23.47***
γ

leverage

Additional response to negative shocks

0.0555
3.18***
λ₁

tau intercept

Baseline long-term coefficient

0.0105
2.40**
λ₂

forecast adj.

Forecast performance sensitivity

0.0281
4.11***
λ₃

tau persistence

Long-term factor persistence

0.9667
115.79***

Persistence:

0.878

Half-life:

5 days