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V-Lab

S&P GSCI Precious Metals Spot Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

24.11%

decreased by 0.62%

1 Week

24.36%

decreased by 0.37%

1 Month

25.17%

increased by 0.44%

Analysis last updated: Saturday, September 12, 2026 at 12:55 AM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of S&P GSCI Precious Metals 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 11, 2026
Stationarity Enforced

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 167% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

MF2-GARCH Model

Tap to view equation

Inverse leverage: Positive returns increase volatility 167% more than negative returns
ParamValuet-stat
mwindow111
αARCH0.0520
4.16***
βGARCH0.9364
70.71***
γleverage-0.0326
-2.67***
λ₁tau intercept0.0810
2.57**
λ₂forecast adj.0.9524
13.28***
λ₃tau persistence0.0000
0.00

0.972

Persistence

25d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

111
α

ARCH

Response to squared shocks

0.0520
4.16***
β

GARCH

Volatility persistence

0.9364
70.71***
γ

leverage

Additional response to negative shocks

-0.0326
-2.67***
λ₁

tau intercept

Baseline long-term coefficient

0.0810
2.57**
λ₂

forecast adj.

Forecast performance sensitivity

0.9524
13.28***
λ₃

tau persistence

Long-term factor persistence

0.0000
0.00

Persistence:

0.972

Half-life:

25 days