V-Lab
S&P GSCI All Crude Spot Index MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
38.42%
decreased by 1.26%
1 Week
38.48%
decreased by 1.20%
1 Month
38.69%
decreased by 0.99%
Analysis last updated: Saturday, September 19, 2026 at 12:03 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 18, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 85% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 85% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 126 | |
| αARCH | 0.0534 | 4.41*** |
| βGARCH | 0.8993 | 84.65*** |
| γleverage | 0.0451 | 3.18*** |
| λ₁tau intercept | 0.0216 | 0.86 |
| λ₂forecast adj. | 0.0344 | 1.27 |
| λ₃tau persistence | 0.9613 | 30.59*** |
0.975
Persistence28d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 126 | |
α ARCH Response to squared shocks | 0.0534 | 4.41*** |
β GARCH Volatility persistence | 0.8993 | 84.65*** |
γ leverage Additional response to negative shocks | 0.0451 | 3.18*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0216 | 0.86 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0344 | 1.27 |
λ₃ tau persistence Long-term factor persistence | 0.9613 | 30.59*** |
Persistence:
0.975
Half-life:
28 days
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