V-Lab
S&P GSCI Lead Spot Index MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
12.98%
increased by 0.18%
1 Week
13.32%
increased by 0.52%
1 Month
13.72%
increased by 0.92%
Analysis last updated: Monday, August 24, 2026 at 11:10 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 6, 1995 to Aug 21, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 39% more than equivalent positive returns.
σ
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0685 | 15.25*** |
β GARCH Volatility persistence | 0.6860 | 37.36*** |
γ leverage Additional response to negative shocks | 0.0266 | 4.98*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0047 | 0.87 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0261 | 2.41** |
λ₃ tau persistence Long-term factor persistence | 0.9723 | 81.83*** |
Persistence:
0.768
Half-life:
3 days
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