V-Lab
S&P GSCI Palladium Spot Index GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
38.73%
decreased by 1.21%
1 Week
38.72%
decreased by 1.22%
1 Month
38.69%
decreased by 1.25%
Analysis last updated: Friday, July 24, 2026 at 11:12 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 26, 2008 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 64 trading days, meaning a shock loses half its impact after approximately 64 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0630 | 15.21*** |
α ARCH Response to squared shocks | 0.0609 | 15.57*** |
β GARCH Volatility persistence | 0.9252 | 341.77*** |
γ leverage Additional response to negative shocks | 0.0062 | 0.91 |
Persistence:
0.989
Half-life:
64 days
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