S&P GSCI Heating Oil Index EGARCH Volatility Analysis
Volatility prediction for Thursday, July 16th, 2026
1 Day
52.52%
decreased by 2.14%
1 Week
52.06%
decreased by 2.60%
1 Month
50.44%
decreased by 4.22%
Analysis last updated: Wednesday, July 15, 2026 at 11:04 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Jul 10, 2026Model Insight
Volatility shocks decay with a half-life of 48 trading days, meaning a shock loses half its impact after approximately 48 days.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0256 | 22.28*** |
α ARCH Response to squared shocks | 0.1571 | 31.40*** |
β GARCH Volatility persistence | 0.9856 | 1,430.45*** |
γ leverage Additional response to negative shocks | -0.0075 | -1.89* |
Persistence:
0.986
Half-life:
48 days
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