NY Harbor ULSD Heating Oil GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 23rd, 2026
1 Day
42.38%
increased by 1.53%
1 Week
42.40%
increased by 1.55%
1 Month
42.50%
increased by 1.65%
Analysis last updated: Friday, October 23, 2026 at 05:16 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 4, 2000 to Oct 16, 2026Model Insight
With persistence 0.990, volatility shocks have a half-life of 72 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GJR-GARCH Model
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High persistence: persistence 0.990, shock half-life ~72 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0726 | 5.01*** |
| αARCH | 0.0915 | 4.59*** |
| βGARCH | 0.8978 | 80.09*** |
| γleverage | 0.0024 | 0.08 |
0.990
Persistence72d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0726 | 5.01*** |
α ARCH Response to squared shocks | 0.0915 | 4.59*** |
β GARCH Volatility persistence | 0.8978 | 80.09*** |
γ leverage Additional response to negative shocks | 0.0024 | 0.08 |
Persistence:
0.990
Half-life:
72 days
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