NY Harbor ULSD Heating Oil Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, October 30th, 2026
1 Day
37.48%
decreased by 0.83%
1 Week
37.81%
decreased by 0.50%
1 Month
38.93%
increased by 0.62%
Analysis last updated: Friday, October 30, 2026 at 05:15 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 23, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 26 trading days.
τ
Zero Slope Spline-GARCH Model
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Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.2275 | 7.00*** |
| αARCH | 0.0965 | 7.13*** |
| βGARCH | 0.8774 | 61.82*** |
Spline Coefficients
K=3
| γ1 | -0.0120 | -1.96** |
| γ2 | 0.0276 | 3.06*** |
| γ3 | -0.0223 | -4.48*** |
0.974
Persistence26d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2275 | 7.00*** |
α ARCH Response to squared shocks | 0.0965 | 7.13*** |
β GARCH Volatility persistence | 0.8774 | 61.82*** |
Spline Coefficients
K=3
| γ1 | -0.0120 | -1.96** |
| γ2 | 0.0276 | 3.06*** |
| γ3 | -0.0223 | -4.48*** |
Persistence:
0.974
Half-life:
26 days
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