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NY Harbor ULSD Heating Oil GJR-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

45.55%

decreased by 1.99%

1 Week

45.51%

decreased by 2.03%

1 Month

45.39%

decreased by 2.15%

Analysis last updated: Saturday, September 19, 2026 at 04:08 AM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of NY Harbor ULSD Heating Oil GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 4, 2000 to Sep 18, 2026

Model Insight

With persistence 0.990, volatility shocks have a half-life of 71 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 ~71 days
ParamValuet-stat
ωconst0.0734
5.03***
αARCH0.0919
4.58***
βGARCH0.8971
79.65***
γleverage0.0027
0.09

0.990

Persistence

71d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0734
5.03***
α

ARCH

Response to squared shocks

0.0919
4.58***
β

GARCH

Volatility persistence

0.8971
79.65***
γ

leverage

Additional response to negative shocks

0.0027
0.09

Persistence:

0.990

Half-life:

71 days