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Henry Hub Natural Gas Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, October 12th, 2026

1 Day

52.97%

decreased by 1.03%

1 Week

54.44%

increased by 0.44%

1 Month

59.46%

increased by 5.46%

Analysis last updated: Saturday, October 10, 2026 at 04:05 AM UTC

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Date Range:

from

10/09/2024

to

10/09/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Henry Hub Natural Gas S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 30, 2000 to Oct 9, 2026

Model 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 44 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.4439
6.50***
αARCH0.0841
8.98***
βGARCH0.9003
95.84***
∑γi Spline Coefficients
K=4
γ10.0075
0.51
γ2-0.0168
-0.70
γ30.0362
2.09**
γ4-0.0433
-3.80***

0.984

Persistence

44d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.4439
6.50***
α

ARCH

Response to squared shocks

0.0841
8.98***
β

GARCH

Volatility persistence

0.9003
95.84***
∑γi Spline Coefficients
K=4
γ10.0075
0.51
γ2-0.0168
-0.70
γ30.0362
2.09**
γ4-0.0433
-3.80***

Persistence:

0.984

Half-life:

44 days