Henry Hub Natural Gas MF2-GARCH Volatility Analysis
Volatility prediction for Thursday, October 29th, 2026
1 Day
55.75%
1 Week
56.10%
1 Month
57.45%
Analysis last updated: Thursday, October 29, 2026 at 05:16 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 30, 2000 to Oct 23, 2026Model Insight
With persistence 0.996, volatility shocks have a half-life of 165 trading days (~0.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
MF2-GARCH Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 106 | |
| αARCH | 0.0846 | 6.52*** |
| βGARCH | 0.9106 | 133.58*** |
| γleverage | 0.0011 | 0.05 |
| λ₁tau intercept | 9.9999 | 1.94* |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.6778 | 4.63*** |
0.996
Persistence165d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 106 | |
α ARCH Response to squared shocks | 0.0846 | 6.52*** |
β GARCH Volatility persistence | 0.9106 | 133.58*** |
γ leverage Additional response to negative shocks | 0.0011 | 0.05 |
λ₁ tau intercept Baseline long-term coefficient | 9.9999 | 1.94* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.6778 | 4.63*** |
Persistence:
0.996
Half-life:
165 days
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