V-Lab
Henry Hub Natural Gas MF2-GARCH Volatility Analysis
Volatility prediction for Monday, October 5th, 2026
1 Day
52.55%
1 Week
52.95%
1 Month
54.47%
Analysis last updated: Saturday, October 3, 2026 at 04:09 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 30, 2000 to Oct 2, 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 | 0.0849 | 6.53*** |
| βGARCH | 0.9106 | 133.40*** |
| γleverage | 0.0007 | 0.03 |
| λ₁tau intercept | 10.0000 | 1.93* |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.6774 | 4.61*** |
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 | 0.0849 | 6.53*** |
β GARCH Volatility persistence | 0.9106 | 133.40*** |
γ leverage Additional response to negative shocks | 0.0007 | 0.03 |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 1.93* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.6774 | 4.61*** |
Persistence:
0.996
Half-life:
165 days
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