V-Lab
Henry Hub Natural Gas MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
34.93%
1 Week
35.69%
1 Month
38.50%
Analysis last updated: Saturday, September 12, 2026 at 04:07 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 30, 2000 to Sep 11, 2026Model Insight
With persistence 0.996, volatility shocks have a half-life of 175 trading days (~0.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
MF2-GARCH Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 106 | |
| αARCH | 0.0843 | 6.52*** |
| βGARCH | 0.9111 | 134.48*** |
| γleverage | 0.0014 | 0.07 |
| λ₁tau intercept | 10.0000 | 2.05** |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.6856 | 4.95*** |
0.996
Persistence175d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 106 | |
α ARCH Response to squared shocks | 0.0843 | 6.52*** |
β GARCH Volatility persistence | 0.9111 | 134.48*** |
γ leverage Additional response to negative shocks | 0.0014 | 0.07 |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 2.05** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.6856 | 4.95*** |
Persistence:
0.996
Half-life:
175 days
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