Henry Hub Natural Gas GAS-GARCH Student T Volatility Analysis
Volatility prediction for Thursday, July 16th, 2026
1 Day
44.03%
decreased by 1.83%
1 Week
44.36%
decreased by 1.50%
1 Month
45.57%
decreased by 0.29%
Analysis last updated: Thursday, July 16, 2026 at 05:17 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 30, 2000 to Jul 10, 2026Model Insight
With persistence 0.992, volatility shocks have a half-life of 82 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 6.49 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 14.4951 | 6.48*** |
α ARCH Response to squared shocks | 0.0636 | 37.09*** |
β GARCH Volatility persistence | 0.9915 | 862.96*** |
ν DF Student-t tail thickness | 6.4891 | 7.94*** |
Persistence:
0.992
Half-life:
82 days
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