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	param	t-stat
$ω$	0.7400	8.37
$α$	0.0964	7.83
$β$	0.8339	45.16
$γ_{1}$	-0.0824	-2.73
$γ_{2}$	0.1461	3.15
$γ_{3}$	-0.1521	-4.71
$γ_{4}$	0.1690	5.65
$γ_{5}$	-0.1421	-4.57
$γ_{6}$	0.1049	3.29
$γ_{7}$	-0.0479	-1.41
$γ_{8}$	0.0135	0.38
$γ_{9}$	-0.0723	-1.61

V-Lab

Northwest Natural Gas Co Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:19.22% (-0.26%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Northwest Natural Gas Co Analyses