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	param	t-stat
$ω$	0.4966	5.77
$α$	0.1160	7.60
$β$	0.8321	34.48
$γ_{1}$	0.0322	1.17
$γ_{2}$	0.0017	0.04
$γ_{3}$	-0.1288	-3.70
$γ_{4}$	0.1404	4.29
$γ_{5}$	-0.0531	-1.61
$γ_{6}$	0.0323	0.71
$γ_{7}$	-0.0496	-0.89
$γ_{8}$	0.0316	0.68

V-Lab

Avista Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:22.32% (+0.65%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Avista Corp Analyses