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	param	t-stat
$ω$	1.0236	5.20
$α$	0.0796	3.99
$β$	0.8997	38.73
$γ_{1}$	-0.0055	-0.09

V-Lab

Hennessy Sustainable ETF Spline-GARCH Volatility Analysis

Volatility Prediction for Thursday, February 12th, 2026:13.67% (-0.32%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Hennessy Sustainable ETF Analyses