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	param	t-stat
$ω$	0.9135	4.91
$α$	0.0367	3.88
$β$	0.9432	69.58
$γ_{1}$	0.0041	0.15
$γ_{2}$	-0.0002	-0.00
$γ_{3}$	0.0412	1.21
$γ_{4}$	-0.1340	-5.68
$γ_{5}$	0.1504	8.31
$γ_{6}$	-0.0816	-5.26
$γ_{7}$	0.0242	2.08

V-Lab

S&P GSCI Zinc Index Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:22.49% (-0.37%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other S&P GSCI Zinc Index Analyses