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	param	t-stat
$ω$	1.3687	7.72
$α$	0.1028	10.22
$β$	0.8655	73.76
$γ_{1}$	0.0889	6.45
$γ_{2}$	-0.1404	-6.30
$γ_{3}$	0.0807	4.97
$γ_{4}$	-0.0523	-3.53
$γ_{5}$	0.0454	2.67
$γ_{6}$	-0.0317	-2.42

V-Lab

S&P 500 Index Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Thursday, January 22nd, 2026:15.08% (+0.52%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other S&P 500 Index Analyses