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	param	t-stat
$ω$	0.0278	31.72
$α$	0.0844	30.50
$β$	0.9060	378.15
$γ$	0.8214	19.07
$δ$	1.1090	42.30

V-Lab

S&P 100 Index APARCH Volatility Analysis

Volatility Prediction for Tuesday, January 20th, 2026:10.15% (-0.21%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other S&P 100 Index Analyses