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	param	t-stat
$ω$	1.9949	4.86
$α$	0.0694	2.42
$β$	0.7507	10.53
$ν$	4.6106	0.57

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WEBs SPY Defined Volatility ETF GAS-GARCH Student T Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:24.59% (+2.64%)

Date Range:

Parameter Estimates

Other WEBs SPY Defined Volatility ETF Analyses