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	param	t-stat
$ω$	0.1082	12.38
$α$	0.0774	15.16
$β$	0.8805	214.85
$γ$	0.0222	1.97

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Quest Diagnostics Inc GJR-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:34.45% (-1.84%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Quest Diagnostics Inc Analyses