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	param	t-stat
$ω$	0.0508	11.35
$α$	0.1012	35.79
$β$	0.8988	221.16
$γ$	0.2499	6.92
$δ$	0.9438	20.83

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Quest Diagnostics Inc APARCH Volatility Analysis

Volatility Prediction for Thursday, February 19th, 2026:27.22% (-0.93%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Quest Diagnostics Inc Analyses