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	param	t-stat
$ω$	0.6243	4.47
$α$	0.1616	16.88
$β$	0.7950	66.71
$γ$	-0.0756	-2.74
$δ$	1.2643	13.08

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Rigel Pharmaceuticals Inc APARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:52.32% (-3.03%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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