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	param	t-stat
$ω$	0.3501	6.97
$α$	0.1524	17.46
$β$	0.7596	43.52
$γ$	0.1504	3.69
$δ$	1.0641	14.34

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Ecovyst Inc APARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:39.48% (+1.97%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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