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	param	t-stat
$ω$	0.0565	15.97
$α$	0.0855	36.25
$β$	0.9019	357.88

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Principal Financial Group Inc GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:25.53% (-1.05%)

Date Range:

Parameter Estimates

News Impact Curve

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