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	param	t-stat
$ω$	0.0239	3.04
$α$	0.1033	10.73
$β$	0.8666	50.48
$γ$	1.0000	48.28
$δ$	0.7866	3.60

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Columbia Corporate Bond ETF APARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

Other Columbia Corporate Bond ETF Analyses