Calamos Convertible Opportunities & Income Fund (CHI)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Ubs Group Ag	1,822,128	$17,474,208	0%
2.	Bank Of America Corp	1,478,279	$14,176,693	0%
3.	Morgan Stanley	1,475,803	$14,152,951	0%
4.	Wells Fargo & Company	1,366,671	$13,106,376	0%
5.	D.a. Davidson & Co.	940,247	$9,016,970	0.07%