<SEC-DOCUMENT>0001752724-19-148656-index.html : 20191024
<SEC-HEADER>0001752724-19-148656.hdr.sgml : 20191024
<ACCEPTANCE-DATETIME>20191024125057
ACCESSION NUMBER:		0001752724-19-148656
CONFORMED SUBMISSION TYPE:	NPORT-EX
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190831
FILED AS OF DATE:		20191024

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC
		CENTRAL INDEX KEY:			0000882071
		IRS NUMBER:				954355600
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		NPORT-EX
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06495
		FILM NUMBER:		191165711

	BUSINESS ADDRESS:	
		STREET 1:		301 E COLORADO BLVD STE 720
		STREET 2:		C/O FLAHERTY & CRUMRINE INC
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91101
		BUSINESS PHONE:		(626) 795-7300

	MAIL ADDRESS:	
		STREET 1:		301 COLORADO BLVD STE 720
		STREET 2:		C/O FLAHERTY & CRUMRINE INC
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Flaherty & Crumrine PREFERRED INCOME OPPORTUNITY FUND INC
		DATE OF NAME CHANGE:	20050708

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PREFERRED INCOME OPPORTUNITY FUND INC
		DATE OF NAME CHANGE:	19920929
<MULTI-ACCESSION-NUMBERS>
ACCESSION NUMBER:		0001752724-19-146315
</MULTI-ACCESSION-NUMBERS>
</SEC-HEADER>
<DOCUMENT>
<TYPE>NPORT-EX
<SEQUENCE>1
<FILENAME>Flaherty_Crumrine_PrefIncOpp.htm
<TEXT>
Document 1 - file: Flaherty_Crumrine_PrefIncOpp.htm

</DOCUMENT>
</SEC-DOCUMENT>