<SEC-DOCUMENT>0001193125-15-027633-index.html : 20150130 <SEC-HEADER>0001193125-15-027633.hdr.sgml : 20150130 <ACCEPTANCE-DATETIME>20150130154400 ACCESSION NUMBER: 0001193125-15-027633 CONFORMED SUBMISSION TYPE: N-CSR PUBLIC DOCUMENT COUNT: 9 CONFORMED PERIOD OF REPORT: 20141130 FILED AS OF DATE: 20150130 DATE AS OF CHANGE: 20150130 EFFECTIVENESS DATE: 20150130 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: N-CSR SEC ACT: 1940 Act SEC FILE NUMBER: 811-06495 FILM NUMBER: 15562969 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: PREFERRED INCOME OPPORTUNITY FUND INC DATE OF NAME CHANGE: 19920929 </SEC-HEADER> <DOCUMENT> <TYPE>N-CSR <SEQUENCE>1 <FILENAME>d819099dncsr.htm <DESCRIPTION>FLAHERTY & CRUMRINE PREFERRED INCOME OPPORTUNITY FUND INCORPORATED <TEXT> Document 1 - file: d819099dncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CODE ETH <SEQUENCE>2 <FILENAME>d819099dex99codeeth.htm <DESCRIPTION>CODE OF ETHICS <TEXT> Document 2 - file: d819099dex99codeeth.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>3 <FILENAME>d819099dex99cert.htm <DESCRIPTION>302 CERTIFICATIONS <TEXT> Document 3 - file: d819099dex99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>4 <FILENAME>d819099dex99906cert.htm <DESCRIPTION>906 CERTIFICATION <TEXT> Document 4 - file: d819099dex99906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g819099g06n93.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g819099g06n93.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g819099g15h91.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g819099g15h91.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g819099g44a00.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g819099g44a00.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g819099g94w21.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g819099g94w21.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g819099pie_01.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g819099pie_01.jpg
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