# Filing Detail

Form N-CSRS - Certified Shareholder Report, Semi-Annual:
SEC Accession No. 0001387131-23-009238
Filing Date
2023-08-03
Accepted
2023-08-03 11:26:41
Documents
19
Period of Report
2023-05-31
Effectiveness Date
2023-08-03

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | CERTIFIED SEMI-ANNUAL SHAREHOLDER REPORT | pfo-ncsrs_053123.htm iXBRL | N-CSRS | 1578151
2 | SECTION 302 CERTIFICATIONS | ex99-cert.htm | EX-99.CERT | 21133
3 | SECTION 906 CERTIFICATIONS | ex99-906.htm | EX-99.906 CERT | 6605
8 | GRAPHIC | pfo-ncsrs_053123img001.gif | GRAPHIC | 7897
9 | GRAPHIC | pfo-ncsrs_053123img002.gif | GRAPHIC | 30490
10 | GRAPHIC | pfo-ncsrs_053123img003.gif | GRAPHIC | 43122
11 | GRAPHIC | pfo-ncsrs_053123img004.gif | GRAPHIC | 31892
| Complete submission text file | 0001387131-23-009238.txt |  | 2792503

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
4 | XBRL SCHEMA FILE | pfo-20230531.xsd | EX-101.SCH | 7581
5 | XBRL DEFINITION FILE | pfo-20230531_def.xml | EX-101.DEF | 11358
6 | XBRL LABEL FILE | pfo-20230531_lab.xml | EX-101.LAB | 14469
7 | XBRL PRESENTATION FILE | pfo-20230531_pre.xml | EX-101.PRE | 10749
13 | EXTRACTED XBRL INSTANCE DOCUMENT | pfo-ncsrs_053123_htm.xml | XML | 193373

Mailing Address 301 COLORADO BLVD STE 800 C/O FLAHERTY & CRUMRINE INC PASADENA CA 91101
Business Address 301 E COLORADO BLVD STE 720 C/O FLAHERTY & CRUMRINE INC PASADENA CA 91101 (626) 795-7300
Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC (Filer) CIK: 0000882071 (see all company filings)

EIN.: 954355600 | State of Incorp.: MD | Fiscal Year End: 1130
Type: N-CSRS | Act: 40 | File No.: 811-06495 | Film No.: 231138708