Flaherty & Crumrine Preferred Income Opportunity Fund (PFO) SEC Filings & 10K Form $9.19 -0.02 (-0.17%) Closing price 03:38 PM EasternExtended Trading$9.20 +0.00 (+0.01%) As of 04:05 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share SEC Filings Stock AnalysisChartCompetitorsDividendFinancialsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Recent Flaherty & Crumrine Preferred Income Opportunity Fund SEC Filings All Filing Types 1 10 10-D 10-K 10-M 10-Q 11-K 12b-25 13F 13H 144 15 15F 17-H 18 18-K 19b-4(e) 19b-4 19b-7 1-A 1-E 1-K 1-N 1-SA 1-U 1-Z 20-F 24F-2 25 2-E 3 4 40-F 5 6-K 7-M 8-A 8-K 8-M 9-M ABS DD-15E ABS-15G ABS-EE ADV ADV-E ADV-H ADV-NR ADV-W ATS ATS-R BD BD-N BDW C CA-1 CB CFPORTAL D F-1 F-10 F-3 F-4 F-6 F-7 F-8 F-80 F-N F-X ID MA MA-I MA-NR MA-W MSD MSDW n/a N-14 N-17D-1 N-17f-1 N-17f-2 N-18f-1 N-1A N-2 N-23c-3 N-27D-1 N-3 N-4 N-5 N-54A N-54C N-6 N-6EI-1 N-6F N-8A N-8B-2 N-8B-4 N-8F N-CR N-CSR N-MFP N-PX N-Q NRSRO N-SAR PF PILOT R31 S-1 S-11 S-20 S-3 S-4 S-6 S-8 SBSE SBSE-A SBSE-BD SBSE-C SBSE-W SCI SD SDR SE SF-1 SF-3 SIP T-1 T-2 T-3 T-4 T-6 TA-1 TA-2 TA-W TCR TH WB-APP X-17A-19 X-17A-5 Part I X-17A-5 Part II X-17A-5 Part IIA X-17A-5 Part IIB X-17A-5 Part III X-17A-5 Schedule I X-17F-1A Filing Types Include Ownership Filings Exclude Ownership Filings Only Show Ownership FIlings Ownership Filings Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel DateFilerForm TypeView03/17/20253:39 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form DEF 14A03/06/20251:54 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form PRE 14A02/06/20256:57 AMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form N-CENAnnual Report for Registered Investment Companies 02/04/20251:06 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form N-CSRCertified shareholder report of registered management investment companies 01/28/202512:00 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT10/28/202410:40 AMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT08/20/20241:20 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form N-PXAnnual Report of Proxy Voting Record of Registered Management Investment Company 07/30/20249:49 AMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form N-CSRS07/24/20241:08 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT06/05/20241:09 PMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form 40-17G04/24/202411:10 AMFlaherty & Crumrine Preferred Income Opportunity Fund (Filer)Form NPORT-PMonthly Portfolio Investments Report on Form NPORT(Data available from 1/1/2016 forward) Remove Ads Related Companies and Tools Related Companies abrdn Global Premier Properties Fund 10Q Form Abrdn Healthcare Opportunities Fund 10Q Form Abrdn World Healthcare Fund 10Q Form Advent Convertible and Income Fund 10Q Form AllianceBernstein National Municipal Income Fund 10Q Form Ares Dynamic Credit Allocation Fund 10Q Form BlackRock California Municipal Income Trust 10Q Form BlackRock Core Bond Trust 10Q Form BlackRock Credit Allocation Income Trust 10Q Form BlackRock Debt Strategies Fund 10Q Form SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (NYSE:PFO) was last updated on 3/27/2025 by MarketBeat.com Staff From Our PartnersA market crash is coming—here’s whenThe stock market cycle I've used to identify the most likely day of the next market crash is the exact same in...Chaikin Analytics | SponsoredYour Wealth is Under AttackPlease don't wait—this is your moment to take action. 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