Latest Period
Q1 2026
Security Snapshot
Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC - Common Stock (PFO) Institutional Ownership
CUSIP: 33848E106
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
51
Shares (Excl. Options)
4,406,066
Price
$9.04
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- Security type / class
- Equity / Common Stock
- Symbol
- PFO on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 4,406,066
- Total 13F value
- $39,849,381
- Portfolio coverage rank
- 0%
- Share change
- +652,940
- Value change
- +$5,890,994
- Number of holders
- 51
- Shares outstanding
- 13,024,961
- SEC-reported price per share
- $9.04
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- PFO - Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC - Common Stock is tracked under CUSIP 33848E106.
- 51 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 44 to 51 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $41,030,111 to $39,849,381.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 51 institutions filings for Q1 2026.
Security key
33848E106
Latest holder period
Q1 2026
13F holders
51
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
PFO full holder history
Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC SEC filings
Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 33848E106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
PFO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| SIT INVESTMENT ASSOCIATES INC | 10% | +102% | $12,554,760 | +$6,229,572 | 1,328,546 | +98% | Sit Investment Associates, Inc. | 31 Dec 2025 |
As of 31 Mar 2026, 51 institutional investors reported holding 4,406,066 shares of Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC - Common Stock (PFO). This represents 34% of the company’s total 13,024,961 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
33%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| SIT INVESTMENT ASSOCIATES INC | 12% | 1,520,306 | +14% | 0.28% | $13,744,000 |
| CIBC Bancorp USA Inc. | 4.5% | 588,511 | 0.01% | $5,320,139 | |
| Advisors Asset Management, Inc. | 2.7% | 350,620 | +13% | 0.05% | $3,169,605 |
| 1607 Capital Partners, LLC | 2.5% | 321,580 | +22% | 0.21% | $2,907,083 |
| Pathstone Holdings, LLC | 2.1% | 270,782 | -20% | 0.01% | $2,447,869 |
| Private Advisor Group, LLC | 1.4% | 186,341 | -2% | 0.01% | $1,684,518 |
| Fiera Capital Corp | 0.96% | 125,260 | -3.5% | 0% | $1,132,350 |
| Noble Wealth Management PBC | 0.75% | 97,449 | +2.2% | 0.45% | $880,941 |
| MORGAN STANLEY | 0.73% | 94,830 | +4.8% | 0% | $857,263 |
| Closed-End Fund Advisors, Inc. | 0.73% | 94,733 | -1.5% | 0.87% | $856,386 |
| D.A. DAVIDSON & CO. | 0.66% | 85,315 | -0.21% | 0% | $771,256 |
| MUSTICO FINANCIAL GROUP, INC. | 0.63% | 81,412 | +0.09% | 0.62% | $754,283 |
| Cambridge Investment Research Advisors, Inc. | 0.52% | 67,311 | +6.6% | 0% | $608,000 |
| LPL Financial LLC | 0.33% | 43,504 | +6.8% | 0% | $393,274 |
| WELLS FARGO & COMPANY/MN | 0.33% | 43,080 | -8.3% | 0% | $389,445 |
| Baird Financial Group, Inc. | 0.33% | 42,504 | -0.78% | 0% | $384,236 |
| Sowell Financial Services LLC | 0.3% | 39,073 | 0% | 0.01% | $353,220 |
| Smith Asset Management Co., LLC | 0.24% | 31,818 | 0.25% | $287,635 | |
| CLIFFORD SWAN INVESTMENT COUNSEL LLC | 0.23% | 29,500 | 0% | 0.01% | $266,680 |
| GUGGENHEIM CAPITAL LLC | 0.2% | 25,611 | +4.4% | 0% | $231,524 |
| Independent Advisor Alliance | 0.17% | 22,140 | 0% | $200,146 | |
| TrueMark Investments, LLC | 0.16% | 21,043 | -70% | 0.04% | $190,229 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 0.16% | 21,043 | -81% | 0.01% | $190,229 |
| Catalina Capital Group, LLC | 0.14% | 18,823 | 0% | 0.1% | $170,160 |
| Invesco Ltd. | 0.14% | 18,471 | -56% | 0% | $166,978 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 4,406,066 | $39,849,381 | +$5,890,994 | $9.04 | 51 |
| 2025 Q4 | 4,341,637 | $41,030,111 | +$2,855,989 | $9.45 | 44 |
| 2025 Q3 | 4,006,694 | $38,983,655 | +$8,170,567 | $9.75 | 45 |
| 2025 Q2 | 3,087,846 | $28,565,757 | +$423,188 | $9.25 | 47 |
| 2025 Q1 | 3,068,667 | $28,187,147 | +$772,785 | $9.22 | 46 |
| 2024 Q4 | 2,986,032 | $26,945,760 | +$2,523,292 | $9.01 | 44 |
| 2024 Q3 | 2,528,406 | $23,712,552 | +$4,517,555 | $9.41 | 47 |
| 2024 Q2 | 2,078,743 | $17,599,851 | +$2,000,948 | $8.47 | 48 |
| 2024 Q1 | 1,842,151 | $15,548,159 | +$143,316 | $8.44 | 43 |
| 2023 Q4 | 1,829,820 | $14,573,255 | +$2,786,708 | $7.96 | 46 |
| 2023 Q3 | 1,468,435 | $10,923,367 | +$1,698,507 | $7.44 | 41 |
| 2023 Q2 | 1,236,968 | $9,910,056 | +$226,072 | $8.01 | 37 |
| 2023 Q1 | 1,192,285 | $9,909,811 | +$1,045,450 | $8.25 | 37 |
| 2022 Q4 | 1,076,264 | $9,319,415 | -$500,321 | $8.60 | 43 |
| 2022 Q3 | 1,146,833 | $9,843,925 | +$1,594,882 | $8.57 | 42 |
| 2022 Q2 | 960,085 | $9,148,767 | -$172,815 | $9.52 | 40 |
| 2022 Q1 | 970,781 | $11,171,602 | +$439,072 | $11.50 | 38 |
| 2021 Q4 | 942,491 | $12,018,500 | +$1,039,251 | $12.75 | 41 |
| 2021 Q3 | 861,511 | $11,043,395 | -$569,974 | $12.82 | 40 |
| 2021 Q2 | 901,822 | $12,038,589 | +$290,852 | $13.35 | 39 |
| 2021 Q1 | 880,363 | $11,589,630 | -$478,577 | $13.16 | 40 |
| 2020 Q4 | 916,207 | $12,012,259 | +$753,300 | $13.12 | 38 |
| 2020 Q3 | 813,010 | $9,675,131 | +$529,148 | $11.90 | 37 |
| 2020 Q2 | 841,206 | $9,355,673 | -$992,427 | $11.12 | 34 |
| 2020 Q1 | 935,122 | $9,260,740 | +$127,332 | $9.90 | 36 |