Latest Period
Q2 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 Q2 2026
Institutions Reporting
50
Shares (Excl. Options)
4,043,608
Price
$9.24
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- Security type / class
- Equity / Common Stock
- Symbol
- PFO on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 4,043,608
- Total 13F value
- $37,346,928
- Portfolio coverage rank
- 0%
- Share change
- -346,906
- Value change
- -$3,123,993
- Number of holders
- 50
- Shares outstanding
- 13,024,961
- SEC-reported price per share
- $9.07
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.
- 50 institutions reported positions in Q2 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 52 to 50 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $39,878,951 to $37,346,928.
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 50 institutions filings for Q2 2026.
Security key
33848E106
Latest holder period
Q2 2026
13F holders
50
13D/G owners
1
CIK / CUSIP context first
Open Q2 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 30 Jun 2026, 50 institutional investors reported holding 4,043,608 shares of Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC - Common Stock (PFO). This represents 31% 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
30%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| SIT INVESTMENT ASSOCIATES INC | 13% | 1,720,165 | +13% | 0.3% | $15,894,000 |
| CIBC Bancorp USA Inc. | 4.5% | 588,511 | 0% | 0.01% | $5,437,842 |
| 1607 Capital Partners, LLC | 1.5% | 200,178 | -38% | 0.16% | $1,849,645 |
| Private Advisor Group, LLC | 1.3% | 175,625 | -5.8% | 0.01% | $1,622,774 |
| Fiera Capital Corp | 0.99% | 128,673 | +2.7% | 0% | $1,188,939 |
| Pathstone Holdings, LLC | 0.78% | 101,525 | -63% | 0% | $938,091 |
| Noble Wealth Management PBC | 0.77% | 100,360 | +3% | 0.42% | $927,324 |
| Closed-End Fund Advisors, Inc. | 0.73% | 94,929 | +0.21% | 0.86% | $877,144 |
| D.A. DAVIDSON & CO. | 0.69% | 89,474 | +4.9% | 0% | $826,747 |
| MUSTICO FINANCIAL GROUP, INC. | 0.64% | 83,652 | +2.8% | 0.53% | $757,083 |
| MORGAN STANLEY | 0.6% | 77,677 | -18% | 0% | $717,735 |
| Cambridge Investment Research Advisors, Inc. | 0.49% | 63,965 | -5% | 0% | $591,000 |
| Atlas Wealth LLC | 0.44% | 57,449 | 0.08% | $530,829 | |
| LPL Financial LLC | 0.42% | 54,614 | +26% | 0% | $504,635 |
| Arax Advisory Partners | 0.41% | 54,038 | +1164% | 0% | $499,314 |
| Baird Financial Group, Inc. | 0.32% | 41,928 | -1.4% | 0% | $387,415 |
| Sowell Financial Services LLC | 0.3% | 39,073 | 0% | 0.01% | $361,035 |
| WELLS FARGO & COMPANY/MN | 0.28% | 36,061 | -16% | 0% | $333,205 |
| Smith Asset Management Co., LLC | 0.24% | 30,718 | -3.5% | 0.22% | $283,834 |
| CLIFFORD SWAN INVESTMENT COUNSEL LLC | 0.23% | 29,500 | 0% | 0.01% | $272,580 |
| GUGGENHEIM CAPITAL LLC | 0.2% | 25,636 | +0.1% | 0% | $236,877 |
| OSAIC HOLDINGS, INC. | 0.19% | 24,398 | +166% | 0% | $225,438 |
| TrueMark Investments, LLC | 0.17% | 22,537 | +7.1% | 0.03% | $208,242 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 0.17% | 22,537 | +7.1% | 0.01% | $208,242 |
| Logan Stone Capital, LLC | 0.13% | 16,984 | +62% | 0.03% | $156,932 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 4,043,608 | $37,346,928 | -$3,123,993 | $9.24 | 50 |
| 2026 Q1 | 4,409,337 | $39,878,951 | +$5,890,994 | $9.04 | 52 |
| 2025 Q4 | 4,344,908 | $41,061,022 | +$2,855,989 | $9.45 | 45 |
| 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 |