PFO · Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC · Shareholders & Ownership
Every disclosed holder of PFO in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns PFO
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 4,046,519 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 0 | — |
| Registered funds (N-PORT, not summed) | 13,165 | — |
% Out is unavailable: no shares outstanding count is on record.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of PFO
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
SIT INVESTMENT ASSOCIATES INC
13F
CIK 769317 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,720,165 | ||
| 2 |
CIBC Bancorp USA Inc.
13F
CIK 1711924 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
588,511 | ||
| 3 |
1607 Capital Partners, LLC
13F
CIK 1436866 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
200,178 | ||
| 4 |
Private Advisor Group, LLC
13F
CIK 1567755 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
175,625 | ||
| 5 |
Fiera Capital Corp
13F
CIK 1505817 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
128,673 | ||
| 6 |
Pathstone Holdings, LLC
13F
CIK 2011612 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
101,525 | ||
| 7 |
Noble Wealth Management PBC
13F
CIK 2055065 · Unknown · Sep 30, 2026
|
97,961 | ||
| 8 |
Closed-End Fund Advisors, Inc.
13F
CIK 2103520 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
94,929 | ||
| 9 |
D.A. DAVIDSON & CO.
13F
CIK 1080107 · Unknown · Sep 30, 2026
|
89,490 | ||
| 10 |
MUSTICO FINANCIAL GROUP, INC.
13F
CIK 2034361 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
83,652 | ||
| 11 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
77,677 | ||
| 12 |
Cambridge Investment Research Advisors, Inc.
13F
CIK 1419186 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
63,965 | ||
| 13 |
Atlas Wealth LLC
13F
CIK 1964106 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
57,449 | ||
| 14 |
LPL Financial LLC
13F
CIK 1403438 · Broker-dealer · Jun 30, 2026
carried, not yet filed for the newest quarter
|
54,614 | ||
| 15 |
Arax Advisory Partners
13F
CIK 1586767 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
54,038 | ||
| 16 |
Baird Financial Group, Inc.
13F
CIK 1648711 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
41,928 | ||
| 17 |
Sowell Financial Services LLC
13F
CIK 1633697 · Registered investment adviser · Sep 30, 2026
|
39,073 | ||
| 18 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
36,061 | ||
| 19 |
Smith Asset Management Co., LLC
13F
CIK 2068217 · Registered investment adviser · Sep 30, 2026
|
30,718 | ||
| 20 |
CLIFFORD SWAN INVESTMENT COUNSEL LLC
13F
CIK 1034642 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
29,500 | ||
| 21 |
GUGGENHEIM CAPITAL LLC
13F
CIK 1283072 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
25,636 | ||
| 21.1 |
Multi-Hedge Strategies Fund
Fund
S000003747 · Registered fund · Jun 30, 2026
Rydex Variable Trust, not summed
|
406 | ||
| 21.2 |
Guggenheim Multi-Hedge Strategies Fund
Fund
S000003763 · Registered fund · Jun 30, 2026
Rydex Series Funds, not summed
|
144 | ||
| 22 |
OSAIC HOLDINGS, INC.
13F
CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
24,398 | ||
| 23 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
22,537 | ||
| 24 |
TrueMark Investments, LLC
13F
CIK 1974457 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
22,537 | ||
| 24.1 |
RiverNorth Active Income ETF
Fund
S000093615 · Registered fund · Jul 31, 2026
Elevation Series Trust, not summed
|
12,615 | ||
| 25 |
Logan Stone Capital, LLC
13F
CIK 1535521 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
16,984 | ||
| 26 |
Traub Capital Management LLC
13F
CIK 2079207 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
16,759 | ||
| 27 |
Clear Creek Financial Management, LLC
13F
CIK 1784235 · Unknown · Sep 30, 2026
|
16,622 | ||
| 28 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,564 | ||
| 29 |
Cetera Investment Advisers
13F
CIK 1666741 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13,733 | ||
| 30 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13,484 | ||
| 31 |
JAG CAPITAL MANAGEMENT, LLC
13F
CIK 1080374 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,700 | ||
| 32 |
MOSAIC FAMILY WEALTH PARTNERS, LLC
13F
CIK 1965241 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,824 | ||
| 33 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,062 | ||
| 34 |
AlphaCore Capital LLC
13F
CIK 1713662 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,600 | ||
| 35 |
|
8,578 | ||
| 36 |
Basepoint Wealth LLC
13F
CIK 2088236 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,387 | ||
| 37 |
ROYAL BANK OF CANADA
13F
CIK 1000275 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,498 | ||
| 38 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,416 | ||
| 39 |
Thomas J. Herzfeld Advisors, Inc.
13F
CIK 1509510 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,679 | ||
| 40 |
Paladin Partners, LLC
13F
CIK 2141570 · Registered investment adviser · Sep 30, 2026
|
3,271 | ||
| 41 |
MATHER GROUP, LLC.
13F
CIK 1527641 · Registered investment adviser · Sep 30, 2026
|
3,238 | ||
| 42 |
Rockefeller Capital Management L.P.
13F
CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,000 | ||
| 43 |
West Branch Capital LLC
13F
CIK 1738723 · Registered investment adviser · Sep 30, 2026
|
2,438 | ||
| 44 |
ACTION POINT FINANCIAL PLANNING, LLC
13F
CIK 2116119 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,700 | ||
| 45 |
Clear Street Group Inc.
13F
CIK 1881567 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,535 | ||
| 46 |
Federation des caisses Desjardins du Quebec
13F
CIK 2022297 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,300 | ||
| 47 |
BLUE BELL PRIVATE WEALTH MANAGEMENT, LLC
13F
CIK 1352860 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
597 | ||
| 48 |
HARBOUR INVESTMENTS, INC.
13F
CIK 810121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
400 | ||
| 49 |
HIGHLINE WEALTH PARTNERS LLC
13F
CIK 2042654 · Registered investment adviser · Sep 30, 2026
|
310 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.