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Pimco Corporate & Income Opportunity Fund
$12.13 +0.01 (+0.08%) At close · Jul 7
Market Cap
$2.57B
Shares
211,981,917

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 222
Total Value: $405,629,223
Total Shares: 33,637,008
Showing 1–100 of 222 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 222 13F filers
Top Holder
8.2%
Jun 2023 → Mar 2026 · range 8.2% – 11.6%
of institutional value
Top 5
35.1%
Jun 2023 → Mar 2026 · range 33.9% – 41.3%
of institutional value
Top 10
52.1%
Jun 2023 → Mar 2026 · range 50.9% – 58.5%
of institutional value
HHI
362
Jun 2023 → Mar 2026 · range 354 – 469
Broadly held
Showing 100 of 222
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega LPL Financial LLC $33,067,157 8.15% 2,741,887
Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $32,774,750 8.08% 2,717,641
Mega MORGAN STANLEY $31,114,027 7.67% 2,579,936
Mega WELLS FARGO & COMPANY/MN $25,857,893 6.37% 2,144,104
Small XML Financial, LLC $19,188,026 4.73% 1,591,047
Micro Merrithew & Thorsten Inc $18,368,815 4.53% 1,523,119
Mega Invesco Ltd. $16,605,824 4.09% 1,376,934
Large Cetera Investment Advisers $13,916,600 3.43% 1,153,947
Mega ENVESTNET ASSET MANAGEMENT INC $10,093,182 2.49% 836,914
Large OSAIC HOLDINGS, INC. $9,855,950 2.43% 817,243
Small Logan Stone Capital, LLC $9,465,580 2.33% 784,874
Mid Private Advisor Group, LLC $7,917,426 1.95% 656,503
Mid PFG Investments, LLC $7,565,539 1.87% 627,325
Large GUGGENHEIM CAPITAL LLC $7,417,189 1.83% 615,024
Mega ROYAL BANK OF CANADA Bank $7,239,737 1.78% 600,310
Mid Equitable Holdings, Inc. $6,614,560 1.63% 548,471
Small Accel Wealth Management $6,083,015 1.50% 504,396
Large Cambridge Investment Research Advisors, Inc. $6,031,977 1.49% 500,164
Large COMMONWEALTH EQUITY SERVICES, LLC $5,534,623 1.36% 458,924
Large Kestra Advisory Services, LLC $4,937,038 1.22% 409,373
Mid Dynamic Advisor Solutions LLC $4,599,670 1.13% 382,350
Mid Independent Advisor Alliance $4,484,003 1.11% 371,808
Small Ascentis Independent Advisors $4,442,469 1.10% 368,364
Small Evergreen Wealth Management, LLC $4,409,630 1.09% 365,641
Small Noble Wealth Management PBC $3,996,588 0.99% 333,049
Mega BANK OF AMERICA CORP /DE/ Bank $3,762,659 0.93% 311,995
Large TRUIST FINANCIAL CORP $3,475,245 0.86% 288,163
Mid RIVERNORTH CAPITAL MANAGEMENT, LLC $3,453,453 0.85% 286,356
Small Thomas J. Herzfeld Advisors, Inc. $3,014,710 0.74% 249,976
Mega RAYMOND JAMES FINANCIAL INC $2,786,040 0.69% 231,015
Large Steward Partners Investment Advisory, LLC $2,687,474 0.66% 222,842
Mega JANE STREET GROUP, LLC $2,525,881 0.62% 209,443
Small Strategic Wealth Partners, Ltd. $2,388,615 0.59% 198,061
Mid PRINCIPAL SECURITIES, INC. Broker-Dealer $2,277,362 0.56% 188,836
Mega UBS Group AG $2,245,703 0.55% 186,211
Micro Beta Wealth Group, Inc. $2,131,255 0.53% 176,721
Large STIFEL FINANCIAL CORP $2,113,876 0.52% 175,280
Small Smith Asset Management Co., LLC $1,992,336 0.49% 165,202
Micro Elm3 Financial Group, LLC $1,929,961 0.48% 160,030
Micro AG Asset Advisory, LLC $1,837,919 0.45% 152,398
Mid XTX Topco Ltd $1,794,383 0.44% 148,788
Micro Plotkin Financial Advisors, LLC $1,585,130 0.39% 131,437
Large Mariner, LLC $1,573,263 0.39% 130,453
Small Zullo Investment Group, Inc. $1,555,342 0.38% 128,967
Small Covenant Asset Management, LLC $1,520,536 0.37% 126,081
Small Vision Retirement, LLC Pension $1,394,992 0.34% 115,671
Small Ausdal Financial Partners, Inc. $1,393,750 0.34% 115,568
Micro C2C Wealth Management, LLC $1,314,359 0.32% 108,985
Large CAPTRUST FINANCIAL ADVISORS $1,286,946 0.32% 106,712
Small Financial Engines Advisors L.L.C. $1,278,757 0.32% 106,033
Mid UMB Bank, n.a. $1,193,940 0.29% 99,000
Mid NBT BANK N A /NY Bank $1,186,704 0.29% 98,400
Mid INDEPENDENT FINANCIAL GROUP, LLC $1,124,522 0.28% 93,244
Micro Signature Equity Partners, LLC $1,111,582 0.27% 92,171
Mid CARY STREET PARTNERS FINANCIAL LLC $1,093,914 0.27% 90,706
Mid OPPENHEIMER & CO INC $1,046,144 0.26% 86,745
Large NewEdge Advisors, LLC $1,033,180 0.25% 85,670
Small Samalin Investment Counsel, LLC $1,011,279 0.25% 83,854
Small ABSOLUTE INVESTMENT ADVISERS, LLC $996,626 0.25% 82,639
Mid Wealthspire Advisors, LLC $924,362 0.23% 76,647
Mid Shay Capital LLC $898,108 0.22% 74,470
Large Janney Montgomery Scott LLC $858,153 0.21% 71,157
Mid READYSTATE ASSET MANAGEMENT LP $849,385 0.21% 70,430
Large HighTower Advisors, LLC $833,394 0.21% 69,104
Small Cornerstone Wealth Management, LLC $821,430 0.20% 68,112
Small Triumph Capital Management $809,816 0.20% 67,149
Mid Sanctuary Advisors, LLC $794,778 0.20% 65,902
Small ORLEANS CAPITAL MANAGEMENT CORP/LA $781,849 0.19% 64,830
Micro Main Street Group, LTD $779,738 0.19% 64,655
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $749,384 0.18% 62,138
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $738,976 0.18% 61,275
Mid EXENCIAL WEALTH ADVISORS, LLC $735,865 0.18% 61,017
Large MML INVESTORS SERVICES, LLC $718,197 0.18% 59,552
Mid OneDigital Investment Advisors LLC $709,670 0.17% 58,845
Micro FELL CAPITAL MANAGEMENT /ADV $674,757 0.17% 55,950
Small Sovran Advisors, LLC $659,669 0.16% 54,699
Mid HARBOUR INVESTMENTS, INC. $657,077 0.16% 54,484
Micro Advisory Advocates, LLC $650,516 0.16% 53,940
Small MINDSET WEALTH MANAGEMENT, LLC $624,527 0.15% 51,785
Small GHE, LLC $620,487 0.15% 51,450
Mid HOLLENCREST CAPITAL MANAGEMENT $560,946 0.14% 46,513
Small WEALTH EFFECTS LLC $559,342 0.14% 46,380
Mid Arkadios Wealth Advisors $554,398 0.14% 45,970
Mid DIVERSIFY WEALTH MANAGEMENT, LLC $543,061 0.13% 45,030
Micro Accelerate Investment Advisors LLC $536,091 0.13% 44,452
Small NWAM LLC $528,420 0.13% 43,816
Mid Sigma Planning Corp $516,360 0.13% 42,816
Large Rockefeller Capital Management L.P. $498,294 0.12% 41,318
Small Everest Financial Group LLC $480,253 0.12% 39,822
Mid CHOREO, LLC $476,997 0.12% 39,552
Small NWF Advisory Services Inc. $475,103 0.12% 39,395
Mid Virtu Financial LLC $467,264 0.12% 38,745
Small PRIVATE TRUST CO NA Bank $450,983 0.11% 37,395
Micro RMG Wealth Management LLC $437,874 0.11% 36,308
Small Quarry LP $415,177 0.10% 34,426
Small DELTA FINANCIAL ADVISORS LLC $414,562 0.10% 34,375
Mid IHT Wealth Management, LLC $405,831 0.10% 33,651
Small Capital Analysts, LLC $397,413 0.10% 32,953
Mid World Investment Advisors $383,411 0.09% 31,792
Mid Stratos Wealth Partners, LTD. $375,548 0.09% 31,140
Key facts CIK 1190935 CUSIP 72201B101 13F (30d) 30 filings 11 filers

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