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PIMCO Corporate & Income Opportunity Fund

PTY
Exchange
NYSE
SEC CIK
0001190935

No open-market purchases or sales by PIMCO Corporate & Income Opportunity Fund insiders were filed in the last 90 days; 222 institutions reported holding it in 13F filings for Q2 2026, worth $427.5M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in PIMCO Corporate & Income Opportunity Fund as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
222
+3 vs. Q1 2026
Shares held
35.5M
+2.02M (+6.0%) vs. Q1 2026
Total value
$427.5M
+$22.7M (+5.6%) vs. Q1 2026
New holders
30
88 more added
Sold out
27
65 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting PTY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 222 institutions
Q1 2021: 126 institutionsQ2 2021: 132 institutionsQ3 2021: 138 institutionsQ4 2021: 148 institutionsQ1 2022: 142 institutionsQ2 2022: 148 institutionsQ3 2022: 142 institutionsQ4 2022: 155 institutionsQ1 2023: 145 institutionsQ2 2023: 151 institutionsQ3 2023: 159 institutionsQ4 2023: 169 institutionsQ1 2024: 157 institutionsQ2 2024: 166 institutionsQ3 2024: 181 institutionsQ4 2024: 194 institutionsQ1 2025: 192 institutionsQ2 2025: 204 institutionsQ3 2025: 203 institutionsQ4 2025: 217 institutionsQ1 2026: 222 institutionsQ2 2026: 222 institutions
Value heldQ2 2026: $427.5M
Q1 2021: $161.3MQ2 2021: $174.3MQ3 2021: $187.5MQ4 2021: $164.7MQ1 2022: $165.6MQ2 2022: $133.3MQ3 2022: $122.3MQ4 2022: $150.2MQ1 2023: $189.4MQ2 2023: $229.5MQ3 2023: $219.0MQ4 2023: $239.8MQ1 2024: $310.9MQ2 2024: $455.3MQ3 2024: $293.1MQ4 2024: $317.9MQ1 2025: $337.2MQ2 2025: $375.7MQ3 2025: $403.8MQ4 2025: $415.6MQ1 2026: $405.7MQ2 2026: $427.5M
Institutions holding PTY and their total value by quarter
QuarterHoldersValue
Q2 2026222$427.5M
Q1 2026222$405.7M
Q4 2025217$415.6M
Q3 2025203$403.8M
Q2 2025204$375.7M
Q1 2025192$337.2M
Q4 2024194$317.9M
Q3 2024181$293.1M
Q2 2024166$455.3M
Q1 2024157$310.9M
Q4 2023169$239.8M
Q3 2023159$219.0M
Q2 2023151$229.5M
Q1 2023145$189.4M
Q4 2022155$150.2M
Q3 2022142$122.3M
Q2 2022148$133.3M
Q1 2022142$165.6M
Q4 2021148$164.7M
Q3 2021138$187.5M
Q2 2021132$174.3M
Q1 2021126$161.3M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding PIMCO Corporate & Income Opportunity Fund; share changes are against Q1 2026.

Institutions holding PTY in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Massmutual Trust Co FSB2$240.00%00.0%Unchanged
Kingdom Financial Group LLC.4$480.00%−445−99.1%Reduced
Assetmark, Inc98$1.18K0.00%−500−83.6%Reduced
First Horizon Corp100$1.20K0.00%+100New
Strategic Investment Solutions, Inc.133$1.60K0.00%+33+33.0%Added
Hoey Investments, Inc151$1.82K0.00%00.0%Unchanged
Bryn Mawr Trust Co200$2.41K0.00%00.0%Unchanged
Kerr Financial Planning Corp203$2.43K0.00%−6−2.9%Reduced
JFS Wealth Advisors, LLC226$2.75K0.00%+226New
Ancora Advisors, LLC300$3.61K0.00%00.0%Unchanged
UMA Financial Services, Inc.300$3.61K0.00%00.0%Unchanged
Highline Wealth Partners LLC300$3.61K0.00%00.0%Unchanged
GHP Investment Advisors, Inc.400$4.81K0.00%−2,250−84.9%Reduced
Larson Financial Group LLC407$4.90K0.00%+407New
Atlantic Union Bankshares Corp425$5.11K0.00%00.0%Unchanged
McGuire Capital Advisors Inc436$5.25K0.00%00.0%Unchanged
Boyd Watterson Asset Management LLC500$6.01K0.00%00.0%Unchanged
Smartleaf Asset Management LLC602$7.22K0.00%00.0%Unchanged
Coston, McIsaac & Partners695$8.00K0.00%+20+3.0%Added
Moisand Fitzgerald Tamayo, LLC745$8.96K0.00%00.0%Unchanged
CX Institutional725$9.00K0.00%−790−52.1%Reduced
Align Financial, LLC750$9.02K0.00%−1,000−57.1%Reduced
Crewe Advisors LLC850$10.2K0.00%00.0%Unchanged
Key Capital Management, INC1,008$12.1K0.01%+1,008New
Salem Investment Counselors Inc1,000$12.1K0.00%+975+3,900.0%Added
MCF Advisors LLC1,069$12.9K0.00%+1,069New
IFG Advisory, LLC1,082$13.0K0.00%+1,082New
Axiom Investment Management LLC1,226$14.7K0.01%00.0%Unchanged
Pin Oak Investment Advisors Inc1,306$16.0K0.01%+100+8.3%Added
Princeton Global Asset Management LLC1,375$16.5K0.00%+39+2.9%Added
Pinnacle Wealth Planning Services, Inc.1,500$18.0K0.00%00.0%Unchanged
Bogart Wealth, LLC1,600$19.2K0.00%00.0%Unchanged
Eastern Bank1,800$21.7K0.00%00.0%Unchanged
Heritage Wealth Advisors1,920$23.1K0.00%00.0%Unchanged
Webster Bank, N. A.2,200$26.5K0.00%00.0%Unchanged
Versant Capital Management, Inc2,500$30.1K0.00%00.0%Unchanged
Rothschild Investment LLC2,694$32.4K0.00%00.0%Unchanged
Continuum Advisory, LLC3,072$37.0K0.00%+3,072New
FNY Investment Advisers, LLC3,200$38.0K0.01%00.0%Unchanged
Bank of New Hampshire3,425$41.2K0.01%00.0%Unchanged
EverSource Wealth Advisors, LLC3,450$41.5K0.00%−5,500−61.5%Reduced
Cape Investment Advisory, Inc.3,783$45.5K0.01%+3,783New
Bartlett & Co. Wealth Management LLC3,961$48.1K0.00%+519+15.1%Added
Spire Wealth Management4,483$53.9K0.00%+10.0%Added
Marshall Investment Management, LLC4,881$58.7K0.02%+148+3.1%Added
Essential Investment Partners LLC5,500$66.2K0.05%+1,650+42.9%Added
Parallel Advisors, LLC5,602$67.4K0.00%+1,150+25.8%Added
Gill Capital Partners, LLC5,662$68.1K0.02%00.0%Unchanged
Ameriflex Group, Inc.5,800$69.8K0.03%−2,300−28.4%Reduced
Harbor Investment Advisory, LLC6,109$73.5K0.01%00.0%Unchanged
Ameritas Advisory Services, LLC6,206$74.7K0.00%+6,206New
Private Trust Co NA7,242$87.1K0.01%−30,153−80.6%Reduced
The PNC Financial Services Group, Inc.7,586$91.3K0.00%−300−3.8%Reduced
Global Retirement Partners, LLC8,827$106.2K0.00%+8,827New
NBC Securities, Inc.9,148$110.0K0.01%−1,680−15.5%Reduced
CoreCap Advisors, LLC9,900$119.1K0.00%+9,000+1,000.0%Added
Marex Group plc10,300$123.9K0.00%+10,300New
International Assets Investment Management, LLC10,391$125.7K0.01%+78+0.8%Added
BSW Wealth Partners10,597$127.5K0.01%+60+0.6%Added
Significant Wealth Partners LLC11,090$133.4K0.14%+194+1.8%Added
Cresset Asset Management, LLC11,301$137.3K0.00%+11,301New
Stonebridge Financial Group, LLC11,500$139.0K0.02%+11,500New
McAlister, Sweet & Associates, Inc.11,812$142.1K0.08%+11,812New
United Capital Financial Advisers, LLC11,847$142.5K0.00%+1,847+18.5%Added
Stephens Inc11,933$143.6K0.00%+413+3.6%Added
Allworth Financial LP12,026$144.7K0.00%−3,100−20.5%Reduced
Compass Financial Management LLC12,075$145.3K0.02%+12,075New
TPG Advisors LLC12,155$146.2K0.08%−3,465−22.2%Reduced
AE Wealth Management LLC12,997$156.4K0.00%−17,607−57.5%Reduced
BlackRock, Inc.13,160$158.3K0.00%00.0%Unchanged
Integrated Wealth Concepts LLC13,329$160.3K0.00%+13,329New
Wedbush Securities Inc13,582$163.0K0.00%−1,430−9.5%Reduced
Two Sigma Securities, LLC13,848$166.6K0.01%+2,506+22.1%Added
Kingsview Wealth Management, LLC14,029$168.8K0.00%−9,037−39.2%Reduced
Independent Advisor Alliance14,129$170.0K0.00%−357,679−96.2%Reduced
CI Private Wealth, LLC14,148$170.2K0.00%+14,148New
Scotia Capital Inc.14,331$172.4K0.00%+1,185+9.0%Added
Instrumental Wealth, LLC14,578$175.4K0.09%+1,253+9.4%Added
Madison Wealth Partners, Inc14,622$175.9K0.02%−5,000−25.5%Reduced
Beacon Financial Advisory LLC14,726$177.2K0.03%+305+2.1%Added
Rathbone Brothers plc15,000$180.4K0.00%−15,000−50.0%Reduced
Disciplined Investments, LLC15,000$180.4K0.06%00.0%Unchanged
Wharton Business Group, LLC15,076$181.4K0.01%+433+3.0%Added
McAdam, LLC15,316$184.3K0.01%00.0%Unchanged
Boothbay Fund Management, LLC15,690$188.8K0.00%+996+6.8%Added
Farther Finance Advisors, LLC16,402$197.3K0.00%−3,174−16.2%Reduced
Fulton Breakefield Broenniman LLC16,745$201.4K0.01%00.0%Unchanged
Verus Capital Partners, LLC16,967$204.1K0.01%−2,268−11.8%Reduced
HighPoint Advisor Group LLC17,525$210.8K0.01%+565+3.3%Added
Patten & Patten Inc17,986$216.4K0.01%+517+3.0%Added
Wealth Alliance Advisory Group, LLC18,205$219.0K0.03%+358+2.0%Added
D.A. Davidson & Co.18,221$219.2K0.00%+387+2.2%Added
Advisors Asset Management, Inc.18,223$219.2K0.00%+17,723+3,544.6%Added
Insigneo Advisory Services, LLC18,708$225.1K0.01%+464+2.5%Added
Great Valley Advisor Group, Inc.18,895$227.3K0.00%+493+2.7%Added
Creative Planning19,031$228.9K0.00%−2,406−11.2%Reduced
VestGen Advisors, LLC19,400$233.4K0.01%00.0%Unchanged
Nomura Holdings Inc20,000$240.6K0.00%+5,200+35.1%Added
Patron Partners Advisors, LLC21,480$258.4K0.10%+99+0.5%Added
Sym Financial Corp21,770$261.9K0.02%+1,636+8.1%Added