PIMCO Corporate & Income Opportunity Fund
US ˙ NYSE ˙ US72201B1017

SecurityPTY / PIMCO Corporate & Income Opportunity Fund
InstitutionInvesco Ltd.
Latest Disclosed Ownership1,376,934 shares
Latest Disclosed Value $ 16,605,824
Invesco Ltd. reports 3.94% increase in ownership of PTY / PIMCO Corporate & Income Opportunity Fund

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 1,376,934 shares of PIMCO Corporate & Income Opportunity Fund (US:PTY) valued at $16,605,824 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 1,324,697 shares of PIMCO Corporate & Income Opportunity Fund. This represents a change in shares of 3.94% during the quarter. The current value of the position is $16,302,899 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 1,376,934 52,237 3.94 16,606 -2.83 0.0003
2026-02-19 2025-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 1,324,697 83,965 6.77 17,089 -4.62 0.0026
2025-11-13 2025-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 1,240,732 61,726 5.24 17,916 9.25 0.0028
2025-08-13 2025-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 1,179,006 1,179,006 16,400 0.0028
2022-08-15 2022-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 0 -746,428 -100.00 0 -100.00
2022-05-16 2022-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 746,428 746,428 11,458 0.0029
2019-08-14 2019-06-30 13F/A-1 PIMCO CORPORATE & INCOME OPP COM 72201B101 0 -462,503 -100.00 0 -100.00
2019-05-15 2019-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 462,503 -10,857 -2.29 8,089 11.40 0.0027
2019-02-14 2018-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 473,360 473,360 7,261 0.0028
2018-11-14 2018-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 0 -424,402 -100.00 0 -100.00
2018-08-14 2018-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 424,402 -11,935 -2.74 7,423 0.54 0.0025
2018-05-15 2018-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 436,337 32,675 8.09 7,383 11.12 0.0028
2018-02-14 2017-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 403,662 23,162 6.09 6,644 4.06 0.0024
2017-11-14 2017-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 380,500 -16,374 -4.13 6,385 -2.33 0.0024
2017-08-14 2017-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 396,874 -20,644 -4.94 6,537 -0.27 0.0020
2017-05-15 2017-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 417,518 -18,754 -4.30 6,555 5.00 0.0022
2017-02-14 2016-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 436,272 -27,451 -5.92 6,243 -7.85 0.0021
2016-11-14 2016-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 463,723 -16,801 -3.50 6,775 0.06 0.0023
2016-08-15 2016-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 480,524 34,291 7.68 6,771 11.33 0.0025
2016-05-16 2016-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 446,233 -29,770 -6.25 6,082 -4.22 0.0025
2016-02-16 2015-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 476,003 10,448 2.24 6,350 2.55 0.0025
2015-11-16 2015-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 465,555 -7,517 -1.59 6,192 -9.61 0.0026
2015-08-14 2015-06-30 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 473,072 26,982 6.05 6,850 -2.63 0.0027
2015-05-15 2015-03-31 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 446,090 -452 -0.10 7,035 -0.92 0.0027
2015-02-13 2014-12-31 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 446,542 14,727 3.41 7,100 -3.61 0.0027
2014-11-14 2014-09-30 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 431,815 40,389 10.32 7,366 -0.16 0.0029
2014-08-14 2014-06-30 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 391,426 22,343 6.05 7,378 10.68 0.0029
2014-05-15 2014-03-31 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 369,083 -23,461 -5.98 6,666 -1.61 0.0027
2014-02-13 2013-12-31 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 392,544 -15,294 -3.75 6,775 -7.96 0.0027
2013-11-13 2013-09-30 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 407,838 78,203 23.72 7,361 14.23 0.0032
2013-08-14 2013-06-30 13F PIMCO CORP & INCOME OPPORTUNIT COMMON 72201B101 329,635 329,635 6,444 0.0030
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.