西部資產高收入機會基金公司
US ˙ NYSE ˙ US95766K1097

SecurityHIO / Western Asset High Income Opportunity Fund Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership601,872 shares
Latest Disclosed Value $ 2,184,795
UBS Group AG reports 12.60% increase in ownership of HIO / Western Asset High Income Opportunity Fund Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 601,872 shares of Western Asset High Income Opportunity Fund Inc. (US:HIO) valued at $2,184,795 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 534,544 shares of Western Asset High Income Opportunity Fund Inc.. This represents a change in shares of 12.60% during the quarter. The current value of the position is $2,148,683 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.

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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)
2026-05-05 2026-03-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 601,872 67,328 12.60 2,185 10.14 0.0001
2026-01-29 2025-12-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 534,544 -218,646 -29.03 1,983 -31.43 0.0001
2025-11-13 2025-09-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 753,190 281,615 59.72 2,892 54.16 0.0005
2025-08-14 2025-06-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 471,575 -63,004 -11.79 1,877 -11.80 0.0003
2025-05-13 2025-03-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 534,579 52,386 10.86 2,128 12.24 0.0004
2025-02-14 2024-12-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 482,193 -47,142 -8.91 1,895 -11.57 0.0004
2024-11-14 2024-09-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 529,335 39,978 8.17 2,144 14.97 0.0005
2024-08-14 2024-06-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 489,357 -42,947 -8.07 1,864 -10.17 0.0005
2024-05-13 2024-03-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 532,304 -19,113 -3.47 2,076 -2.49 0.0005
2024-02-09 2023-12-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 551,417 -82,934 -13.07 2,128 -7.84 0.0006
2023-11-09 2023-09-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 634,351 -157,495 -19.89 2,309 -22.85 0.0008
2023-08-11 2023-06-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 791,846 -78,485 -9.02 2,993 -9.71 0.0010
2023-05-12 2023-03-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 870,331 -241,754 -21.74 3,316 -24.52 0.0012
2023-02-08 2022-12-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,112,085 -146,573 -11.65 4,393 -5.18 0.0016
2022-11-10 2022-09-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,258,658 -70,681 -5.32 4,632 -12.02 0.0020
2022-08-10 2022-06-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,329,339 -90,887 -6.40 5,265 -17.06 0.0022
2022-05-16 2022-03-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,420,226 -100,854 -6.63 6,348 -19.74 0.0021
2022-02-14 2021-12-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,521,080 -21,706 -1.41 7,909 -1.22 0.0023
2021-11-15 2021-09-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,542,786 -81,924 -5.04 8,007 -6.67 0.0025
2021-08-13 2021-06-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,624,710 -101,939 -5.90 8,579 -2.19 0.0028
2021-05-12 2021-03-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,726,649 7,610 0.44 8,771 3.07 0.0029
2021-02-11 2020-12-31 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 1,719,039 -400,231 -18.89 8,510 -18.05 0.0029
2020-11-12 2020-09-30 13F WESTERN ASSET HIGH INCOME OP COM 95766K109 2,119,270 76,395 3.74 10,385 10.03 0.0039
2020-07-31 2020-06-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 2,042,875 60,596 3.06 9,438 13.10 0.0040
2020-05-01 2020-03-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 1,982,279 -2,537,392 -56.14 8,345 -63.58 0.0039
2020-02-14 2019-12-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,519,671 329,074 7.85 22,915 8.28 0.0080
2019-11-14 2019-09-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,190,597 -112,053 -2.60 21,162 -4.12 0.0081
2019-08-14 2019-06-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,302,650 -121,468 -2.75 22,072 3.29 0.0085
2019-05-14 2019-03-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,424,118 164,202 3.85 21,368 14.52 0.0088
2019-02-14 2018-12-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,259,916 -709,570 -14.28 18,659 -21.12 0.0085
2018-11-14 2018-09-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,969,486 5,595 0.11 23,655 -1.13 0.0094
2018-08-14 2018-06-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,963,891 -107,541 -2.12 23,926 -1.91 0.0104
2018-05-15 2018-03-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 5,071,432 176,265 3.60 24,393 -1.71 0.0105
2018-02-14 2017-12-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,895,167 -535,189 -9.86 24,818 -10.91 0.0102
2017-11-14 2017-09-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 5,430,356 -176,863 -3.15 27,858 -2.01 0.0129
2017-11-14 2017-06-30 13F/A-1 WESTERN ASSET HIGH INCM OPP COM 95766K109 5,607,219 -442,930 -7.32 28,429 -6.77 0.0147
2017-08-14 2017-06-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 5,607,219 28,429
2017-11-14 2017-03-31 13F/A-1 WESTERN ASSET HIGH INCM OPP COM 95766K109 6,050,149 1,628,655 36.83 30,493 38.21 0.0166
2017-05-12 2017-03-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 6,050,149 30,493
2017-02-14 2016-12-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,421,494 151,799 3.56 22,063 2.32 0.0122
2016-11-14 2016-09-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 4,269,695 2,395,617 127.83 21,562 134.80 0.0129
2016-08-12 2016-06-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 1,874,078 374,591 24.98 9,183 30.59 0.0058
2016-05-12 2016-03-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 1,499,487 653,882 77.33 7,032 77.31 0.0047
2016-02-16 2015-12-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 845,605 208,775 32.78 3,966 32.82 0.0026
2015-11-13 2015-09-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 636,830 489,000 330.79 2,986 291.86 0.0021
2015-08-14 2015-06-30 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 147,830 -312,750 -67.90 762 -68.91 0.0005
2015-05-14 2015-03-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 460,580 16,696 3.76 2,451 2.81 0.0017
2015-02-17 2014-12-31 13F WESTERN ASSET HIGH INCM OPP COM 95766K109 443,884 443,884 2,384 0.0017
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.