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Equibles

HIO

Western Asset High Income Opportunity Fund Inc.

Company with tickers: HIO

CIK
910068
CUSIP
95766K109
Shares Outstanding
95,099,215
13F Activity (30d)
59 filings 46 filers

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.

Holders: 121
Total Value: $117,569,582
Total Shares: 32,388,332
Showing 1–100 of 121 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 121 13F filers · Δ vs Dec 31, 2025
Top Holder
35.2%
Jun 2023 → Mar 2026 · range 13.3% – 35.2%
+0.7 pts
Top 5
60.8%
Jun 2023 → Mar 2026 · range 48.2% – 64.1%
+1.9 pts
Top 10
73.5%
Jun 2023 → Mar 2026 · range 66.4% – 77.6%
+2.7 pts
HHI
1,475
Jun 2023 → Mar 2026 · range 674 – 1,502
Broadly held+53

Quarterly Activity

vs Dec 31, 2025
New
20
Increased
42
Decreased
28
Sold Out
15
Unchanged
31
Holder count: +5
Institutional value: +13.5%
Shares held: +16.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega MORGAN STANLEY +1,759,935 11,392,747
Mega LPL Financial LLC +367,001 752,004
Small ABSOLUTE INVESTMENT ADVISERS, LLC +141,927 469,158
Mega Invesco Ltd. +133,941 1,354,893
Small Rareview Capital LLC +119,146 691,641

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid Capital Investment Advisors, LLC −350,817 2,539,012
Mid WOLVERINE ASSET MANAGEMENT LLC −169,549 470,947
Mega JANE STREET GROUP, LLC −154,260 40,796
Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C. −116,036 14,827
Small Shaker Financial Services, LLC −100,789 512,974

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mid SIT INVESTMENT ASSOCIATES INC 2,812,278 $10,208,569
Small Quarry LP 305,111 $1,107,552
Large NOMURA HOLDINGS INC 37,500 $136,125
Mid Independent Advisor Alliance 36,873 $133,848
Mega CITADEL ADVISORS LLC 28,169 $102,253

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mid READYSTATE ASSET MANAGEMENT LP 477,054 $1,769,870
Large Marex Group plc 67,142 $249,096
Mid Segment Wealth Management, LLC 49,332 $183,021
Small Logan Stone Capital, LLC 42,419 $157,374
Large HRT FINANCIAL LP 30,093 $111,645
Filter: New 20 Increased 42 Reduced 28 Sold out 15 Unchanged 31
Showing 100 of 121
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega MORGAN STANLEY $41,355,670 35.18% 11,392,747
Mid SIT INVESTMENT ASSOCIATES INC $10,208,569 8.68% 2,812,278
Mid Capital Investment Advisors, LLC $9,216,613 7.84% 2,539,012
Mid Penserra Capital Management LLC $5,793,915 4.93% 1,596,120
Mega Invesco Ltd. $4,918,261 4.18% 1,354,893
Small FCA CORP /TX $4,380,462 3.73% 1,206,739
Mega WELLS FARGO & COMPANY/MN $2,900,910 2.47% 799,149
Mega LPL Financial LLC $2,729,774 2.32% 752,004
Small Rareview Capital LLC $2,510,656 2.14% 691,641
Mega RAYMOND JAMES FINANCIAL INC $2,413,836 2.05% 664,969
Mega UBS Group AG $2,184,794 1.86% 601,872
Large Thrivent Financial for Lutherans $1,992,622 1.69% 548,932
Small Shaker Financial Services, LLC $1,862,095 1.58% 512,974
Small Kanen Wealth Management LLC $1,780,348 1.51% 490,454
Large JONES FINANCIAL COMPANIES LLLP $1,720,119 1.46% 473,862
Mid WOLVERINE ASSET MANAGEMENT LLC $1,709,537 1.45% 470,947
Small ABSOLUTE INVESTMENT ADVISERS, LLC $1,703,043 1.45% 469,158
Mid Chicago Partners Investment Group LLC $1,336,950 1.14% 368,306
Mega BANK OF AMERICA CORP /DE/ Bank $1,149,276 0.98% 316,605
Small Quarry LP $1,107,552 0.94% 305,111
Small RFG Advisory, LLC $1,042,038 0.89% 287,063
Small Pathway Financial Advisers, LLC $1,014,341 0.86% 279,433
Small PIN OAK INVESTMENT ADVISORS INC $846,000 0.72% 233,058
Mega FIRST TRUST ADVISORS LP $836,290 0.71% 230,383
Small Fortis Group Advisors, LLC $764,372 0.65% 210,571
Mega ENVESTNET ASSET MANAGEMENT INC $616,148 0.52% 169,738
Large Calamos Advisors LLC $594,575 0.51% 163,795
Mega ROYAL BANK OF CANADA Bank $530,390 0.45% 146,113
Large Cetera Investment Advisers $398,142 0.34% 109,681
Large COMMONWEALTH EQUITY SERVICES, LLC $356,908 0.30% 98,322
Large Steward Partners Investment Advisory, LLC $340,533 0.29% 93,811
Large STIFEL FINANCIAL CORP $333,603 0.28% 91,902
Large OSAIC HOLDINGS, INC. $325,171 0.28% 89,579
Small MELFA WEALTH MANAGEMENT, INC. $286,588 0.24% 78,950
Large TRUIST FINANCIAL CORP $261,936 0.22% 72,159
Mid Stratos Wealth Partners, LTD. $215,680 0.18% 59,416
Small NWF Advisory Services Inc. $206,623 0.18% 56,921
Mid CHOREO, LLC $200,067 0.17% 55,115
Micro Everstar Asset Management, LLC $193,043 0.16% 53,180
Small WALLED LAKE PLANNING & WEALTH MANAGEMENT, LLC $185,075 0.16% 50,985
Mid Concurrent Investment Advisors, LLC $179,640 0.15% 49,488
Large Cambridge Investment Research Advisors, Inc. $168,446 0.14% 46,404
Mid BOOTHBAY FUND MANAGEMENT, LLC $149,599 0.13% 41,212
Mega JANE STREET GROUP, LLC $148,089 0.13% 40,796
Small Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors $147,904 0.13% 40,745
Large NOMURA HOLDINGS INC $136,125 0.12% 37,500
Mid Independent Advisor Alliance $133,848 0.11% 36,873
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $131,859 0.11% 36,325
Mid XTX Topco Ltd $128,022 0.11% 35,268
Mid Clearstead Advisors, LLC $124,781 0.11% 34,375
Small KELLEHER FINANCIAL ADVISORS $124,538 0.11% 34,308
Micro Wilson & Boucher Capital Management, LLC $119,699 0.10% 32,975
Micro ACCREDITED INVESTOR SERVICES, LLC $114,061 0.10% 31,422
Small DUDLEY CAPITAL MANAGEMENT, LLC $112,893 0.10% 31,100
Large MERCER GLOBAL ADVISORS INC /ADV $109,477 0.09% 30,159
Large NewEdge Advisors, LLC $104,671 0.09% 28,835
Micro Integrity Advisory Solutions, LLC $104,188 0.09% 28,702
Mega CITADEL ADVISORS LLC $102,253 0.09% 28,169
Large Mariner, LLC $101,048 0.09% 27,837
Small CHAPIN DAVIS, INC. $97,679 0.08% 26,909
Small Uncommon Cents Investing LLC $95,567 0.08% 26,327
Mid OPPENHEIMER & CO INC $94,441 0.08% 26,017
Mid Merit Financial Group, LLC $92,506 0.08% 25,484
Mid Virtu Financial LLC $91,711 0.08% 25,265
Small Corps Capital Advisors, LLC $90,750 0.08% 25,000
Mid PARK AVENUE SECURITIES LLC Broker-Dealer $89,857 0.08% 24,754
Large FIFTH THIRD BANCORP Bank $82,985 0.07% 22,861
Small Samalin Investment Counsel, LLC $80,713 0.07% 22,235
Large Creative Planning $80,393 0.07% 22,147
Small First Nebraska Trust Co Bank $80,077 0.07% 22,060
Large &PARTNERS $74,650 0.06% 20,565
Mid Aptus Capital Advisors, LLC $73,620 0.06% 20,281
Small Suncoast Equity Management $72,730 0.06% 20,036
Mid Advisory Services Network, LLC $70,785 0.06% 19,500
Small Cape Investment Advisory, Inc. $66,429 0.06% 18,300
Large Fiera Capital Corp $65,096 0.06% 17,933
Mid EVERGREEN CAPITAL MANAGEMENT LLC $60,381 0.05% 16,634
Mid Private Advisor Group, LLC $59,985 0.05% 16,525
Mid Savvy Advisors, Inc. $59,698 0.05% 16,446
Small FOURPATH CAPITAL MANAGEMENT, LLC $56,141 0.05% 15,466
Mid Integrated Wealth Concepts LLC $55,085 0.05% 15,175
Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C. $53,820 0.05% 14,827
Small Jackson Hole Capital Partners, LLC $51,546 0.04% 14,200
Small Pekin Hardy Strauss, Inc. $50,721 0.04% 13,973
Small Occidental Asset Management, LLC $50,043 0.04% 13,786
Small Pinnacle Wealth Planning Services, Inc. $48,660 0.04% 13,405
Small TWO SIGMA SECURITIES, LLC Broker-Dealer $48,496 0.04% 13,360
Mid One Capital Management, LLC $46,808 0.04% 12,895
Small STEEL GROVE CAPITAL ADVISORS, LLC $43,520 0.04% 11,989
Mid WEDBUSH SECURITIES INC Broker-Dealer $42,990 0.04% 11,843
Small RPg Family Wealth Advisory, LLC $42,351 0.04% 11,667
Mid Equitable Holdings, Inc. $41,487 0.04% 11,429
Small PCM Encore, LLC $41,334 0.04% 11,387
Small LAUREL OAK WEALTH MANAGEMENT, LLC $39,614 0.03% 10,913
Mega PNC FINANCIAL SERVICES GROUP, INC. $39,567 0.03% 10,900
Micro Nova Wealth Management, Inc. $37,933 0.03% 10,450
Small High Net Worth Advisory Group LLC $37,588 0.03% 10,355
Small Stonebrook Private Inc. $36,909 0.03% 10,168
Large US BANCORP \DE\ Bank $29,040 0.02% 8,000
Mid MAI Capital Management $23,475 0.02% 6,467

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