Who owns Western Asset High Income Opportunity Fund Inc?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of HIO from SEC Form 13F filings across 113 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 113 institutions disclosed 33.2M shares of Western Asset High Income Opportunity Fund Inc worth $121.0M — about 34.9% of shares outstanding; the largest disclosed holder is MORGAN STANLEY. Source: SEC Form 13F filings, parsed by EvidInvest.
113
13F holders
$121.0M
value, 2026 filers
34.9%
of shares outstanding (33.2M sh)
11
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of HIO's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | MORGAN STANLEY | 11.8M | $42.9M | 0.0% | 12.4% | +3.4% |
| 2 | SIT INVESTMENT ASSOCIATES INC | 2.8M | $10.3M | 0.2% | 3% | +0.3% |
| 3 | Capital Investment Advisors, LLC | 2.3M | $8.5M | 0.1% | 2.4% | -8.2% |
| 4 | Penserra Capital Management LLC | 1.7M | $6.0M | 0.0% | 1.7% | +4.0% |
| 5 | Invesco Ltd. | 1.3M | $4.7M | 0.0% | 1.3% | -5.3% |
| 6 | FCA CORP /TX | 1.3M | $4.6M | 1.1% | 1.3% | +5.7% |
| 7 | WELLS FARGO & COMPANY/MN | 1.0M | $3.7M | 0.0% | 1.1% | +26.4% |
| 8 | LPL Financial LLC | 969,899 | $3.5M | 0.0% | 1% | +29.0% |
| 9 | Rareview Capital LLC | 903,653 | $3.6M | 2.0% | 1% | +30.7% |
| 10 | Shaker Financial Services, LLC | 642,498 | $2.3M | 0.7% | 0.7% | +25.2% |
| 11 | RAYMOND JAMES FINANCIAL INC | 637,104 | $2.3M | 0.0% | 0.7% | -4.2% |
| 12 | UBS Group AG | 561,032 | $2.0M | 0.0% | 0.6% | -6.8% |
| 13 | Thrivent Financial for Lutherans | 548,932 | $2.0M | 0.0% | 0.6% | 0.0% |
| 14 | JONES FINANCIAL COMPANIES LLLP | 531,238 | $1.9M | 0.0% | 0.6% | +12.1% |
| 15 | Kanen Wealth Management LLC | 490,454 | $1.8M | 0.4% | 0.5% | 0.0% |
| 16 | WOLVERINE ASSET MANAGEMENT LLC | 378,116 | $1.4M | 0.0% | 0.4% | -19.7% |
| 17 | ABSOLUTE INVESTMENT ADVISERS, LLC | 372,457 | $1.4M | 0.1% | 0.4% | -20.6% |
| 18 | Chicago Partners Investment Group LLC | 333,688 | $1.2M | 0.0% | 0.4% | -9.4% |
| 19 | BANK OF AMERICA CORP /DE/ | 305,060 | $1.1M | 0.0% | 0.3% | -3.6% |
| 20 | Pathway Financial Advisers, LLC | 285,886 | $1.0M | 0.3% | 0.3% | +2.3% |
| 21 | RFG Advisory, LLC | 273,827 | $996,731 | 0.0% | 0.3% | -4.6% |
| 22 | FIRST TRUST ADVISORS LP | 263,308 | $958,441 | 0.0% | 0.3% | +14.3% |
| 23 | ENVESTNET ASSET MANAGEMENT INC | 239,445 | $871,580 | 0.0% | 0.3% | +41.1% |
| 24 | PIN OAK INVESTMENT ADVISORS INC | 233,058 | $848,000 | 0.6% | 0.2% | 0.0% |
| 25 | Fortis Group Advisors, LLC | 206,291 | $750,900 | 0.1% | 0.2% | -2.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation. Research, not investment advice.