WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC.

Western Asset High Income Opportunity Fund Inc. is a closed-end fixed-income mutual fund that invests primarily in high-yielding corporate debt securities in the U.S. market. Launched in 1993 and incorporated in Maryland, the fund is managed by Legg Mason Partners Fund Advisor, LLC, with co-management from Western Asset Management Company and Western Asset Management Company Limited. The fund targets corporate debt obligations rated around B credit quality and maintains an average portfolio duration of approximately four years, benchmarking performance against the Barclays Capital U.S. Corporate High Yield 2% Issuer Cap Index.

As a closed-end fund structure, HIO generates revenue primarily through management fees charged on assets under administration rather than traditional product sales. The fund distributes income to shareholders through regular dividend payments funded by the underlying portfolio's interest income and potential capital gains. The fund is headquartered in New York, NY, and trades on the New York Stock Exchange with a market capitalization of approximately $0.4 billion. Revenue generation depends on assets under management and the spread between portfolio yield and operating expenses, with performance tied directly to credit conditions and interest rate movements in the high-yield corporate debt market.