Eaton Vance Short Duration Diversified Income Fund (NYSE: EVG) is a diversified closed-end management investment company that seeks current income through investments in a portfolio of short duration fixed-income securities. The Fund primarily invests in senior secured floating-rate loans, bank deposits denominated in foreign currencies, debt obligations of foreign governmental and corporate issuers, and mortgage-backed securities; it employs leverage through derivatives and borrowings to enhance returns; its portfolio features securities across diversified sectors with an average duration of approximately 1.76 years and average credit quality of at least BBB. Eaton Vance Management serves as investment adviser, with a team comprising Catherine C. McDermott (since 2008), Andrew Szczurowski, CFA (since 2011), Akbar A. Causer (since 2021), and Federico Sequeda, CFA (since 2021); the Fund benchmarks performance against the S&P/LSTA Leveraged Loan Index and pays stable monthly distributions to common shareholders, which may include ordinary dividends, capital gains, and return of capital. The Fund was launched on February 28, 2005, is domiciled in the United States, and operates with total net assets of approximately $149.9 million as of recent reporting; it trades on the New York Stock Exchange and focuses on U.S. fixed-income markets with international exposure through foreign debt and currency deposits. In October 2025, the Fund revised its principal investment strategies effective October 17, eliminating the 25% minimum investment requirement across its core categories, removing the weighted average credit quality restriction, and enhancing portfolio flexibility; these changes, announced alongside similar updates for Eaton Vance Limited Duration Income Fund, aim to adapt to evolving market conditions and will appear in the next annual shareholder report.