Eaton Vance Tax-Managed Buy-Write Opportunities Fund is a closed-ended equity mutual fund launched and managed by Eaton Vance Management. It is co-managed by Parametric Portfolio Associates LLC. The fund invests in the public equity markets of the United States. It seeks to invest in stocks of companies operating across diversified sectors. The fund also writes call options on one or more U.S. indices on a substantial portion of the value of its common stock portfolio. It benchmarks the performance of its portfolio against the S&P 500 Index, the CBOE S&P 500 BuyWrite Index, the NASDAQ-100 Index, and the CBOE NASDAQ-100 BuyWrite Index. Eaton Vance Tax-Managed Buy-Write Opportunities Fund was formed on June 30, 2005 and is domiciled in the United States.