Eaton Vance Tax-Managed Buy-Write Income Fund (the Fund) is a diversified, closed-end management investment company. The Fund's primary investment objective is to provide current income and gains, with a secondary objective of capital appreciation. The Fund invests in a diversified portfolio of common stocks. It seeks to generate current earnings by writing index call options with respect to a substantial portion of its common stock portfolio. The Fund invests in various sectors, including information technology, financials, healthcare, energy, consumer staples, consumer discretionary, industrials, utilities, food products, construction and engineering, equipments, aerospace and defense, automobiles, beverages, materials and telecommunication services. Eaton Vance Management (EVM) is the investment advisor of the Fund.