Eaton Vance Tax-Advantage Global Dividend Opp. Replay the stock market charts of ETO day by day, back to 2003. Open long and short positions without spending any money. Eaton Vance Tax-advtgd Global Divid Oppo is a diversified, closed-end management investment company. Its investment objective is to provide a high level of after-tax total return consisting of tax-advantaged dividend income and capital appreciation.