VWO

VWO is the Vanguard FTSE Emerging Markets ETF, a single fund that holds thousands of stocks from developing economies like China, India, Taiwan, Brazil, and South Africa. When you buy one share, you own a tiny slice of all those companies at once, so your money rises or falls with emerging markets as a group rather than any one business. Vanguard makes its money by charging a small yearly fee, one of the lowest in the industry, for running the fund.