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SHANGHAI, CHINA - MAY 12: A woman in front of a Stock Exchange board in Shenyin and Wanguo Securities' brokerage house (the color red means the stock is going up, green means it goes down), on May 12, 2015, in Shanghai, China. In China, home of the Shanghai and the Shenzhen Stock Exchanges, small shareholders, often retired, are responsible of 80% of the market turnover, four times more than in Western Stock Exchanges dominated by professional traders and hedge funds. (Photo by Lucas Schifres/Getty Images)