UBS AG plans to start trading Chinese stock-index futures after turnover more than tripled in the past two years amid growing investor demand for ways to hedge against equity losses. The Swiss bank will probably offer contracts on the CSI 300 Index by next year after acquiring a Chinese commodities-futures brokerage this month, said Yang Xia, the head of China equities at UBS. Trading of the securities climbed more than 250 percent over the last two years as the CSI 300 slumped, data compiled by Bloomberg show. The index has fallen 7.6% this year, extending its losses since the end of 2009 to 40%, and closed at a 14-month low yesterday.