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A man stands in front of an electronic board displaying share prices at a securities exchange house in Shanghai, China, on Friday, Sept. 18, 2015. China's stocks headed for the steepest weekly loss this month in shrinking turnover amid growing concern government measures to support the world's second-largest equity market and economy are failing. Photographer: Qilai Shen/Bloomberg via Getty Images

A man stands in front of an electronic board displaying share prices at a securities exchange house in Shanghai, China, on Friday, Sept. 18, 2015. China's stocks headed for the steepest weekly loss this month in shrinking turnover amid growing concern government measures to support the world's second-largest equity market and economy are failing. Photographer: Qilai Shen/Bloomberg via Getty Images