Investors look at screens showing stock information at a brokerage house in Shanghai, China in this May 28, 2015 file photo. China's stock market face a make-or-break week after a 30 percent plunge in... more 
Investors look at screens showing stock information at a brokerage house in Shanghai, China in this May 28, 2015 file photo. China's stock market face a make-or-break week after a 30 percent plunge in the last three weeks forced officials to roll out an unprecedented series of steps at the weekend to prevent a full-blown market crash. To match story MARKETS-GLOBAL/ REUTERS/Aly Song/FIles less 
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Reuters | Photo By ALY SONG / REUTERS
Sun, Jul 5, 2015 9:39 PM EDT