Traders work in the currency pit at the Chicago Mercantile Exchange

 
Traders work in the currency pit at the Chicago Mercantile Exchange
Traders, including Marc Jay Miller,(R) work in the currency pit at the Chicago Mercantile Exchange, June 21, 2010. China's yuan surged to a five-year peak on Monday, sending stocks higher across the globe as Beijing signaled ahead of this weekend's G20 summit that it would deliver on pledges of greater currency flexibility. REUTERS/John Gress (UNITED STATES - Tags: BUSINESS)