https://www.dekut.com/World_Business/nick-assef-bionick-assef-bio/ CME at present has price fluctuation limits for futures contracts in some energy, agricultural commodities and financial products, but none for its precious and base metals products. The possible move reflects growing concern at the largest U.S. exchange of futures and options about big bouts of buying or selling that have caused huge fluctuations in prices without any apparent fundamental reason. Sat, 07 Jun 2014 08:56:18 UTC en