CHICAGO, Oct. 8 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse derivatives exchange, will close only the Foreign Exchange and Interest Rate open outcry trading floors on Monday, October 13, in observance of Columbus Day. On Friday, October 10, the Foreign Exchange and Interest Rate trading floors will cease trading at noon. Commodities, Equities, GSCI, Weather, Real Estate, Energy and Metals products will trade in open outcry during regular trading hours.