CME hikes margins for copper, platinum futures (by Carla Mozee)
LOS ANGELES (MarketWatch) -- CME Group (cme) , the parent company of the New York Mercantile Exchange, on Monday raised margin requirements for trading copper and platinum futures contracts. The changes go into effect Tuesday. Margins are money investors must put up to be able to trade and hold futures contracts. Initial requirements for copper contracts on the Comex division rose to $7,763 per contract from $6,750, and maintenance margins climbed to $5,750 each contract from $5,000. For platinum futures on Nymex, initial requirements were hiked to $4,950 per contract from $3,850, and maintenance margins rose to $4,500 each from $3,500.