March copper has sustained heavy losses this morning, but during early market action has not fallen below last week's lows. However, pressure from outside markets has been thought to be fairly significant today, with other metals and commodity prices going through extended selloffs. While the Dollar has moved slightly higher this morning, some traders feel that physical commodity markets are not receiving their selling pressure from currency market action. Many copper traders are pointing towards ideas that a Chinese slowdown in physical demand could be applying pressure on copper prices. News of a negative UK 4th quarter GDP reading overnight has been widely seen as another element that dampens support for copper over the short term. Given the weak performance of many commodity markets this morning, US economic data might be given added significance today. LME Copper Stocks were 389,075 tons, up 7,575 tons.