US copper futures opened lower and held near session lows Wednesday morning as the dollar corrected higher and weaker-than-expected factory orders and services data disappointed the broader market. Copper for July delivery was trading down 4.05 cents, or nearly 1.8 percent, at $2.2570 a lb by 10:50 am EDT (1450 GMT) on the New York Mercantile Exchange's COMEX division.
Session range from $2.25 to $2.3355. On Tuesday, the benchmark July contract climbed to a 7-1/2-month peak at $2.3530. COMEX estimated futures volume at 8,251 lots by 10 am.