US copper futures ended up for a third straight day on Wednesday, extending a bounce from last week's test and hold of key technical support, with short-term price direction pegged to swings in equity markets, traders said.
Copper for September delivery rose 4.40 cents, or nearly 1.5 percent, to settle at $3.0150 per lb on the COMEX metals division of the New York Mercantile Exchange. Range from $2.9435 to $3.0270. COMEX estimated copper futures volume at 21,016 lots by 1 pm EDT (1700 GMT).