Bloomberg reported that hesitance from investors waiting on signs that central banks will act to bolster the economy caused copper to drop for the first time in four sessions.
As quoted in the market news:
Copper futures for September delivery declined 0.3 percent to settle at $3.416 a pound at 1:14 p.m. on the Comex in New York. The metal rose 2.2 percent in the previous three sessions in the longest rally since mid-June.
On the London Metal Exchange, copper for delivery in three months fell 0.3 percent to $7,545 a metric ton ($3.42 a pound).