Copper futures rose to a three-week high in New York after the Federal Reserve unexpectedly maintained monetary stimulus in the U.S., the second-biggest consumer of the metal. Tin rose to a six-month high in London.
Policy makers want to see more evidence that improvement in the U.S. economy will be sustained before adjusting the Fed’s $85 billion in monthly debt purchases, the central bank said yesterday. A gauge of global equities jumped to a five-year high.