If economic optimism had a hue, it would be copper.
The industrious metal that's used in everything from water pipes to electrical wires is one of the first commodities to recover following a downturn, making it a favorite among investors eagerly awaiting a turnaround. That was the case on Thursday when U.S. data showed that the economy contraction in the first quarter was revised to less than previously thought. Copper for September delivery climbed to its highest level in recent weeks before settling up by 3.5 cents, or 1.5%, at $2.316 a pound.