Copper's red-hot run to above $14,000 a metric ton on Thursday leaves investors facing a decision over whether or not to chase the market higher. Benchmark copper on the London Metal Exchange jumped 11% to a record $14,527.50 a ton in a rally fuelled by speculators, with momentum spurring yet further buying. It was the biggest one-day gain for LME copper since November 2008, which traders said was fed by short-covering. Those bearish investors were caught out, having expected a pullback after warnings that high prices were not sustainable due to high inventories and weak physical demand. But many funds remain ... (full story)