There has been a 'sea-change' in commodities, and hedge funds have lost $40 billion

Reuters/ Tyrone Siu Commodities trading company Trafigura says there's been a "sea-change" in investor attitudes in the commodities sector. In other words, investors are feeling negative and many are fleeing commodity-focused hedge funds.  A number of hedge funds that specialize in trading commodities have suffered in 2015 as asset prices have plunged. The S&P GSCI commodity index, which is made up of the most liquid commodity futures, has fallen more than 46% in the last 12 months. There...