Really? I have been under the assumption for many years the the commodities markets are thoroughly rigged. See for example (among many others) the Goldman alumi

Really? I have been under the assumption for many years the the commodities markets are thoroughly rigged. See for example (among many others) the Goldman aluminum warehousing case [0-1]. [0] http://www.nytimes.com/2013/07/21/business/a-shuffle-of-aluminum-but-to-banks-pure-gold.html?pagewanted=all http://www.nytimes.com/2013/07/21/business/a-shuffle-of-alum... [1] http://money.cnn.com/2014/11/20/investing/goldman-commodity-manipulation-wall-street/ http://money.cnn.com/2014/11/20/investing/goldman-commodity-... etc...