Trader Holds $3 Billion of LME Copper - WSJ.com

Trader Holds $3 Billion of LME Copper - WSJ.com:"... the ability of a few traders to hold huge swaths of the world's stockpiles is coming under scrutiny.The latest example is in the copper market, where a single trader has reported it owns 80% to 90% of the copper sitting in London Metal Exchange warehouses, equal to about half of the world's exchange-registered copper stockpile and worth about