Apparently it is JP Morgan according to Zero Hedge:"Not content...

Apparently it is JP Morgan according to Zero Hedge:

"Not content with holding the biggest paper short position in silver, JP Morgan is now intent on cornering the copper market, as the monopolist firm stretches its FRBNY-facilitated muscles in an attempt to stem the massive losses incurred via its silver short. As the Telegraph reports, following up on a story of a "rogue" purchaser who bought up $1.5 billion in copper on the LME, "the American investment bank JP Morgan is the mystery trader that grabbed more than half the copper on the London Metal Exchange." This is a huge copper purchase, and represents between 50% and 80% of the 350,000 tonnes in reserves, confirming that JPM is now the dominant manipulator in yet another commodity market."

http://www.zerohedge.com/article/jpm-corners-copper-market-lme-says-not-worry-all-good