BlueMountain's Feldstein a Best Friend to JPMorgan

June 21 (Bloomberg) -- Bloomberg's Erik Schatzker reports that BlueMountain Capital Management LLC, a hedge fund co-founded by former JPMorgan Chase & Co. executive Andrew Feldstein, is aiding the lender as it unwinds trades in an index at the heart of a loss of more than $2 billion. He speaks on Bloomberg Television's "Market Makers." (Source: Bloomberg)