After a bruising year for the stock, one concentrated fund stepped in anyway.Chicago-based Wishbone Management initiated a new position in EPAM Systems (EPAM 0.69%), buying 100,000 shares valued at $15.08 million, according to a November 13 SEC filing.What HappenedAccording to a filing with the U.S. Securities and Exchange Commission dated November 13, Wishbone Management disclosed a new stake in EPAM Systems (EPAM 0.69%), acquiring 100,000 shares in the third quarter. The position, valued at $15.08 million ...