Trader at Morgan Stanley Faces Inquiry on Possible Manipulation

Mr. Hadden, a former Goldman partner, was one of the most profitable bond traders on Wall Street.”

“But there was more to his story than just stellar financial results. He had left his previous employer, Goldman Sachs, after questions about his trading activity. And now, Mr. Hadden is under investigation over his trading in Treasury futures while at Goldman, according to a regulatory filing.”

“Specifically, regulators at the CME Group, which runs commodity and futures exchanges, are investigating whether Mr. Hadden’s purchases or sales of Treasury futures late in the trading day manipulated closing prices in the market and, in turn, made other of his trades more profitable, according to people briefed on the matter who were not authorized to speak publicly.”

“Mr. Hadden is one of the highest paid professionals at Morgan Stanley and has been known throughout his career for aggressive and profitable risk taking.