Goldman has already been leaking e quity derivatives traders. If Kuebler's building a team at J.P. Morgan, the likelihood is that he will tap GS again. Kuebler isn't the only one hiring at J.P.M. Holli Dobay, a New York-based analyst in electronic execution services at Bank of America Merrill Lynch is understood to have quit for J.P. Morgan just 11 months into her banking career. Doblay is thought to be joining the team run by Nikki Acton, J.P.M's U.S. based global head of liquidity solutions. Like Kuebler, Acton is thought to be looking for more people. Other, potentially more senior, hires are expected to follow. J.P. Morgan's willingness to pick up equities juniors comes after the bank successfully doubled its equities market share in the past decade after copying Morgan Stanley's strategy of focusing on electronic execution and prime broking.