By Nupur Anand, Niket Nishant, Saeed Azhar (Reuters) -One of the leading contenders to become CEO of JPMorgan Chase, Jennifer Piepszak, on Tuesday took herself out of the running for now, raising the chances of a trio of other executives vying for Wall Street's top job.

JPMorgan Chase & Co. on Tuesday named Jennifer Piepszak its new chief operating officer, but the company’s four major department heads remain more likely successors to Chief Executive Jamie Dimon to head up the largest U.

Jamie Dimon's "hit-by-the-bus" heir, Daniel Pinto, is retiring. The incoming chief operating officer, Jennifer Piepszak, does not want the CEO role.