Securities and Exchange Commission Chairman Mary Jo White is having difficulty finding an industry veteran or seasoned attorney to fill a top post overseeing trading firms and stock exchanges—a critical role for the agency given growing concerns about the speed and complexity of trading.
Ms. White has approached—and been turned down by—more than half a dozen senior industry officials and attorneys about possibly heading the agency’s trading and markets division, according to people familiar with the matter. The individuals she has approached include Nasdaq OMX Group Inc.’s NDAQ +0.12%Eric Noll and former Financial Industry Regulatory Authorityexecutive Stephen Luparello, who is now at a law firm.