Jes Staley CEO of JPMorgan Chase & Co.'s Investment Bank

Jes Staley CEO of JPMorgan Chase & Co.'s Investment Bank

Daniel Acker/Bloomberg

Jes Staley, chief executive officer of JPMorgan’s investment bank, set aside 35 percent of the division’s revenue for pay in the first nine months, down from 37 percent in the same period a year earlier, excluding a 2010 U.K. bonus tax.