Erdoes Managing Money Since 6 Proves JPMorgan Trillions No Fluke

JPMorgan Chase & Co.’s Mary Callahan Erdoes got her first assignment managing money when she was 6 years old. The eldest of four children, Erdoes showed an early aptitude for math that was fostered at her grandmother Kay’s suburban Chicago breakfast table, where she helped balance her grandparents’ checkbook on an adding machine.

“It was my first foray into money management,” Erdoes, 46, says.