Murphy, who often serves as the face of Fidelity in place of her publicity-shy boss, Abby Johnson, now oversees a personal investing empire with a record $1.9 trillion in assets under administration—nearly twice what it was when she took the helm in 2009. She has also emerged as a leader in the company’s digital efforts, rolling out new mobile apps and launching Fidelity’s first “robo-adviser” in July, an appeal to young investors looking for affordable financial help. Murphy is known for her focus on female investors, who she says are an underserved market.