JPMorgan Chase & Co.'s CFO Marianne Lake is scheduled to step down as the bank's top financial officer after about seven years in the role, effective May 1, the bank said in an internal memo Wednesday afternoon. She will become head of all of the company's consumer-lending operations. The 49-year-old executive will be replaced as CFO by Jennifer Piepszak, JPMorgan's current CEO of card services. Lake was appointed CFO and member of the bank's operating committee back in 2012, and has been viewed by industry watchers (and still is) as a possible successor to CEO Jamie Dimon, when he steps down. Dimon said of the planned change: "We're extremely fortunate that she will be heading a major group of businesses that is core to how we serve millions of Chase customers." Lake will remain a member of the bank's operating committee and become CEO of consumer lending, which will include the bank's credit card, home and auto loan businesses. Meanwhile, Piepszak, 49, is a more than 20-year veteran at JPMorgan Chase. Shares of JPMorgan, the nation's largest bank by market cap, finished Wednesday's session up 2.8% and have gained 17.1% so far this year, with that rise aided by better-than-expected results from the bank last week. JPMorgan's stock performance has thus far outperformed the broad-market S&P 500 index , which is up 15.7% year to date, and the Dow Jones Industrial Average, where it is a component, which has returned 13.4% over the same period. Corrections and amplifications: Fixes the ages of both Piepszak and Lake, which was incorrectly stated in an earlier version. Both executives are 49 years old.