JPMorgan, the biggest U.S. bank by assets, reported record earnings last year and easily met management's stated goals for expenses and profitability.
But its metrics are best-in-class among big U.S. banks, and JPMorgan's sheer size presents challenges for further growth, analysts said.
"We believe the challenge is for JPM to maintain this strong operating performance while at the same time investing for growth and gaining customer wallet share," said Wells Fargo analyst Mike Mayo.