U.S. Bancorp

U.S. Bancorp, with $680 billion in assets, is the most operationally efficient large US bank, achieving a return on assets (ROA) of 1.35%—1.5 times the 0.9% average for the top 10. Its efficiency ratio of 49% is cheaper than #7's 55% average, driven by 70,000 employees generating $28 billion in annual revenue. For 15 consecutive years, it has topped peer rankings on cost management, and its net interest margin of 3.1% outperforms the typical rival's 2.8%, proving that disciplined banking can still deliver 6% year-over-year profit growth.