Fifth Third Bancorp reported a significant profit increase in the second quarter, driven by the integration of its Comerica acquisition. The bank posted a profit of $763 million, or 83 cents a share, up from $591 million, or 88 cents a share, in the year-earlier quarter.

Adjusted earnings reached $1.02 a share, surpassing analyst expectations of 84 cents. Net interest income surged 48% to $2.22 billion, absorbing Comerica's business and benefiting from organic loan production, fixed-rate asset repricing, and disciplined liability management.

Revenue gains were broad-based across wealth-and-asset management, commercial-payments, consumer-banking, and capital-markets divisions. The Comerica acquisition has translated to major gains as Fifth Third continues to integrate the combined operations.