Fifth Third Bancorp announced on 6 October 2025 that it had agreed to acquire Comerica in an all-stock transaction valued at $10.9 billion, a deal that would bring together two of the United States' most recognisable regional banking franchises. The agreement, disclosed in a press release from Fifth Third's media centre, would position the merged institution as the ninth-largest bank in the country by assets, marking a significant step up in scale for both organisations.
Under the terms of the arrangement, Comerica shareholders will receive 1.8663 Fifth Third shares for each share of Comerica they hold, an exchange ratio that implies a premium of approximately 20% to Comerica's ten-day volume-weighted average stock price. Fifth Third's board concluded that the premium level was appropriate to secure a combination that management described as strategically compelling for both sets of shareholders and for the communities both banks serve.
A COMBINED BALANCE SHEET OF $288 BILLION
The merged entity would hold approximately $288 billion in total assets, a figure that would elevate the combined bank well above the tier of purely regional players and into direct competition with some of the larger US banking groups in terms of balance sheet capacity. At that scale, the business would have greater ability to invest in technology, talent, and product development while maintaining the community banking relationships that have historically defined both Fifth Third and Comerica's customer propositions.
For Fifth Third, headquartered in Cincinnati, the acquisition of Dallas-based Comerica provides significant geographic diversification, particularly into the Texas market where Comerica has deep roots in commercial and corporate banking. Comerica also has established operations in California and Michigan, and its specialisation in serving middle-market companies — businesses that are often the most profitable and loyalty-driven commercial banking clients — was cited by Fifth Third's management as a central element of the strategic rationale for the combination.
The all-stock structure of the deal means that Fifth Third is not deploying cash at closing, preserving the capital positions of both institutions as they navigate the regulatory review process. It also means that Comerica shareholders become holders of Fifth Third stock, giving them continued exposure to the value creation expected from the combined entity rather than receiving a cash consideration that removes them from future upside.
REGULATORY AND SHAREHOLDER APPROVALS AHEAD
A transaction creating a bank of approximately $288 billion in assets will require detailed examination from both the Federal Reserve and the Office of the Comptroller of the Currency, and the companies said they expected the regulatory review to take several months before a determination could be reached. Fifth Third indicated it was confident the deal could withstand regulatory scrutiny, but acknowledged that the approval process for a combination of this size involves a thorough assessment of competitive, financial stability, and community reinvestment considerations.
Shareholder votes at both Fifth Third and Comerica will also be required before the transaction can close. The 20% premium to Comerica's recent trading price is designed to persuade its investors that accepting Fifth Third shares represents better long-term value than remaining an independent bank or pursuing alternative options, while Fifth Third's own shareholders will need to assess whether the dilution inherent in an all-stock acquisition is justified by the projected earnings power and strategic positioning of the combined franchise.
The deal arrives at a moment when US regional banking consolidation has been a prominent theme for investors and policy makers following a period of stress in the sector that prompted closer examination of mid-sized institutions' balance sheets, funding structures, and long-term viability as standalone entities. Fifth Third's move to acquire Comerica at a significant premium reflects a view that scale is increasingly necessary to absorb the technology investments and regulatory costs that competitive banking in the current environment demands.