Fifth Third Bancorp has announced plans to acquire Comerica in an all-stock transaction valued at $10.9 billion. This merger will create the ninth-largest bank in the United States, consolidating two significant regional banking institutions. The deal comes amid a wave of bank mergers gaining traction, and discussions are already surfacing regarding potential changes, including whether Comerica Park, named after the bank, will be renamed following the acquisition. The stock of Comerica has surged in response to the announcement, highlighting investor optimism around the merger.