Comerica Inc. stock gains as merger value reaches USD 82.88

Comerica Inc. stock (ISIN US2003401070) is anchored at USD 82.88 per share as of September 19, 2026, under the agreed all-stock transaction with Fifth Third Bancorp. The deal implies a Comerica market value of about USD 10.9 billion, making the merger terms the central valuation reference for shareholders.

Merger terms set valuation

According to Ad hoc news on September 20, 2026, the transaction value was cited at USD 82.88 per Comerica share and the implied market value was about USD 10.9 billion. The comparison is direct: the agreed deal value is the reference point, rather than a standalone valuation based only on Comerica's latest trading price.

The exchange ratio is 1.8663 new Fifth Third shares for each Comerica share, according to Robinhood on September 22, 2026. That ratio gives shareholders a defined share-based consideration, while the final value remains linked to Fifth Third's market price until the transaction is completed.

Share exchange drives investor math

The transaction structure changes the key calculation for investors. A Comerica holder receives 1.8663 Fifth Third shares for every old Comerica share, so the value of the consideration moves with Fifth Third rather than remaining fixed at USD 82.88.

The merger also creates a concrete counter-factor: the USD 10.9 billion implied valuation is based on the agreed exchange ratio and the cited transaction terms, not on a cash payment. The difference matters because market movements in Fifth Third can change the effective value delivered to Comerica shareholders before closing.

Stock reference remains USD 82.88

Comerica stock is referenced at USD 82.88 on the NYSE as of September 19, 2026. The same dated transaction terms imply about USD 10.9 billion in market value and a 1.8663-for-one share exchange, giving investors three concrete benchmarks for the proposed combination.

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