Santander’s planned $12.2 billion purchase of Webster Financial faces new uncertainty after President Donald Trump said trade with Spain will halt, according to a client note from Wells Fargo analyst Mike Mayo. Mayo said the president’s comment, made publicly on the day of his note, could make U.S. regulatory clearance for the deal incrementally harder to obtain.
Mayo moved Webster’s stock to an underweight rating, citing the added regulatory risk to the transaction, which was announced last month. "The U.S. president today said trade with Spain will halt," Mayo wrote. "We extrapolate this comment to mean that U.S. regulatory approval for Banco Santander to acquire Webster will be incrementally harder to obtain."
Santander, the largest bank in Spain, agreed to the acquisition with the aim of becoming one of the top 10 retail and commercial banks in the United States. If the transaction is completed, the combined U.S. balance sheet would total approximately $327 billion in assets.
In his note, Mayo outlined potential outcomes should diplomatic and trade frictions escalate. At best, he said, rising U.S.-Spain tensions would extend the time regulators need to approve the deal. At worst, a denial of approval could open the door for other banks to attempt to buy Webster, though Mayo warned any competing bid could reduce the eventual sale price by about 10%.
The market reacted to the development: Webster’s shares were down 3.2% in late afternoon trading, while Santander’s shares closed more than 6% lower.
Market context and implications
The analyst’s note ties a political decision directly to the regulatory pathway for a major cross-border banking acquisition. The core factual elements remain the signed purchase agreement, the stated asset size of the combined U.S. operations if completed, the reported downgrade of Webster’s stock to underweight, and the near-term share-price movements for both institutions.
Summary of analyst guidance
- Mayo downgraded Webster to underweight because of potential regulatory obstacles stemming from the president’s statement.
- He projects that heightened trade tensions would likely lengthen the approval process or, in the event of denial, draw other bidders who could depress the sale price by roughly 10%.
Key takeaways for investors and relevant sectors
- Banking and financial services: Cross-border M&A involving a foreign-headquartered buyer may face increased regulatory scrutiny when diplomatic relations sour.
- Mergers and acquisitions: Timelines for deal closure can be materially extended by political and trade developments, affecting valuations and strategic outcomes.
Risks and uncertainties highlighted in the note
- Regulatory risk - U.S. approval could become more difficult to secure, potentially delaying or preventing the Santander-Webster transaction.
- Price risk - If regulators block Santander’s acquisition, competing bids could emerge but possibly at a lower price, with Mayo estimating about a 10% reduction.
- Market reaction risk - Share prices for the involved banks have already moved lower in response to the development, reflecting investor concern about deal execution.
Where the note is limited: it reports the analyst’s interpretation of a presidential statement and lays out potential scenarios, but it does not provide a definitive prediction on regulatory decisions or other bidders' actions.