S&P Revised Bank of N.T. Butterfield & Son Ltd. Outlook to Negative on Planned Acquisition

  • S&P affirmed Bank of N.T. Butterfield's (BNTB) BBB+ and the A-2 short-term issuer credit ratings and simultaneously revised the outlook to Negative from Stable following the bank's planned acquisition of CIBC Caribbean 91.7% interest in CIBC Caribbean Bank Ltd. for $1.794Bn.
  • The acquisition will be financed by about $1.1Bn of cash and $703Mn in Butterfield shares, in a deal that's expected to close in the first half of 2027. BNTB will look to acquire the remaining 8.3% stake from minority shareholders. The acquisition is projected to nearly double BNTB's asset base, expand its geographic footprint across the Caribbean, diversify revenue streams, and strengthen its deposit franchise.
  • Despite the strategic benefits, the transaction is expected to significantly weaken capital levels. BNTB's Common Equity Tier 1 (CET1) ratio is projected to decline to around 12% from 27.6% at year-end 2025. The CET1 ratio is a key metric used by regulators and investors to measure a bank's financial strength and its ability to withstand economic downturns.
  • Meanwhile, its risk-adjusted capital (RAC) ratio will fall significantly at the transaction's closing. The bank's RAC ratio was 13.6% at the end of 2025, and it is anticipated to drop to the 7%-10% range which is considered adequate, from the current 10%-15% range that was considered strong.
  • The Negative Outlook also reflects integration and execution risks, as BNTB will need to successfully merge a substantially larger operation while rebuilding capital and achieving expected cost synergies.
  • Offsetting these concerns are BNTB's strong profitability, proven ability to generate capital internally, and the enhanced scale and diversification that the acquisition is expected to deliver over the longer term.
  • The outlook could return to Stable if the bank successfully integrates CIBC Caribbean and demonstrates meaningful capital rebuilding following the transaction's completion.

(Source: S&P Global Ratings)