Prosperity Bancshares to Acquire Stellar Bancorp in $2 Billion Texas Bank Merger
Prosperity Bancshares has agreed to buy Stellar Bancorp in a deal worth around $2 billion. The acquisition, announced recently, will merge the two Texas-based lenders into a $54 billion-asset bank. Investors have responded positively, with Stellar's shares rising by 12.14% on the news while Prosperity's stock saw a modest 7.90% gain.
The transaction combines Prosperity's strong residential mortgage business with Stellar's focus on commercial real estate and commercial and industrial loans. Under the terms, Prosperity will pay $39.08 per Stellar share, using a mix of cash and stock. The deal is structured to minimise shareholder dilution, though Prosperity's tangible book value (TBV) is expected to drop by nearly 8%, with an earn-back period of about 4.5 years.
Analysts project the acquisition will boost Prosperity's earnings by over 9% in 2027. The combined bank is also forecast to achieve an efficiency ratio of 44% by that year. To ensure a smooth transition, two of Stellar's directors will join Prosperity's board, and key Stellar executives will remain in their roles.
The new entity will dominate the Beaumont County deposit market, securing the top spot, while ranking fifth in Houston. Investors have praised the financing approach, which includes low-interest green bonds and equity crowdfunding. This structure not only reduces dilution but also enhances the bank's environmental, social, and governance (ESG) profile, as noted in discussions on platforms like Seeking Alpha and Bloomberg in late 2025.
The merger will create one of Texas's largest regional banks, with a strong footprint in Houston and Beaumont. The transaction is set to close in 2026, subject to regulatory approvals and shareholder votes. Once completed, the combined bank will hold $54 billion in assets and a leading position in key Texas markets.
