First Financial Bancorp Acquires BankFinancial, Expanding into Chicago Market

First Financial Bancorp Expands into Chicago with BankFinancial Acquisition

First Financial Bancorp solidifies its growth strategy with the successful acquisition of BankFinancial Corporation, which becomes effective on January 1, 2026. This all-stock transaction marks a significant milestone for First Financial as it makes its entry into the Chicago market, characterized by retail consumer-focused locations. By acquiring BankFinancial, First Financial expands its reach in the Midwest, adding 18 financial centers to its portfolio. The acquisition not only enhances First Financial's core deposit franchise but also broadens its commercial loan, lease, and deposit offerings, reflecting a robust commitment to meeting the diverse financial needs of clients in the region.

The integration of BankFinancial into First Financial is poised to create substantial growth and profitability opportunities. With the completion of this acquisition, First Financial's total assets will rise to $22 billion, enabling the company to provide a wider array of services that include consumer, commercial, specialty lending, and wealth management. Archie Brown, president and CEO of First Financial Bank, emphasizes the company's dedication to creating opportunities for both clients and communities in Chicago, signaling an optimistic outlook for the bank's future in this urban market. The strategic move aligns with First Financial's previous expansions, including the establishment of a commercial lending presence in Chicago's Fulton Market in 2023 and the acquisition of Agile Premium Finance in Lincolnshire in 2024.

Following the acquisition, BankFinancial branches will retain their name until the completion of a conversion process set for June 2026. During this period, both banks will consolidate their products, processes, and operating systems to streamline operations and enhance service delivery. Clients of BankFinancial will receive timely information regarding account conversions, although they are advised to continue using existing services without disruption in the interim. Similarly, clients of First Financial will experience no service interruptions due to the merger. This careful approach to integration underscores First Financial's commitment to maintaining customer satisfaction during the transition.

In addition to its Chicago-focused expansion, First Financial has been actively enhancing its commercial banking footprint throughout the Midwest. The completion of the Westfield Bank acquisition in November 2025 further supports this growth trajectory, positioning First Financial as a formidable player in the region. The company's strategic initiatives reflect a calculated approach to building a comprehensive banking network that serves the evolving needs of its clientele.