

Columbia Banking System vs Old National
Columbia Banking System is a Pacific Northwest commercial bank that's scaled through mergers to become a major regional lender serving businesses and consumers across the Western U.S., while Old National Bancorp is a Midwest-rooted commercial bank with a long history of disciplined community banking and strategic acquisitions across Illinois, Indiana, and beyond. Both banks are mid-size regional lenders that've grown their franchises through M and A while maintaining credit quality as a core differentiator. The Columbia Banking System vs Old National comparison shows how geography, loan mix, and merger integration track records shape the valuation premium investors assign to two similarly-sized regional banking franchises.
Columbia Banking System is a Pacific Northwest commercial bank that's scaled through mergers to become a major regional lender serving businesses and consumers across the Western U.S., while Old Natio...
Investment Analysis
Pros
- Strong net interest income growth with an increase of $59 million in Q3 2025, showing improved profitability and momentum.
- Recently completed strategic acquisition of Pacific Premier, expanding Western U.S. footprint and enhancing top-quartile return potential.
- Robust financial health with a low debt-to-equity ratio around 37.3% and a strong dividend yield of approximately 5.45%.
Considerations
- Columbia Banking System's share price declined about 6.3% over the past 12 months, indicating recent market challenges.
- Profitability impacted by acquisition-related expenses, showing potential short-term cost pressures.
- Stock valuation appears moderately priced with a forward P/E of about 9, limiting near-term upside based on some analyst forecasts.

Old National
ONB
Pros
- Old National Bancorp has a diversified regional banking presence enhancing market resilience and customer reach.
- Consistent revenue growth driven by a broad portfolio of financial services including commercial and retail banking segments.
- Stable capital position with ongoing investments in technology to improve operational efficiency and customer experience.
Considerations
- Exposure to regional economic cyclicality may affect loan performance and deposit growth in adverse conditions.
- Pressure from rising interest rates could impact net interest margins negatively in the short to medium term.
- Facing increasing competition from larger banks and fintech firms, potentially limiting market share expansion.
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