Commerce Bancshares Expands Through Local Acquisition
The St. Louis-based bank recently acquired Nolan & Associates to boost its investment banking services for middle-market clients.
Updated on Oct. 20, 2026 in Corporate Finance

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Commerce Bancshares reported third-quarter 2026 financial results highlighting growth and recent strategic expansion. The company successfully acquired the St. Louis investment banking firm Nolan & Associates on October 1, 2026.
Why it matters
The acquisition of Nolan & Associates strengthens the bank's ability to serve business owners and middle-market companies. This expansion complements the company's existing footprint and ongoing integration efforts.
Ending loan balances grew at an annualized rate of more than 7% during the third quarter of 2026. The firm maintains seven wealth management and seven commercial offices across multiple states outside its primary Midwest footprint.
The players
Commerce Bancshares
This regional financial institution operates a core banking footprint across five states in the Midwest.
Nolan & Associates
Based in St. Louis, this boutique investment banking firm specializes in services for middle-market companies.
FineMark Holdings
This financial organization was acquired by Commerce Bancshares to expand private banking and wealth management services.
The details
Commerce Bancshares expanded its national reach by adding new wealth management and commercial locations. These efforts include the January 2026 acquisition of FineMark Holdings, with a full systems conversion currently slated for February 2027.
Timeline
January 1, 2026: Commerce Bancshares completed the acquisition of FineMark Holdings.
Q3 2026: Ending loan balances grew at an annualized rate of over 7%.
October 1, 2026: Commerce Bank finalized the acquisition of Nolan & Associates.
February 2027: The FineMark systems conversion is scheduled to take place.
Market Landscape
The acquisition of Nolan & Associates follows the pattern set by the January 2026 acquisition of FineMark Holdings to expand the bank's specialized service offerings. This strategy positions the company to compete more effectively for middle-market business across its multi-state footprint.
Customers can expect expanded investment banking resources as the firm integrates its new St. Louis-based team. While the acquisitions do not immediately change retail banking fees, they broaden the specialized professional services available to local business clients.
The takeaway
The bank is prioritizing growth in specialized sectors like investment banking while managing large-scale system integrations. Clients of the newly acquired firms should anticipate a transition period as technology platforms are consolidated through early 2027.
What happens next
The systems conversion for FineMark Holdings is scheduled to occur in February 2027 to allow for continued team readiness and testing.
Further reading
For more on industry developments, see Corporate Finance.
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