Is Bank of Marin Bancorp overvalued or undervalued?

As of 17 October 2025, the valuation grade for Bank of Marin Bancorp has moved from expensive to fair. The company appears to be fairly valued based on its current metrics. Key ratios include a Price to Book Value of 0.82, an EV to Sales ratio of 0.62, and an EV to Capital Employed ratio of 0.54, which suggest that the company is trading at a reasonable valuation relative to its assets and sales.
In comparison to peers, Five Star Bancorp has a P/E ratio of 13.58, while Mid Penn Bancorp, Inc. shows a P/E of 12.76, indicating that Bank of Marin Bancorp's valuation is less favorable compared to these competitors. Notably, the company's stock has underperformed against the S&P 500 across multiple periods, with a year-to-date return of -4.46% compared to the S&P 500's 13.30%, highlighting the challenges faced by the company in the current market environment.