Is NB Bancorp, Inc. overvalued or undervalued?

As of 28 November 2025, the valuation grade for NB Bancorp, Inc. moved from attractive to fair, indicating a shift in its perceived value. The company appears to be fairly valued at this time, with a P/E ratio of 14, a Price to Book Value of 0.88, and an EV to EBIT of 6.22. In comparison, a peer like NB Bancorp, Inc. has a higher P/E of approximately 14.51, suggesting that while NB Bancorp is aligned with its peers, it may not offer a significant discount.
The recent stock performance shows that NB Bancorp has underperformed against the S&P 500 over the past year, with a return of -2.92% compared to the S&P 500's 14.18%. This underperformance, coupled with its fair valuation, suggests that investors may want to approach this stock cautiously.