NB Bancorp, Inc. (NBBK) stock
Close on Nov 11, 2026Market cap $969.70MP/E 13.3Yield –
NB Bancorp, Inc. grew revenue 43.2% to $283.45M over the twelve months to Sep 30, 2026. Free cash flow was $121.31M, up 50.5% from a year earlier. At the latest close the market valued the company at $969.70M, 13.3 times its earnings.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $969.70M
- P/E ratio
- 13.3
- Price to sales
- 3.42
- Price to book
- 1.13
- Dividend yield
- –
- Free cash flow yield
- 12.51%
Fundamentals
- Revenue
- $283.45M
- Net income
- $66.95M
- EPS, diluted
- $1.67
- Free cash flow
- $121.31M
- Book value per share
- $21.52
- Diluted shares
- 40M
Trading
- Next earnings
- Jan 21, 2027 (estimated, after the close)
- Previous close
- $22.19
- Open
- $22.25
- Day's range
- $22.00 – $22.25
- Volume
- 120,108
- Average volume (20 days)
- 291,772
- Index membership
- Russell 2000 (since Sep 2024), Russell 3000 (since Aug 2024)
- Beta (5 years)
- 0.82
- 52-week range
- $18.11 – $23.47
- RSI (14 days)
- 46.3
- Volatility (1 year)
- 25.5%
- Relative volume
- 0.40×
- WACC
- 9.0%
On 2 of our idea lists: Breakout quarter, Strong quarter, insiders buying
Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2024, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.
| Period | NBBK | S&P 500 | Difference | NBBK per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +0.4% | -2.4% | +2.8 pts | ||
| 3 months | -2.4% | -1.2% | −1.3 pts | ||
| Year to date | +13.1% | +12.3% | +0.8 pts | ||
| 1 year | +21.1% | +12.4% | +8.6 pts |
Five years at a glance
Fiscal years 2021 to 2025 and trailing twelve months, USD
Revenue
Net income
EPS, diluted
Free cash flow
Press releases
Releases NB Bancorp filed with the SEC as exhibits to Form 8-K or 6-K
- Update
- Update
- Results
- Results
- Results
- Results
About NB Bancorp
Savings Institutions, Not Federally Chartered
NB Bancorp, Inc. operates as the bank holding company for Needham Bank, providing consumer and commercial banking products and services. The institution gathers core deposits through products such as checking, savings, money market, certificates of deposit, and individual retirement accounts. Its lending activities include commercial real estate and multifamily financing, one-to-four-family residential mortgages, construction and land development loans, commercial and industrial lending, mortgage warehouse facilities, and consumer loans. Commercial lending operations feature divisions serving small businesses, middle-market enterprises, and structured finance clients across industries such as manufacturing, commercial finance, renewable energy, and cannabis.
Company profile, executives and historyNB Bancorp stock: common questions
What is NB Bancorp's stock price?
NBBK closed at $22.13 on Nov 11, 2026, down 0.27% on the day. Over the past 52 weeks it traded between $18.11 and $23.47.
What is NB Bancorp's market cap?
NB Bancorp was worth $969.70M at the close on Nov 11, 2026: the share price times the diluted shares outstanding.
What is NBBK's P/E ratio?
NBBK trades at 13.3 times earnings, based on diluted earnings per share of $1.67 over the twelve months to Sep 30, 2026.
How much revenue does NB Bancorp make?
NB Bancorp reported revenue of $283.45M for the twelve months to Sep 30, 2026, up 43.2% from a year earlier.
Does NB Bancorp pay a dividend?
No. NB Bancorp has not paid a cash dividend over the last twelve months.
When does NB Bancorp report earnings next?
NB Bancorp is expected to report Q4 FY2026 results on Jan 21, 2027, after the close. The date is estimated from its past reporting pattern until the company confirms it.
How has NBBK stock performed over the past year?
Including dividends, NBBK returned +21.1% over the past year, against +12.4% for the S&P 500.
How many NBBK shares are sold short?
2M shares were sold short at the latest FINRA report, 3.61% of the float, or 4.4 days of average trading volume.
Who are NB Bancorp's competitors?
Companies most similar to NB Bancorp by business, industry and size include AVBC, SMBC, NECB, TCBX, EBC.
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