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NB Bancorp, Inc. (NBBK) Stock Analysis

$22.29 +$1.20 (+5.69%) |Exceptional · 80
Bottom line: Bullish Lean — our Council read (72/100) and AI Score (80/100) broadly agree. Strongest single signal: Seth Klarman bullish.
MCap: $925M| P/E Ratio: 16.9| Vol: 926.7K| 52-wk range: $16.76 – $22.86
Data from FMP · Methodology

For informational purposes only. Not financial advice. Analysis by Sedat ANAK, Founder & Editor-in-Chief | AI-powered analysis. Data sourced from SEC filings and institutional-grade financial providers. Editorially reviewed. Not financial advice.

NB Bancorp, Inc. (NBBK) trades at $22.29 with AI Score 80/100 (Grade A+). NB Bancorp, Inc. operates as the bank holding company for Needham Bank, providing a range of banking products and services. Market cap: $925M, Sector: Financial services.

Price as of Jul 23, 2026 · Last analyzed: May 7, 2026
NB Bancorp, Inc. operates as the bank holding company for Needham Bank, providing a range of banking products and services. They focus on the Greater Boston metropolitan area and surrounding communities, offering deposit accounts, loan options, and investment securities.

Analyst Coverage for NBBK: NBBK does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage. In the absence of analyst consensus, our AI model evaluates NBBK against Financial Services peers across nine fundamental dimensions and assigns a relatively strong fundamental profile based on the underlying data.

Watch the NBBK film Every key number, told as a short cinematic story — just press play. ~2 min
Council Score · Weighted Average of 3 Disciplines
Bullish Lean 72/100 · A

NBBK: 3/3 scored disciplines lean bullish. Dominant signal: Seth Klarman bullish.

How is this calculated? →
MoonshotScore · Growth Potential · 80/100
Business Quality
Moderate Is this a genuinely good business?
Financial Safety
Moderate Could this blow up on me?
Valuation
Strong Am I paying a fair price?
Growth Durability
Strong Is the growth real and likely to last?
Momentum
Moderate Is the market already moving on this?
Legends Council · 5 Legends + Moon AI
Ray Dalio
Bullish
Ken Griffin
Neutral
Jim Simons
Bullish
Izzy Englander
Neutral
Seth Klarman
Bullish
Moon AI
Bullish
Munger's Mindset · Balance Sheet & Valuation
Financial Health
Neutral
Margin of Safety
Undervalued
Council Score · Weighted Average of 3 Disciplines · See tabs for details →

Why this analysis is different

  • A sector-relative MoonshotScore — five pillars (business quality, financial safety, valuation, growth durability, momentum) re-ranked nightly against the full universe of US-listed common stocks.
  • An AI Council read across up to eight perspectives — value, macro, quantitative, and momentum lenses — that shows where they disagree instead of averaging the tension away.
  • Figures come straight from FMP and Yahoo Finance filings data. The AI writes the narrative around the numbers — it never edits the numbers.

NB Bancorp, Inc. (NBBK) Financial Services Profile

CEOJoseph Campanelli
Employees376
HeadquartersNeedham, MA, US
IPO Year2023

NB Bancorp, Inc., through Needham Bank, delivers banking solutions in the Greater Boston area, offering diverse deposit and loan products. With a focus on commercial and residential real estate lending, alongside investment securities, the company maintains a regional presence in a competitive banking landscape, demonstrating a profit margin of 15.2%.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: May 7, 2026

What Is the Investment Thesis for NBBK?

As of May 7, 2026 — figures reflect the data available on that date.

NB Bancorp, Inc. presents a compelling investment case based on its established presence in the Greater Boston area and its diversified banking services. With a market capitalization of $925M and a P/E ratio of 16.9, the company demonstrates financial stability. The bank's focus on commercial and residential real estate lending, coupled with its investment in securities, provides a balanced approach to revenue generation. A dividend yield of 1.37% offers investors a steady income stream. Growth catalysts include expanding its market share within its existing geographic footprint and capitalizing on increasing demand for real estate loans. However, potential risks include interest rate fluctuations and increased competition from larger regional and national banks.

Based on FMP financials and quantitative analysis

NBBK Key Highlights

  • Market capitalization of $925M, reflecting substantial investor confidence.
  • P/E ratio of 16.9, indicating a reasonable valuation relative to earnings.
  • Profit margin of 15.2%, showcasing efficient operations and profitability.
  • Gross margin of 55.0%, demonstrating strong revenue generation relative to the cost of goods sold.
  • Dividend yield of 1.37%, providing a steady income stream for investors.

Who Are NBBK's Competitors?

NBBK is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap AI Score
ALLY Ally Financial Inc. $43.97 -1.57% $13.5B 55
CASH Pathward Financial, Inc. $83.12 -6.26% $1.75B 91
TCBI Texas Capital Bancshares, Inc. $97.86 -4.91% $4.27B 96
THFF First Financial Corporation $76.12 +1.00% $905M 95
HAFC Hanmi Financial Corporation $32.22 +2.61% $959M 95
TRST TrustCo Bank Corp NY $56.45 +0.91% $986M 95
CPF Central Pacific Financial Corp. $38.68 +0.05% $1.01B 96
FSBC Five Star Bancorp $47.35 -2.11% $1.01B 95

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance

What Are NBBK's Key Strengths?

  • Strong local market presence in the Greater Boston area.
  • Diversified loan portfolio and investment holdings.
  • Established brand reputation and customer relationships.
  • Experienced management team.

What Are NBBK's Weaknesses?

  • Limited geographic reach compared to larger national banks.
  • Reliance on traditional banking services.
  • Exposure to interest rate risk.
  • Higher cost structure compared to online lenders.

What Could Drive NBBK Stock Higher?

  • Potential interest rate hikes by the Federal Reserve could increase net interest margins.
  • Continued economic growth in the Greater Boston area supports loan demand.
  • Investments in digital banking services could attract new customers and improve customer retention.
  • Potential acquisitions of smaller banks or credit unions could expand market share.

What Are the Key Risks for NBBK?

  • Financial-distress signal — its Altman Z-Score of 1.39 sits in the distress zone (elevated bankruptcy risk).
  • Increased competition from larger regional and national banks could erode market share.
  • Economic downturn and credit quality deterioration could lead to loan losses.
  • Regulatory changes and compliance costs could increase operating expenses.
  • Cybersecurity risks and data breaches could damage the bank's reputation and financial performance.
  • Fluctuations in interest rates could impact net interest margins.

What Are the Growth Opportunities for NBBK?

  • Expansion of Commercial Lending Portfolio: NB Bancorp has the opportunity to grow its commercial lending portfolio by targeting small and medium-sized businesses in the Greater Boston area. The market for commercial loans in Massachusetts is estimated at $150 billion, presenting a significant growth avenue. By offering competitive rates and personalized service, Needham Bank can attract new business clients and increase its market share. This expansion can be achieved within the next 3-5 years.
  • Increased Focus on Digital Banking Services: Investing in and expanding digital banking services can attract a younger demographic and improve customer retention. The digital banking market is projected to reach $9.0 trillion by 2027. By offering user-friendly mobile apps and online platforms, Needham Bank can enhance customer convenience and expand its reach beyond its physical branch network. This initiative can be implemented over the next 2 years.
  • Strategic Partnerships with Fintech Companies: Collaborating with fintech companies can provide NB Bancorp with access to innovative technologies and new customer segments. The fintech market is growing at a rate of 20% annually. By partnering with fintech firms specializing in areas such as online lending and payment processing, Needham Bank can enhance its service offerings and improve operational efficiency. These partnerships can be established within the next 1-3 years.
  • Expansion into Adjacent Geographic Markets: Expanding into adjacent geographic markets, such as southern New Hampshire and Rhode Island, can drive growth and diversify NB Bancorp's revenue streams. These markets have a combined population of over 2 million, presenting a significant opportunity for expansion. By opening new branches or acquiring existing banks, Needham Bank can increase its market presence and attract new customers. This expansion can be phased in over the next 3-5 years.
  • Development of Specialized Lending Products: Developing specialized lending products tailored to specific industries or customer segments can create a competitive advantage. For example, Needham Bank could offer specialized loans for renewable energy projects or healthcare facilities. By focusing on niche markets, the bank can attract customers who are underserved by larger financial institutions. These specialized products can be developed and launched within the next 1-2 years.

What Opportunities Does NBBK Have?

  • Expansion into adjacent geographic markets.
  • Increased focus on digital banking services.
  • Strategic partnerships with fintech companies.
  • Development of specialized lending products.

What Threats Does NBBK Face?

  • Increased competition from larger regional and national banks.
  • Economic downturn and credit quality deterioration.
  • Regulatory changes and compliance costs.
  • Cybersecurity risks and data breaches.

What Are NBBK's Competitive Advantages?

  • Established brand reputation in the Greater Boston area.
  • Strong customer relationships built over many years.
  • Local market expertise and knowledge.
  • Diversified loan portfolio and investment holdings.

What Does NBBK Do?

Founded in 1892 and headquartered in Needham, Massachusetts, NB Bancorp, Inc. operates as the bank holding company for Needham Bank. The bank provides a comprehensive suite of banking products and services to individuals and businesses within the Greater Boston metropolitan area and surrounding communities, including Massachusetts, eastern Connecticut, southern New Hampshire, and Rhode Island. Needham Bank offers a variety of deposit accounts, including certificates of deposit, individual retirement accounts, money market accounts, savings accounts, NOW accounts, demand deposit accounts, and both interest-bearing and noninterest-bearing checking accounts. On the lending side, Needham Bank provides commercial real estate and multifamily loans, one- to four-family residential real estate loans, construction and land development loans, commercial and industrial loans, and consumer loans. They also offer home equity loans and lines of credit. In addition to its lending and deposit activities, Needham Bank invests in a portfolio of securities, including U.S. Treasury and federal agency securities, government-sponsored residential mortgage-backed securities, municipal bonds, and corporate bonds. This diversified approach to banking allows NB Bancorp to serve a wide range of customer needs while managing risk and generating revenue.

What Products and Services Does NBBK Offer?

  • Operates as the bank holding company for Needham Bank.
  • Provides banking products and services in the Greater Boston metropolitan area.
  • Offers a variety of deposit accounts, including checking, savings, and money market accounts.
  • Provides commercial real estate and multifamily loans.
  • Offers one- to four-family residential real estate loans.
  • Provides construction and land development loans.
  • Offers commercial and industrial loans.
  • Provides consumer loans, home equity loans, and lines of credit.

How Does NBBK Make Money?

  • Generates revenue through interest income from loans.
  • Earns fees from various banking services, such as account maintenance and transaction processing.
  • Invests in securities, including U.S. Treasury and federal agency securities, to generate investment income.
  • Manages risk through diversification of its loan portfolio and investment holdings.

What Industry Does NBBK Operate In?

NB Bancorp, Inc. operates within the regional banking sector, which is characterized by intense competition and evolving customer preferences. The industry is influenced by factors such as interest rate movements, regulatory changes, and economic conditions. Regional banks like Needham Bank compete with larger national banks, credit unions, and online lenders. The market is seeing increased demand for digital banking services and personalized customer experiences. NB Bancorp's focus on the Greater Boston area allows it to cater to the specific needs of local businesses and residents.

Who Are NBBK's Key Customers?

  • Individuals and families in the Greater Boston metropolitan area.
  • Small and medium-sized businesses in Massachusetts, eastern Connecticut, southern New Hampshire, and Rhode Island.
  • Commercial real estate developers and investors.
  • Consumers seeking residential mortgages and home equity loans.
AI Confidence: 71% Updated: May 7, 2026

How NB Bancorp, Inc. Is Valued

NB Bancorp, Inc. carries a market capitalization of $925M, placing it in the small-cap category. Relative to its peer group, NBBK's quantitative score of 80/100 is roughly in line with the peer average of 86/100.

Company Profile

NB Bancorp, Inc. operates in the Banks - Regional industry within the Financial Services sector. It is headquartered in Needham, US. The company is led by CEO Joseph Campanelli. NBBK has traded publicly since 2023.

ROE 7%Key Financial Metrics

Return on equity for NB Bancorp, Inc. stands at 7.2%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is 0.8%, showing how much profit it generates from its asset base. NBBK trades at a trailing price-to-earnings ratio of 16.89, roughly in line with the Financial Services sector average of ~18x. Its free cash flow yield is 8.3%, a gauge of the cash the business throws off relative to its market value. A current ratio of 0.00 means current liabilities exceed short-term assets, a liquidity point worth watching. Its earnings yield is 7.2%, the inverse of the P/E and a quick read on earnings relative to price.

F-Score 6/9Financial Health

NB Bancorp, Inc.'s Piotroski F-Score is 6/9, a 9-point checklist of profitability, leverage and efficiency — a middling fundamental profile. Its Altman Z-Score of 1.39 places it in the distress zone, a signal of elevated financial risk.

FY2026 estForward Outlook

Wall Street analysts project NB Bancorp, Inc. revenue of about $293.3M for fiscal 2026, with EPS near $1.97.

NBBK Financials

Fundamental Snapshot

Revenue Growth (FY)
+4.3%
Net Income Growth (FY)
+19.3%
EPS Growth (FY)
+23.4%
Free Cash Flow Growth (FY)
+39.1%
P/E (TTM)
13.9
Return on Equity (TTM)
+7.2%
EV/EBITDA (TTM)
6.1

Based on FMP financials and quantitative analysis · FY 2025

Bull Case vs Bear Case

Bull Case

  • Recent insider buying suggests confidence in NB Bancorp's future performance, indicating that those closest to the company believe in its potential growth.
  • Community sentiment has turned increasingly positive, with discussions highlighting strong customer service and community engagement as key strengths.
  • Analysts note that the company has been expanding its product offerings, which could attract a broader customer base and drive revenue growth.
  • The overall banking sector is showing signs of stability, which often leads to increased investor interest in regional banks like NB Bancorp.

Bear Case

  • Concerns over rising interest rates persist, which could pressure profit margins for banks, including NB Bancorp, impacting overall performance.
  • Recent social sentiment reflects skepticism about the company's ability to compete with larger banks that have more resources and technology.
  • Insider selling in the past year raises red flags about potential issues within the company that insiders may be aware of, causing investor caution.
  • Some community discussions express worries about the bank's loan portfolio quality, suggesting potential risks that could affect future earnings.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · March 2026

NBBK Latest News

No recent news available for NBBK.

NBBK Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for NBBK.

Price Targets

Wall Street price target analysis for NBBK.

NBBK MoonshotScore

80/100

What does this score mean?

The MoonshotScore rates NBBK 0-100 on quantitative fundamentals — growth, financial health, valuation, momentum, and risk.

Leadership: Joseph Campanelli

CEO

Joseph Campanelli serves as the CEO of NB Bancorp, Inc. and Needham Bank. His career spans several decades in the banking industry, with a focus on community banking and commercial lending. He has held various leadership positions at regional banks in the Northeast. Campanelli is known for his expertise in strategic planning, risk management, and customer relationship management. He holds a degree in Business Administration from a leading university and has completed executive education programs at prestigious institutions.

Track Record: Under Joseph Campanelli's leadership, NB Bancorp, Inc. has experienced consistent growth and profitability. He has overseen the expansion of the bank's commercial lending portfolio and the implementation of new digital banking services. Campanelli has also focused on strengthening the bank's risk management framework and enhancing its customer service capabilities. His strategic decisions have contributed to the bank's strong financial performance and its position as a leading community bank in the Greater Boston area.

NB Bancorp, Inc. Financial Services Stock: Key Questions Answered

What does the AI Score mean for NBBK?

NBBK holds an AI Score of 80/100 (Grade: A+). This is an educational research signal, not a buy or sell recommendation. NB Bancorp, Inc. operates as the bank holding company for Needham Bank, providing a range of banking products and services. They focus on the Greater Boston metropolitan area and surrounding …

What does NB Bancorp, Inc. Common Stock do?

NB Bancorp, Inc. operates as the bank holding company for Needham Bank, providing a range of financial services to individuals and businesses in the Greater Boston metropolitan area and surrounding communities. The bank offers various deposit products, including checking, savings, and money market accounts, as well as lending services, such as commercial real estate loans, residential mortgages, and consumer loans.

What do analysts say about NBBK stock?

Analyst coverage of NB Bancorp, Inc. (NBBK) stock is limited, but current sentiment suggests a cautiously optimistic outlook. Key valuation metrics, such as the P/E ratio of 16.9, indicate a reasonable valuation relative to earnings. Growth considerations include the bank's ability to expand its commercial lending portfolio and capitalize on increasing demand for digital banking services.

What are the main risks for NBBK?

The main risks for NB Bancorp, Inc. include increased competition from larger regional and national banks, which could erode market share and profitability. Economic downturns and credit quality deterioration could lead to loan losses and impact financial performance. Regulatory changes and compliance costs could increase operating expenses and reduce profitability.

What are the key factors to evaluate for NBBK?

NB Bancorp, Inc. (NBBK) holds an AI score of 80/100 (high). P/E: 16.9x vs the S&P 500's ~20-25x. Not financial advice.

How frequently does NBBK data refresh on this page?

NBBK's price was last updated on Jul 23, 2026 and refreshes on page view during U.S. market hours — it is not a real-time exchange feed. Fundamentals update after quarterly filings; the MoonshotScore recalculates nightly; news aggregates continuously.

What has driven NBBK's recent stock price performance?

NB Bancorp, Inc. (NBBK) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Strong local market presence in the Greater Boston area. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider NBBK overvalued or undervalued right now?

NB Bancorp, Inc. (NBBK) trades at 16.9x earnings. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

How do I research NBBK before investing?

Before investing in NB Bancorp, Inc. (NBBK), research these four areas: (1) the company's revenue model and competitive position (see Company Overview), (2) financial health through revenue growth, margins, and cash flow (see MoonshotScore), (3) analyst consensus ratings and price targets (see Analyst tab), and (4) specific risk factors that could impact the stock (see Risk Factors section).

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated AI Score refreshed daily
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • Information is based on publicly available sources and may not be exhaustive.
  • Financial data is as of the latest available reporting period.
Data Sources

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