NBBK (NB Bancorp) FCF Margin %: 41.88% (As of Jun. 2026) — 52% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

NBBK NB Bancorp Inc NBBK
35 GF Score
Price $22.84
GF Value $26.87
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is NB Bancorp FCF Margin %?

NB Bancorp NBBK +0.44% 35 FCF Margin % is 41.88% as of Jun. 2026, which is 52% above its 10-year median of 27.54. GuruFocus rates NBBK with a GF Score™ of 35/100 and a GF Value™ of $26.87 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,503 Banks companies, NB Bancorp ranks better than 55.95% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. NB Bancorp's Free Cash Flow for the three months ended in Jun. 2026 was $31.3 Mil. NB Bancorp's Revenue for the three months ended in Jun. 2026 was $74.7 Mil. Therefore, NB Bancorp's FCF Margin % for the quarter that ended in Jun. 2026 was 41.88%.

As of today, NB Bancorp's current FCF Yield % is 7.79%.

The historical rank and industry rank for NB Bancorp's FCF Margin % or its related term are showing as below:

NBBK' s FCF Margin % Range Over the Past 10 Years
Min: 23.74   Med: 27.54   Max: 48.79
Current: 30.11


During the past 5 years, the highest FCF Margin % of NB Bancorp was 48.79%. The lowest was 23.74%. And the median was 27.54%.

NBBK's FCF Margin % is ranked better than
55.95% of 1503 companies
in the Banks industry
Industry Median: 26.41 vs NBBK: 30.11


NB Bancorp FCF Margin % Related Terms


NB Bancorp FCF Margin % Historical Data

* Premium members only.

The historical data trend for NB Bancorp's FCF Margin % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

NB Bancorp FCF Margin % Chart

NB Bancorp Annual Data
Trend Dec21 Dec22 Dec23 Dec24 Dec25
FCF Margin %
48.79 27.54 34.02 23.74 26.85

NB Bancorp Quarterly Data
Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
FCF Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 50.87 46.29 -3.94 36.47 41.88

NBBK vs TRST, CPF, FSBC: FCF Margin % Comparison

For the Banks - Regional subindustry, NB Bancorp's FCF Margin %, along with its competitors' market caps and FCF Margin % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


NB Bancorp FCF Margin % vs Banks Industry

For the Banks industry and Financial Services sector, NB Bancorp's FCF Margin % distribution charts can be found below:

* The bar in red indicates where NB Bancorp's FCF Margin % falls into.


NBBK
35GF Score
NB Bancorp Inc NBBK
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

NB Bancorp FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

NB Bancorp's FCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=57.375/213.658
=26.85 %

NB Bancorp's FCF Margin for the quarter that ended in Jun. 2026 is calculated as

FCF Margin=Free Cash Flow (Q: Jun. 2026 )/Revenue (Q: Jun. 2026 )
=31.283/74.704
=41.88 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about FCF Margin % →
What does a FCF Margin % of 41.88% mean?
NB Bancorp (NBBK) has a FCF Margin % of 41.88% as of Jun. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on NB Bancorp and its competitors. This is 52% above median its historical median of 27.54. Over the past decade, NB Bancorp's FCF Margin % has ranged from 23.74 to 48.79. According to the industry distribution chart, NB Bancorp ranks #662 out of 1503 companies in the Banks industry, placing it in the top 44%.
Is NB Bancorp's FCF Margin % too high?
NB Bancorp's current FCF Margin % of 41.88% is 52% above median its 10-year median of 27.54. Over the past 10 years, this metric has ranged from a low of 23.74 to a high of 48.79. The Banks industry median FCF Margin % is 26.41. NB Bancorp's value of 41.88% is 58.6% above this industry median. Based on the distribution chart, NB Bancorp ranks #662 out of 1503 companies in the Banks industry, which is above the industry midpoint. Overall, NB Bancorp has a GF Score™ of 35/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does NB Bancorp's FCF Margin % compare to TRST and CPF?
According to the Banks industry distribution chart, NB Bancorp ranks #662 out of 1503 companies for FCF Margin %. This puts NB Bancorp in the upper half of its industry. The industry median FCF Margin % is 26.41. NB Bancorp's value of 41.88% is 58.6% above this benchmark. Historically, NB Bancorp's own FCF Margin % has ranged from 23.74 to 48.79 over the past decade. While the company's 10-year median is 27.54 vs. the industry median of 26.41, NB Bancorp has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Banks company?
The median FCF Margin % among Banks companies is 26.41, based on 1,503 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. NB Bancorp's current FCF Margin % of 41.88% is 58.6% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on NB Bancorp and its competitors. For the Banks industry, the median FCF Margin % is 26.41 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. NB Bancorp's current FCF Margin % is 41.88%, which is 52% above median its own 10-year median of 27.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is NB Bancorp stock overvalued right now?
Based on GuruFocus' analysis, NB Bancorp (NBBK) is currently considered Modestly Undervalued. The stock's GF Value™ is $26.87, compared to a current price of $22.84 — trading 15% below its estimated fair value. The current FCF Margin % is 41.88%, which is 52% above median its 10-year median of 27.54 and 58.6% above the Banks industry median of 26.41. NB Bancorp's overall GF Score™ is 35/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For NB Bancorp (NBBK), the current FCF Margin % is 41.88% as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is NB Bancorp (NBBK) Overvalued in 2026?

Based on GuruFocus' analysis, NB Bancorp stock appears to be undervalued. The current stock price of $22.84 is trading 15% below its estimated GF Value™ of $26.87. GuruFocus considers NB Bancorp to be Modestly Undervalued.

Key valuation signals for NBBK:

  • FCF Margin %: 41.88% (52% above median its 10-year median of 27.54)
  • GF Value™: $26.87 vs. price of $22.84 (15% below fair value)
  • GF Score™: 35/100 with 3 warning signs
  • Industry Position: 58.6% above the Banks median (#662 of 1503)

No single metric tells the full story. See the NBBK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


NB Bancorp Business Description

Address 1063 Great Plain Avenue, Needham, MA, USA, 02492
NB Bancorp Inc operates as the holding company of Needham Bank. The group's business consists of taking deposits from the general public and investing those deposits, together with funds generated from operations, in commercial real estate and multifamily loans, one- to four-family residential real estate loans, construction and land development loans, commercial and industrial loans, consumer loans, and other related services.
35GF Score

Get the complete analysis for NBBK

FCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$22.84
Price
$26.87
GF Value