MNMB (Merchants & Marine Bancorp) Net Interest Margin (Bank Only) %: 5.45% (As of Jun. 2026)

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MNMB Merchants & Marine Bancorp Inc MNMB
64 GF Score
Price $54.99
GF Value $72.46
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Merchants & Marine Bancorp Net Interest Margin (Bank Only) %?

Merchants & Marine Bancorp MNMB +1.83% 64 Net Interest Margin (Bank Only) % is 5.45% as of Jun. 2026. GuruFocus rates MNMB with a GF Score™ of 64/100 and a GF Value™ of $72.46 (Modestly Undervalued). The stock has 4 warning signs investors should review.

Net Interest Margin (Bank Only) % is a measure of the difference between the interest income generated by banks or other financial institutions and the amount of interest paid out to their lenders (for example, deposits), relative to the amount of their interest-earning assets. It is usually calculated as a percentage of what the financial institution earns on loans in a time period and other assets minus the interest paid on borrowed funds divided by the average amount of the assets on which it earned income in that time period (the average earning assets).

GuruFocus calculates Net Interest Margin (Bank Only) % as Net Interest Income (for Banks) divided by its average earning assets. Merchants & Marine Bancorp's annualized Net Interest Income (for Banks) for the quarter that ended in Jun. 2026 was $51.42 Mil. Merchants & Marine Bancorp's average earning assets for the quarter that ended in Jun. 2026 was $942.64 Mil. Therefore, Merchants & Marine Bancorp's annualized Net Interest Margin (Bank Only) % for the quarter that ended in Jun. 2026 was 5.45%.


Merchants & Marine Bancorp  (OTCPK:MNMB) Net Interest Margin (Bank Only) % Explanation

The negative value of Net Interest Margin (Bank Only) % mean the firm pays more interest for its debt than the interest revenue generated from its investment.


Merchants & Marine Bancorp Net Interest Margin (Bank Only) % Related Terms


Merchants & Marine Bancorp Net Interest Margin (Bank Only) % Historical Data

* Premium members only.

The historical data trend for Merchants & Marine Bancorp's Net Interest Margin (Bank Only) % 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.

Merchants & Marine Bancorp Net Interest Margin (Bank Only) % Chart

Merchants & Marine Bancorp Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Net Interest Margin (Bank Only) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.33 4.23 5.02 6.13 5.46

Merchants & Marine Bancorp Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Net Interest Margin (Bank Only) % 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 Premium Member Only 5.40 4.79 4.76 4.56 5.45

MNMB vs DWNX, CBWA, CBAF: Net Interest Margin (Bank Only) % Comparison

For the Banks - Regional subindustry, Merchants & Marine Bancorp's Net Interest Margin (Bank Only) %, along with its competitors' market caps and Net Interest Margin (Bank Only) % 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.


Merchants & Marine Bancorp Net Interest Margin (Bank Only) % vs Banks Industry

For the Banks industry and Financial Services sector, Merchants & Marine Bancorp's Net Interest Margin (Bank Only) % distribution charts can be found below:

* The bar in red indicates where Merchants & Marine Bancorp's Net Interest Margin (Bank Only) % falls into.


MNMB
64GF Score
Merchants & Marine Bancorp Inc MNMB
Net Interest Margin (Bank Only) % is just one metric. See GF Score™, valuation, warning signs, and more.
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Merchants & Marine Bancorp Net Interest Margin (Bank Only) % Calculation

Net Interest Margin (Bank Only) % (NIM) is a measure of the difference between the interest income generated by banks or other financial institutions and the amount of interest paid out to their lenders (for example, deposits), relative to the amount of their interest-earning assets. It is usually calculated as a percentage of what the financial institution earns on loans in a time period and other assets minus the interest paid on borrowed funds divided by the average amount of the assets on which it earned income in that time period (the average earning assets).

Merchants & Marine Bancorp's annualized Net Interest Margin (Bank Only) % for the fiscal year that ended in Dec. 2025 is calculated as

Net Interest Margin (Bank Only) %(A: Dec. 2025 )
=(Interest Income + Interest Expense)/Average Earning Assets
=Net Interest Income (for Banks)/( (Earning Assets (A: Dec. 2024 ) + Earning Assets (A: Dec. 2025 ))/ count )
=37.494/( (600.194 + 773.991)/ 2 )
=37.494/687.0925
=5.46 %

where

Earning Assets(A: Dec. 2024 )
=Money Market Investments + Net Loan + Securities & Investments
=0.057000000000002 + 464.361 + 135.776
=600.194

Earning Assets(A: Dec. 2025 )
=Money Market Investments + Net Loan + Securities & Investments
=0.015999999999991 + 445.537 + 328.438
=773.991

Merchants & Marine Bancorp's annualized Net Interest Margin (Bank Only) % for the quarter that ended in Jun. 2026 is calculated as

Net Interest Margin (Bank Only) %(Q: Jun. 2026 )
=(Interest Income + Interest Expense)/Average Earning Assets
=Net Interest Income (for Banks)/( (Earning Assets (Q: Mar. 2026 ) + Earning Assets (Q: Jun. 2026 ))/ count )
=51.416/( (768.788 + 1116.497)/ 2 )
=51.416/942.6425
=5.45 %

where

Earning Assets(Q: Mar. 2026 )
=Money Market Investments + Net Loan + Securities & Investments
=0 + 442.757 + 326.031
=768.788

Earning Assets(Q: Jun. 2026 )
=Money Market Investments + Net Loan + Securities & Investments
=0.033000000000001 + 677.133 + 439.331
=1116.497

* 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.

Note: Interest Expense is the negative value.

In the calculation of annual Net Interest Margin (Bank Only) %, the Net Interest Income (for Banks) of the last fiscal year and the average earning assets over the fiscal year are used. In calculating the quarterly data, the Net Interest Income (for Banks) data used here is four times the quarterly (Jun. 2026) net interest income data. Net Interest Margin (Bank Only) % is displayed in the 30-year financial page for Banks.

What does a Net Interest Margin (Bank Only) % of 5.45% mean?
Merchants & Marine Bancorp (MNMB) has a Net Interest Margin (Bank Only) % of 5.45% as of Jun. 2026. Net interest margin is the ratio of a bank's net interest income to its average two-period earning assets. View historical data on Merchants & Marine Bancorp and its competitors.
Is Merchants & Marine Bancorp's Net Interest Margin (Bank Only) % too high?
Merchants & Marine Bancorp's current Net Interest Margin (Bank Only) % is 5.45%. Overall, Merchants & Marine Bancorp has a GF Score™ of 64/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Merchants & Marine Bancorp's Net Interest Margin (Bank Only) % compare to DWNX and CBWA?
Merchants & Marine Bancorp's Net Interest Margin (Bank Only) % of 5.45% can be compared against companies in the Banks industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Net Interest Margin (Bank Only) % for a Banks company?
A good Net Interest Margin (Bank Only) % depends on the Banks industry context. However, Net Interest Margin (Bank Only) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Net Interest Margin (Bank Only) % mean?
A high Net Interest Margin (Bank Only) % can signal that a stock is expensive relative to its fundamentals. Net interest margin is the ratio of a bank's net interest income to its average two-period earning assets. View historical data on Merchants & Marine Bancorp and its competitors. Merchants & Marine Bancorp's current Net Interest Margin (Bank Only) % is 5.45%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Merchants & Marine Bancorp stock overvalued right now?
Based on GuruFocus' analysis, Merchants & Marine Bancorp (MNMB) is currently considered Modestly Undervalued. The stock's GF Value™ is $72.46, compared to a current price of $54.99 — trading 24.1% below its estimated fair value. The current Net Interest Margin (Bank Only) % is 5.45%. Merchants & Marine Bancorp's overall GF Score™ is 64/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Interest Margin (Bank Only) % calculated?
Net Interest Margin (Bank Only) % is calculated from a company's financial statements. For Merchants & Marine Bancorp (MNMB), the current Net Interest Margin (Bank Only) % is 5.45% 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 Merchants & Marine Bancorp (MNMB) Overvalued in 2026?

Based on GuruFocus' analysis, Merchants & Marine Bancorp stock appears to be undervalued. The current stock price of $54.99 is trading 24.1% below its estimated GF Value™ of $72.46. GuruFocus considers Merchants & Marine Bancorp to be Modestly Undervalued.

Key valuation signals for MNMB:

  • Net Interest Margin (Bank Only) %: 5.45%
  • GF Value™: $72.46 vs. price of $54.99 (24.1% below fair value)
  • GF Score™: 64/100 with 4 warning signs

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


Merchants & Marine Bancorp Business Description

Address 3118 Pascagoula Street, Pascagoula, MS, USA, 39567
Merchants & Marine Bancorp Inc provides full-service financial banking services to individuals, partnerships, corporations, and governmental agencies. Its deposit products include checking accounts, savings accounts, individual retirement accounts, and certificates of deposit. The bank generates commercial, mortgage, and consumer loans and receives deposits from customers located in Jackson and George Counties in Mississippi and Baldwin County in Alabama. The bank provides services such as Personal Banking, Mortgage Loans, Digital Banking, Credit Cards and Others.
64GF Score

Get the complete analysis for MNMB

Net Interest Margin (Bank Only) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$54.99
Price
$72.46
GF Value