MNMB (Merchants & Marine Bancorp) 10-Year Sortino Ratio: 0.38 (As of Sep. 07, 2026)

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.

MNMB Merchants & Marine Bancorp Inc MNMB
64 GF Score
Price $54.99
GF Value $72.46
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is Merchants & Marine Bancorp 10-Year Sortino Ratio?

Merchants & Marine Bancorp MNMB +1.83% 64 10-Year Sortino Ratio is 0.38 as of Sep. 07, 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.

The 10-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past ten years. As of today (2026-09-07), Merchants & Marine Bancorp's 10-Year Sortino Ratio is 0.38.


Merchants & Marine Bancorp  (OTCPK:MNMB) 10-Year Sortino Ratio Explanation

The 10-Year Sortino Ratio inidicates the risk-adjusted return of an investment over the past ten year. It is calculated as the annualized result of the average ten-year monthly excess returns divided by the standard deviation of negative returns in the ten-year period. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

Differnt from the Sharpe Ratio that penalizes both upside and downside volatility equally, the Sortino Ratio penalizes only those returns falling below a user-specified target or required rate of return. The expected returns here is set to the risk-free rate as well.


Merchants & Marine Bancorp 10-Year Sortino Ratio Related Terms


MNMB vs DWNX, CBWA, CBAF: 10-Year Sortino Ratio Comparison

For the Banks - Regional subindustry, Merchants & Marine Bancorp's 10-Year Sortino Ratio, along with its competitors' market caps and 10-Year Sortino Ratio 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 10-Year Sortino Ratio vs Banks Industry

For the Banks industry and Financial Services sector, Merchants & Marine Bancorp's 10-Year Sortino Ratio distribution charts can be found below:

* The bar in red indicates where Merchants & Marine Bancorp's 10-Year Sortino Ratio falls into.


MNMB
64GF Score
Merchants & Marine Bancorp Inc MNMB
10-Year Sortino Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Merchants & Marine Bancorp 10-Year Sortino Ratio Calculation

The 10-Year Sortino Ratio measures the risk-adjusted return of an investment asset or portfolio in the last ten year, focusing specifically on downside risk rather than total risk. A stock / portfolio's 10-Year Sortino Ratio can be calculated by dividing the difference between the ten-year average monthly returns of the investment and the risk-free rate, by the standard deviation of the downside risks over the past ten year.

A downside risk is a potential loss from the asset or investment. The Downside risk here is measured by the downside deviation, which is the standard deviation of negative returns.

Frequently Asked Questions Learn more about 10-Year Sortino Ratio →
What does a 10-Year Sortino Ratio of 0.38 mean?
Merchants & Marine Bancorp (MNMB) has a 10-Year Sortino Ratio of 0.38 as of Sep. 07, 2026. 10-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past ten years. View historical data for Merchants & Marine Bancorp and its competitors.
Is Merchants & Marine Bancorp's 10-Year Sortino Ratio too high?
Merchants & Marine Bancorp's current 10-Year Sortino Ratio is 0.38. 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 10-Year Sortino Ratio compare to DWNX and CBWA?
Merchants & Marine Bancorp's 10-Year Sortino Ratio of 0.38 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 10-Year Sortino Ratio for a Banks company?
A good 10-Year Sortino Ratio depends on the Banks industry context. However, 10-Year Sortino Ratio 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 10-Year Sortino Ratio mean?
A high 10-Year Sortino Ratio can signal that a stock is expensive relative to its fundamentals. 10-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past ten years. View historical data for Merchants & Marine Bancorp and its competitors. Merchants & Marine Bancorp's current 10-Year Sortino Ratio is 0.38. 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 10-Year Sortino Ratio is 0.38. 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 10-Year Sortino Ratio calculated?
10-Year Sortino Ratio is calculated from a company's financial statements. For Merchants & Marine Bancorp (MNMB), the current 10-Year Sortino Ratio is 0.38 as of Sep. 07, 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:

  • 10-Year Sortino Ratio: 0.38
  • 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

10-Year Sortino Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$54.99
Price
$72.46
GF Value