MNSB (MainStreet Bancshares) Peter Lynch Fair Value: $9.99 (As of Jul. 31, 2026) — 1565% Above Median

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Director of Data and Quant Analytics at GuruFocus
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MNSB MainStreet Bancshares Inc MNSB
67 GF Score
Price $23.10
GF Value $19.58
Valuation Modestly Overvalued
! 6 Warning Signs
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What is MainStreet Bancshares Peter Lynch Fair Value?

MainStreet Bancshares MNSB +0.63% 67 Peter Lynch Fair Value is $9.99 as of Jul. 31, 2026, which is 1565% above its 10-year median of 0.60. GuruFocus rates MNSB with a GF Score™ of 67/100 and a GF Value™ of $19.58 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 874 Banks companies, MainStreet Bancshares ranks worse than 84.44% on this metric.

Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year. Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years. If 5-Year Growth Rate is greater than 25% a year, we use 25. If 5-Year Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.

Here, as of today, MainStreet Bancshares's PEG is 1. MainStreet Bancshares's 5-Year TTM Book Value Growth Rate is 5.77. MainStreet Bancshares's EPS without NRI for the trailing twelve months (TTM) ended in Mar. 2026 was $1.73. Therefore, the Peter Lynch Fair Value for today is $9.99.

As of today (2026-07-31), MainStreet Bancshares's share price is $23.10. MainStreet Bancshares's Peter Lynch fair value is $9.99. Therefore, MainStreet Bancshares's Price to Peter Lynch Fair Value Ratio for today is 2.31.


The historical rank and industry rank for MainStreet Bancshares's Peter Lynch Fair Value or its related term are showing as below:

MNSB' s Price-to-Peter-Lynch-Fair-Value Range Over the Past 10 Years
Min: 0.44   Med: 0.6   Max: 5.29
Current: 2.16


During the past 13 years, the highest Price to Peter Lynch Fair Value Ratio of MainStreet Bancshares was 5.29. The lowest was 0.44. And the median was 0.60.


MNSB's Price-to-Peter-Lynch-Fair-Value is ranked worse than
84.44% of 874 companies
in the Banks industry
Industry Median: 1.11 vs MNSB: 2.16

Note: Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart.


MainStreet Bancshares  (NAS:MNSB) Peter Lynch Fair Value Explanation

Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year.

Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years.

Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart. In Peter Lynch chart, a fixed P/E ratio of 15 is used to draw the Earnings Line. Therefore the value reached has a P/E ratio of 15. But in Peter Lynch Fair Value calculation, P/E equals to the growth rate of Book Value per share over the past 5 years, which is 5.77 instead of 15 in this case.

MainStreet Bancshares's Price to Peter Lynch Fair Value Ratio for today is calculated as

Price to Peter Lynch Fair Value=Share Price/Peter Lynch Fair Value
=23.10/9.99
=2.31

* 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.


MainStreet Bancshares Peter Lynch Fair Value Related Terms


MainStreet Bancshares Peter Lynch Fair Value Historical Data

* Premium members only.

The historical data trend for MainStreet Bancshares's Peter Lynch Fair Value 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.

MainStreet Bancshares Peter Lynch Fair Value Chart

MainStreet Bancshares Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Peter Lynch Fair Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only 44.96 44.01 37.75 4.62 10.21

MainStreet Bancshares Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Peter Lynch Fair Value 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 4.77 7.80 10.21 10.71 0.00

MNSB vs EMYB, NODB, PRMY: Peter Lynch Fair Value Comparison

For the Banks - Regional subindustry, MainStreet Bancshares's Price-to-Peter-Lynch-Fair-Value, along with its competitors' market caps and Price-to-Peter-Lynch-Fair-Value 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.


MainStreet Bancshares Price-to-Peter-Lynch-Fair-Value vs Banks Industry

For the Banks industry and Financial Services sector, MainStreet Bancshares's Price-to-Peter-Lynch-Fair-Value distribution charts can be found below:

* The bar in red indicates where MainStreet Bancshares's Price-to-Peter-Lynch-Fair-Value falls into.


MNSB
67GF Score
MainStreet Bancshares Inc MNSB
Peter Lynch Fair Value is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

MainStreet Bancshares Peter Lynch Fair Value Calculation

MainStreet Bancshares's Peter Lynch Fair Value for today is calculated as

Peter Lynch Fair Value=PEG Ratio*5-Year TTM Book Value Growth Rate***EPS without NRI (TTM)
=1* 5.77 *1.731
=9.99

MainStreet Bancshares's EPS without NRI for the trailing twelve months (TTM) uses the latest annual data, which was $1.73.

* Note that for companies that do not have enough quarterly data to calculate the 5-Year TTM EBITDA Growth Rate, we use the annual data for the calculation.


* 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.

** Please be aware that the 5-Year TTM Book Value Growth Rate is calculated based on TTM data over the last 5 years. For quarterly reported companies, the TTM data is the latest quarter data. For companies that report semi-annually, annually, or do not have enough quarterly data, GuruFocus uses the annual data as the TTM data.

If 5-Year Earnings Growth Rate is greater than 25% a year, we use 25.

If 5-Year Earnings Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.

Please note that we use the 5-year average growth rate of EBITDA per share as the growth rate for non-bank companies, as EBITDA growth is subject to less manipulations than net earnings per share. For banks, we use the 5-year average growth rate of Book Value per share as the growth rate. The reason is that EBITDA is not applicable to Banks and Book value is a relative important measurement for Banks. In the calculation, PEG=1 because Peter Lynch thinks that the fair P/E ratio of the growth stock is equal to its earnings growth rate.

Frequently Asked Questions Learn more about Peter Lynch Fair Value →
What does a Peter Lynch Fair Value of $9.99 mean?
MainStreet Bancshares (MNSB) has a Peter Lynch Fair Value of $9.99 as of Jul. 31, 2026. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on MainStreet Bancshares and its competitors. This is 1565% above median its historical median of 0.60. Over the past decade, MainStreet Bancshares' Peter Lynch Fair Value has ranged from 0.44 to 5.29. According to the industry distribution chart, MainStreet Bancshares ranks #738 out of 874 companies in the Banks industry, placing it in the top 84.4%.
Is MainStreet Bancshares' Peter Lynch Fair Value too high?
MainStreet Bancshares' current Peter Lynch Fair Value of $9.99 is 1565% above median its 10-year median of 0.60. Over the past 10 years, this metric has ranged from a low of 0.44 to a high of 5.29. The Banks industry median Peter Lynch Fair Value is 1.11. MainStreet Bancshares' value of $9.99 is 800% above this industry median. Based on the distribution chart, MainStreet Bancshares ranks #738 out of 874 companies in the Banks industry, which is in the bottom quartile relative to peers. Overall, MainStreet Bancshares has a GF Score™ of 67/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does MainStreet Bancshares' Peter Lynch Fair Value compare to EMYB and NODB?
According to the Banks industry distribution chart, MainStreet Bancshares ranks #738 out of 874 companies for Peter Lynch Fair Value. This places MainStreet Bancshares in the lower half of its industry. The industry median Peter Lynch Fair Value is 1.11. MainStreet Bancshares' value of $9.99 is 800% above this benchmark. Historically, MainStreet Bancshares' own Peter Lynch Fair Value has ranged from 0.44 to 5.29 over the past decade. While the company's 10-year median is 0.60 vs. the industry median of 1.11, MainStreet Bancshares 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 Peter Lynch Fair Value for a Banks company?
The median Peter Lynch Fair Value among Banks companies is 1.11, based on 874 companies in the industry. Companies in the top quartile (top 25%) have a Peter Lynch Fair Value significantly above this median, while those in the bottom quartile fall well below. However, Peter Lynch Fair Value should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. MainStreet Bancshares's current Peter Lynch Fair Value of $9.99 is 800% 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 Peter Lynch Fair Value mean?
A high Peter Lynch Fair Value can signal that a stock is expensive relative to its fundamentals. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on MainStreet Bancshares and its competitors. For the Banks industry, the median Peter Lynch Fair Value is 1.11 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. MainStreet Bancshares's current Peter Lynch Fair Value is $9.99, which is 1565% above median its own 10-year median of 0.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is MainStreet Bancshares stock overvalued right now?
Based on GuruFocus' analysis, MainStreet Bancshares (MNSB) is currently considered Modestly Overvalued. The stock's GF Value™ is $19.58, compared to a current price of $23.10 — trading 18% above its estimated fair value. The current Peter Lynch Fair Value is $9.99, which is 1565% above median its 10-year median of 0.60 and 800% above the Banks industry median of 1.11. MainStreet Bancshares' overall GF Score™ is 67/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Peter Lynch Fair Value calculated?
Peter Lynch Fair Value is calculated from a company's financial statements. For MainStreet Bancshares (MNSB), the current Peter Lynch Fair Value is $9.99 as of Jul. 31, 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 MainStreet Bancshares (MNSB) Overvalued in 2026?

Based on GuruFocus' analysis, MainStreet Bancshares stock appears to be overvalued. The current stock price of $23.10 is trading 18% above its estimated GF Value™ of $19.58. GuruFocus considers MainStreet Bancshares to be Modestly Overvalued.

Key valuation signals for MNSB:

  • Peter Lynch Fair Value: $9.99 (1565% above median its 10-year median of 0.60)
  • GF Value™: $19.58 vs. price of $23.10 (18% above fair value)
  • GF Score™: 67/100 with 6 warning signs
  • Industry Position: 800% above the Banks median (#738 of 874)

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


MainStreet Bancshares Business Description

Other Exchanges MNSBP.PFD:USA5L0:Germany
Address 10089 Fairfax Boulevard, Fairfax, VA, USA, 22030
MainStreet Bancshares Inc is a bank holding company. It is focused on serving the borrowing, cash management and depository needs of small to medium-sized businesses, and professional practices and retail customers. The bank's products and services include business and consumer checking, premium interest-bearing checking, business account analysis, savings, certificates of deposit and other depository services, as well as a broad array of commercial, real estate and consumer loans.
67GF Score

Get the complete analysis for MNSB

Peter Lynch Fair Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$23.10
Price
$19.58
GF Value