MNSB (MainStreet Bancshares) E10: $1.94 (As of Mar. 2026)


MNSB MainStreet Bancshares Inc MNSB
66 GF Score
Price $25.04
GF Value $19.63
Valuation Modestly Overvalued
! 8 Warning Signs
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What is MainStreet Bancshares E10?

MainStreet Bancshares MNSB +3.57% 66 E10 is $1.94 as of Mar. 2026. GuruFocus rates MNSB with a GF Score™ of 66/100 and a GF Value™ of $19.63 (Modestly Overvalued). The stock has 8 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

MainStreet Bancshares's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.480. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $1.94 for the trailing ten years ended in Mar. 2026.

During the past 12 months, MainStreet Bancshares's average E10 Growth Rate was 9.60% per year. During the past 3 years, the average E10 Growth Rate was 5.90% per year. During the past 5 years, the average E10 Growth Rate was 16.00% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of MainStreet Bancshares was 41.60% per year. The lowest was 5.90% per year. And the median was 31.40% per year.

As of today (2026-06-27), MainStreet Bancshares's current stock price is $25.04. MainStreet Bancshares's E10 for the quarter that ended in Mar. 2026 was $1.94. MainStreet Bancshares's Shiller PE Ratio of today is 12.91.

During the past 13 years, the highest Shiller PE Ratio of MainStreet Bancshares was 67.03. The lowest was 7.81. And the median was 18.40.


MainStreet Bancshares  (NAS:MNSB) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

MainStreet Bancshares's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=25.04/1.94
=12.91

* 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.

During the past 13 years, the highest Shiller P/E Ratio of MainStreet Bancshares was 67.03. The lowest was 7.81. And the median was 18.40.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


MainStreet Bancshares E10 Related Terms


MainStreet Bancshares E10 Historical Data

* Premium members only.

The historical data trend for MainStreet Bancshares's E10 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 E10 Chart

MainStreet Bancshares Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.22 1.59 1.95 1.73 1.89

MainStreet Bancshares Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
E10 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 1.77 1.82 1.88 1.89 1.94

MNSB vs BKUT, NODB, SBKO: E10 Comparison

For the Banks - Regional subindustry, MainStreet Bancshares's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


MainStreet Bancshares Shiller PE Ratio vs Banks Industry

For the Banks industry and Financial Services sector, MainStreet Bancshares's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where MainStreet Bancshares's Shiller PE Ratio falls into.


MNSB
66GF Score
MainStreet Bancshares Inc MNSB
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

MainStreet Bancshares E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, MainStreet Bancshares's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.48/330.2130*330.2130
=0.480

Current CPI (Mar. 2026) = 330.2130.

MainStreet Bancshares Quarterly Data

per share eps CPI Adj_EPS
201606 0.190 241.018 0.260
201609 0.229 241.428 0.313
201612 0.238 241.432 0.326
201703 0.229 243.801 0.310
201706 0.257 244.955 0.346
201709 0.250 246.819 0.334
201712 0.140 246.524 0.188
201803 0.290 249.554 0.384
201806 0.260 251.989 0.341
201809 0.350 252.439 0.458
201812 0.480 251.233 0.631
201903 0.390 254.202 0.507
201906 0.420 256.143 0.541
201909 0.450 256.759 0.579
201912 0.430 256.974 0.553
202003 0.420 258.115 0.537
202006 -0.080 257.797 -0.102
202009 0.630 260.280 0.799
202012 0.920 260.474 1.166
202103 0.650 264.877 0.810
202106 0.870 271.696 1.057
202109 0.560 274.310 0.674
202112 0.560 278.802 0.663
202203 0.640 287.504 0.735
202206 0.710 296.311 0.791
202209 0.970 296.808 1.079
202212 0.950 296.797 1.057
202303 1.010 301.836 1.105
202306 0.850 305.109 0.920
202309 0.770 307.789 0.826
202312 0.610 306.746 0.657
202403 0.360 312.332 0.381
202406 0.270 314.175 0.284
202409 -0.040 315.301 -0.042
202412 -2.200 315.605 -2.302
202503 0.250 319.799 0.258
202506 0.530 322.561 0.543
202509 0.520 324.800 0.529
202512 0.460 324.054 0.469
202603 0.480 330.213 0.480

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of $1.94 mean?
MainStreet Bancshares (MNSB) has a E10 of $1.94 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on MainStreet Bancshares and its competitors.
Is MainStreet Bancshares' E10 too high?
MainStreet Bancshares' current E10 is $1.94. Overall, MainStreet Bancshares has a GF Score™ of 66/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does MainStreet Bancshares' E10 compare to BKUT and NODB?
MainStreet Bancshares' E10 of $1.94 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 E10 for a Banks company?
A good E10 depends on the Banks industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on MainStreet Bancshares and its competitors. MainStreet Bancshares's current E10 is $1.94. 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 $19.63, compared to a current price of $25.04 — trading 27.6% above its estimated fair value. The current E10 is $1.94. MainStreet Bancshares' overall GF Score™ is 66/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For MainStreet Bancshares (MNSB), the current E10 is $1.94 as of Mar. 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 $25.04 is trading 27.6% above its estimated GF Value™ of $19.63. GuruFocus considers MainStreet Bancshares to be Modestly Overvalued.

Key valuation signals for MNSB:

  • E10: $1.94
  • GF Value™: $19.63 vs. price of $25.04 (27.6% above fair value)
  • GF Score™: 66/100 with 8 warning signs

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.
66GF Score

Get the complete analysis for MNSB

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$25.04
Price
$19.63
GF Value