International Bancshares (MEX:IBOC) E10: MXN100.39 (As of Jun. 2026)

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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.
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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.

MEX:IBOC International Bancshares Corp MEX:IBOC
71 GF Score
Price MXN1,495.00
GF Value MXN1,372.53
! 4 Warning Signs
View Full Analysis

What is International Bancshares E10?

International Bancshares MEX:IBOC 71 E10 is MXN100.39 as of Jun. 2026. GuruFocus rates MEX:IBOC with a GF Score™ of 71/100 and a GF Value™ of MXN1,372.53. The stock has 4 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.

International Bancshares's adjusted earnings per share data for the three months ended in Jun. 2026 was MXN26.871. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is MXN100.39 for the trailing ten years ended in Jun. 2026.

During the past 12 months, International Bancshares's average E10 Growth Rate was 12.30% per year. During the past 3 years, the average E10 Growth Rate was 13.30% per year. During the past 5 years, the average E10 Growth Rate was 14.80% per year. During the past 10 years, the average E10 Growth Rate was 9.90% 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 International Bancshares was 16.20% per year. The lowest was 0.00% per year. And the median was 5.40% per year.

As of today (2026-08-19), International Bancshares's current stock price is MXN1495.00. International Bancshares's E10 for the quarter that ended in Jun. 2026 was MXN100.39. International Bancshares's Shiller PE Ratio of today is 14.89.

During the past 13 years, the highest Shiller PE Ratio of International Bancshares was 22.12. The lowest was 7.23. And the median was 15.30.


International Bancshares  (MEX:IBOC) 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.

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

Shiller PE Ratio=Share Price/E10
=1495.00/100.39
=14.89

* 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 International Bancshares was 22.12. The lowest was 7.23. And the median was 15.30.


Be Aware

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


International Bancshares E10 Related Terms


International Bancshares E10 Historical Data

* Premium members only.

The historical data trend for International 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.

International Bancshares E10 Chart

International 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 58.25 63.44 61.91 101.07 107.33

International Bancshares Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 101.97 101.77 107.33 109.98 100.39

MEX:IBOC vs SFBS, FULT, FFIN: E10 Comparison

For the Banks - Regional subindustry, International 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.


International Bancshares Shiller PE Ratio vs Banks Industry

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

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


MEX:IBOC
71GF Score
International Bancshares Corp MEX:IBOC
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

International 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, International Bancshares's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=26.871/333.9520*333.9520
=26.871

Current CPI (Jun. 2026) = 333.9520.

International Bancshares Quarterly Data

per share eps CPI Adj_EPS
201609 10.441 241.428 14.442
201612 10.927 241.432 15.114
201703 9.038 243.801 12.380
201706 11.026 244.955 15.032
201709 10.707 246.819 14.487
201712 13.355 246.524 18.091
201803 14.534 249.554 19.449
201806 15.523 251.989 20.572
201809 14.403 252.439 19.054
201812 17.279 251.233 22.968
201903 15.324 254.202 20.132
201906 14.599 256.143 19.034
201909 15.399 256.759 20.029
201912 14.899 256.974 19.362
202003 12.427 258.115 16.078
202006 15.003 257.797 19.435
202009 14.801 260.280 18.990
202012 15.118 260.474 19.383
202103 16.353 264.877 20.618
202106 28.864 271.696 35.478
202109 17.683 274.310 21.528
202112 18.257 278.802 21.868
202203 16.725 287.504 19.427
202206 18.509 296.311 20.860
202209 26.954 296.808 30.327
202212 32.948 296.797 37.073
202303 29.381 301.836 32.507
202306 27.773 305.109 30.398
202309 28.915 307.789 31.373
202312 29.026 306.746 31.600
202403 25.890 312.332 27.682
202406 28.579 314.175 30.378
202409 31.504 315.301 33.368
202412 38.583 315.605 40.826
202503 31.915 319.799 33.327
202506 30.315 322.561 31.386
202509 31.919 324.800 32.818
202512 30.790 324.054 31.730
202603 29.574 330.213 29.909
202606 26.871 333.952 26.871

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 MXN100.39 mean?
International Bancshares (MEX:IBOC) has a E10 of MXN100.39 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on International Bancshares and its competitors.
Is International Bancshares' E10 too high?
International Bancshares' current E10 is MXN100.39. Overall, International Bancshares has a GF Score™ of 71/100, reflecting its overall financial health beyond just this single metric.
How does International Bancshares' E10 compare to SFBS and FULT?
International Bancshares' E10 of MXN100.39 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 International Bancshares and its competitors. International Bancshares's current E10 is MXN100.39. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is International Bancshares stock overvalued right now?
International Bancshares (MEX:IBOC) has a current E10 of MXN100.39. The stock's GF Value™ is MXN1,372.53, compared to a current price of MXN1,495.00 — trading 8.9% above its estimated fair value. The current E10 is MXN100.39. International Bancshares' overall GF Score™ is 71/100 with 4 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 International Bancshares (MEX:IBOC), the current E10 is MXN100.39 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 International Bancshares (MEX:IBOC) Overvalued in 2026?

Based on GuruFocus' analysis, International Bancshares stock appears to be overvalued. The current stock price of MXN1,495.00 is trading 8.9% above its estimated GF Value™ of MXN1,372.53.

Key valuation signals for MEX:IBOC:

  • E10: MXN100.39
  • GF Value™: MXN1,372.53 vs. price of MXN1,495.00 (8.9% above fair value)
  • GF Score™: 71/100 with 4 warning signs

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


International Bancshares Business Description

Other Exchanges IBOC:USAIB4:Germany
Address 1200 San Bernardo Avenue, Laredo, TX, USA, 78042-1359
International Bancshares Corp is a registered multibank financial holding company providing a diversified range of commercial and retail banking services in its main banking and branch facilities located in north, south, central, and southeast Texas and the State of Oklahoma.. The company provides commercial and retail banking services in Texas and Oklahoma. The services provided by the bank include checking, savings, bank cards, lending, insurance, mortgage, investments, and other services.
71GF Score

Get the complete analysis for MEX:IBOC

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

MXN1,495.00
Price
MXN1,372.53
GF Value