Interactive Brokers Group (MEX:IBKR) Cyclically Adjusted Book per Share: MXN128.06 (As of Mar. 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.

MEX:IBKR Interactive Brokers Group Inc MEX:IBKR
77 GF Score
Price MXN1,675.00
GF Value MXN730.36
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Interactive Brokers Group Cyclically Adjusted Book per Share?

Interactive Brokers Group MEX:IBKR 77 Cyclically Adjusted Book per Share is MXN128.06 as of Mar. 2026. GuruFocus rates MEX:IBKR with a GF Score™ of 77/100 and a GF Value™ of MXN730.36 (Significantly 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 PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Interactive Brokers Group's adjusted book value per share for the three months ended in Mar. 2026 was MXN226.079. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is MXN128.06 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Interactive Brokers Group's average Cyclically Adjusted Book Growth Rate was 14.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 12.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 12.50% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 8.40% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Interactive Brokers Group was 15.80% per year. The lowest was -5.50% per year. And the median was 11.70% per year.

As of today (2026-07-18), Interactive Brokers Group's current stock price is MXN1675.00. Interactive Brokers Group's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was MXN128.06. Interactive Brokers Group's Cyclically Adjusted PB Ratio of today is 13.08.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Interactive Brokers Group was 13.04. The lowest was 2.16. And the median was 4.18.


Interactive Brokers Group  (MEX:IBKR) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Interactive Brokers Group's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=1675.00/128.06
=13.08

* 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 Cyclically Adjusted PB Ratio of Interactive Brokers Group was 13.04. The lowest was 2.16. And the median was 4.18.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Interactive Brokers Group Cyclically Adjusted Book per Share Related Terms


Interactive Brokers Group Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Interactive Brokers Group's Cyclically Adjusted Book per Share 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.

Interactive Brokers Group Cyclically Adjusted Book per Share Chart

Interactive Brokers Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 93.35 105.14 97.23 101.41 128.39

Interactive Brokers Group Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share 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 138.13 121.66 125.62 128.39 128.06

MEX:IBKR vs LPLA, TW, CRCL: Cyclically Adjusted Book per Share Comparison

For the Capital Markets subindustry, Interactive Brokers Group's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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.


Interactive Brokers Group Cyclically Adjusted PB Ratio vs Capital Markets Industry

For the Capital Markets industry and Financial Services sector, Interactive Brokers Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Interactive Brokers Group's Cyclically Adjusted PB Ratio falls into.


MEX:IBKR
77GF Score
Interactive Brokers Group Inc MEX:IBKR
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Interactive Brokers Group Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

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

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, Interactive Brokers Group's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=226.079/330.2130*330.2130
=226.079

Current CPI (Mar. 2026) = 330.2130.

Interactive Brokers Group Quarterly Data

Book Value per Share CPI Adj_Book
201606 64.417 241.018 88.256
201609 69.753 241.428 95.405
201612 73.843 241.432 100.997
201703 69.029 243.801 93.495
201706 67.478 244.955 90.964
201709 69.572 246.819 93.079
201712 74.875 246.524 100.293
201803 71.927 249.554 95.175
201806 79.017 251.989 103.546
201809 77.400 252.439 101.246
201812 83.794 251.233 110.136
201903 85.558 254.202 111.141
201906 86.372 256.143 111.349
201909 90.351 256.759 116.199
201912 89.201 256.974 114.624
202003 113.494 258.115 145.196
202006 113.707 257.797 145.648
202009 112.405 260.280 142.606
202012 106.885 260.474 135.502
202103 114.578 264.877 142.840
202106 116.241 271.696 141.277
202109 122.068 274.310 146.945
202112 125.073 278.802 148.136
202203 124.435 287.504 142.920
202206 127.504 296.311 142.092
202209 130.869 296.808 145.598
202212 134.915 296.797 150.105
202303 131.313 301.836 143.658
202306 129.735 305.109 140.409
202309 137.976 307.789 148.028
202312 142.078 306.746 152.947
202403 144.586 312.332 152.864
202406 165.789 314.175 174.252
202409 187.422 315.301 196.286
202412 204.909 315.605 214.393
202503 211.356 319.799 218.239
202506 205.842 322.561 210.725
202509 210.327 324.800 213.832
202512 216.797 324.054 220.917
202603 226.079 330.213 226.079

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of MXN128.06 mean?
Interactive Brokers Group (MEX:IBKR) has a Cyclically Adjusted Book per Share of MXN128.06 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Interactive Brokers Group and its competitors.
Is Interactive Brokers Group's Cyclically Adjusted Book per Share too high?
Interactive Brokers Group's current Cyclically Adjusted Book per Share is MXN128.06. Overall, Interactive Brokers Group has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Interactive Brokers Group's Cyclically Adjusted Book per Share compare to LPLA and TW?
Interactive Brokers Group's Cyclically Adjusted Book per Share of MXN128.06 can be compared against companies in the Capital Markets industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Capital Markets company?
A good Cyclically Adjusted Book per Share depends on the Capital Markets industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Interactive Brokers Group and its competitors. Interactive Brokers Group's current Cyclically Adjusted Book per Share is MXN128.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Interactive Brokers Group stock overvalued right now?
Based on GuruFocus' analysis, Interactive Brokers Group (MEX:IBKR) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN730.36, compared to a current price of MXN1,675.00 — trading 129.3% above its estimated fair value. The current Cyclically Adjusted Book per Share is MXN128.06. Interactive Brokers Group's overall GF Score™ is 77/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Interactive Brokers Group (MEX:IBKR), the current Cyclically Adjusted Book per Share is MXN128.06 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 Interactive Brokers Group (MEX:IBKR) Overvalued in 2026?

Based on GuruFocus' analysis, Interactive Brokers Group stock appears to be overvalued. The current stock price of MXN1,675.00 is trading 129.3% above its estimated GF Value™ of MXN730.36. GuruFocus considers Interactive Brokers Group to be Significantly Overvalued.

Key valuation signals for MEX:IBKR:

  • Cyclically Adjusted Book per Share: MXN128.06
  • GF Value™: MXN730.36 vs. price of MXN1,675.00 (129.3% above fair value)
  • GF Score™: 77/100 with 8 warning signs

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


Interactive Brokers Group Business Description

Address One Pickwick Plaza, Greenwich, CT, USA, 06830
Interactive Brokers is a large, automated, retail and institutional brokerage that boasted nearly $780 billion in customer equity at the end of 2025. The company cut its teeth as a market maker, introducing US financial markets to automated and algorithmic training before expanding into brokerage services in 1993. The firm has a wide-ranging client base, with its best-in-class order execution and extremely low margin lending rates catering to a sophisticated audience of hedge funds, proprietary traders, and introducing brokers that account for about 45% of the firm's commissions. With operations spanning more than 170 electronic exchanges, 40 countries, and 29 currencies, Interactive Brokers caters to a global clientele, with more than 80% of active accounts sitting outside the US.
77GF Score

Get the complete analysis for MEX:IBKR

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

MXN1,675.00
Price
MXN730.36
GF Value