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.
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.
Interactive Brokers GroupHAM:KY6 -0.44%66 Cyclically Adjusted PB Ratio is 11.54 as of Aug. 15, 2026, which is 175% above its 10-year median of 4.20. GuruFocus rates HAM:KY6 with a GF Score™ of 66/100 and a GF Value™ of €42.97 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 599 Capital Markets companies, Interactive Brokers Group ranks worse than 96.16% on this metric.
The historical rank and industry rank for Interactive Brokers Group's Cyclically Adjusted PB Ratio or its related term are showing as below:
HAM:KY6'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 2.16 Med: 4.2 Max: 13.04
Current: 12.04
During the past years, Interactive Brokers Group's highest Cyclically Adjusted PB Ratio was 13.04. The lowest was 2.16. And the median was 4.20.
HAM:KY6's Cyclically Adjusted PB Ratio is ranked worse than 96.16% of 599
companies
in the Capital Markets industry
Industry Median: 1.28
vs HAM:KY6: 12.04
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 adjusted book value per share data for the three months ended in Jun. 2026 was €11.374. 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 €6.81 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Interactive Brokers Group (HAM:KY6) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Interactive Brokers Group Cyclically Adjusted PB Ratio Related Terms
Interactive Brokers Group Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Interactive Brokers Group's Cyclically Adjusted PB Ratio 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 PB Ratio Chart
HAM:KY6 vs LPLA, TW, CRCL: Cyclically Adjusted PB Ratio 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.
Interactive Brokers Group Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
* 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 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.
What does a Cyclically Adjusted PB Ratio of 11.54 mean?
Interactive Brokers Group (HAM:KY6) has a Cyclically Adjusted PB Ratio of 11.54 as of Aug. 15, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Interactive Brokers Group and its competitors. This is 175% above median its historical median of 4.20. Over the past decade, Interactive Brokers Group's Cyclically Adjusted PB Ratio has ranged from 2.16 to 13.04. According to the industry distribution chart, Interactive Brokers Group ranks #576 out of 599 companies in the Capital Markets industry, placing it in the top 96.2%.
Is Interactive Brokers Group's Cyclically Adjusted PB Ratio too high?
Interactive Brokers Group's current Cyclically Adjusted PB Ratio of 11.54 is 175% above median its 10-year median of 4.20. Over the past 10 years, this metric has ranged from a low of 2.16 to a high of 13.04. The Capital Markets industry median Cyclically Adjusted PB Ratio is 1.28. Interactive Brokers Group's value of 11.54 is 801.6% above this industry median. Based on the distribution chart, Interactive Brokers Group ranks #576 out of 599 companies in the Capital Markets industry, which is in the bottom quartile relative to peers. Overall, Interactive Brokers Group has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Interactive Brokers Group's Cyclically Adjusted PB Ratio compare to LPLA and TW?
According to the Capital Markets industry distribution chart, Interactive Brokers Group ranks #576 out of 599 companies for Cyclically Adjusted PB Ratio. This places Interactive Brokers Group in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.28. Interactive Brokers Group's value of 11.54 is 801.6% above this benchmark. Historically, Interactive Brokers Group's own Cyclically Adjusted PB Ratio has ranged from 2.16 to 13.04 over the past decade. While the company's 10-year median is 4.20 vs. the industry median of 1.28, Interactive Brokers Group 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 Cyclically Adjusted PB Ratio for a Capital Markets company?
The median Cyclically Adjusted PB Ratio among Capital Markets companies is 1.28, based on 599 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Interactive Brokers Group's current Cyclically Adjusted PB Ratio of 11.54 is 801.6% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Interactive Brokers Group and its competitors. For the Capital Markets industry, the median Cyclically Adjusted PB Ratio is 1.28 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Interactive Brokers Group's current Cyclically Adjusted PB Ratio is 11.54, which is 175% above median its own 10-year median of 4.20. 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 (HAM:KY6) is currently considered Significantly Overvalued. The stock's GF Value™ is €42.97, compared to a current price of €78.56 — trading 82.8% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 11.54, which is 175% above median its 10-year median of 4.20 and 801.6% above the Capital Markets industry median of 1.28. Interactive Brokers Group's overall GF Score™ is 66/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Interactive Brokers Group (HAM:KY6), the current Cyclically Adjusted PB Ratio is 11.54 as of Aug. 15, 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 (HAM:KY6) Overvalued in 2026?
Based on GuruFocus' analysis, Interactive Brokers Group stock appears to be overvalued.
The current stock price of €78.56 is trading 82.8% above its estimated GF Value™ of €42.97.
GuruFocus considers Interactive Brokers Group to be Significantly Overvalued.
Key valuation signals for HAM:KY6:
Cyclically Adjusted PB Ratio: 11.54 (175% above median its 10-year median of 4.20)
GF Value™: €42.97 vs. price of €78.56 (82.8% above fair value)
Industry Position: 801.6% above the Capital Markets median (#576 of 599)
No single metric tells the full story. See the HAM:KY6 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
66GF Score
Get the complete analysis for HAM:KY6
Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
HAM:KY6 has been successfully added to your 
