| IBKR Market Cap History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the IBKR market cap history going back to 2/26/2010:
Also see: IBKR Shares Outstanding History and IBKR YTD Return |
IBKR Market Cap History — Interactive Brokers Group Capitalization Over Time
As of 5/5/2026 Interactive Brokers Group has a market cap of 37.38 billion. Investors often follow the IBKR market cap history to compare the size of the company over time.
This page shows IBKR market capitalization trends over time, with 63 market cap datapoints presented, dating back to 2/26/2010.
| IBKR Market Cap History Chart | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IBKR Historical Market Cap: +27.73% CAGR 
Mouse over chart for data details
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| IBKR Stock Price Chart |
| About Interactive Brokers Group Inc |
| Interactive Brokers Group, Inc. is an automated global electronic broker. Co. custody and service accounts for hedge and mutual funds, exchange-traded funds (ETFs), registered investment advisors, proprietary trading groups, introducing brokers and individual investors. It specializes in routing orders and executing and processing trades in stocks, options, futures, foreign exchange instruments (forex), bonds, mutual funds, ETFs, and precious metals on more than 150 electronic exchanges and market centers. We show 63 historical shares outstanding datapoints in our IBKR shares outstanding history coverage, used to compute IBKR market cap on those dates. Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing IBKR market cap history over the course of time is important for investors interested in comparing IBKR's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of IBKR versus a peer is one thing; comparing IBKR market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like IBKR can fluctuate over the course of history. With this page we aim to empower investors researching IBKR by allowing them to research the IBKR market cap history. |
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| Video: The Importance of Market Cap | |
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Video: The Importance of Market Cap
| IBKR Share Performance |
| Market Cap Peers |
| Interactive Brokers Group (IBKR) is categorized under the Financials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:
IBMG Market Cap History IBMH Market Cap History IBMI Market Cap History IBND Market Cap History IBOC Market Cap History IBTX Market Cap History ICBK Market Cap History ICCH Market Cap History ICE Market Cap History ICF Market Cap History More Financials companies » |
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