Interactive Brokers Group, Inc. (IBKR)

Interactive Brokers Group, Inc. (IBG, Inc.) is an automated global broker. It custodies and services accounts, and specializes in routing orders and executing and processing trades in stocks, options, futures, forex, bonds, mutual funds, ETFs, precious metals and forecast contracts on more than 170 electronic exchanges and market centers in 40 countries and 29 currencies. Customers can also trade certain cryptocurrencies through third-party providers (such as Paxos Trust Company and Zero Hash LLC) that execute, clear and custody them. The business traces its roots to a market-making business founded by Chairman Thomas Peterffy on the American Stock Exchange floor in 1977, and it has since focused on proprietary software that automates broker-dealer functions. IBG, Inc. is a holding company whose primary asset is about 26.3% of the membership interests of IBG LLC, of which it is the sole managing member. The remaining 73.7% is held by IBG Holdings LLC, which is owned by Mr. Peterffy and his affiliates, management and other employees, and certain other members. The company joined the S&P 500 Index on August 28, 2025.

Its offerings are organized around trading platforms and account types. The platforms are IBKR Trader Workstation (the flagship desktop platform), IBKR Desktop, IBKR Mobile, the web-based IBKR Client Portal, the IBKR GlobalTrader mobile app, and IBKR APIs, which range from an Excel API to an institutional FIX API. IBKR Pro offers low-cost access to a broad range of products for sophisticated investors. IBKR Lite offers commission-free trading of U.S. exchange-listed stocks and ETFs to participating U.S. customers. The IBKR Universal Account lets customers transact in 29 currencies and many product classes from one account. It comes with cash management services such as Request for Payment, local-currency deposits, direct and mobile check deposit, and an Insured Bank Deposit Sweep Program that extends FDIC coverage on eligible cash balances. Other offerings include the Investors' Marketplace, a Mutual Fund Marketplace with more than 50,000 funds, a Bond Marketplace covering over one million bonds, and cryptocurrency trading.

IBKR custodies and services accounts for hedge and mutual funds, ETFs, registered investment advisors, proprietary trading groups, introducing brokers and individual investors. Since launching its electronic brokerage business in 1993, it has grown to approximately 4.4 million institutional and individual customers. Its low-cost, high-speed execution makes it especially attractive to sophisticated and active investors.

In the U.S., the company operates primarily from its headquarters in Greenwich, Connecticut and from Chicago, Illinois. Abroad, it has offices in Canada, the United Kingdom, Ireland, Switzerland, Hungary, Dubai, India, China (Hong Kong and Shanghai), Japan, Singapore and Australia. It had 3,182 employees worldwide as of December 31, 2025. Its proprietary technology integrates with a growing number of electronic trading venues to create computerized platforms requiring minimal human intervention, and it continuously adapts its order routing software, including IB SmartRouting, to secure good execution prices.