With a market capitalization (market cap) of $156.49B — a measure of how much the company is worth — Interactive Brokers Group, Inc. is the 107th most valuable company in Financial Services as of August 18, 2026. Shares trade at $90.56, down +4.00% on the day.
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Interactive Brokers Group, Inc. operates as a sophisticated electronic brokerage, serving clients across the United States and globally. This firm manages the trading, clearing, and settlement for a broad spectrum of financial instruments, including equities, options, futures, foreign exchange, bonds, mutual funds, exchange-traded funds (ETFs), precious metals, and digital currencies. Beyond its core brokerage activities, the company provides custodial and administrative account services tailored for various entities such as hedge funds, mutual funds, ETFs, registered investment advisors, proprietary trading desks, introducing brokers, and individual investors. Its suite of services also includes custody solutions, prime brokerage, and financing options like securities lending and margin lending. Interactive Brokers caters to both institutional and individual clientele, utilizing advanced electronic exchanges and market platforms. The company was established in 1977 and maintains its headquarters in Greenwich, Connecticut.
Visit websiteAs of August 18, 2026, Interactive Brokers Group, Inc. (IBKR) is worth $156.49B — this is its market capitalization, the total value of all its outstanding shares.
Interactive Brokers Group, Inc.’s market cap is $156.49B, which ranks it #107 among the most valuable companies in the Financial Services sector tracked on MarketCapLens.
Interactive Brokers Group, Inc. (IBKR) shares trade at $90.56, down 4.00% on the day, as of August 18, 2026.
Fundamentals are annual. Figures labeled with their fiscal year.
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Interactive Brokers Group, Inc. trades at a price-to-earnings (P/E) ratio of 40.6, based on its latest share price and annual earnings per share.