Interactive Brokers Group, Inc. operates as an automated electronic broker and market maker in approximately 120 electronic exchanges and market centers worldwide. It specializes in executing and clearing trades in securities, futures, foreign exchange instruments, bonds, and mutual funds. The company custodies and services accounts for hedge and mutual funds, registered investment advisors, proprietary trading groups, introducing brokers, and individual investors. It offers custody, prime brokerage, securities, and margin lending services. The company provides electronic execution and clearing services; and market making services on exchanges and market centers, primarily in exchange-traded equities, equity options, and equity-index options and futures. Interactive Brokers Group, Inc. was founded in 1977 and is headquartered in Greenwich, Connecticut.