Interactive Brokers

Interactive Brokers is a global electronic brokerage firm based in Greenwich, Connecticut, United States, offering direct-access online trade execution and clearing services across over 170 market destinations for a wide range of assets including stocks, options, futures, forex, bonds, funds, and crypto. The firm pioneered algorithmic trading and automation, serving sophisticated investors, active traders, and institutions with its low-cost, technology-driven tools. With over $20.5 billion in consolidated equity capital and a market capitalization exceeding $35 billion, it executes approximately 4,043,000 trades per day. Interactive Brokers stands as the second largest publicly-traded electronic broker by capitalization and daily average revenue trades (DARTs). The company was founded in 1977 by Thomas Peterffy. Its business model centers on agency brokerage earning commissions and fees from trade execution, clearing, and related services for clients.