
Greenwich, Connecticut-based Interactive Brokers Group, Inc. (IBKR) operates as an automated electronic broker. Valued at $128.3 billion by market cap, the company specializes in executing and clearing trades in stocks, options, futures, foreign exchange instruments, bonds, mutual funds, and exchange-traded funds, as well as offers custody, prime brokerage, securities, and margin lending services.
Shares of this leader in the digital brokerage space have outperformed the broader market over the past year. IBKR has gained 43.3% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 15.4%. In 2026, IBKR stock is up 17.7%, surpassing the SPX’s 1.8% rise on a YTD basis.