Interactive Brokers is an online brokerage that generates trading commissions (around 31% of net revenue) from facilitating trading in a wide range of products, including equity, options, futures, foreign exchange, bonds, mutual funds, and exchange-traded funds. Interactive Brokers also generates net interest income (about 64% of net revenue) from idle client cash and earns fees (about 6% of net revenue) from ancillary services. Principal trading and other miscellaneous activities are small (about 5% of net revenue). The firm derives about 70% of its net revenue from the US and 30% from international markets.