Key Takeaways Interactive Brokers shares gained 31.9% in a year, outperforming the industry and the S&P 500 index.IBKR's technology platform kept compensation costs low, driving a 22.8% revenue CAGR since 2020.IBKR expanded products, global market access and dividends, including a four-for-one stock split.Interactive Brokers Group, Inc.’s (IBKR) shares have jumped 31.9%  in the past year, outperforming the industry’s 25.4% growth and the S&P 500 index’s 16.7% rise. In the same time frame, IBKR’s peers, Robi ...