Yahoo Finance·2026-01-07 21:05Core Insights - SoFi Technologies and Interactive Brokers Group have shown significant stock price increases in 2023, with SoFi up 496% and Interactive Brokers up 278% [1][2] - Both companies have capitalized on favorable stock market conditions, leading to substantial returns for investors [2] SoFi Technologies - SoFi operates a digital-native banking platform, initially starting as a student loan provider and expanding into personal and home loans, generating income through interest, fees, and loan sales [3] - In Q3, SoFi's member count reached 12.6 million, reflecting a 265% increase since 2021, with strong cross-selling resulting in 18.5 million total products across its member base [4][7] - The company became profitable for the first time in 2024 and continues to grow rapidly [2][7] Interactive Brokers Group - Interactive Brokers functions as a global brokerage and clearing platform, allowing customers to trade a variety of investments, including stocks, options, futures, and cryptocurrencies [5] - The brokerage platform is designed for tech-savvy investors, offering analytics, global market access, and a powerful API for automated trading strategies [5] - The company maintains low fees and high profit margins due to its operational efficiency and cost structure [6]