Robinhood is a commission-free retail brokerage that earns most of its revenue from payment for order flow (PFOF) -- selling the stream of customer stock, options, and crypto orders to market makers like Citadel Securities, which pay Robinhood a fee per trade for the right to execute it. Crypto has become an outsized contributor to this model: crypto-related PFOF and transaction revenue can run far higher per dollar of volume than in equities or options, and Robinhood's transaction-based revenue jumped sharply in recent years as crypto trading volume grew. FY2025 total net revenue reached $4.473 billion with $1.883 billion in net income, up from $2.951 billion revenue and $1.411 billion net income in FY2024 -- a rapid rebound from a $541 million net loss in FY2023. Robinhood has used acquisitions to diversify beyond pure trading: Say Technologies ($140 million, 2021) added shareholder-communication tools, X1 ($95 million, 2023) added credit-card technology behind the Robinhood Gold Card, and TradePMR and Bitstamp (both 2025) pushed the company into registered-investment-adviser custody and global crypto-exchange infrastructure, respectively -- a broader push toward becoming a full financial platform rather than a single-product trading app. Robinhood's revenue model has shifted significantly since its early years of relying almost entirely on payment for order flow and net interest income on customer cash balances, now spanning crypto trading fees, prediction-market contracts, the Robinhood Gold subscription (bundling premium research, margin lending, and the X1-derived credit card), and, following the TradePMR and Bitstamp deals, custody and infrastructure fees from registered investment advisers and institutional crypto clients.