Coinbase has launched commission-free stock and ETF trading for all eligible U.S. customers, venturing into the traditional finance sector. The service offers trading 5 days a week, 24 hours a day, and allows users to manage cryptocurrencies and stocks in a single portfolio with a minimum of $1. This move is part of Coinbase's vision to become an "all-in-one exchange," introducing over 8,000 assets aimed at connecting traditional markets and the cryptocurrency market.