Coinbase more than doubles fees on trades less than $10k, now 0.5% for both maker and taker, while cutting fees for large clients. Coinbase’s retail fees are now among the highest for US-based retail clients. In contrast, several mainstream brokerages including Charles Schwab, TD Ameritrade, and Interactive Brokers cut commissions in tandem to 0; such companies earn a majority of revenue from net interest, including significant spreads on client’s cash.