You've listed exchanges, but Coinbase is much more than just an exchange. They are also a broker, as well as bank (provision of loans), custody-provider, etc.

You've listed exchanges, but Coinbase is much more than just an exchange. They are also a broker, as well as bank (provision of loans), custody-provider, etc. here are some brokers... Charles Schwab (SCHW): $119.81bn Interactive Brokers (IBKR): $32.47bn