Just eight exchanges handle 90% of all cryptocurrency trading volume, led by Binance, according to data compiled by Kaiko. Binance is followed by OKX, Coinbase, Upbit, Bybit, KuCoin, Huobi and Kraken crypto trading volume. Overall, both spot volumes and market depth are heavily concentrated on just 8 platforms, which have stayed pretty consistent over the years, Kaiko said.