Odaily News According to Coinglass data, the total open interest of BTC futures contracts on the entire network is 509,200 BTC, equivalent to approximately US$28.88 billion. Among them, the open interest of CME BTC contracts is 143,000 BTC (approximately US$8.1 billion), ranking first; the open interest of Binance BTC contracts is 126,300 BTC (approximately US$7.161 billion), ranking second.