Odaily Planet Daily News CCData report shows that in June, the trading volume of centralized cryptocurrency exchanges fell by 21.8%, with spot and derivatives trading volumes showing a downward trend for the third consecutive month since March. Total spot and derivatives trading volume across all centralized exchanges in June was $4.2 trillion, down 53% from the record $9 trillion set at the end of March. The report noted that open interest on crypto derivatives exchanges fell sharply by 9.7% as a sharp drop in the price of Bitcoin and other crypto assets in June triggered a series of liquidations. Total futures trading volume at the Chicago Mercantile Exchange (CME), the world's largest institutional derivatives exchange, also saw a significant decline, falling 11.5% to $103 billion in June. The main reason for this decline was a sharp decline in Bitcoin and Ethereum futures contract volumes, which fell by 11.5% and 15.8% respectively. (Cointelegraph)