In July $CFX 2025, the trading volume of Solana (SOL) futures on the Chicago Mercantile Exchange (CME) soared to $8.1 billion, a month-on-month increase of 252%, setting a record high since its listing in March. At the same time, open interest (OI) also surged by 370%, reaching $800 million, indicating a significant increase in institutional investors' interest in SOL. This growth is mainly attributed to market expectations for a Solana ETF and the overall recovery of the cryptocurrency market. Although the spot price of SOL recently fell back to around $160, the activity in the futures market indicates that institutions are still actively positioning themselves, which may drive the price to break through the key resistance level of $195 in the future.