CFTC data showed leveraged funds held a net short of 36,200 BTC in standard CME Bitcoin futures as of Aug. 4, up 1,835 BTC from a week earlier.
CME moved to challenge the CFTC's Kalshi bitcoin perpetual futures approval, turning U.S. crypto perps into a fight over swaps, futures and retail leverage.
CME's 24/7 crypto futures and options launch traded more than 7,200 contracts and about $50M notional in its first weekend.
CME's Nasdaq CME Crypto Index futures launch June 8, giving traders one regulated futures contract tied to BTC, ETH, XRP, SOL, ADA, LINK and XLM.