XRP futures contracts on the Chicago Mercantile Exchange (CME) recorded over $19 million in notional trading volume on their first day and at least $10 million on Tuesday, data shows.The inaugural trade, a block transaction, was cleared by Hidden Road on May 18. CME's XRP futures are available in two sizes: standard contracts representing 50,000 XRP and micro contracts representing 2,500 XRP. Both are cash-settled and benchmarked to the CME CF XRP-Dollar Reference Rate, calculated daily at 15:00 UTC
source: https://www.coindesk.com/markets/2025/05/21/cmes-xrp-futures-have-pulled-in-nearly-30m-since-debut-fueling-xrp-etf-hopes