#EthereumFuture The futures of Ether (symbol: ETH) from CME Group are cash-settled contracts based on the CME CF Ether-Dollar Reference Rate. Launched in 2018, ETHUSD_RR is a daily reference rate that aggregates Ether transactions in US dollars on Ether spot exchange platforms, during a one-hour calculation period, to the US dollar price of one ether at 16:00 GMT/BST.

To determine the Ether dollar reference price, the one-hour calculation window is divided into 12 intervals of five minutes, where the volume-weighted median is calculated for each five-minute partition, and then the twelve medians are averaged with the same weight to produce the day's ETHUSD_RR price.