CME's ether options market sees open interest hit all-time high

Open interest in CME Group's ether options is at an all-time high, according to data compiled by The Block.

CME Group's ether options market's open interest clocked in at $254 million in July. Open interest refers to the number of contracts outstanding.

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Open interest for bitcoin options is nearly at all-time highs on CME, with OI sitting at $1.59 billion, according to The Block's data dashboard. In April, OI for options tied to the largest cryptocurrency hit $1.69 billion. 

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Volumes for ether options, which were down in June, have been on a steady increase for much of the year, rising from $84 million in January to a peak in May of $334 million. As for bitcoin options, they rose in June for the third month running, but remain down from a peak in March.